Am 19.09.2013 10:46, schrieb Patrick Shirkey: Unless your research is completely academic I do not see a practical use for its results on the user-side. For Audacity latency is not a big issue. It does not build for realtime-application rather for offline editing, audio-restauration etc, in that field a latency of 100ms is still OK....

On Thu, Sep 19, 2013 at 06:46:11PM +1000, Patrick Shirkey wrote: Easy using jack_delay. 1. Measure the round-trip latency of your sound card (with an external analog loop). 2. Measure jack_delay -> pa_source -> audacity -> pa_sink -> jack_delay. 3. If pa_source and pa_sink are a single Jack client (probably not), subtract one period from the result of (2). 4. Add the two values. Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow)

On Thu, September 19, 2013 8:04 pm, Patrick Shirkey wrote: If I use ecasound instead of audacity: ecasound -f:32,2,48000 -b:32 -i alsa -o alsa 8095.992 frames 168.667 ms total roundtrip latency extra loopback latency: 8095 frames use 4047 for the backend arguments -I and -O 8095.992 frames 168.667 ms total roundtrip latency extra loopback latency: 8095 frames use 4047 for the backend arguments -I and -O 8095.992 frames 168.667 ms total roundtrip latency extra loopback latency: 8095 frames use 4047 for the backend arguments -I and -O 8095.994 frames 168.667 ms total roundtrip latency extra loopback latency: 8095 frames use 4047 for the backend arguments -I and -O ecasound -f:32,2,48000 -b:64 -i alsa -o alsa 9280.000 frames 193.333 ms total roundtrip latency extra loopback latency: 9280 frames use 4640 for the backend arguments -I and -O 9280.000 frames 193.333 ms total roundtrip latency extra loopback latency: 9280 frames use 4640 for the backend arguments -I and -O 9279.999 frames 193.333 ms total roundtrip latency extra loopback latency: 9279 frames use 4639 for the backend arguments -I and -O -- Patrick Shirkey Boost Hardware Ltd

On Thu, September 19, 2013 8:46 pm, Fons Adriaensen wrote: A bit more detail before I send this over to the PA guys for feedback. I am seeing the time period returned by jack_delay regularly increase during the measurement process. Do you have any thoughts on why that would be happening? I would like to rule out jack_delay because this is most likely a bug in PA that I have found. I'm using this method: jack is now set to 64/48000/2 This is the graph: jack_delay -> pa_source -> audacity -> pa_sink -> jack_delay Using audacity with 0 internal latency and in pass through mode I see the following results. It starts out as 10.667ms and after a few seconds it climbs up to 70.667 ms. I see similar results with ecasound instead of audacity using the following graph and ecachain: jack_delay -> pa_source -> ecasound -> pa_sink -> jack_delay ecasound -f:32,2,48000 -b:64 -i alsa -o alsa In that case it starts at 60.000 ms and climbs upto 572.000 ms after a few seconds of running the test. Audacity : ------------------ 512.003 frames 10.667 ms total roundtrip latency extra loopback latency: 512 frames use 256 for the backend arguments -I and -O 512.008 frames 10.667 ms total roundtrip latency extra loopback latency: 512 frames use 256 for the backend arguments -I and -O 512.006 frames 10.667 ms total roundtrip latency extra loopback latency: 512 frames use 256 for the backend arguments -I and -O 1600.006 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.006 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.006 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.334 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.334 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.334 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.334 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.334 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.334 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.334 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.008 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 1600.007 frames 33.333 ms total roundtrip latency extra loopback latency: 1600 frames use 800 for the backend arguments -I and -O 2368.007 frames 49.333 ms total roundtrip latency extra loopback latency: 2368 frames use 1184 for the backend arguments -I and -O 2368.007 frames 49.333 ms total roundtrip latency extra loopback latency: 2368 frames use 1184 for the backend arguments -I and -O 2368.008 frames 49.334 ms total roundtrip latency extra loopback latency: 2368 frames use 1184 for the backend arguments -I and -O 2368.007 frames 49.333 ms total roundtrip latency extra loopback latency: 2368 frames use 1184 for the backend arguments -I and -O 2368.008 frames 49.333 ms total roundtrip latency extra loopback latency: 2368 frames use 1184 for the backend arguments -I and -O 2368.007 frames 49.333 ms total roundtrip latency extra loopback latency: 2368 frames use 1184 for the backend arguments -I and -O 2368.007 frames 49.333 ms total roundtrip latency extra loopback latency: 2368 frames use 1184 for the backend arguments -I and -O 2368.007 frames 49.333 ms total roundtrip latency extra loopback latency: 2368 frames use 1184 for the backend arguments -I and -O 2368.007 frames 49.333 ms total roundtrip latency extra loopback latency: 2368 frames use 1184 for the backend arguments -I and -O 2432.008 frames 50.667 ms total roundtrip latency extra loopback latency: 2432 frames use 1216 for the backend arguments -I and -O 2432.008 frames 50.667 ms total roundtrip latency extra loopback latency: 2432 frames use 1216 for the backend arguments -I and -O 2432.008 frames 50.667 ms total roundtrip latency extra loopback latency: 2432 frames use 1216 for the backend arguments -I and -O 2560.008 frames 53.334 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.008 frames 53.334 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.008 frames 53.334 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.007 frames 53.333 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.009 frames 53.334 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.008 frames 53.334 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.007 frames 53.333 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.008 frames 53.334 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.008 frames 53.333 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.008 frames 53.334 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.008 frames 53.333 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.007 frames 53.333 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.008 frames 53.333 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.007 frames 53.333 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.008 frames 53.333 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.008 frames 53.334 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 2560.007 frames 53.333 ms total roundtrip latency extra loopback latency: 2560 frames use 1280 for the backend arguments -I and -O 3136.008 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.008 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.009 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.009 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.007 frames 65.333 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.007 frames 65.333 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.008 frames 65.333 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.007 frames 65.333 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.008 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.008 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.007 frames 65.333 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.009 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.009 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.009 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.007 frames 65.333 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.008 frames 65.333 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.009 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.008 frames 65.333 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.008 frames 65.333 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.008 frames 65.333 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.008 frames 65.333 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.007 frames 65.333 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.008 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.009 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.009 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.008 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.009 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3136.009 frames 65.334 ms total roundtrip latency extra loopback latency: 3136 frames use 1568 for the backend arguments -I and -O 3392.008 frames 70.667 ms total roundtrip latency extra loopback latency: 3392 frames use 1696 for the backend arguments -I and -O 3392.008 frames 70.667 ms total roundtrip latency extra loopback latency: 3392 frames use 1696 for the backend arguments -I and -O 3392.008 frames 70.667 ms total roundtrip latency extra loopback latency: 3392 frames use 1696 for the backend arguments -I and -O 3392.008 frames 70.667 ms total roundtrip latency extra loopback latency: 3392 frames use 1696 for the backend arguments -I and -O 3392.008 frames 70.667 ms total roundtrip latency extra loopback latency: 3392 frames use 1696 for the backend arguments -I and -O 3392.008 frames 70.667 ms total roundtrip latency extra loopback latency: 3392 frames use 1696 for the backend arguments -I and -O 3392.009 frames 70.667 ms total roundtrip latency extra loopback latency: 3392 frames use 1696 for the backend arguments -I and -O 3392.007 frames 70.667 ms total roundtrip latency extra loopback latency: 3392 frames use 1696 for the backend arguments -I and -O 3392.007 frames 70.667 ms total roundtrip latency extra loopback latency: 3392 frames use 1696 for the backend arguments -I and -O 3392.008 frames 70.667 ms total roundtrip latency extra loopback latency: 3392 frames use 1696 for the backend arguments -I and -O 3392.009 frames 70.667 ms total roundtrip latency extra loopback latency: 3392 frames use 1696 for the backend arguments -I and -O 3392.009 frames 70.667 ms total roundtrip latency extra loopback latency: 3392 frames use 1696 for the backend arguments -I and -O 3392.009 frames 70.667 ms total roundtrip latency extra loopback latency: 3392 frames use 1696 for the backend arguments -I and -O ------------------ Ecasound ecasound -f:32,2,48000 -b:64 -i alsa -o alsa ------------------ 2880.006 frames 60.000 ms total roundtrip latency extra loopback latency: 2880 frames use 1440 for the backend arguments -I and -O 2879.998 frames 60.000 ms total roundtrip latency extra loopback latency: 2879 frames use 1439 for the backend arguments -I and -O 2879.998 frames 60.000 ms total roundtrip latency extra loopback latency: 2879 frames use 1439 for the backend arguments -I and -O 2879.998 frames 60.000 ms total roundtrip latency extra loopback latency: 2879 frames use 1439 for the backend arguments -I and -O 3135.997 frames 65.333 ms total roundtrip latency extra loopback latency: 3135 frames use 1567 for the backend arguments -I and -O ?? 3135.995 frames 65.333 ms total roundtrip latency extra loopback latency: 3135 frames use 1567 for the backend arguments -I and -O 6847.998 frames 142.667 ms total roundtrip latency extra loopback latency: 6847 frames use 3423 for the backend arguments -I and -O 7167.996 frames 149.333 ms total roundtrip latency extra loopback latency: 7167 frames use 3583 for the backend arguments -I and -O 7167.999 frames 149.333 ms total roundtrip latency extra loopback latency: 7167 frames use 3583 for the backend arguments -I and -O 7167.997 frames 149.333 ms total roundtrip latency extra loopback latency: 7167 frames use 3583 for the backend arguments -I and -O 7167.998 frames 149.333 ms total roundtrip latency extra loopback latency: 7167 frames use 3583 for the backend arguments -I and -O 7167.998 frames 149.333 ms total roundtrip latency extra loopback latency: 7167 frames use 3583 for the backend arguments -I and -O 7231.998 frames 150.667 ms total roundtrip latency extra loopback latency: 7231 frames use 3615 for the backend arguments -I and -O 7231.998 frames 150.667 ms total roundtrip latency extra loopback latency: 7231 frames use 3615 for the backend arguments -I and -O 8575.996 frames 178.667 ms total roundtrip latency extra loopback latency: 8575 frames use 4287 for the backend arguments -I and -O 8575.998 frames 178.667 ms total roundtrip latency extra loopback latency: 8575 frames use 4287 for the backend arguments -I and -O 8575.997 frames 178.667 ms total roundtrip latency extra loopback latency: 8575 frames use 4287 for the backend arguments -I and -O 8575.998 frames 178.667 ms total roundtrip latency extra loopback latency: 8575 frames use 4287 for the backend arguments -I and -O 8959.996 frames 186.667 ms total roundtrip latency extra loopback latency: 8959 frames use 4479 for the backend arguments -I and -O ?? 8959.996 frames 186.667 ms total roundtrip latency extra loopback latency: 8959 frames use 4479 for the backend arguments -I and -O 13760.002 frames 286.667 ms total roundtrip latency extra loopback latency: 13760 frames use 6880 for the backend arguments -I and -O 14592.000 frames 304.000 ms total roundtrip latency extra loopback latency: 14592 frames use 7296 for the backend arguments -I and -O 14591.999 frames 304.000 ms total roundtrip latency extra loopback latency: 14591 frames use 7295 for the backend arguments -I and -O 14591.998 frames 304.000 ms total roundtrip latency extra loopback latency: 14591 frames use 7295 for the backend arguments -I and -O 14591.998 frames 304.000 ms total roundtrip latency extra loopback latency: 14591 frames use 7295 for the backend arguments -I and -O 14591.998 frames 304.000 ms total roundtrip latency extra loopback latency: 14591 frames use 7295 for the backend arguments -I and -O 14592.000 frames 304.000 ms total roundtrip latency extra loopback latency: 14591 frames use 7295 for the backend arguments -I and -O 16191.999 frames 337.333 ms total roundtrip latency extra loopback latency: 16191 frames use 8095 for the backend arguments -I and -O 16191.998 frames 337.333 ms total roundtrip latency extra loopback latency: 16191 frames use 8095 for the backend arguments -I and -O 16191.998 frames 337.333 ms total roundtrip latency extra loopback latency: 16191 frames use 8095 for the backend arguments -I and -O 16191.998 frames 337.333 ms total roundtrip latency extra loopback latency: 16191 frames use 8095 for the backend arguments -I and -O 16255.998 frames 338.667 ms total roundtrip latency extra loopback latency: 16255 frames use 8127 for the backend arguments -I and -O 16255.998 frames 338.667 ms total roundtrip latency extra loopback latency: 16255 frames use 8127 for the backend arguments -I and -O 16255.998 frames 338.667 ms total roundtrip latency extra loopback latency: 16255 frames use 8127 for the backend arguments -I and -O 16255.999 frames 338.667 ms total roundtrip latency extra loopback latency: 16255 frames use 8127 for the backend arguments -I and -O 16319.998 frames 340.000 ms total roundtrip latency extra loopback latency: 16319 frames use 8159 for the backend arguments -I and -O 16319.998 frames 340.000 ms total roundtrip latency extra loopback latency: 16319 frames use 8159 for the backend arguments -I and -O 16319.999 frames 340.000 ms total roundtrip latency extra loopback latency: 16319 frames use 8159 for the backend arguments -I and -O 16319.998 frames 340.000 ms total roundtrip latency extra loopback latency: 16319 frames use 8159 for the backend arguments -I and -O 16319.998 frames 340.000 ms total roundtrip latency extra loopback latency: 16319 frames use 8159 for the backend arguments -I and -O 16319.998 frames 340.000 ms total roundtrip latency extra loopback latency: 16319 frames use 8159 for the backend arguments -I and -O 16319.997 frames 340.000 ms total roundtrip latency extra loopback latency: 16319 frames use 8159 for the backend arguments -I and -O 16319.999 frames 340.000 ms total roundtrip latency extra loopback latency: 16319 frames use 8159 for the backend arguments -I and -O 16319.998 frames 340.000 ms total roundtrip latency extra loopback latency: 16319 frames use 8159 for the backend arguments -I and -O 16319.998 frames 340.000 ms total roundtrip latency extra loopback latency: 16319 frames use 8159 for the backend arguments -I and -O 16447.998 frames 342.667 ms total roundtrip latency extra loopback latency: 16447 frames use 8223 for the backend arguments -I and -O 16447.997 frames 342.667 ms total roundtrip latency extra loopback latency: 16447 frames use 8223 for the backend arguments -I and -O 16447.998 frames 342.667 ms total roundtrip latency extra loopback latency: 16447 frames use 8223 for the backend arguments -I and -O 16447.999 frames 342.667 ms total roundtrip latency extra loopback latency: 16447 frames use 8223 for the backend arguments -I and -O 16447.999 frames 342.667 ms total roundtrip latency extra loopback latency: 16447 frames use 8223 for the backend arguments -I and -O 16575.998 frames 345.333 ms total roundtrip latency extra loopback latency: 16575 frames use 8287 for the backend arguments -I and -O 16575.998 frames 345.333 ms total roundtrip latency extra loopback latency: 16575 frames use 8287 for the backend arguments -I and -O 16575.998 frames 345.333 ms total roundtrip latency extra loopback latency: 16575 frames use 8287 for the backend arguments -I and -O 16575.998 frames 345.333 ms total roundtrip latency extra loopback latency: 16575 frames use 8287 for the backend arguments -I and -O 16639.999 frames 346.667 ms total roundtrip latency extra loopback latency: 16639 frames use 8319 for the backend arguments -I and -O 16639.998 frames 346.667 ms total roundtrip latency extra loopback latency: 16639 frames use 8319 for the backend arguments -I and -O 16639.998 frames 346.667 ms total roundtrip latency extra loopback latency: 16639 frames use 8319 for the backend arguments -I and -O 16703.999 frames 348.000 ms total roundtrip latency extra loopback latency: 16703 frames use 8351 for the backend arguments -I and -O 16703.998 frames 348.000 ms total roundtrip latency extra loopback latency: 16703 frames use 