Re: [PATCH]sched: Isochronous class v2 for unprivileged soft rt scheduling

[Con Kolivas]

Con Kolivas wrote:
> Jack O'Quin wrote:
>
> > Con Kolivas <kernel@xxxxxxxxxxx> writes:
> >
> >
> > > Here's fresh results on more stressed hardware (on ext3) with
> > > 2.6.11-rc1-mm2 (which by the way has SCHED_ISO v2 included). The load
> > > hovering at 50% spikes at times close to 70 which tests the behaviour
> > > under iso throttling.
> >
> >
> >
> > What version of JACK are you running (`jackd --version')?
> >
> > You're still getting zero Delay Max.  That is an important measure.
>
>
> Ok updated jackd
>
> Here's an updated set of runs. Not very impressive even with SCHED_FIFO, 
> but the same from both policies.
>
> ==> jack_test4-2.6.11-rc1-mm2-fifo.log <==
> Number of runs  . . . . . . . :(    1)
> *********************************************
> Timeout Count . . . . . . . . :(    0)
> XRUN Count  . . . . . . . . . :   404
> Delay Count (>spare time) . . :     0
> Delay Count (>1000 usecs) . . :     0
> Delay Maximum . . . . . . . . : 261254   usecs
> Cycle Maximum . . . . . . . . :  2701   usecs
> Average DSP Load. . . . . . . :    52.4 %
> Average CPU System Load . . . :     5.1 %
> Average CPU User Load . . . . :    18.1 %
> 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  . . . :  1699.3 /sec
> Average Context-Switch Rate . : 19018.9 /sec
> *********************************************
> Delta Maximum . . . . . . . . : 0.00000
> *********************************************
>
> ==> jack_test4-2.6.11-rc1-mm2-iso.log <==
> Number of runs  . . . . . . . :(    1)
> *********************************************
> Timeout Count . . . . . . . . :(    0)
> XRUN Count  . . . . . . . . . :   408
> Delay Count (>spare time) . . :     0
> Delay Count (>1000 usecs) . . :     0
> Delay Maximum . . . . . . . . : 269804   usecs
> Cycle Maximum . . . . . . . . :  2449   usecs
> Average DSP Load. . . . . . . :    52.6 %
> Average CPU System Load . . . :     5.0 %
> Average CPU User Load . . . . :    17.8 %
> Average CPU Nice Load . . . . :     0.0 %
> Average CPU I/O Wait Load . . :     0.1 %
> Average CPU IRQ Load  . . . . :     0.0 %
> Average CPU Soft-IRQ Load . . :     0.0 %
> Average Interrupt Rate  . . . :  1699.2 /sec
> Average Context-Switch Rate . : 19041.0 /sec
> *********************************************
> Delta Maximum . . . . . . . . : 0.00000
> *********************************************

Bah stupid me. Both of those are SCHED_NORMAL.

Ignore those, and I'll try again.

Con

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