ailo wrote:
  I've been looking around for any tests made
comparing the different
 kernels, -rt, generic, or any other type of realtime enchanced kernel.
 I haven't found any test results yet, at least none audio related. I did
 find some testing tools at 
rt.wiki.kernel.org, but don't know if and how
 they could be made relevant to audio low latency testing.
 I suppose the most interesting results would come from testing different
 kernels with jack/alsa and jack/ffado.
 Has anyone done such tests? 
 There is jack_delay from fons, which can measure the effective overall
 latency of your soundcard/drivers/jack/whatever. Plus there is a
 "latency.pd" patch that does the same (but with less precision) and
 which also features a nice "continuity" measurement, detecting cliks and
 dropouts.
 best, P
 
I've must have seen "latency.pd" at some point, but forgotten about it.
Since I use pd almost exclusively I will find it most useful.
I will also have a look at jack_delay.
Thanks.
--
ailo