8351 for the backend arguments -I and -O 16703.999 frames 348.000 ms total roundtrip latency extra loopback latency: 16703 frames use 8351 for the backend arguments -I and -O 16703.997 frames 348.000 ms total roundtrip latency extra loopback latency: 16703 frames use 8351 for the backend arguments -I and -O 16703.997 frames 348.000 ms total roundtrip latency extra loopback latency: 16703 frames use 8351 for the backend arguments -I and -O 16703.998 frames 348.000 ms total roundtrip latency extra loopback latency: 16703 frames use 8351 for the backend arguments -I and -O 16703.998 frames 348.000 ms total roundtrip latency extra loopback latency: 16703 frames use 8351 for the backend arguments -I and -O 16767.997 frames 349.333 ms total roundtrip latency extra loopback latency: 16767 frames use 8383 for the backend arguments -I and -O 16767.998 frames 349.333 ms total roundtrip latency extra loopback latency: 16767 frames use 8383 for the backend arguments -I and -O 16767.998 frames 349.333 ms total roundtrip latency extra loopback latency: 16767 frames use 8383 for the backend arguments -I and -O 16767.998 frames 349.333 ms total roundtrip latency extra loopback latency: 16767 frames use 8383 for the backend arguments -I and -O 16767.998 frames 349.333 ms total roundtrip latency extra loopback latency: 16767 frames use 8383 for the backend arguments -I and -O 16767.998 frames 349.333 ms total roundtrip latency extra loopback latency: 16767 frames use 8383 for the backend arguments -I and -O 16767.998 frames 349.333 ms total roundtrip latency extra loopback latency: 16767 frames use 8383 for the backend arguments -I and -O 16767.998 frames 349.333 ms total roundtrip latency extra loopback latency: 16767 frames use 8383 for the backend arguments -I and -O 16767.997 frames 349.333 ms total roundtrip latency extra loopback latency: 16767 frames use 8383 for the backend arguments -I and -O 16767.998 frames 349.333 ms total roundtrip latency extra loopback latency: 16767 frames use 8383 for the backend arguments -I and -O 16767.998 frames 349.333 ms total roundtrip latency extra loopback latency: 16767 frames use 8383 for the backend arguments -I and -O 16767.997 frames 349.333 ms total roundtrip latency extra loopback latency: 16767 frames use 8383 for the backend arguments -I and -O 16895.997 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.998 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.997 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.997 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.998 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.998 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.998 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.997 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.998 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.998 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.998 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.998 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.998 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.998 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.999 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.999 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.998 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16895.997 frames 352.000 ms total roundtrip latency extra loopback latency: 16895 frames use 8447 for the backend arguments -I and -O 16959.998 frames 353.333 ms total roundtrip latency extra loopback latency: 16959 frames use 8479 for the backend arguments -I and -O 16959.997 frames 353.333 ms total roundtrip latency extra loopback latency: 16959 frames use 8479 for the backend arguments -I and -O 16959.998 frames 353.333 ms total roundtrip latency extra loopback latency: 16959 frames use 8479 for the backend arguments -I and -O 16959.998 frames 353.333 ms total roundtrip latency extra loopback latency: 16959 frames use 8479 for the backend arguments -I and -O 16959.997 frames 353.333 ms total roundtrip latency extra loopback latency: 16959 frames use 8479 for the backend arguments -I and -O 16959.998 frames 353.333 ms total roundtrip latency extra loopback latency: 16959 frames use 8479 for the backend arguments -I and -O 16959.999 frames 353.333 ms total roundtrip latency extra loopback latency: 16959 frames use 8479 for the backend arguments -I and -O 16959.999 frames 353.333 ms total roundtrip latency extra loopback latency: 16959 frames use 8479 for the backend arguments -I and -O 16959.998 frames 353.333 ms total roundtrip latency extra loopback latency: 16959 frames use 8479 for the backend arguments -I and -O 16959.997 frames 353.333 ms total roundtrip latency extra loopback latency: 16959 frames use 8479 for the backend arguments -I and -O 16959.997 frames 353.333 ms total roundtrip latency extra loopback latency: 16959 frames use 8479 for the backend arguments -I and -O 17087.998 frames 356.000 ms total roundtrip latency extra loopback latency: 17087 frames use 8543 for the backend arguments -I and -O 17087.998 frames 356.000 ms total roundtrip latency extra loopback latency: 17087 frames use 8543 for the backend arguments -I and -O 17087.997 frames 356.000 ms total roundtrip latency extra loopback latency: 17087 frames use 8543 for the backend arguments -I and -O 17087.997 frames 356.000 ms total roundtrip latency extra loopback latency: 17087 frames use 8543 for the backend arguments -I and -O 17087.997 frames 356.000 ms total roundtrip latency extra loopback latency: 17087 frames use 8543 for the backend arguments -I and -O 17087.998 frames 356.000 ms total roundtrip latency extra loopback latency: 17087 frames use 8543 for the backend arguments -I and -O 17087.998 frames 356.000 ms total roundtrip latency extra loopback latency: 17087 frames use 8543 for the backend arguments -I and -O 17151.999 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.997 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.997 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.997 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.998 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.998 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.998 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.999 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.999 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.999 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.999 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.999 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.999 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.999 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.999 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.998 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.998 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.998 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.998 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.997 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.998 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.999 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17151.998 frames 357.333 ms total roundtrip latency extra loopback latency: 17151 frames use 8575 for the backend arguments -I and -O 17215.999 frames 358.667 ms total roundtrip latency extra loopback latency: 17215 frames use 8607 for the backend arguments -I and -O 17215.999 frames 358.667 ms total roundtrip latency extra loopback latency: 17215 frames use 8607 for the backend arguments -I and -O 17215.998 frames 358.667 ms total roundtrip latency extra loopback latency: 17215 frames use 8607 for the backend arguments -I and -O 17215.998 frames 358.667 ms total roundtrip latency extra loopback latency: 17215 frames use 8607 for the backend arguments -I and -O 17215.997 frames 358.667 ms total roundtrip latency extra loopback latency: 17215 frames use 8607 for the backend arguments -I and -O 17215.997 frames 358.667 ms total roundtrip latency extra loopback latency: 17215 frames use 8607 for the backend arguments -I and -O 17215.998 frames 358.667 ms total roundtrip latency extra loopback latency: 17215 frames use 8607 for the backend arguments -I and -O 17215.998 frames 358.667 ms total roundtrip latency extra loopback latency: 17215 frames use 8607 for the backend arguments -I and -O 17343.998 frames 361.333 ms total roundtrip latency extra loopback latency: 17343 frames use 8671 for the backend arguments -I and -O 17343.998 frames 361.333 ms total roundtrip latency extra loopback latency: 17343 frames use 8671 for the backend arguments -I and -O 17407.998 frames 362.667 ms total roundtrip latency extra loopback latency: 17407 frames use 8703 for the backend arguments -I and -O 17407.998 frames 362.667 ms total roundtrip latency extra loopback latency: 17407 frames use 8703 for the backend arguments -I and -O 17471.999 frames 364.000 ms total roundtrip latency extra loopback latency: 17471 frames use 8735 for the backend arguments -I and -O 17471.997 frames 364.000 ms total roundtrip latency extra loopback latency: 17471 frames use 8735 for the backend arguments -I and -O 17471.998 frames 364.000 ms total roundtrip latency extra loopback latency: 17471 