From: Ingo Molnar <mingo@elte.hu>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Fernando Lopez-Lezcano <nando@ccrma.Stanford.EDU>,
linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org,
Mike Galbraith <efault@gmx.de>,
Clark Williams <williams@redhat.com>,
Sergei Shtylyov <sshtylyov@ru.mvista.com>,
Thomas Gleixner <tglx@linutronix.de>,
Giandomenico De Tullio <ghisha@email.it>
Subject: Re: v2.6.19-rt6, yum/rpm
Date: Thu, 7 Dec 2006 22:44:34 +0100 [thread overview]
Message-ID: <20061207214434.GA29357@elte.hu> (raw)
In-Reply-To: <1165526445.27217.59.camel@laptopd505.fenrus.org>
* Arjan van de Ven <arjan@infradead.org> wrote:
> > i think it's the UP vs. SMP difference. We are chasing some SMP
> > latencies right now that trigger on boxes that have deeper C sleep
> > states. idle=poll seems to work around those problems.
>
> well C-states do cause latencies... as advertized in the
> /proc/acpi/processor/CPU0/power file.
no, this is a plain logic bug somewhere, not a hardware latency.
Sometimes the latency is in the seconds range, etc.
Ingo
next prev parent reply other threads:[~2006-12-07 21:45 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-05 17:11 v2.6.19-rt6, yum/rpm Ingo Molnar
2006-12-07 11:33 ` K.R. Foley
2006-12-07 12:13 ` Ingo Molnar
2006-12-07 15:54 ` K.R. Foley
2006-12-07 16:57 ` Ingo Molnar
2006-12-07 19:40 ` K.R. Foley
2006-12-07 20:04 ` Ingo Molnar
2006-12-07 20:45 ` Fernando Lopez-Lezcano
2006-12-07 20:58 ` Ingo Molnar
2006-12-07 21:07 ` Fernando Lopez-Lezcano
2006-12-07 21:42 ` Fernando Lopez-Lezcano
2006-12-07 21:20 ` Arjan van de Ven
2006-12-07 21:44 ` Ingo Molnar [this message]
2006-12-08 19:40 ` Ethernet transmit timeouts, was: " Dirk Behme
2006-12-08 20:15 ` Thomas Gleixner
2006-12-09 7:53 ` Ethernet transmit timeouts Dirk Behme
2006-12-10 8:27 ` Ingo Molnar
2006-12-09 4:26 ` Ethernet transmit timeouts, was: v2.6.19-rt6, yum/rpm Bruce Ashfield
2006-12-15 16:18 ` Sergei Shtylyov
2006-12-15 16:19 ` Ingo Molnar
2007-02-01 15:52 ` Sergei Shtylyov
2007-02-01 17:38 ` Ingo Molnar
2007-02-01 17:49 ` Ingo Molnar
2007-02-01 18:01 ` Sergei Shtylyov
2007-03-07 14:55 ` Sergei Shtylyov
2007-03-07 14:55 ` Sergei Shtylyov
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