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 [email protected]/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. Cheers. -- rncbc aka Rui Nuno Capela [email protected]
Attachment:
jack_test4.2.tar.gz
Description: application/gzip-compressed
Attachment:
config-2.6.12-RT-V0.7.49-01.0.gz
Description: Binary data
Attachment:
config-2.6.12-RT-V0.7.51-11.0.gz
Description: Binary data
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