percona-discussion team mailing list archive

[Vadim Tkachenko <vadim@xxxxxxxxxxx>]

MARK,

Never looked into memory functions in details, this is something to 
check, definitely.

As for checksum, if you disable innodb_checksum=0 you can get visible 
performance benefit, so there can be better algorithm to handle it.


MARK CALLAGHAN wrote:
> Have you seen this bug report?
> http://bugs.mysql.com/bug.php?id=19975
>
> Also, have you done any experiments with the page checksum method for
> InnoDB to make it faster or to change the algorithm and I realize that
> changing the algorithm has a huge impact on deployed servers. Once you
> begin doing a lot of IO on fast SSD systems, you will burn a lot of
> CPU time doing checksum validation.


--
Vadim Tkachenko, CTO
Percona Inc.
ICQ: 369-510-335, Skype: vadimtk153, Phone +1-888-401-3403
MySQL Performance Blog - http://www.mysqlperformanceblog.com
MySQL Consulting http://www.percona.com/