From: Peter Zijlstra <peterz@infradead.org>
To: riel@redhat.com
Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, mgorman@suse.de,
chegu_vinod@hp.com
Subject: Re: [PATCH 2/4] sched,numa: weigh nearby nodes for task placement on complex NUMA topologies
Date: Fri, 9 May 2014 12:13:17 +0200 [thread overview]
Message-ID: <20140509101317.GU30445@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <1399569811-14362-3-git-send-email-riel@redhat.com>
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On Thu, May 08, 2014 at 01:23:29PM -0400, riel@redhat.com wrote:
> This patch does nothing on machines with simple NUMA topologies.
Was this:
> + /*
> + * No need to calculate a score if the system has a simple NUMA
> + * topology, with no node distances between "local" and "far away".
> + */
> + if (max_distance == LOCAL_DISTANCE)
> + return 0;
Supposed to make that true?
It doesn't. That test is a !numa test, not a fully connected test.
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next prev parent reply other threads:[~2014-05-09 10:13 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-08 17:23 [PATCH 0/4] sched,numa: task placement for complex NUMA topologies riel
2014-05-08 17:23 ` [PATCH 1/4] numa,x86: store maximum numa node distance riel
2014-05-09 9:45 ` Peter Zijlstra
2014-05-09 15:08 ` Rik van Riel
2014-05-08 17:23 ` [PATCH 2/4] sched,numa: weigh nearby nodes for task placement on complex NUMA topologies riel
2014-05-09 9:53 ` Peter Zijlstra
2014-05-09 15:14 ` Rik van Riel
2014-05-09 9:54 ` Peter Zijlstra
2014-05-09 10:03 ` Peter Zijlstra
2014-05-09 15:16 ` Rik van Riel
2014-05-09 10:11 ` Peter Zijlstra
2014-05-09 15:11 ` Rik van Riel
2014-05-09 10:13 ` Peter Zijlstra [this message]
2014-05-09 15:03 ` Rik van Riel
2014-05-08 17:23 ` [PATCH 3/4] sched,numa: store numa_group's preferred nid riel
2014-05-08 17:23 ` [PATCH 4/4] sched,numa: pull workloads towards their preferred nodes riel
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