SMP system threading performance question

[Abdullah Ibn Hamad Al-Marri]

On 2/13/07, Frank Altpeter <frank at altpeter.de> wrote:

<snip>
> The problem is quite disturbing, since that machine hosts a mysql database
> which is performing low because half of the cpu power is not used at all.
> I recompiled it with WITH_PROC_SCOPE_PTH=YES and with
> WITH_LINUXTHREADS=YES but both didn't help, so i assume some OS related
> reason for this to happen.
>
>
> Happy for any hints,
>
>
>         Frank Altpeter

You better use libthr with the MySQL instead of linuxthreads, and
don't use HTT with FreeBSD since it hurts the performance.

For more info about it check http://wiki.freebsd.org/MySQL

Also check how to use it with libmap.conf to make mysql uses libthr as well.

Good luck with it ;)

-- 
Regards,

-Abdullah Ibn Hamad Al-Marri
Arab Portal
http://www.WeArab.Net/