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

[Con Kolivas]

Con Kolivas wrote:
> 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

So let's try again, sorry about the noise:

==> jack_test4-2.6.11-rc1-mm2-fifo.log <==
Number of runs  . . . . . . . :(    1)
*********************************************
Timeout Count . . . . . . . . :(    0)
XRUN Count  . . . . . . . . . :     3
Delay Count (>spare time) . . :     0
Delay Count (>1000 usecs) . . :     0
Delay Maximum . . . . . . . . : 20161   usecs
Cycle Maximum . . . . . . . . :  1072   usecs
Average DSP Load. . . . . . . :    47.2 %
Average CPU System Load . . . :     5.1 %
Average CPU User Load . . . . :    18.0 %
Average CPU Nice Load . . . . :     0.1 %
Average CPU I/O Wait Load . . :     0.3 %
Average CPU IRQ Load  . . . . :     0.0 %
Average CPU Soft-IRQ Load . . :     0.0 %
Average Interrupt Rate  . . . :  1701.6 /sec
Average Context-Switch Rate . : 19343.7 /sec
*********************************************
Delta Maximum . . . . . . . . : 0.00000
*********************************************

==> jack_test4-2.6.11-rc1-mm2-iso.log <==
Number of runs  . . . . . . . :(    1)
*********************************************
Timeout Count . . . . . . . . :(    0)
XRUN Count  . . . . . . . . . :     6
Delay Count (>spare time) . . :     0
Delay Count (>1000 usecs) . . :     0
Delay Maximum . . . . . . . . :  4604   usecs
Cycle Maximum . . . . . . . . :  1190   usecs
Average DSP Load. . . . . . . :    54.5 %
Average CPU System Load . . . :    11.6 %
Average CPU User Load . . . . :    18.4 %
Average CPU Nice Load . . . . :     0.1 %
Average CPU I/O Wait Load . . :     0.0 %
Average CPU IRQ Load  . . . . :     0.0 %
Average CPU Soft-IRQ Load . . :     0.0 %
Average Interrupt Rate  . . . :  1697.9 /sec
Average Context-Switch Rate . : 19046.2 /sec
*********************************************
Delta Maximum . . . . . . . . : 0.00000
*********************************************

Pretty pictures:
http://ck.kolivas.org/patches/SCHED_ISO/iso2-benchmarks/

Note these are on a full desktop environment, although it is pretty much 
idle apart from checking email. No changes between fifo and iso runs.

Cheers,
Con

Attachment: signature.asc
Description: OpenPGP digital signature