Date: Fri, 11 Sep 2009 14:08:54 +0200 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-questions@freebsd.org Subject: Re: reducing size of apache instances Message-ID: <h8dek8$tsa$1@ger.gmane.org> In-Reply-To: <4AA9BCF0.6040003@identry.com> References: <4AA9BCF0.6040003@identry.com>
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John Almberg wrote: > My Apache 2.2 instances are running about 18 Meg each. I've been > thinking about doing something to trim these down, and I think tomorrow > is the day to take action. They are getting out of hand. > > I've done a bit of research on this. I think the way to get started is > to eliminate unused modules. Problem is, I know which ones I need, since There is another thing you can try. Judging from the process size you've given it looks like you are not using PHP or a similar Apache module. Also, you didn't specify anything so I assume you are using the default configuration, which operates in "prefork" mode - MPM_PREFORK, which means a separate process is forked for every request. If all of this is true, you can trivially switch to the worker-threaded MPM in which every Apache process (which will be of comparable size to the one you currently have) will handle a large number of request. In effect, instead of e.g. 50 Apache processes active for 50 connections, you will have 2-3 Apache processes. Enable WITH_MPM=worker in /etc/make.conf to enable this.
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