From: Micah Dowty <micah@vmware.com>
To: Cyrus Massoumi <cyrusm@gmx.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: High priority tasks break SMP balancer?
Date: Wed, 14 Nov 2007 10:39:30 -0800 [thread overview]
Message-ID: <20071114183929.GA9287@vmware.com> (raw)
In-Reply-To: <20071110001103.GD16250@vmware.com>
On Fri, Nov 09, 2007 at 04:11:03PM -0800, Micah Dowty wrote:
> It's also possible this problem doesn't occur on 2.6.17. I have only
> tested this example on 2.6.23.1 and 2.6.20 so far.
I tested a handful of kernel versions, and it looks like this is
indeed the case. As far as I can tell, this problem was introduced
between 2.6.19.7 and 2.6.20.
Looking at the diff between those versions, it looks like there were
some noteworthy changes to the SMP balancer. I'm still working on
narrowing this down further.
Thanks,
--Micah
next prev parent reply other threads:[~2007-11-14 18:39 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-09 22:34 High priority tasks break SMP balancer? Micah Dowty
2007-11-09 23:56 ` Cyrus Massoumi
2007-11-10 0:11 ` Micah Dowty
2007-11-14 18:39 ` Micah Dowty [this message]
2007-11-15 18:48 ` Kyle Moffett
2007-11-15 19:14 ` Micah Dowty
2007-11-15 20:07 ` Christoph Lameter
2007-11-15 20:24 ` Micah Dowty
2007-11-15 21:28 ` Christoph Lameter
2007-11-15 21:35 ` Micah Dowty
2007-11-16 2:31 ` Christoph Lameter
2007-11-16 2:44 ` Micah Dowty
2007-11-16 6:07 ` Ingo Molnar
2007-11-16 9:19 ` Micah Dowty
2007-11-16 10:45 ` Ingo Molnar
2007-11-16 10:48 ` Micah Dowty
2007-11-16 22:12 ` Christoph Lameter
2007-11-16 10:48 ` Dmitry Adamushko
2007-11-16 22:14 ` Micah Dowty
2007-11-16 23:26 ` Dmitry Adamushko
2007-11-17 1:03 ` Micah Dowty
2007-11-17 19:10 ` Dmitry Adamushko
2007-11-19 18:51 ` Micah Dowty
2007-11-19 22:22 ` Dmitry Adamushko
2007-11-19 23:05 ` Micah Dowty
2007-11-20 5:57 ` Ingo Molnar
2007-11-20 18:06 ` Micah Dowty
2007-11-20 21:47 ` Dmitry Adamushko
2007-11-22 7:46 ` Micah Dowty
2007-11-22 12:53 ` Dmitry Adamushko
2007-11-26 19:44 ` Micah Dowty
2007-11-27 9:21 ` Dmitry Adamushko
2007-11-27 17:13 ` Micah Dowty
2007-11-16 19:13 ` David Newall
2007-11-16 21:38 ` Micah Dowty
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