Hi Sergei, On Sat, Mar 01, 2014 at 07:47:07PM +0100, Sergei Golubchik wrote: > Hi, Sergey! > > On Feb 27, Sergey Vojtovich wrote: > > At lp:maria/10.0 > > > > ------------------------------------------------------------ > > revno: 4011 > > revision-id: [email protected] > > parent: [email protected] > > committer: Sergey Vojtovich <[email protected]> > > branch nick: 10.0 > > timestamp: Thu 2014-02-27 18:15:21 +0400 > > message: > > MDEV-5755 - Scalability: let LOCK_open and THR_LOCK::mutex be normal > > mutexes > > > > Normal mutexes scale better than adaptive at high thread count. > > At low thread count they behave similarly. > > To summarize Axel results: > at low concurency normal can be ~1% slower. > at high concurrency r/o - normal are up to 25% faster. > at high concurrency r/w - normal are up to 10% slower. > > That last result bothers me a litte. Indeed. I'll check with Axel about it. Thanks for pointing it out!
Thanks, Sergey _______________________________________________ Mailing list: https://launchpad.net/~maria-developers Post to : [email protected] Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
