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

[Con Kolivas]

Jack O'Quin wrote:
> Con Kolivas <kernel@xxxxxxxxxxx> writes:
>
>
> > So let's try again, sorry about the noise:
> >
> > ==> jack_test4-2.6.11-rc1-mm2-fifo.log <==
> > *********************************************
> > XRUN Count  . . . . . . . . . :     3
> > Delay Maximum . . . . . . . . : 20161   usecs
> > *********************************************
> >
> > ==> jack_test4-2.6.11-rc1-mm2-iso.log <==
> > *********************************************
> > XRUN Count  . . . . . . . . . :     6
> > Delay Maximum . . . . . . . . :  4604   usecs
> > *********************************************
> >
> > Pretty pictures:
> > http://ck.kolivas.org/patches/SCHED_ISO/iso2-benchmarks/
>
>
> Neither run exhibits reliable audio performance.  There is some low
> latency performance problem with your system.  Maybe ReiserFS is
> causing trouble even with logging turned off.  Perhaps the problem is
> somewhere else.  Maybe some device is misbehaving.
>
> Until you solve this problem, beware of drawing conclusions.

Sigh.. I guess you want me to do all the benchmarking. Well it's easy 
enough to get good results. I'll simply turn off all services and not 
run a desktop. This is all on ext3 on a fully laden desktop by the way, 
but if you want to get the results you're looking for I can easily drop 
down to a console and get perfect results.

Con

Attachment: signature.asc
Description: OpenPGP digital signature