Re: [test] hackbench.c interactivity results: vanilla versus SD/RSDL

Mike Galbraith
2007-03-30T16:47:01Z

On Fri, 2007-03-30 at 15:05 +0000, Xenofon Antidides wrote:
> ----- Original Message ----
> From: Ingo Molnar <mingo@elte.hu>
> To: Con Kolivas <kernel@kolivas.org>
> Cc: linux list <linux-kernel@vger.kernel.org>; Andrew Morton <akpm@linux-foundation.org>; Mike Galbraith <efault@gmx.de>
> Sent: Thursday, March 29, 2007 9:22:49 PM
> Subject: [test] hackbench.c interactivity results: vanilla versus SD/RSDL
>
>
> * Ingo Molnar <mingo@elte.hu> wrote:
>
> > * Con Kolivas <kernel@kolivas.org> wrote:
> >
> > > I'm cautiously optimistic that we're at the thin edge of the bugfix
> > > wedge now.
> [...]
>
> > and the numbers he posted:
> >
> > http://marc.info/?l=linux-kernel&m=117448900626028&w=2
>
> We been staring at these numbers for while now and we come to the conclusion they wrong.
>
> The test is f is 3 tasks, two on different and one on same cpu as sh here:
> virgin 2.6.21-rc3-rsdl-smp
> top - 13:52:50 up 7 min, 12 users, load average: 3.45, 2.89, 1.51
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ P COMMAND
> 6560 root 31 0 2892 1236 1032 R 82 0.1 1:50.24 1 sh
> 6558 root 28 0 1428 276 228 S 42 0.0 1:00.09 1 f
> 6557 root 30 0 1424 280 228 R 35 0.0 1:00.25 0 f
> 6559 root 39 0 1424 276 228 R 33 0.0 0:58.36 0 f

This is a 1 second sample, tasks migrate.

-Mike