Re: Apache 2 on FreeBSD 5.3
From: Clement Laforet (sheepkiller_at_cultdeadsheep.org)
Date: 02/04/05
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Date: Fri, 4 Feb 2005 15:41:12 +0100 To: Vladimir Vrzic <random@beotel.yu>
On Fri, Feb 04, 2005 at 10:56:21AM +0100, Vladimir Vrzic wrote:
> On a FreeBSD 5.3 web server with a very high load, I recently switched
> from Apache 1.3 and PHP 4.3 to using 2.0 with the prefork MPM and PHP 5.
> I noticed a drop in perfomance.
Did you find the bottleneck?
> What is currently the best (in terms of
> performance) choice for Apache w/ PHP on FreeBSD? Which MPM should I
> use? Does worker MPM use KSE on FreeBSD 5 and does it perform better
> than prefork? What about perchild and threadpool? Or maybe I should go
> back to Apache 1.3? Are there any sysctl or kernel tunings that I should
> use?
- Notes on MPM's: Currently, you can expect good performance with
prefork and worker. perchild is b0rked and threadpool is
experimental.
- Using apache2 with PHP is *safe* with prefork.
- worker MPM use KSE and performs well, with a custom apache2 (see
options for apache2 port), in some cases, worker MPM outperforms
prefork one.
- If you use apache2 in ports tree, you can try apr_poll() patch which
supports kqueue, define WITH_EXPERIMENTAL_PATCHES.
It's pretty stable and improves significantly apache reponsivness.
clem
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