From: Peter Zijlstra <peterz@infradead.org>
To: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org, Gautham Shenoy <ego@in.ibm.com>,
Vatsa <vatsa@linux.vnet.ibm.com>
Subject: Re: [PATCH 0/12] cleanup __build_sched_domains()
Date: Tue, 18 Aug 2009 15:25:41 +0200 [thread overview]
Message-ID: <1250601941.7583.283.camel@twins> (raw)
In-Reply-To: <20090818131558.GO29515@alberich.amd.com>
On Tue, 2009-08-18 at 15:15 +0200, Andreas Herrmann wrote:
>
> > I'd also not be surprised if the load-balancer needed some care to
> > properly handle such a setup.
>
> It needs some care and gave me some headache to get it working in all
> cases (i.e. NUMA, no-NUMA, NUMA-but-no-SRAT). My current code (that
> still needs to be split in proper patches for submission) works fine
> in all but one case. And I am still debugging it.
>
> The case that is not working is a normal (non-multi-node) NUMA system
> on which switching to power policy does not take effect for already
> running tasks. Just the new created ones are scheduled according to
> the power policy.
Note that current upstream is broken here in a way that isn't fixable in
a straight fwd way. Ego and vatsa were looking into that iirc.
prev parent reply other threads:[~2009-08-18 13:25 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-18 10:49 [PATCH 0/12] cleanup __build_sched_domains() Andreas Herrmann
2009-08-18 10:51 ` [PATCH 01/12] sched: Use structure to store local data in __build_sched_domains Andreas Herrmann
2009-08-18 16:51 ` [tip:sched/domains] " tip-bot for Andreas Herrmann
2009-08-18 10:53 ` [PATCH 02/12] sched: Separate out allocation/free/goto-hell from __build_sched_domains Andreas Herrmann
2009-08-18 12:57 ` Peter Zijlstra
2009-08-18 13:35 ` Andreas Herrmann
2009-08-18 16:52 ` [tip:sched/domains] " tip-bot for Andreas Herrmann
2009-08-18 10:54 ` [PATCH 03/12] sched: Seperate out build of NUMA sched domain " Andreas Herrmann
2009-08-18 16:52 ` [tip:sched/domains] sched: Separate " tip-bot for Andreas Herrmann
2009-08-18 10:54 ` [PATCH 04/12] sched: Seperate out build of CPU " Andreas Herrmann
2009-08-18 16:52 ` [tip:sched/domains] sched: Separate " tip-bot for Andreas Herrmann
2009-08-18 10:56 ` [PATCH 05/12] sched: Seperate out build of MC " Andreas Herrmann
2009-08-18 16:52 ` [tip:sched/domains] sched: Separate " tip-bot for Andreas Herrmann
2009-08-18 10:57 ` [PATCH 06/12] sched: Seperate out build of SMT " Andreas Herrmann
2009-08-18 16:52 ` [tip:sched/domains] sched: Separate " tip-bot for Andreas Herrmann
2009-08-18 10:57 ` [PATCH 07/12] sched: Seperate out build of SMT sched groups " Andreas Herrmann
2009-08-18 16:53 ` [tip:sched/domains] sched: Separate " tip-bot for Andreas Herrmann
2009-08-18 10:58 ` [PATCH 08/12] sched: Seperate out build of MC " Andreas Herrmann
2009-08-18 16:53 ` [tip:sched/domains] sched: Separate " tip-bot for Andreas Herrmann
2009-08-18 10:59 ` [PATCH 09/12] sched: Seperate out build of CPU " Andreas Herrmann
2009-08-18 16:53 ` [tip:sched/domains] sched: Separate " tip-bot for Andreas Herrmann
2009-08-18 11:00 ` [PATCH 10/12] sched: Seperate out build of ALLNODES " Andreas Herrmann
2009-08-18 16:53 ` [tip:sched/domains] sched: Separate " tip-bot for Andreas Herrmann
2009-08-18 11:01 ` [PATCH 11/12] sched: Seperate out build of NUMA " Andreas Herrmann
2009-08-18 16:53 ` [tip:sched/domains] sched: Separate " tip-bot for Andreas Herrmann
2009-08-18 11:02 ` [PATCH 12/12] sched: Consolidate definition of variable sd in __build_sched_domains Andreas Herrmann
2009-08-18 16:54 ` [tip:sched/domains] " tip-bot for Andreas Herrmann
2009-08-18 11:16 ` [PATCH 0/12] cleanup __build_sched_domains() Ingo Molnar
2009-08-18 13:15 ` Andreas Herrmann
2009-08-18 13:25 ` Peter Zijlstra [this message]
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