From: Rik van Riel <riel@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org, jhladky@redhat.com,
mingo@kernel.org, mgorman@suse.de
Subject: Re: [PATCH 4/4] sched,fair: remove effective_load
Date: Tue, 27 Jun 2017 14:27:42 -0400 [thread overview]
Message-ID: <1498588062.20270.116.camel@redhat.com> (raw)
In-Reply-To: <20170626161250.GD4941@worktop>
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On Mon, 2017-06-26 at 18:12 +0200, Peter Zijlstra wrote:
> Also note that your use of task_h_load() in the new numa thing
> suffers
> from exactly the problem effective_load() is trying to solve.
Thinking about this some more, I suspect that
using effective_load() in combination with
select_idle_sibling(), which will often place
the task on a different CPU than the one specified,
may not lead to entirely useful results...
--
All rights reversed
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prev parent reply other threads:[~2017-06-27 18:27 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-23 16:55 [PATCH 0/4] NUMA improvements with task wakeup and load balancing riel
2017-06-23 16:55 ` [PATCH 1/4] sched,numa: override part of migrate_degrades_locality when idle balancing riel
2017-06-24 6:58 ` Ingo Molnar
2017-06-24 23:45 ` Rik van Riel
2017-06-24 7:22 ` [tip:sched/core] sched/numa: Override part of migrate_degrades_locality() " tip-bot for Rik van Riel
2017-06-23 16:55 ` [PATCH 2/4] sched: simplify wake_affine for single socket case riel
2017-06-24 7:22 ` [tip:sched/core] sched/fair: Simplify wake_affine() for the " tip-bot for Rik van Riel
2017-06-23 16:55 ` [PATCH 3/4] sched,numa: implement numa node level wake_affine riel
2017-06-24 7:23 ` [tip:sched/core] sched/numa: Implement NUMA node level wake_affine() tip-bot for Rik van Riel
2017-06-26 14:43 ` [PATCH 3/4] sched,numa: implement numa node level wake_affine Peter Zijlstra
2017-06-23 16:55 ` [PATCH 4/4] sched,fair: remove effective_load riel
2017-06-24 7:23 ` [tip:sched/core] sched/fair: Remove effective_load() tip-bot for Rik van Riel
2017-06-26 14:44 ` [PATCH 4/4] sched,fair: remove effective_load Peter Zijlstra
2017-06-26 14:46 ` Peter Zijlstra
2017-06-26 14:55 ` Rik van Riel
2017-06-26 15:04 ` Peter Zijlstra
2017-06-26 15:20 ` Rik van Riel
2017-06-26 16:12 ` Peter Zijlstra
2017-06-26 19:34 ` Rik van Riel
2017-06-27 5:39 ` Peter Zijlstra
2017-06-27 14:55 ` Rik van Riel
2017-08-01 12:19 ` [PATCH] sched/fair: Fix wake_affine() for !NUMA_BALANCING Peter Zijlstra
2017-08-01 19:26 ` Josef Bacik
2017-08-01 21:43 ` Peter Zijlstra
2017-08-24 22:29 ` Chris Wilson
2017-08-25 15:46 ` Chris Wilson
2017-06-27 18:27 ` Rik van Riel [this message]
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