frames use 8735 for the backend arguments -I and -O 17471.998 frames 364.000 ms total roundtrip latency extra loopback latency: 17471 frames use 8735 for the backend arguments -I and -O 17471.998 frames 364.000 ms total roundtrip latency extra loopback latency: 17471 frames use 8735 for the backend arguments -I and -O 17471.998 frames 364.000 ms total roundtrip latency extra loopback latency: 17471 frames use 8735 for the backend arguments -I and -O 17471.997 frames 364.000 ms total roundtrip latency extra loopback latency: 17471 frames use 8735 for the backend arguments -I and -O 17471.998 frames 364.000 ms total roundtrip latency extra loopback latency: 17471 frames use 8735 for the backend arguments -I and -O 17471.999 frames 364.000 ms total roundtrip latency extra loopback latency: 17471 frames use 8735 for the backend arguments -I and -O 17599.998 frames 366.667 ms total roundtrip latency extra loopback latency: 17599 frames use 8799 for the backend arguments -I and -O 17663.998 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.997 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.997 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.998 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.998 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.998 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.998 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.997 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.998 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.998 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.999 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.999 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.998 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.998 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.999 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.998 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.997 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.998 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17663.998 frames 368.000 ms total roundtrip latency extra loopback latency: 17663 frames use 8831 for the backend arguments -I and -O 17791.999 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.999 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.999 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.997 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.997 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.997 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.997 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.997 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.997 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.998 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17791.999 frames 370.667 ms total roundtrip latency extra loopback latency: 17791 frames use 8895 for the backend arguments -I and -O 17855.998 frames 372.000 ms total roundtrip latency extra loopback latency: 17855 frames use 8927 for the backend arguments -I and -O 17855.998 frames 372.000 ms total roundtrip latency extra loopback latency: 17855 frames use 8927 for the backend arguments -I and -O 17855.999 frames 372.000 ms total roundtrip latency extra loopback latency: 17855 frames use 8927 for the backend arguments -I and -O 17855.999 frames 372.000 ms total roundtrip latency extra loopback latency: 17855 frames use 8927 for the backend arguments -I and -O 17855.999 frames 372.000 ms total roundtrip latency extra loopback latency: 17855 frames use 8927 for the backend arguments -I and -O 17855.999 frames 372.000 ms total roundtrip latency extra loopback latency: 17855 frames use 8927 for the backend arguments -I and -O 17856.000 frames 372.000 ms total roundtrip latency extra loopback latency: 17855 frames use 8927 for the backend arguments -I and -O 17856.001 frames 372.000 ms total roundtrip latency extra loopback latency: 17856 frames use 8928 for the backend arguments -I and -O 17856.001 frames 372.000 ms total roundtrip latency extra loopback latency: 17856 frames use 8928 for the backend arguments -I and -O 17856.001 frames 372.000 ms total roundtrip latency extra loopback latency: 17856 frames use 8928 for the backend arguments -I and -O 17984.003 frames 374.667 ms total roundtrip latency extra loopback latency: 17984 frames use 8992 for the backend arguments -I and -O 18112.005 frames 377.333 ms total roundtrip latency extra loopback latency: 18112 frames use 9056 for the backend arguments -I and -O 18112.003 frames 377.333 ms total roundtrip latency extra loopback latency: 18112 frames use 9056 for the backend arguments -I and -O 18112.001 frames 377.333 ms total roundtrip latency extra loopback latency: 18112 frames use 9056 for the backend arguments -I and -O 18176.003 frames 378.667 ms total roundtrip latency extra loopback latency: 18176 frames use 9088 for the backend arguments -I and -O 18176.006 frames 378.667 ms total roundtrip latency extra loopback latency: 18176 frames use 9088 for the backend arguments -I and -O 18176.005 frames 378.667 ms total roundtrip latency extra loopback latency: 18176 frames use 9088 for the backend arguments -I and -O 18176.005 frames 378.667 ms total roundtrip latency extra loopback latency: 18176 frames use 9088 for the backend arguments -I and -O 18176.006 frames 378.667 ms total roundtrip latency extra loopback latency: 18176 frames use 9088 for the backend arguments -I and -O 18176.007 frames 378.667 ms total roundtrip latency extra loopback latency: 18176 frames use 9088 for the backend arguments -I and -O 18176.003 frames 378.667 ms total roundtrip latency extra loopback latency: 18176 frames use 9088 for the backend arguments -I and -O 18175.999 frames 378.667 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.993 frames 378.667 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.991 frames 378.666 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.992 frames 378.667 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.992 frames 378.667 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.990 frames 378.666 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.988 frames 378.666 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.987 frames 378.666 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.985 frames 378.666 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.987 frames 378.666 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.987 frames 378.666 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.988 frames 378.666 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.988 frames 378.666 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.988 frames 378.666 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.988 frames 378.666 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18175.987 frames 378.666 ms total roundtrip latency extra loopback latency: 18175 frames use 9087 for the backend arguments -I and -O 18239.989 frames 380.000 ms total roundtrip latency extra loopback latency: 18239 frames use 9119 for the backend arguments -I and -O 18239.989 frames 380.000 ms total roundtrip latency extra loopback latency: 18239 frames use 9119 for the backend arguments -I and -O 18303.987 frames 381.333 ms total roundtrip latency extra loopback latency: 18303 frames use 9151 for the backend arguments -I and -O 18303.989 frames 381.333 ms total roundtrip latency extra loopback latency: 18303 frames use 9151 for the backend arguments -I and -O 18303.988 frames 381.333 ms total roundtrip latency extra loopback latency: 18303 frames use 9151 for the backend arguments -I and -O 18303.987 frames 381.333 ms total roundtrip latency extra loopback latency: 18303 frames use 9151 for the backend arguments -I and -O 18303.987 frames 381.333 ms total roundtrip latency extra loopback latency: 18303 frames use 9151 for the backend arguments -I and -O 18303.988 frames 381.333 ms total roundtrip latency extra loopback latency: 18303 frames use 9151 for the backend arguments -I and -O 18303.989 frames 381.333 ms total roundtrip latency extra loopback latency: 18303 frames use 9151 for the backend arguments -I and -O 18303.988 frames 381.333 ms total roundtrip latency extra loopback latency: 18303 frames use 9151 for the backend arguments -I and -O 18303.990 frames 381.333 ms total roundtrip latency extra loopback latency: 18303 frames use 9151 for the backend arguments -I and -O 18303.989 frames 381.333 ms total roundtrip latency extra loopback latency: 18303 frames use 9151 for the backend arguments -I and -O 18303.989 frames 381.333 ms total roundtrip latency extra loopback latency: 18303 frames use 9151 for the backend arguments -I and -O 18303.989 frames 381.333 ms total roundtrip latency extra loopback latency: 18303 frames use 9151 for the backend arguments -I and -O 18431.989 frames 384.000 ms total roundtrip latency extra loopback latency: 18431 frames use 9215 for the backend arguments -I and -O 18431.987 frames 384.000 ms total roundtrip latency extra loopback latency: 18431 frames use 9215 for the backend arguments -I and -O 18431.989 frames 384.000 ms total roundtrip latency extra loopback latency: 18431 frames use 9215 for the backend arguments -I and -O 18431.987 frames 384.000 ms total roundtrip latency extra loopback latency: 18431 frames use 9215 for the backend arguments -I and -O 18431.987 frames 384.000 ms total roundtrip latency extra loopback latency: 18431 frames use 9215 for the backend arguments -I and -O 18431.987 frames 384.000 ms total roundtrip latency extra loopback latency: 18431 frames use 9215 for the backend arguments -I and -O 18431.988 frames 384.000 ms total roundtrip latency extra loopback latency: 18431 frames use 9215 for the backend arguments -I and -O 18431.988 frames 384.000 ms total roundtrip latency extra loopback latency: 18431 frames use 9215 for the backend arguments -I and -O 18431.988 frames 384.000 ms total roundtrip latency extra loopback latency: 18431 frames use 9215 for the backend arguments -I and -O 18431.988 frames 384.000 ms total roundtrip latency extra loopback latency: 18431 frames use 9215 for the backend arguments -I and -O 18431.988 frames 384.000 ms total roundtrip latency extra loopback latency: 18431 frames use 9215 for the backend arguments -I and -O 18815.988 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O ?? 