On Tue, Jun 03, 2014 at 04:20:25PM +0800, Colin Charles wrote: > Hi all, > > Recently there was chat about how PERFORMANCE_SCHEMA was enabled by mistake > and it should be disabled in the 10.0 series. I'm curious - how many of you > are using PERFORMANCE_SCHEMA? Is it a problem to turn it on, if you use it? > > I'm referring to: > https://mariadb.atlassian.net/browse/MDEV-6249 > > Looking from the webscalesql list, there are examples of performance > degradation: > https://groups.google.com/d/msg/webscalesql/B-4bPIb8mHI/eUNsl0lSfbMJ > https://groups.google.com/d/msg/webscalesql/B-4bPIb8mHI/-YZMMCuPw3QJ > > quote: "Our perf testing agrees with your assessment (we see about a 5%-6% > perf hit when it's included and on, and a 2%-3% hit when it's included but > off)" > > Please discuss this, either here or on MDEV-6249 >
I have P_S enabled even for production servers even with no settings at all, If needed I can easy turn on instrumentations without restarting the server. Coze restarting a server in production ..... /me P_S fanboy -- über den grenzen muß die freiheit wohl wolkenlos sein _______________________________________________ Mailing list: https://launchpad.net/~maria-discuss Post to : maria-discuss@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-discuss More help : https://help.launchpad.net/ListHelp
