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From Ian Holsman <i...@apache.org>
Subject Re: Perchild on Solaris (was: Perchild works again.... kind of)
Date Tue, 20 Aug 2002 03:29:16 GMT
Tsuyoshi SASAMOTO wrote:
> On Solaris, this macro definition is required to build successfully:
>   -D_XOPEN_SOURCE=500 -D__EXTENSIONS__
> 
> By the way, with the perchild MPM, httpd performance is
> "T2 (alternate) thread lib < T1 (default) thread lib".
when I was speaking to the sun people they said that in order to get 
better performance with the Solaris9(t2) threading we need to bind the 
processes to individual CPU's.
> 
> http://groups.google.com/groups?selm=3c7681a8.0207152237.2b9a4ec4@posting.google.com
> 
> By contrast, with the worker MPM, "T2 thread lib > T1 thread lib"
> (But the difference is smaller than the perchild MPM).
> 
some comments..
the stats seems high.. make sure you have the:
	Options FollowSymLinks
	AllowOverrides none
specified
also try 'AcceptMutex pthread' this worked better for my tests.
there may be some other things, but I would need to see your config file.

> With the perchild MPM and the T2 thread lib, mutex contention
> may cause performance penalty, I guess...
> 
> 
> Tsuyoshi SASAMOTO
> nazonazo@super.win.ne.jp
> 



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