> -----Original Message----- > From: maria-developers- > [email protected] [mailto:maria- > [email protected]] On > Behalf Of Axel Schwenke > Sent: Dienstag, 19. März 2013 15:45 > To: Michael Widenius; [email protected] > Subject: [Maria-developers] Benchmark of connect performance > > Hi, > > in the light of > http://yoshinorimatsunobu.blogspot.fi/2012/12/non-persistent-connection- > performance.html <skip> > The results don't match Yoshis otherwise. See yourself.
Historical remark on this, the patch for MDEV-3945, http://lists.askmonty.org/pipermail/commits/2012-December/003976.html ) was something that I did to reduce contention of the LOCK_thread_count in this benchmark. This patch was inspired by the said Yoshi's blog entry - he names holding lock during THD destructor (including freeing memory) as one of contention sources, and this was easy to fix. This patch made into 5.5.29 and I think could make big difference to prior versions (70%, or something in that range, I do not recall exact number I measured) - it could be interesting to compare to older version and see how much did it bring. _______________________________________________ Mailing list: https://launchpad.net/~maria-developers Post to : [email protected] Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
