From: "Martin J. Bligh" <mbligh@aracnet.com>
To: Erich Focht <efocht@ess.nec.de>
Cc: Michael Hohnbaum <hohnbaum@us.ibm.com>,
mingo@redhat.com, habanero@us.ibm.com,
linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net
Subject: Re: NUMA scheduler (was: 2.5 merge candidate list 1.5)
Date: Mon, 28 Oct 2002 09:35:37 -0800 [thread overview]
Message-ID: <535130000.1035826537@flay> (raw)
In-Reply-To: <200210281826.37451.efocht@ess.nec.de>
> I'm puzzled about the initial load balancing impact and have to think
> about the results I've seen from you so far... In the environments I am
> used to, the frequency of exec syscalls is rather low, therefore I didn't
> care too much about the sched_balance_exec performance and prefered to
> try harder to achieve good distribution across the nodes.
OK, but take a look at Michael's second patch. It still looks at
nr_running on every queue in the system (with some slightly strange
code to make a rotating choice on nodes on the case of equality),
so should still be able to make the best decision .... *but* it
seems to be much cheaper to execute. Not sure why at this point,
given the last results I sent you last night ;-)
M.
next prev parent reply other threads:[~2002-10-28 17:47 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-23 21:26 Crunch time -- the musical. (2.5 merge candidate list 1.5) Rob Landley
2002-10-24 16:17 ` Michael Hohnbaum
[not found] ` <200210240750.09751.landley@trommello.org>
2002-10-24 19:01 ` Michael Hohnbaum
2002-10-24 21:51 ` Erich Focht
2002-10-24 22:38 ` Martin J. Bligh
2002-10-25 8:15 ` Erich Focht
2002-10-25 23:26 ` Martin J. Bligh
2002-10-25 23:45 ` Martin J. Bligh
2002-10-26 0:02 ` Martin J. Bligh
2002-10-26 18:58 ` Martin J. Bligh
2002-10-26 19:14 ` NUMA scheduler (was: 2.5 " Martin J. Bligh
2002-10-27 18:16 ` Martin J. Bligh
2002-10-28 0:32 ` Erich Focht
2002-10-27 23:52 ` Martin J. Bligh
2002-10-28 0:55 ` [Lse-tech] " Michael Hohnbaum
2002-10-28 4:23 ` Martin J. Bligh
2002-10-28 0:31 ` Martin J. Bligh
2002-10-28 16:34 ` Erich Focht
2002-10-28 16:57 ` Martin J. Bligh
2002-10-28 17:26 ` Erich Focht
2002-10-28 17:35 ` Martin J. Bligh [this message]
2002-10-29 0:07 ` [Lse-tech] " Erich Focht
2002-10-28 0:46 ` Martin J. Bligh
2002-10-28 17:11 ` Erich Focht
2002-10-28 18:32 ` Martin J. Bligh
2002-10-28 17:38 ` Erich Focht
2002-10-28 17:36 ` Martin J. Bligh
2002-10-28 23:49 ` Erich Focht
2002-10-29 0:00 ` Martin J. Bligh
2002-10-29 1:12 ` Gerrit Huizenga
2002-10-29 22:39 ` Erich Focht
2002-10-28 7:16 ` Martin J. Bligh
2002-10-25 14:46 ` Crunch time -- the musical. (2.5 " Kevin Corry
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