From: Andi Kleen <andi@firstfloor.org>
To: Vegard Nossum <vegard.nossum@gmail.com>
Cc: "Ingo Molnar" <mingo@elte.hu>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Andreas Herrmann" <andreas.herrmann3@amd.com>,
"S.Çağlar Onur" <caglar@pardus.org.tr>,
Valdis.Kletnieks@vt.edu, "Matt Mackall" <mpm@selenic.com>,
linux-kernel@vger.kernel.org
Subject: Re: [BISECTED] Lots of "rescheduling IPIs" in powertop
Date: Tue, 13 May 2008 22:54:40 +0200 [thread overview]
Message-ID: <873aol9b73.fsf@basil.nowhere.org> (raw)
In-Reply-To: <20080513204206.GA17781@damson.getinternet.no> (Vegard Nossum's message of "Tue, 13 May 2008 22:42:06 +0200")
Vegard Nossum <vegard.nossum@gmail.com> writes:
>
> This initially showed up on my 2.6.24.5-85.fc8 (Fedora) kernel.
>
> I have two different systems (one laptop, one desktop) which both show the
> same symptoms, please do tell me if you need any more info.
What CPUs do they have? And does the problem really go away when
you boot with idle=mwait ? And what does the following program
output?
#include <asm/msr.h>
main()
{
printf("%x\n", cpuid_edx(5));
}
-Andi
next prev parent reply other threads:[~2008-05-13 20:54 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-13 20:42 [BISECTED] Lots of "rescheduling IPIs" in powertop Vegard Nossum
2008-05-13 20:54 ` Andi Kleen [this message]
2008-05-13 21:09 ` Vegard Nossum
2008-05-13 21:19 ` Andi Kleen
2008-05-14 4:02 ` Arjan van de Ven
2008-05-14 6:58 ` Andi Kleen
2008-05-14 13:55 ` Arjan van de Ven
2008-05-14 15:21 ` Andi Kleen
2008-05-14 6:00 ` Vegard Nossum
2008-05-14 6:56 ` Ingo Molnar
2008-05-14 7:11 ` Vegard Nossum
2008-05-14 9:09 ` Andreas Herrmann
2008-05-14 11:42 ` Andi Kleen
2008-05-15 16:10 ` Andreas Herrmann
2008-05-16 8:40 ` Ingo Molnar
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