From: Ingo Molnar <mingo@elte.hu>
To: "Török Edvin" <edwintorok@gmail.com>
Cc: mingo@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: CFS Scheduler and real-time tasks
Date: Thu, 17 May 2007 22:13:38 +0200 [thread overview]
Message-ID: <20070517201338.GA1713@elte.hu> (raw)
In-Reply-To: <4354d3270705171310x1d7770b2mb086f1fde7cffabd@mail.gmail.com>
* Török Edvin <edwintorok@gmail.com> wrote:
> On 5/17/07, Ingo Molnar <mingo@elte.hu> wrote:
> >
> >note: you ran it on a dual-core system and the SMP load-balancer needs
> >time to gain precision in the non-RT test - so i'd suggest to test it
> >much longer than 10 seconds: 300 seconds at least.
>
> Thanks, running for 300 seconds shows only a 2% error. Even running a
> I/O workload while running the massive_intr test keeps the same error.
hey, cool! Also try -v13 - it should be even more tighter.
> BTW, the system is more 'responsive'. For example starting
> applications while running the tests, switching windows, moving
> windows is much "smoother" than on default scheduler.
yeah :)
> [while true;do cp /usr/portage/distfiles/linux-2.6.21.tar.bz2 . &&
> sync && rm linux-2.6.21.tar.bz2 && sync; done]
>
> ./massiv_new 9 300
> 020860 00017782
> 020858 00017774
>
> RT JOB:020865 00003785
>
> 020859 00017048
> 020862 00017387
> 020855 00017494
> 020861 00017245
> 020863 00017492
> 020864 00017122
looks pretty good!
Ingo
next prev parent reply other threads:[~2007-05-17 20:13 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-17 19:14 CFS Scheduler and real-time tasks Török Edvin
2007-05-17 19:23 ` Ingo Molnar
2007-05-17 20:10 ` Török Edvin
2007-05-17 20:13 ` Ingo Molnar [this message]
2007-05-18 21:07 ` Török Edvin
2007-06-16 7:21 ` Török Edvin
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