From: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@redhat.com>, Mike Galbraith <efault@gmx.de>,
Oleksiy Avramchenko <oleksiy.avramchenko@sonymobile.com>,
Paul Turner <pjt@google.com>, Oleg Nesterov <oleg@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Mike Galbraith <umgwanakikbuti@gmail.com>,
Kirill Tkhai <tkhai@yandex.ru>,
Tim Chen <tim.c.chen@linux.intel.com>,
Nicolas Pitre <nicolas.pitre@linaro.org>,
"Uladzislau Rezki (Sony)" <urezki@gmail.com>
Subject: [RFC][PATCH]: sched/fair: search a task from the tail of the queue
Date: Thu, 24 Aug 2017 12:44:44 +0200 [thread overview]
Message-ID: <20170824104445.16827-1-urezki@gmail.com> (raw)
Hi,
while doing a load balancing (plus active) if we change a direction
of task search we may benefit when it comes to performance. See below
results of running hackbench with following parameters: 1000 samples 40 groups
[1] ftp://vps418301.ovh.net/incoming/hackbench_40_groups_1000_samples_default_patched_i5-3320M.png
Uladzislau Rezki (1):
sched/fair: search a task from the tail of the queue
kernel/sched/fair.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--
2.11.0
next reply other threads:[~2017-08-24 10:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-24 10:44 Uladzislau Rezki (Sony) [this message]
2017-08-24 10:44 ` [RFC][PATCH]: sched/fair: search a task from the tail of the queue Uladzislau Rezki (Sony)
2017-08-24 17:46 ` Peter Zijlstra
2017-08-24 22:19 ` Uladzislau Rezki
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