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Date:      Wed, 04 Feb 2009 17:01:27 +0000
From:      Tom Evans <tevans.uk@googlemail.com>
To:        Tomas Randa <freebsd@max.af.czu.cz.cz>
Cc:        stable@freebsd.org
Subject:   Re: Free memory after upgrade to 7.1
Message-ID:  <1233766887.43076.18.camel@strangepork.mintel.co.uk>
In-Reply-To: <4989BD92.9010506@max.af.czu.cz.cz>
References:  <4989BD92.9010506@max.af.czu.cz.cz>

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On Wed, 2009-02-04 at 17:08 +0100, Tomas Randa wrote:
> Hello,
> 
> I have i386/PAE system (php, apache22, mysql) running on 7-STABLE and I 
> can see strange behavior after upgrade from 7.0: Apache does not free 
> memory, for example:
> 
> CPU: 31.2% user, 0.0% nice, 12.8% system, 0.7% interrupt, 55.3% idle
> Mem: 3520M Active, 3705M Inact, 465M Wired, 314M Cache, 112M Buf, 12M Free
> Swap: 4096M Total, 105M Used, 3991M Free, 2% Inuse
> 
> then apachectl graceful
> 
> CPU: 28.3% user, 0.0% nice, 8.6% system, 0.0% interrupt, 63.1% idle
> Mem: 631M Active, 3126M Inact, 353M Wired, 213M Cache, 112M Buf, 3693M Free
> Swap: 4096M Total, 1844K Used, 4094M Free
> 
> Some graph: http://max.af.czu.cz/memoryload.png
> 
> I know before upgrade was memory using about 2,5GB, now much more, 
> apache sometimes crash.
> 
> Thanks for some help
> 
> Tomas Randa

What is apache doing to use so much memory? This looks more like a
memory leak in PHP, which is reclaimed after apache restarts its
children.

When you upgraded the OS, did you also upgrade ports? Could a new
version of PHP be at fault here?

Cheers

Tom




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