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

Started bykernel test robot <xiaolong.ye@intel.com>
First post2016-06-06 08:20 +0200
Last post2016-06-06 08:20 +0200
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  [lkp] [locking/rwsem] 133e89ef5e: +12.6% improvement of  vm-scalability.throughput kernel test robot <xiaolong.ye@intel.com> - 2016-06-06 08:20 +0200

#1414669 — [lkp] [locking/rwsem] 133e89ef5e: +12.6% improvement of vm-scalability.throughput

Fromkernel test robot <xiaolong.ye@intel.com>
Date2016-06-06 08:20 +0200
Subject[lkp] [locking/rwsem] 133e89ef5e: +12.6% improvement of vm-scalability.throughput
Message-ID<rGW3g-17P-31@gated-at.bofh.it>

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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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