percona-discussion team mailing list archive

[Yasufumi Kinoshita <yasufumi.kinoshita@xxxxxxxxxxx>]

It may come from bug of innodb_sprit_buf_pool_mutex.patch
I have fixed it at revision 22 of extensions-1.0
Please check it again.

** Changed in: percona-xtradb
       Status: Confirmed => In Progress

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XtraDB has very irregular CPU-usage
https://bugs.launchpad.net/bugs/310656
You received this bug notification because you are a member of Percona
developers, which is the registrant for Percona-XtraDB.

Status in Percona XtraDB Storage Engine for MySQL: In Progress

Bug description:
If you look at graph with CPU usage in this post
http://www.mysqlperformanceblog.com/2008/12/18/xtradb-in-cpu-bound-benchmark/

you see XtraDB has very irregular CPU-usage, while -std and -plugin has
more uniform (with dip at flushing time).

Probably it is related to adaptive_checkpointing, please investigate the issue.