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From: Lynn Schaper <schaper@Colorado.EDU>
Message-Id: <200306031748.h53Hmnk3016417@petrie.colorado.edu>
To: users@httpd.apache.org
Date: Tue, 3 Jun 2003 11:48:49 -0600 (MDT)
In-Reply-To: <no.id> from "Saunders Jack" at Jun 03, 2003 09:46:54 AM
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Subject: Re: [users@httpd] Slow performance issues

If you're not setting MaxRequestsPerChild on Solaris, you probably
should be.  If you are using it, it might be set too high.

- Look at your server-status and see how many requests each busy child
has served when your server slows down; set MaxRequestsPerChild below
that.

- You might also look at the memory footprint of your servers (top is a
good tool) and if they're getting large, kill them before they grow that
big (also with MaxRequestsPerChild).

Lynn
--
    Lynn Schaper                        Schaper@colorado.edu
    Information Technology Services     Central and Unix Services     
    University of Colorado at Boulder   303-492-3872

> I have recently added another apache instance on a solaris 2.6 and 2.8 =
> servers.  We reverse proxy to several servers over SSL.  The performance =
> seems to degrade over time.  I have checked the child processes and the =
> count is normally at 26.  I am also using the built in SSLRandomSeed.  =
> So I would not think it had to do with the random device.  After =
> restarting apache performance picks up again. The first instance of =
> apache was compiled the same way and I donot seem to notice the same =
> problems.  Any help will be greatly appreciated!
> =20
> The servers were compiled like so:
> =20
> BUILDHOME=3D"/export/home/appladm/install"
> CFLAGS=3D"${CFLAGS} -DUSE_SYSVSEM_SERIALIZED_ACCEPT"
> PATH=3D/usr/bin:/usr/local/bin:/usr/ccs/bin:/usr/sbin:/sbin:.
> =20
> export CFLAGS PATH
> =20
> # set build params
> =20
> APACHEVER=3D"1.3.19"
> MODSSLVER=3D"2.8.3"
> OPENSSLVER=3D"0.9.6g"
> =20
> # build files
> =20
> echo "starting build"
> =20
> cd $BUILDHOME/mod_ssl-${MODSSLVER}-${APACHEVER}/
> ./configure \
>         --with-apache=3D../apache_$APACHEVER \
>         --with-ssl=3D../openssl-$OPENSSLVER \
>         --prefix=3D/usr/local/apache-mack \
>         --enable-module=3Dso              \
>         --enable-module=3Dproxy           \
>         --enable-shared=3Dssl             \
>         --enable-shared=3Dmax
> =20
> #
> echo "modssl prep. work done"
> =20
> 
> # build apache
> cd $BUILDHOME/apache_${APACHEVER}/
> make
> =20
> echo "apache build done"

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