lkml.org 
[lkml]   [2005]   [Jul]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
DateThu, 7 Jul 2005 19:53:03 +0100 (WEST)
Subjectrealtime-preempt-2.6.12-final-V0.7.51-11 glitches [2]
From"Rui Nuno Capela" <>
> Hi all,
>
> These are one of my latest consolidated results while using (my)
> jack_test4.2 suite, against a couple of 2.6.12 kernels patched for
> PREEMPT_RT, on my P4@2.5GHz/UP laptop.
>
> See anything funny?
>
> As it seems, the kernel latency performance is in some unfortunate
> regression, and I'm experiencing this unsatisfactory behavior ever since
> the latest RT-V0.7.50-xx patch series.
>
> ------------------------------ ------------- -------------
> RT-V0.7.51-11 RT-V0.7.49-01
> ------------------------------ ------------- -------------
> Total seconds ran . . . . . . : 900 900
> Number of clients . . . . . . : 14 14
> Ports per client . . . . . . : 4 4
> Frames per buffer . . . . . . : 64 64
> Number of runs . . . . . . . : 1 1
> ------------------------------ ------------- -------------
> Failure Rate . . . . . . . . : ( 0.0 ) ( 0.0) /hour
> XRUN Rate . . . . . . . . . . : 373.3 0.0 /hour
> Delay Rate (>spare time) . . : 220.0 0.0 /hour
> Delay Rate (>1000 usecs) . . : 0.0 0.0 /hour
> Delay Maximum . . . . . . . . : 7853 295 usecs
> Cycle Maximum . . . . . . . . : 852 943 usecs
> Average DSP Load. . . . . . . : 41.8 44.4 %
> Average CPU System Load . . . : 6.8 16.3 %
> Average CPU User Load . . . . : 28.8 30.1 %
> Average CPU Nice Load . . . . : 0.0 0.0 %
> Average CPU I/O Wait Load . . : 0.0 0.1 %
> Average CPU IRQ Load . . . . : 0.0 0.0 %
> Average CPU Soft-IRQ Load . . : 0.0 0.0 %
> Average Interrupt Rate . . . : 1679.3 1680.4 /sec
> Average Context-Switch Rate . : 12508.6 14463.2 /sec
> ------------------------------ ------------- -------------
>
> JFYI respective kernel configs are also attached.
>

Sorry, my last post failed on packing those configs away. Here it goes
again, hopefully.

Cheers.
--
rncbc aka Rui Nuno Capela
rncbc@rncbc.org[unhandled content-type:application/x-gzip-compressed][unhandled content-type:application/x-gzip-compressed]
\
 
 \ /
  Last update: 2005-07-07 21:12    [from the cache]
©2003-2010