18815.989 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18815.988 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18815.987 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18815.988 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18815.988 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18815.990 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18815.990 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18815.990 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18815.992 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18815.992 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18815.990 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18815.987 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18815.986 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18815.988 frames 392.000 ms total roundtrip latency extra loopback latency: 18815 frames use 9407 for the backend arguments -I and -O 18943.988 frames 394.666 ms total roundtrip latency extra loopback latency: 18943 frames use 9471 for the backend arguments -I and -O 18943.989 frames 394.666 ms total roundtrip latency extra loopback latency: 18943 frames use 9471 for the backend arguments -I and -O 18943.988 frames 394.666 ms total roundtrip latency extra loopback latency: 18943 frames use 9471 for the backend arguments -I and -O 18943.985 frames 394.666 ms total roundtrip latency extra loopback latency: 18943 frames use 9471 for the backend arguments -I and -O 18943.989 frames 394.666 ms total roundtrip latency extra loopback latency: 18943 frames use 9471 for the backend arguments -I and -O 18943.988 frames 394.666 ms total roundtrip latency extra loopback latency: 18943 frames use 9471 for the backend arguments -I and -O 19007.987 frames 396.000 ms total roundtrip latency extra loopback latency: 19007 frames use 9503 for the backend arguments -I and -O 19007.988 frames 396.000 ms total roundtrip latency extra loopback latency: 19007 frames use 9503 for the backend arguments -I and -O 19007.989 frames 396.000 ms total roundtrip latency extra loopback latency: 19007 frames use 9503 for the backend arguments -I and -O 19007.989 frames 396.000 ms total roundtrip latency extra loopback latency: 19007 frames use 9503 for the backend arguments -I and -O 19007.993 frames 396.000 ms total roundtrip latency extra loopback latency: 19007 frames use 9503 for the backend arguments -I and -O 19007.989 frames 396.000 ms total roundtrip latency extra loopback latency: 19007 frames use 9503 for the backend arguments -I and -O 19071.986 frames 397.333 ms total roundtrip latency extra loopback latency: 19071 frames use 9535 for the backend arguments -I and -O 19071.988 frames 397.333 ms total roundtrip latency extra loopback latency: 19071 frames use 9535 for the backend arguments -I and -O 19199.985 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.988 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.987 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.987 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.987 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.988 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.988 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.988 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.987 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.988 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.987 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.987 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.985 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.984 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19199.987 frames 400.000 ms total roundtrip latency extra loopback latency: 19199 frames use 9599 for the backend arguments -I and -O 19519.986 frames 406.666 ms total roundtrip latency extra loopback latency: 19519 frames use 9759 for the backend arguments -I and -O 19519.988 frames 406.666 ms total roundtrip latency extra loopback latency: 19519 frames use 9759 for the backend arguments -I and -O 19519.988 frames 406.666 ms total roundtrip latency extra loopback latency: 19519 frames use 9759 for the backend arguments -I and -O 19519.990 frames 406.666 ms total roundtrip latency extra loopback latency: 19519 frames use 9759 for the backend arguments -I and -O 19519.991 frames 406.666 ms total roundtrip latency extra loopback latency: 19519 frames use 9759 for the backend arguments -I and -O 19839.989 frames 413.333 ms total roundtrip latency extra loopback latency: 19839 frames use 9919 for the backend arguments -I and -O 19839.987 frames 413.333 ms total roundtrip latency extra loopback latency: 19839 frames use 9919 for the backend arguments -I and -O 21823.985 frames 454.666 ms total roundtrip latency extra loopback latency: 21823 frames use 10911 for the backend arguments -I and -O 22655.986 frames 472.000 ms total roundtrip latency extra loopback latency: 22655 frames use 11327 for the backend arguments -I and -O 22655.984 frames 472.000 ms total roundtrip latency extra loopback latency: 22655 frames use 11327 for the backend arguments -I and -O 22655.987 frames 472.000 ms total roundtrip latency extra loopback latency: 22655 frames use 11327 for the backend arguments -I and -O 22655.987 frames 472.000 ms total roundtrip latency extra loopback latency: 22655 frames use 11327 for the backend arguments -I and -O 22655.987 frames 472.000 ms total roundtrip latency extra loopback latency: 22655 frames use 11327 for the backend arguments -I and -O 22655.987 frames 472.000 ms total roundtrip latency extra loopback latency: 22655 frames use 11327 for the backend arguments -I and -O 22655.989 frames 472.000 ms total roundtrip latency extra loopback latency: 22655 frames use 11327 for the backend arguments -I and -O 22655.988 frames 472.000 ms total roundtrip latency extra loopback latency: 22655 frames use 11327 for the backend arguments -I and -O 22655.991 frames 472.000 ms total roundtrip latency extra loopback latency: 22655 frames use 11327 for the backend arguments -I and -O 22719.989 frames 473.333 ms total roundtrip latency extra loopback latency: 22719 frames use 11359 for the backend arguments -I and -O 22783.988 frames 474.666 ms total roundtrip latency extra loopback latency: 22783 frames use 11391 for the backend arguments -I and -O 22783.987 frames 474.666 ms total roundtrip latency extra loopback latency: 22783 frames use 11391 for the backend arguments -I and -O 22783.987 frames 474.666 ms total roundtrip latency extra loopback latency: 22783 frames use 11391 for the backend arguments -I and -O 23039.987 frames 480.000 ms total roundtrip latency extra loopback latency: 23039 frames use 11519 for the backend arguments -I and -O 23039.987 frames 480.000 ms total roundtrip latency extra loopback latency: 23039 frames use 11519 for the backend arguments -I and -O 23039.987 frames 480.000 ms total roundtrip latency extra loopback latency: 23039 frames use 11519 for the backend arguments -I and -O 23103.988 frames 481.333 ms total roundtrip latency extra loopback latency: 23103 frames use 11551 for the backend arguments -I and -O 23103.989 frames 481.333 ms total roundtrip latency extra loopback latency: 23103 frames use 11551 for the backend arguments -I and -O 23103.989 frames 481.333 ms total roundtrip latency extra loopback latency: 23103 frames use 11551 for the backend arguments -I and -O 23231.988 frames 484.000 ms total roundtrip latency extra loopback latency: 23231 frames use 11615 for the backend arguments -I and -O 23231.987 frames 484.000 ms total roundtrip latency extra loopback latency: 23231 frames use 11615 for the backend arguments -I and -O 23231.987 frames 484.000 ms total roundtrip latency extra loopback latency: 23231 frames use 11615 for the backend arguments -I and -O 23359.986 frames 486.666 ms total roundtrip latency extra loopback latency: 23359 frames use 11679 for the backend arguments -I and -O 23423.986 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.986 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.986 