realtime-preempt-2.6.12-final-V0.7.51-11 glitches [no more]
From: Rui Nuno Capela
Date: Fri Jul 08 2005 - 03:51:17 EST
OK.
Just for the heads up, here goes todays summary results regarding
my jack_test4.2 test suite against 2.6.12 kernels configured with
PREEMPT_RT, but... now with 99.9% certainty :)
------------------------------ ------------- -------------
RT-V0.7.51-13 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 . . . . . . . . . . : 0.0 0.0 /hour
Delay Rate (>spare time) . . : 0.0 0.0 /hour
Delay Rate (>1000 usecs) . . : 0.0 0.0 /hour
Delay Maximum . . . . . . . . : 333 295 usecs
Cycle Maximum . . . . . . . . : 970 943 usecs
Average DSP Load. . . . . . . : 45.7 44.4 %
Average CPU System Load . . . : 15.6 16.3 %
Average CPU User Load . . . . : 32.0 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 . . . : 1678.6 1680.4 /sec
Average Context-Switch Rate . : 14446.4 14463.2 /sec
------------------------------ ------------- -------------
Just for the forgiveness sake, my mistake was useful after all,
where one can incidentally assert the significantly lower performance
of PREEMPT_DESKTOP for audio work, when PREEMPT_RT is a clear winner.
As it was already, for quite some time. No more worries ;)
Thanks,
--
rncbc aka Rui Nuno Capela
rncbc@xxxxxxxxx
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