* Davi Arnaut <Davi.Arnaut@stripped> [08/09/30 22:21]:
> 2746 Davi Arnaut 2008-09-30
> Bug#35164: Large number of invalid pthread_attr_setschedparam calls
> Bug#37536: Thread scheduling causes performance degradation at low thread
> Deprecated --skip-thread-priority startup option as newer version of
> the server won't change the thread priorities by default.
> Giving threads different priorities might yield marginal improvements
> in some platforms (where it actually works) but on the other hand it
> might cause significant degradation depending on the thread count and
> number of processors. Meddling with the thread priorities is a not a
> safe bet as it is very dependent on the behavior of the cpu scheduler
> and system where MySQL is being run.
> From MySQL 6.0 and up the default behavior is that of not modifying
> the threads priorities.
OK to push.