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.986 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.989 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.987 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.986 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.986 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.986 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.986 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.987 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.987 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.987 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.987 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.986 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.987 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23423.988 frames 488.000 ms total roundtrip latency extra loopback latency: 23423 frames use 11711 for the backend arguments -I and -O 23487.988 frames 489.333 ms total roundtrip latency extra loopback latency: 23487 frames use 11743 for the backend arguments -I and -O 23487.989 frames 489.333 ms total roundtrip latency extra loopback latency: 23487 frames use 11743 for the backend arguments -I and -O 23487.988 frames 489.333 ms total roundtrip latency extra loopback latency: 23487 frames use 11743 for the backend arguments -I and -O 23487.988 frames 489.333 ms total roundtrip latency extra loopback latency: 23487 frames use 11743 for the backend arguments -I and -O 23615.987 frames 492.000 ms total roundtrip latency extra loopback latency: 23615 frames use 11807 for the backend arguments -I and -O 23615.987 frames 492.000 ms total roundtrip latency extra loopback latency: 23615 frames use 11807 for the backend arguments -I and -O 23615.986 frames 492.000 ms total roundtrip latency extra loopback latency: 23615 frames use 11807 for the backend arguments -I and -O 23679.986 frames 493.333 ms total roundtrip latency extra loopback latency: 23679 frames use 11839 for the backend arguments -I and -O 23679.987 frames 493.333 ms total roundtrip latency extra loopback latency: 23679 frames use 11839 for the backend arguments -I and -O 23743.987 frames 494.666 ms total roundtrip latency extra loopback latency: 23743 frames use 11871 for the backend arguments -I and -O 23743.987 frames 494.666 ms total roundtrip latency extra loopback latency: 23743 frames use 11871 for the backend arguments -I and -O 23743.988 frames 494.666 ms total roundtrip latency extra loopback latency: 23743 frames use 11871 for the backend arguments -I and -O 23743.988 frames 494.666 ms total roundtrip latency extra loopback latency: 23743 frames use 11871 for the backend arguments -I and -O 23871.991 frames 497.333 ms total roundtrip latency extra loopback latency: 23871 frames use 11935 for the backend arguments -I and -O 23935.987 frames 498.666 ms total roundtrip latency extra loopback latency: 23935 frames use 11967 for the backend arguments -I and -O 23935.987 frames 498.666 ms total roundtrip latency extra loopback latency: 23935 frames use 11967 for the backend arguments -I and -O 23935.987 frames 498.666 ms total roundtrip latency extra loopback latency: 23935 frames use 11967 for the backend arguments -I and -O 23935.987 frames 498.666 ms total roundtrip latency extra loopback latency: 23935 frames use 11967 for the backend arguments -I and -O 23935.987 frames 498.666 ms total roundtrip latency extra loopback latency: 23935 frames use 11967 for the backend arguments -I and -O 23935.987 frames 498.666 ms total roundtrip latency extra loopback latency: 23935 frames use 11967 for the backend arguments -I and -O 23935.987 frames 498.666 ms total roundtrip latency extra loopback latency: 23935 frames use 11967 for the backend arguments -I and -O 23935.987 frames 498.666 ms total roundtrip latency extra loopback latency: 23935 frames use 11967 for the backend arguments -I and -O 23935.988 frames 498.666 ms total roundtrip latency extra loopback latency: 23935 frames use 11967 for the backend arguments -I and -O 23935.987 frames 498.666 ms total roundtrip latency extra loopback latency: 23935 frames use 11967 for the backend arguments -I and -O 24255.988 frames 505.333 ms total roundtrip latency extra loopback latency: 24255 frames use 12127 for the backend arguments -I and -O 24255.987 frames 505.333 ms total roundtrip latency extra loopback latency: 24255 frames use 12127 for the backend arguments -I and -O 24255.987 frames 505.333 ms total roundtrip latency extra loopback latency: 24255 frames use 12127 for the backend arguments -I and -O 24255.987 frames 505.333 ms total roundtrip latency extra loopback latency: 24255 frames use 12127 for the backend arguments -I and -O 24319.987 frames 506.666 ms total roundtrip latency extra loopback latency: 24319 frames use 12159 for the backend arguments -I and -O 24319.987 frames 506.666 ms total roundtrip latency extra loopback latency: 24319 frames use 12159 for the backend arguments -I and -O 24319.987 frames 506.666 ms total roundtrip latency extra loopback latency: 24319 frames use 12159 for the backend arguments -I and -O 24383.988 frames 508.000 ms total roundtrip latency extra loopback latency: 24383 frames use 12191 for the backend arguments -I and -O 24383.989 frames 508.000 ms total roundtrip latency extra loopback latency: 24383 frames use 12191 for the backend arguments -I and -O 24447.990 frames 509.333 ms total roundtrip latency extra loopback latency: 24447 frames use 12223 for the backend arguments -I and -O 24447.989 frames 509.333 ms total roundtrip latency extra loopback latency: 24447 frames use 12223 for the backend arguments -I and -O 24447.988 frames 509.333 ms total roundtrip latency extra loopback latency: 24447 frames use 12223 for the backend arguments -I and -O 24447.988 frames 509.333 ms total roundtrip latency extra loopback latency: 24447 frames use 12223 for the backend arguments -I and -O 24447.988 frames 509.333 ms total roundtrip latency extra loopback latency: 24447 frames use 12223 for the backend arguments -I and -O 24447.988 frames 509.333 ms total roundtrip latency extra loopback latency: 24447 frames use 12223 for the backend arguments -I and -O 24447.987 frames 509.333 ms total roundtrip latency extra loopback latency: 24447 frames use 12223 for the backend arguments -I and -O 24447.985 frames 509.333 ms total roundtrip latency extra loopback latency: 24447 frames use 12223 for the backend arguments -I and -O 24447.987 frames 509.333 ms total roundtrip latency extra loopback latency: 24447 frames use 12223 for the backend arguments -I and -O 24447.988 frames 509.333 ms total roundtrip latency extra loopback latency: 24447 frames use 12223 for the backend arguments -I and -O 24447.988 frames 509.333 ms total roundtrip latency extra loopback latency: 24447 frames use 12223 for the backend arguments -I and -O 24639.989 frames 513.333 ms total roundtrip latency extra loopback latency: 24639 frames use 12319 for the backend arguments -I and -O 24639.988 frames 513.333 ms total roundtrip latency extra loopback latency: 24639 frames use 12319 for the backend arguments -I and -O 24639.989 frames 513.333 ms total roundtrip latency extra loopback latency: 24639 frames use 12319 for the backend arguments -I and -O 24639.988 frames 513.333 ms total roundtrip latency extra loopback latency: 24639 frames use 12319 for the backend arguments -I and -O 24639.987 frames 513.333 ms total roundtrip latency extra loopback latency: 24639 frames use 12319 for the backend arguments -I and -O 24639.987 frames 513.333 ms total roundtrip latency extra loopback latency: 24639 frames use 12319 for the backend arguments -I and -O 24639.987 frames 513.333 ms total roundtrip latency extra loopback latency: 24639 frames use 12319 for the backend arguments -I and -O 24639.988 frames 513.333 ms total roundtrip latency extra loopback latency: 24639 frames use 12319 for the backend arguments -I and -O 24639.987 frames 513.333 ms total roundtrip latency extra loopback latency: 24639 frames use 12319 for the backend arguments -I and -O 24831.990 frames 517.333 ms total roundtrip latency extra loopback latency: 24831 frames use 12415 for the backend arguments -I and -O 24831.988 frames 517.333 ms total roundtrip latency extra loopback latency: 24831 frames use 12415 for the backend arguments -I and -O 24831.988 frames 517.333 ms total roundtrip latency extra loopback latency: 24831 frames use 12415 for the backend arguments -I and -O 24959.989 frames 520.000 ms total roundtrip latency extra loopback latency: 24959 frames use 12479 for the backend arguments -I and -O 24959.988 frames 520.000 ms total roundtrip latency extra loopback latency: 24959 frames use 12479 for the backend arguments -I and -O 24959.988 frames 520.000 ms total roundtrip latency extra loopback latency: 24959 frames use 12479 for the backend arguments -I and -O 24959.988 frames 520.000 ms total roundtrip latency extra loopback latency: 24959 frames use 12479 for the backend arguments -I and -O 24959.988 frames 520.000 ms total roundtrip latency extra loopback latency: 24959 frames use 12479 for the backend arguments -I and -O 24959.988 frames 520.000 ms total roundtrip latency extra loopback