From: Con Kolivas <kernel@kolivas.org>
To: Carlos Carvalho <carlos@fisica.ufpr.br>
Cc: ck@vds.kolivas.org, "Ingo Molnar" <mingo@elte.hu>,
"Markus Törnqvist" <mjt@nysv.org>,
linux-kernel@vger.kernel.org, AndrewMorton <akpm@osdl.org>
Subject: Re: [ck] Re: [PATCH] implement nice support across physical cpus on SMP
Date: Wed, 11 May 2005 12:56:15 +1000 [thread overview]
Message-ID: <200505111256.15498.kernel@kolivas.org> (raw)
In-Reply-To: <17023.63512.319555.552924@fisica.ufpr.br>
On Tue, 10 May 2005 09:54 am, Carlos Carvalho wrote:
> Con Kolivas (kernel@kolivas.org) wrote on 9 May 2005 21:47:
> >Perhaps if I make the prio_bias multiplied instead of added to the cpu
> > load it will be less affected by SCHED_LOAD_SCALE. The attached patch
> > was confirmed during testing to also provide smp distribution according
> > to nice on 4x.
>
> It seems to work. I've tested it for a few hours on the same machine
> and the 2 nice 0 processes take the bulk of the cpu time, while that
> cpu bound program running at nice 19 takes only about 7%.
>
> Maybe it's a bit early to say it's fine, but it does semm much better
> than before, so I think it should go into the tree.
>
> Thanks a lot!
My pleasure. Thanks for testing.
I'll roll up these patches for rc4 and make smp nice balancing a config option
for ultimate flexibility.
Cheers,
Con
next prev parent reply other threads:[~2005-05-11 2:55 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-07 13:42 [PATCH] implement nice support across physical cpus on SMP Con Kolivas
2005-05-07 17:59 ` Carlos Carvalho
2005-05-07 21:45 ` Con Kolivas
2005-05-09 11:24 ` Markus Törnqvist
2005-05-09 11:28 ` [ck] " Markus Törnqvist
2005-05-09 11:47 ` Con Kolivas
2005-05-09 18:55 ` Markus Törnqvist
2005-05-09 23:54 ` Carlos Carvalho
2005-05-11 2:56 ` Con Kolivas [this message]
2005-05-11 3:04 ` [SMP NICE] [PATCH 1/2] SCHED: Implement " Con Kolivas
2005-05-11 3:05 ` [SMP NICE] [PATCH 2/2] SCHED: Make SMP nice a config option Con Kolivas
2005-05-11 7:20 ` Ingo Molnar
2005-05-12 10:49 ` Con Kolivas
2005-05-16 11:33 ` [SMP NICE] [PATCH] SCHED: Implement nice support across physical cpus on SMP Con Kolivas
2005-05-16 18:31 ` Markus Törnqvist
2005-05-17 13:39 ` Carlos Carvalho
2005-05-18 11:30 ` Markus Törnqvist
2005-05-18 13:45 ` Con Kolivas
2005-05-21 5:00 ` Con Kolivas
2005-05-23 9:28 ` [PATCH] SCHED: change_prio_bias_only_if_queued Con Kolivas
2005-05-23 10:07 ` [PATCH] SCHED: account_rt_tasks_in_prio_bias Con Kolivas
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