SMP system threading performance question
Abdullah Ibn Hamad Al-Marri
almarrie at gmail.com
Tue Feb 13 10:18:33 UTC 2007
On 2/13/07, Frank Altpeter <frank at altpeter.de> wrote:
> 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 ;)
-Abdullah Ibn Hamad Al-Marri
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