latency: 24959 frames use 12479 for the backend arguments -I and -O 24959.987 frames 520.000 ms total roundtrip latency extra loopback latency: 24959 frames use 12479 for the backend arguments -I and -O 24959.987 frames 520.000 ms total roundtrip latency extra loopback latency: 24959 frames use 12479 for the backend arguments -I and -O 25151.987 frames 524.000 ms total roundtrip latency extra loopback latency: 25151 frames use 12575 for the backend arguments -I and -O 25151.988 frames 524.000 ms total roundtrip latency extra loopback latency: 25151 frames use 12575 for the backend arguments -I and -O 25151.990 frames 524.000 ms total roundtrip latency extra loopback latency: 25151 frames use 12575 for the backend arguments -I and -O 25151.990 frames 524.000 ms total roundtrip latency extra loopback latency: 25151 frames use 12575 for the backend arguments -I and -O 25151.990 frames 524.000 ms total roundtrip latency extra loopback latency: 25151 frames use 12575 for the backend arguments -I and -O 25151.988 frames 524.000 ms total roundtrip latency extra loopback latency: 25151 frames use 12575 for the backend arguments -I and -O 25151.989 frames 524.000 ms total roundtrip latency extra loopback latency: 25151 frames use 12575 for the backend arguments -I and -O 25343.988 frames 528.000 ms total roundtrip latency extra loopback latency: 25343 frames use 12671 for the backend arguments -I and -O 25343.988 frames 528.000 ms total roundtrip latency extra loopback latency: 25343 frames use 12671 for the backend arguments -I and -O 25343.988 frames 528.000 ms total roundtrip latency extra loopback latency: 25343 frames use 12671 for the backend arguments -I and -O 25343.988 frames 528.000 ms total roundtrip latency extra loopback latency: 25343 frames use 12671 for the backend arguments -I and -O 25343.988 frames 528.000 ms total roundtrip latency extra loopback latency: 25343 frames use 12671 for the backend arguments -I and -O 25343.988 frames 528.000 ms total roundtrip latency extra loopback latency: 25343 frames use 12671 for the backend arguments -I and -O 25343.989 frames 528.000 ms total roundtrip latency extra loopback latency: 25343 frames use 12671 for the backend arguments -I and -O 25343.989 frames 528.000 ms total roundtrip latency extra loopback latency: 25343 frames use 12671 for the backend arguments -I and -O 25343.989 frames 528.000 ms total roundtrip latency extra loopback latency: 25343 frames use 12671 for the backend arguments -I and -O 25343.991 frames 528.000 ms total roundtrip latency extra loopback latency: 25343 frames use 12671 for the backend arguments -I and -O 25343.994 frames 528.000 ms total roundtrip latency extra loopback latency: 25343 frames use 12671 for the backend arguments -I and -O 25343.997 frames 528.000 ms total roundtrip latency extra loopback latency: 25343 frames use 12671 for the backend arguments -I and -O 25343.997 frames 528.000 ms total roundtrip latency extra loopback latency: 25343 frames use 12671 for the backend arguments -I and -O 25471.996 frames 530.667 ms total roundtrip latency extra loopback latency: 25471 frames use 12735 for the backend arguments -I and -O 25471.995 frames 530.667 ms total roundtrip latency extra loopback latency: 25471 frames use 12735 for the backend arguments -I and -O 25471.993 frames 530.667 ms total roundtrip latency extra loopback latency: 25471 frames use 12735 for the backend arguments -I and -O 25471.993 frames 530.667 ms total roundtrip latency extra loopback latency: 25471 frames use 12735 for the backend arguments -I and -O 25471.993 frames 530.667 ms total roundtrip latency extra loopback latency: 25471 frames use 12735 for the backend arguments -I and -O 25535.993 frames 532.000 ms total roundtrip latency extra loopback latency: 25535 frames use 12767 for the backend arguments -I and -O 25535.994 frames 532.000 ms total roundtrip latency extra loopback latency: 25535 frames use 12767 for the backend arguments -I and -O 25535.995 frames 532.000 ms total roundtrip latency extra loopback latency: 25535 frames use 12767 for the backend arguments -I and -O 25535.994 frames 532.000 ms total roundtrip latency extra loopback latency: 25535 frames use 12767 for the backend arguments -I and -O 25535.993 frames 532.000 ms total roundtrip latency extra loopback latency: 25535 frames use 12767 for the backend arguments -I and -O 25535.992 frames 532.000 ms total roundtrip latency extra loopback latency: 25535 frames use 12767 for the backend arguments -I and -O 25535.992 frames 532.000 ms total roundtrip latency extra loopback latency: 25535 frames use 12767 for the backend arguments -I and -O 25535.993 frames 532.000 ms total roundtrip latency extra loopback latency: 25535 frames use 12767 for the backend arguments -I and -O 25535.993 frames 532.000 ms total roundtrip latency extra loopback latency: 25535 frames use 12767 for the backend arguments -I and -O 25535.993 frames 532.000 ms total roundtrip latency extra loopback latency: 25535 frames use 12767 for the backend arguments -I and -O 25535.993 frames 532.000 ms total roundtrip latency extra loopback latency: 25535 frames use 12767 for the backend arguments -I and -O 25727.994 frames 536.000 ms total roundtrip latency extra loopback latency: 25727 frames use 12863 for the backend arguments -I and -O 25727.994 frames 536.000 ms total roundtrip latency extra loopback latency: 25727 frames use 12863 for the backend arguments -I and -O 25727.991 frames 536.000 ms total roundtrip latency extra loopback latency: 25727 frames use 12863 for the backend arguments -I and -O 25727.993 frames 536.000 ms total roundtrip latency extra loopback latency: 25727 frames use 12863 for the backend arguments -I and -O 26175.993 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26175.994 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26175.994 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26175.994 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26175.993 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26175.993 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26175.993 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26175.991 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26175.991 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26175.991 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26175.991 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26175.991 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26175.992 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26175.992 frames 545.333 ms total roundtrip latency extra loopback latency: 26175 frames use 13087 for the backend arguments -I and -O 26239.993 frames 546.667 ms total roundtrip latency extra loopback latency: 26239 frames use 13119 for the backend arguments -I and -O 26239.993 frames 546.667 ms total roundtrip latency extra loopback latency: 26239 frames use 13119 for the backend arguments -I and -O 26303.993 frames 548.000 ms total roundtrip latency extra loopback latency: 26303 frames use 13151 for the backend arguments -I and -O 26303.992 frames 548.000 ms total roundtrip latency extra loopback latency: 26303 frames use 13151 for the backend arguments -I and -O 26303.992 frames 548.000 ms total roundtrip latency extra loopback latency: 26303 frames use 13151 for the backend arguments -I and -O 26431.992 frames 550.667 ms total roundtrip latency extra loopback latency: 26431 frames use 13215 for the backend arguments -I and -O 26431.990 frames 550.666 ms total roundtrip latency extra loopback latency: 26431 frames use 13215 for the backend arguments -I and -O 26431.992 frames 550.667 ms total roundtrip latency extra loopback latency: 26431 frames use 13215 for the backend arguments -I and -O 26431.992 frames 550.667 ms total roundtrip latency extra loopback latency: 26431 frames use 13215 for the backend arguments -I and -O 26431.992 frames 550.667 ms total roundtrip latency extra loopback latency: 26431 frames use 13215 for the backend arguments -I and -O 26431.992 frames 550.667 ms total roundtrip latency extra loopback latency: 26431 frames use 13215 for the backend arguments -I and -O 26431.992 frames 550.667 ms total roundtrip latency extra loopback latency: 26431 frames use 13215 for the backend arguments -I and -O 26431.992 frames 550.667 ms total roundtrip latency extra loopback latency: 26431 frames use 13215 for the backend arguments -I and -O 26623.993 frames 554.667 ms total roundtrip latency extra loopback latency: 26623 frames use 13311 for the backend arguments -I and -O 26623.993 frames 554.667 ms total roundtrip latency extra loopback latency: 26623 frames use 13311 for the backend arguments -I and -O 26623.993 frames 554.667 ms total roundtrip latency extra loopback latency: 26623 frames use 13311 for the backend arguments -I and -O 26623.990 frames 554.666 ms total roundtrip latency extra loopback latency: 26623 frames use 13311 for the backend arguments -I and -O 26623.991 frames 554.666 ms total roundtrip latency extra loopback latency: 26623 frames use 13311 for the backend arguments -I and -O 26623.992 frames 554.667 ms total roundtrip latency extra loopback latency: 26623 frames use 13311 for the backend arguments -I and -O 26623.992 frames 554.667 ms total roundtrip latency extra loopback latency: 26623 frames use 13311 for the backend arguments -I and -O 26623.991 frames 554.666 ms total roundtrip latency extra loopback latency: 26623 frames use 13311 for the backend arguments -I and -O 27455.991 frames 572.000 ms total roundtrip latency extra loopback latency: 27455 frames use 13727 for the backend arguments -I and -O 27455.991 frames 572.000 ms total roundtrip latency extra loopback latency: 27455 frames use 13727 for the backend arguments -I and -O ------------------ -- Patrick Shirkey Boost Hardware Ltd

