← Back to team overview

maria-developers team mailing list archive

Re: Group commit comparison between mysql and mariadb


FYI we migrated from MariaDB group commit to Oracle group commit and
attempted to keep the MariaDB testcases, unfortunately without
group_commit and group_commit_binlog_pos for now. Then from our
perspective the difference in the implementations was the following:

http://bugs.mysql.com/bug.php?id=68929 (cosmetical)
http://bugs.mysql.com/bug.php?id=68932 (IMHO serious)
http://bugs.mysql.com/bug.php?id=68953 (IMHO serious, fixed in 5.6.12).

The fact that we didn't port all the testcases is

2013/6/11 Sergei Petrunia <psergey@xxxxxxxxxxxx>:
> Hi Kristian,
> I'm wondering, do we have any comparison of MariaDB's binlog group commit
> implementation vs MySQL's binlog's group commit? I recall Mats writing a blog
> about the differences last year, but he didn't have the code back then. I'm
> wondering if Oracle had implemented what he described, or did something else...
> I understand that in order to do benchmark we need to finish merging InnoDB
> from MySQL 5.6 into MariaDB 10.0.  One can't benchmark group commit per se, it
> is tied to innodb.
> Do we still have any clue, before the merge happens? Btw, what should the
> merge do - take group commit from MariaDB or from MySQL?
> BR
>  Sergei
> --
> Sergei Petrunia, Software Developer
> Monty Program AB, http://askmonty.org
> Blog: http://s.petrunia.net/blog
> _______________________________________________
> Mailing list: https://launchpad.net/~maria-developers
> Post to     : maria-developers@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~maria-developers
> More help   : https://help.launchpad.net/ListHelp