Hi, Sergey! On Jun 17, [email protected] wrote: > revision-id: 2e08ec24623e0b3d3db02333e16658dcfaa0535c > parent(s): b776f8d3a8afff55d5f8208da7bdfce9aa33eb39 > committer: Sergey Vojtovich > branch nick: mariadb > timestamp: 2015-06-17 13:09:22 +0400 > message: > > MDEV-7956 - handler::rebind_psi() takes 0.07% in OLTP RO > > Do not call handler::rebind_psi() and handler::unbind_psi() when performance > schema is compiled out. > > Overhead change: > handler::rebind_psi 0.04% -> out of radar > handler::unbind_psi 0.03% -> out of radar > open_table 0.21% -> 0.18% > close_thread_table 0.05% -> 0.05%
Really? I don't believe it. handler::rebind_psi() and handler::unbind_psi() are empty methods, not doing anything. There's only a cost a virtual function call. And you're saying that it took 15% of the open_table() execution time? Regards, Sergei _______________________________________________ Mailing list: https://launchpad.net/~maria-developers Post to : [email protected] Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