On Thu, September 19, 2013 10:31 pm, Fons Adriaensen wrote: Fons on da Remix!!! -- Patrick Shirkey Boost Hardware Ltd

On Thu, 19 Sep 2013, Fons Adriaensen wrote: I am no expert either, but, if pa has access to an audio device that jack can get best latency of -p128 and jack is working with a device that can work with -p64... add pa-jack to the mix and jack will only work at -p128 even with a device it could normally work at -p64 with. Add to that the same -p128 device has problems with the wifi giving xruns forces those xruns across the pa-jack IF. If I turn that device off in pa tha problems go away. Also the amount of CPU time used by PA rises a lot when connected to jack. Just my personal observations. -- Len Ovens www.ovenwerks.net

On Fri, September 20, 2013 12:00 am, Len Ovens wrote: PA CPU time is quite heavily dependant on the amount of latency. Smaller period sizes require PA to query the graph more frequently which pushes up CPU load. http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/Developer… Yes, this is another metric I am testing for so it would be nice to have a single app for both measurements. With the graph that Fons has suggested it seems like it should be possible to do it all in one go even while modifying the period size and other system configuration settings. An automated method for all of the above would be very useful for a lot of professional use cases. Something along the lines of "JackPulse Latency Test" (JPLT). -- Patrick Shirkey Boost Hardware Ltd

On Fri, 20 Sep 2013, Patrick Shirkey wrote: Yes, I found that too. Really, it has only been since the end of 2012 that pa-jack bridging has been usable without too much fiddling. So there are a lot of things no-one knows. Bridging pa to jack changes the way pa works significantly. PA makes some default assumptions. 44.1k (I changed mine to 48k, both default and backup). Pa will do on the fly sample rate change if needed to mix two streams or to match an input stream to a sink. This will affect cpu use as well as latency even if latency is locked to jack. PA is built to hide differences between source and sink from the user, both levels an rate. Latency comes after that... To get the best out of pa or pa-jack, the user needs to follow some rules... the ones I know of are: - turn off (in the pa config) all audio devices not being used. The one jack uses can be left on because as soon as jack grabs it pa can't really see it anyway. - set the sample rate the same in jack, pa, and any app pa talks to. - in the case of playing back files... try ( :P ) to use files with the same rate too. (pretty hard to do... and not worth recoding to achieve, put up with the extra cpu load) - Try to find tools that deal directly with jack (better than audacity does please!) - Set jackd-sink/source to only two channels (or minimum needed) and no auto-connect (probably) Cpu use goes up with number of channels of course. - Other things I have yet to find. I can think of only two normal uses for pa-jack (I am sure there are more, but I tend to tunnel vision in these things :) 1) for running desktop apps through jack for simplicity of setup. This is something a firewire user might do for sure, but it is handy in other cases as well. 2) remote audio transport as in broadcast use. This requires more thought because latency becomes more important. It is often better to use more than one machine for this. A standard use may have a number of code/decode steps at the same time. Think two audio files being decoded, two more for a skype line (one decode and one encode), some audio processing to sweeten the output and then encode the stream for output. I found 20ms (as per qjackctl) was hard to get without trouble (xruns, or runaway stutter from pa). Older P4 machine at 2.4Ghz, ice1712 audio, using idjc on the jack side no sweetening. The one person I have worked with on this runs his phone app on a second computer (teamspeak I think) and runs an audio line into his mixer from that. So no PA :) I would really like to try netjack with opus encoding as a method providing remote content. I may have to "roll my own" to try it any time soon though. But I don't know how well netjack deals with systems behind routers. -- Len Ovens www.ovenwerks.net

For comparison taking PA out of the graph: jack_iodelay (out) -> ecasound (in) -> ecasound (out) -> system (out) -> system (in) -> jack_iodelay (in) I see stable performance with the following result after a few seconds of "burn in". 218.905 frames 4.561 ms total roundtrip latency extra loopback latency: 26 frames use 13 for the backend arguments -I and -O ?? Inv However after switching to the browser and writing this email then switching back again I see the following data: 33114.906 frames 689.894 ms total roundtrip latency extra loopback latency: 32922 frames use 16461 for the backend arguments -I and -O ?? Switching back to the browser to write some more I see the a stable 4.561ms again and that has stayed stable after a couple of switches between browser/console. After more test the latency is definitely being affected by xorg and switching between apps but not every time. With only jack_iodelay running I see the cpu load hovering between 30 to 40%. With ecasound added to the graph I see cpu load hovering between 30 to 50%. Ecasound has not reported any underruns during this test. With PA included I had 32 underruns over night (approx 6 hours of running). The things I am now trying to rule out or trace: - Potential priority conflicts between jack and xorg (I'm running gnome3) - What causes erratic results with PA in the graph Suggestions welcome. -- Patrick Shirkey Boost Hardware Ltd

On Fri, September 20, 2013 8:31 pm, Fons Adriaensen wrote: xruns? -- Patrick Shirkey Boost Hardware Ltd

On Sat, September 21, 2013 1:12 am, Fons Adriaensen wrote: I can hear the signal fine but I cannot hear or see the result of the signal after it comes back in the mic input. I could attempt to capture that part of the signal too for reference sake. If there are significant dropouts will that be the likely cause of the "??" I'm running jack with realtime capabilities but not a realtime kernel. It's just a standard debian install at this point. If anyone else has a fully tuned system that they know can do low latency with jack and can provide test results for jack+pa that would be very useful. -- Patrick Shirkey Boost Hardware Ltd

On Sat, September 21, 2013 5:08 am, Fons Adriaensen wrote: Are there competing definitions these days? In this case PA is not in the loop. However I am running the system at 64 frames/period and it is an onboard hda_intel chipset so I am not expecting miracles. I can hear the signal coming out of the speakers. I can't hear or see it easily once it has been returned into the system again via the mic. My ears could be deceiving me though. Does anyone have another suggestion for how to accurately monitor audio discontinuities in realtime so I can rule them out or tweak the system until they are no longer occurring? zita-scope perhaps? Regarding scripting the test procedure. Basically start up jack at varying period sizes and run the test system for x amount of time (minimum of 10 mins). Collate the details returned by the console logs and parse them into a report. Number of nodes in the graph Average latency Number of xruns Number of changes to the latency Total number of x latency recorded Number of xruns during x latency CPU load during x latency Processes running during x latency and CPU load for each process What I am missing from the report is latency between each node in the graph. I think jack_iodelay could be extended to provide a passthrough for an input signal pulse and send a response at another frequency using the input pulse as a trigger then timestamp the signals and report the individual latencies. Maybe this could be done with a single instance so that they all share the same clock and logging mechanism? ex. jack_delay --ports=4 The graph would then look like this: jack_delay (out1) -> pa_source (in) -> jack_delay(in2) -> jack_delay (out2) -> ecasound (in) -> ecasound (out) -> jack_delay (in3) -> jack_delay (out3) -> pa_sink (out) -> jack_delay (in4) -> jack_delay (out4) -> system_out -> system_in -> jack_delay (in1) Obviously sharing a port of jack_delay between JACK and PA is going to be a mother trucker to implement and is probably the most painful method, so if there are other more effective and simpler methods to get the data out of the system it would be very helpful to know about them. -- Patrick Shirkey Boost Hardware Ltd