From: Linus Torvalds <torvalds@linux-foundation.org>
To: Arjan van de Ven <arjan@linux.intel.com>
Cc: Chuck Ebbert <cebbert@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Anders Bostr?m <anders@bostrom.dyndns.org>,
linux-kernel@vger.kernel.org
Subject: Re: PROBLEM: high load average when idle
Date: Wed, 3 Oct 2007 11:28:23 -0700 (PDT) [thread overview]
Message-ID: <alpine.LFD.0.999.0710031125100.3579@woody.linux-foundation.org> (raw)
In-Reply-To: <4703DD8A.80602@linux.intel.com>
On Wed, 3 Oct 2007, Arjan van de Ven wrote:
>
> not sure this is going to help; I mean, the load gets only updated in actual
> timer interrupts... and on a tickless system there's very few of those
> around..... and usually at places round_jiffies() already put a timer on.
Yeah, you're right. Although in practice, at least on a system running
X, I'd expect that there still is lots of other timers going on, hiding
the issue.
Hmm. Maybe Anders' problem stems partly from the fact that he really is
using the tweaks to make that tickless theory more true than it tends to
be on most systems?
Linus
next prev parent reply other threads:[~2007-10-03 18:29 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-02 21:37 Anders Boström
2007-10-02 22:07 ` Andrew Morton
2007-10-02 22:32 ` Linus Torvalds
2007-10-02 22:39 ` Arjan van de Ven
2007-10-02 22:46 ` Mark Lord
2007-10-02 23:22 ` Arjan van de Ven
2007-10-02 23:40 ` Mark Lord
2007-10-02 23:19 ` Arjan van de Ven
2007-10-02 22:33 ` Chuck Ebbert
2007-10-02 23:26 ` Arjan van de Ven
2007-10-03 17:32 ` Chuck Ebbert
2007-10-03 18:02 ` Linus Torvalds
2007-10-03 18:20 ` Arjan van de Ven
2007-10-03 18:28 ` Linus Torvalds [this message]
2007-10-03 18:29 ` Arjan van de Ven
2007-10-03 20:15 ` Anders Boström
2007-10-03 18:34 ` Anders Boström
2007-10-02 23:13 ` Arjan van de Ven
2007-10-03 7:04 ` Anders Boström
2007-10-03 9:40 ` Thorsten Kranzkowski
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