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

From: Ingo Molnar
Date: Sat Jan 22 2005 - 11:58:30 EST



* Jack O'Quin <joq@xxxxxx> wrote:

> I finally made new kernel builds for the latest patches from both Ingo
> and Con. I kept the two patch sets separate, as they modify some of
> the same files.
>
> I ran three sets of tests with three or more 5 minute runs for each
> case. The results (log files and graphs) are in these directories...
>
> 1) sched-fifo -- as a baseline
> http://www.joq.us/jack/benchmarks/sched-fifo
>
> 2) sched-iso -- Con's scheduler, no privileges
> http://www.joq.us/jack/benchmarks/sched-iso
>
> 3) nice-20 -- Ingo's "nice --20" scheduler hack
> http://www.joq.us/jack/benchmarks/nice-20

thanks for the testing. The important result is that nice--20
performance is roughly the same as SCHED_ISO. This somewhat
reduces the urgency of the introduction of SCHED_ISO.

Ingo
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