Date: Thu, 05 Feb 2009 00:32:44 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-stable@freebsd.org Subject: Re: Free memory after upgrade to 7.1 Message-ID: <gmd8jg$a0n$1@ger.gmane.org> In-Reply-To: <4989BD92.9010506@max.af.czu.cz.cz> References: <4989BD92.9010506@max.af.czu.cz.cz>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigF8A5EF4FE2C14D5F7210A4D4 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Tomas Randa wrote: > Hello, >=20 > 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: >=20 > 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 F= ree > Swap: 4096M Total, 105M Used, 3991M Free, 2% Inuse >=20 > then apachectl graceful >=20 > 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 >=20 > Some graph: http://max.af.czu.cz/memoryload.png Please interpret this graph. When did you upgrade FreeBSD? On the 27th? What are the dips on the 30th and 2nd? Apache restarts? > I know before upgrade was memory using about 2,5GB, now much more, > apache sometimes crash. Please post several lines from "top" describing the processes you think are using up memory. For what it's worth, I have a similar situation: i386/PAE, upgraded from 7.0 to 7.1 on a machine with 4 GB RAM (3 GB accessible without PAE). I see no anomalies, *but* I'm using FastCGI with PHP and apache22-worker. I think this is the major change in malloc between 7.0 and 7.1: http://svn.freebsd.org/viewvc/base?view=3Drevision&revision=3D184602 You can test if it's the cause of your problem by toggling between 'D' and 'M' options to malloc.conf (see malloc(3), don't forget to restart apache). --------------enigF8A5EF4FE2C14D5F7210A4D4 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkmKJaQACgkQldnAQVacBchWfgCfWDitjEqp++CN0rdY9F5mdS6x qoMAn1oVGIjhbuc7BpLpHGY9OJ1ktEdj =Yn2Y -----END PGP SIGNATURE----- --------------enigF8A5EF4FE2C14D5F7210A4D4--
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