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From Michael Gale <mich...@bluesuperman.com>
Subject Re: [users@httpd] VirtualHost and Memory Consumption
Date Sun, 18 Jan 2004 03:57:37 GMT

Also ... why do you need 6058 virtual host ? all on one server ? 

Michael.

On Fri, 16 Jan 2004 22:52:27 -0500
Aaron W Morris <aaronmorris@mindspring.com> wrote:

> Adi Linden wrote:
> 
> > Hi,
> > 
> > I am running a server with many VirtualHost sections (6058 right
> > now). Each httpd process on the server starts out with using about
> > 61MB of memory. If the VirtualHosts are removed, httpd uses only
> > about 3MB, much more reasonable.
> > 
> > How can I host this many VirtualHosts on a single server without
> > having such significant memory usage per process?
> > 
> > Thanks,
> > Adi
> 
> 
> Each process is probably not taking 61MB each.  The problem with top
> and ps is it does not take into account shared memory.  Some of that
> memory is being shared between processes.
> 
> If you are using linux, the best way to see how much memory is really 
> being used (at startup) is shutdown the instances and look at the 2nd 
> number under the used column in the "free" command.  Start apache and 
> look at the number again.  Take the difference and you should have 
> reasonable idea of how much memory apache is using.
> 
> NOTE:  Don't look at the first number in the used column....that 
> includes file cache and some miscellaneous items.  On a well utilized 
> server, this number will almost always be 100% of memory.
> 
> 
> -- 
> Aaron W Morris <aaronmorris@mindspring.com> (decep)
> 
> 
> 
> 
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-- 
Hand over the Slackware CD's and back AWAY from the computer, your geek
rights have been revoked !!!

Michael Gale
Slackware user :)
Bluesuperman.com 

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