Re: performance modifications
From: Claus Guttesen (cguttesen_at_yahoo.dk)
Date: 03/11/05
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Date: Fri, 11 Mar 2005 09:10:50 +0100 (CET) To: ray@redshift.com, freebsd-performance@freebsd.org
> I'm wondering if anyone on the list has a good
> source for the major sysctl
> settings and/or kernel settings that can be modified
> in order to bring up the
> performance level on a FreeBSD 5.3 machine that is
> used with apache under heavy
> load.
>
> I've done all the common stuff:
>
> recompiled the kernel and stripped out unused
> drivers
Did you try
options ACCEPT_FILTER_DATA
options ACCEPT_FILTER_HTTP
in your kernel? These options makes FreeBSD do the
3way-handshake rather than apache.
The usual
KeepAlive Off
in /usr/local/etc/apache/httpd.conf and
MaxClients xyz
in same file. Max-clients is computed by 'avail. ram /
size of one process', where you need to leave some
room for kernel, buffers etc. in avail. ram.
regards
Claus
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