Hello Alexey Serbin, Kudu Jenkins,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/3496
to look at the new patch set (#3).
Change subject: locks: add new read-write mutex
......................................................................
locks: add new read-write mutex
The new mutex is a thin wrapper around pthread read/write locks. It has no
features of which to speak: no debugging hooks, no optimizations, nothing.
Take these rwlock-perf results with a grain of salt; they only test
read/read contention, not read/write or write/write contention. The values
are millions of cycles.
num_threads laptop_old laptop_new ve0518_old ve0518_new
-------------------------------------------------------
1 261 83 189 82
2 1604 644 914 730
3 1504 917 2204 1567
4 2398 1792 3185 2162
5 3210 2179 3943 2308
6 4070 2696 4135 2515
7 4741 3253 4557 2732
8 5457 3853 5114 3145
Change-Id: I5462e69291fb9498ebd4aaa1728c64658667aa4b
---
M src/kudu/experiments/rwlock-perf.cc
M src/kudu/util/CMakeLists.txt
M src/kudu/util/mutex.cc
A src/kudu/util/rw_mutex.cc
A src/kudu/util/rw_mutex.h
5 files changed, 122 insertions(+), 5 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/96/3496/3
--
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I5462e69291fb9498ebd4aaa1728c64658667aa4b
Gerrit-PatchSet: 3
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Adar Dembo <a...@cloudera.com>
Gerrit-Reviewer: Adar Dembo <a...@cloudera.com>
Gerrit-Reviewer: Alexey Serbin <aser...@cloudera.com>
Gerrit-Reviewer: Dan Burkert <d...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Todd Lipcon <t...@apache.org>
