linux-kernel - [lkp] [locking/rwsem] 133e89ef5e: +12.6% improvement of vm-scalability.throughput

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Date:	Mon, 6 Jun 2016 14:11:21 +0800
From:	kernel test robot <xiaolong.ye@...el.com>
To:	Davidlohr Bueso <dave@...olabs.net>
Cc:	LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [lkp] [locking/rwsem] 133e89ef5e: +12.6% improvement of
 vm-scalability.throughput


FYI, we noticed a +12.6% improvement of vm-scalability.throughput due to commit:

commit 133e89ef5ef338e1358b16246521ba17d935c396 ("locking/rwsem: Enable lockless waiter wakeup(s)")
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking/core

in testcase: vm-scalability
on test machine: lkp-bdw-ex2: 160 threads Broadwell-EX with 512G memory
with following parameters: cpufreq_governor=performance/runtime=300s/test=small-allocs-mt


Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.


Thanks,
Xiaolong

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