[LAD] cpu spikes

Harry van Haaren harryhaaren at gmail.com
Sun Jan 24 15:24:08 UTC 2016

On Sun, Jan 24, 2016 at 2:03 PM, Fokke de Jong <fokkedejong at gmail.com>

> Currently working on some realtime convolution with lots of channels and
> low latency requirements, but I am running into some unexpected cpu-spikes
> and hope some of you might have an idea of possible causes.

Keep an eye on the interrupts while its all running, particularly
Non-maskable interrupts. Try to correlate them with the 0.6 sec
of the glitches if possible;

watch -n 0.1 cat /proc/interrupts

I've written up some of the checks I generally do, perhaps browse
that to see if there's anything there that you could check?

Thats all I can think of at the moment, -Harry


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