From: riel@redhat.com
To: linux-kernel@vger.kernel.org
Cc: jhladky@redhat.com, mingo@kernel.org, mgorman@suse.de,
peterz@infradead.org
Subject: [PATCH 0/4] NUMA improvements with task wakeup and load balancing
Date: Fri, 23 Jun 2017 12:55:26 -0400 [thread overview]
Message-ID: <20170623165530.22514-1-riel@redhat.com> (raw)
With these patches, and Peter Zijlstra's select_idle_sibling
scalability improvement, Jirka has seen these performance
gains on a 4.11 kernel:
NAS shows improvements in range 20-100%
SPECjbb2005 shows improvements around 6-8% in the single instance mode
SPECjvm2008 - improvements around 10%
Unfortunately the full set of tests takes about a week to
run, so numbers are not broken out for individual patches.
We have done previous runs with other scheduler changes,
which did not work out - they showed improvements on some
workloads, and regressions on others.
4.11 performance still lags behind 3.10 for some workloads.
I am trying to figure out why, and close that gap.
Diffstat:
fair.c | 271 +++++++++++++++++++++--------------------------------------------
1 file changed, 88 insertions(+), 183 deletions(-)
next reply other threads:[~2017-06-23 16:55 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-23 16:55 riel [this message]
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 ` [PATCH 4/4] sched,fair: remove effective_load Rik van Riel
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