Re: realtime-preempt-2.6.12-final-V0.7.51-11 glitches

[Ingo Molnar]

* Ingo Molnar <mingo@xxxxxxx> wrote:

> i have just done a jack_test4.1 run, and indeed larger latencies seem 
> to have crept in. (But i forgot to chrt the sound IRQ above the 
> network IRQ, so i'll retest.)

with the sound irq chrt-ed to prio 90 the latencies look pretty good:

 ************* SUMMARY RESULT ****************
 Total seconds ran . . . . . . :   300
 Number of clients . . . . . . :    14
 Ports per client  . . . . . . :     4
 Frames per buffer . . . . . . :    64
 Number of runs  . . . . . . . :(    1)
 *********************************************
 Timeout Count . . . . . . . . :(    0)
 XRUN Count  . . . . . . . . . :     0
 Delay Count (>spare time) . . :     0
 Delay Count (>1000 usecs) . . :     0
 Delay Maximum . . . . . . . . :    18   usecs
 Cycle Maximum . . . . . . . . :   637   usecs
 Average DSP Load. . . . . . . :    36.3 %
 Average CPU System Load . . . :    18.8 %
 Average CPU User Load . . . . :    29.3 %
 Average CPU Nice Load . . . . :     0.0 %
 Average CPU I/O Wait Load . . :     0.0 %
 Average CPU IRQ Load  . . . . :     0.0 %
 Average CPU Soft-IRQ Load . . :     0.0 %
 Average Interrupt Rate  . . . :  1680.1 /sec
 Average Context-Switch Rate . : 14361.3 /sec
 *********************************************
 Delta Maximum . . . . . . . . : 0.00000
 *********************************************

and this was with LATENCY_TRACE turned on.

	Ingo
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