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LP #1108701: Sysbench performance regression due to commit 410 (bitmap)

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**Reported in Launchpad by Roel Van de Paar last update 22-02-2014 04:17:22

http://jenkins.percona.com/view/QA/job/percona-server-5.5-qa-performance/plot/?

Percona-Server-5.5.28-rel29.3-409.Linux.x86_64 - measured performance:

RO This Run: 92549488
RW This Run: 75982562

Percona-Server-5.5.28-rel29.3-410.Linux.x86_64 - measured performance:

RO This Run: 87594976 | RO Factor: .94 (94%)
RW This Run: 74172726 | RW Factor: .97 (97%)

Drop of 6% in Read, 3% in Write performance on simple sysbench run.

If needed, for details on how sysbench is executed, please pull lp:percona-qa and check performance.sh (and this script can also be used for local performance runs with a bit of tweaking)

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lpjirasync January 22, 2018 at 10:41 PM

**Comment from Launchpad by: Launchpad Janitor on: 22-02-2014 04:17:21

[Expired for Percona Server 5.6 because there has been no activity for 60 days.]

lpjirasync January 22, 2018 at 10:41 PM

**Comment from Launchpad by: Launchpad Janitor on: 22-02-2014 04:17:18

[Expired for Percona Server 5.5 because there has been no activity for 60 days.]

lpjirasync January 22, 2018 at 10:41 PM

**Comment from Launchpad by: Laurynas Biveinis on: 23-12-2013 07:59:21

Not sure how to proceed with this one. In 5.5, the commit was reviewed thoroughly short of breaking up it to smaller bits, that analysis did not turn up any promising leads, and now we have 200 commits on the top. 5.6 was extensively benchmarked recently. I'm leaning towards marking this as Incomplete.

lpjirasync January 22, 2018 at 10:41 PM

**Comment from Launchpad by: Valerii Kravchuk on: 21-12-2013 15:37:23

Not sure if this affects 5.6 as well, but I see no easy way to check anyway.

lpjirasync January 22, 2018 at 10:41 PM

**Comment from Launchpad by: Laurynas Biveinis on: 14-05-2013 04:14:54

Although most likely its cause is unrelated.

Done

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Created January 22, 2018 at 10:41 PM
Updated January 22, 2018 at 10:41 PM
Resolved January 22, 2018 at 10:41 PM

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