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From: Peter Zijlstra <peterz@infradead.org>
To: Mel Gorman <mgorman@suse.de>
Cc: Thomas Hellstrom <thellstrom@vmware.com>,
	Rik van Riel <riel@redhat.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] sched: Calculate effective load even if local weight is 0
Date: Mon, 6 Jan 2014 13:35:19 +0100
Message-ID: <20140106123519.GK31570@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20140106113912.GC6178@suse.de>

On Mon, Jan 06, 2014 at 11:39:12AM +0000, Mel Gorman wrote:
> wake_affine uses a weight of 0 for sync wakeups on the grounds that it
> is assuming the waking task will sleep and not contribute to load in the
> near future. In this case, we still want to calculate the effective load
> of the sched entity hierarchy. As effective_load is no longer used by
> task_numa_compare since commit fb13c7ee (sched/numa: Use a system-wide
> search to find swap/migration candidates), this patch simply restores the
> historical behaviour.

Urgh.. yeah. We should merge this. Rik you ok with me adding a from and
sob from you?

  parent reply index

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-06 11:39 Mel Gorman
2014-01-06 12:34 ` Peter Zijlstra
2014-01-06 13:09   ` Mel Gorman
2014-01-06 12:35 ` Peter Zijlstra [this message]
2014-01-06 14:00   ` Rik van Riel
2014-01-12 18:42 ` [tip:sched/urgent] " tip-bot for Rik van Riel
2014-01-13  7:52 ` [PATCH] " Preeti Murthy
2014-01-17 14:56   ` Mel Gorman

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