Re: [Maria-developers] [Commits] 7819ddb: MDEV-8192 - THD::set_command() takes 0.05% in OLTP RO

Hi, Sergey! On May 20, svoj@mariadb.org wrote:

revision-id: 7819ddb99be5dff26c8a2109ba70a54289a950ad parent(s): fcb48ee418959ea2c05d528266bb2dcad5bce46b committer: Sergey Vojtovich branch nick: mariadb timestamp: 2015-05-20 16:55:20 +0400 message:

MDEV-8192 - THD::set_command() takes 0.05% in OLTP RO

Moved THD::set_command() definition to sql_class.h so that it can be inlined.

ok

Call PSI_server::set_thread_command() conditionally: it is cheaper than calling dummy function when PFS is off (though it adds some overhead when PFS is on).

I'm not sure about it. P_S will be used more and more over time, let's not intentionally penalize it. Regards, Sergei