Mailing-List: contact modperl-help@perl.apache.org; run by ezmlm
Precedence: bulk
Received-SPF: pass (nike.apache.org: domain of dietbuddha@gmail.com designates
 209.85.214.177 as permitted sender)
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=mime-version:in-reply-to:references:date:message-id:subject:from:to
         :cc:content-type:content-transfer-encoding;
        b=cCmIvBJLmlRTt/PfwMwJUlRlHdXzUO+9hwOY006WVVS55r8el18bg6xLFz5j3aNHQo
         sZ7jMhotUXOqL6LLLxYN1zOalQMmTEexg6ubjQSr+/Z4XCD7Gooc7af6ihFJuMs0EmWd
         mV0njkjpITCrlszqFA+zmjHeD6He1T0/MyDf8=
MIME-Version: 1.0
In-Reply-To: <60B45E866E9041479394DA873BDCCDFC@jt>
References: <60B45E866E9041479394DA873BDCCDFC@jt>
Date: Tue, 5 Oct 2010 23:49:01 -0700
Message-ID: <AANLkTik23_eqk1xqe9eNQQiZjf5M4ra0fiWWHH7Md5_c@mail.gmail.com>
Subject: Re: huge apache+mod_perl processes
From: William T <dietbuddha@gmail.com>
To: Eugene Toropov <jt@aaanet.ru>
Cc: modperl@perl.apache.org
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

If you don't have an unbounded growth issue it is likely do to some
library pulling in alot of dependencies or the creation/caching in
memory of some large data structure.  You can preload all the
offending libraries and see if that causes a jump in the initial
memory allocation for you apache procs.  If not you can create a
Handler that fires during cleanup/log phase to capture memory size
right after each access.

2010/9/29 Eugene Toropov <jt@aaanet.ru>:
> Greetings,
>
> We have a problem with huge Apache+mod_perl2 processes of 150-200 Mb in
> size. After apache restart they are usually 40-50 Mb in size, then in a
> minute grow up to 100-150 Mb=A0and then some time later may grow up to 20=
0 Mb.
> I suspect a certain type of http queries=A0and would like to know if ther=
e are
> any manuals/howtos/tools to investiagate such cases.
>
> # perl -v
> This is perl, v5.10.1 (*) built for x86_64-linux
> # strings /usr/local/apache2/modules/mod_perl.so | grep mod_perl\/
> mod_perl/2.0.4
> # /usr/local/apache2/bin/httpd -v
> Server version: Apache/2.2.14 (Unix)
>
> # pmap -x 8320
> 8320:=A0=A0 /usr/local/apache2/bin/httpd -DSSL
> Address=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Kbytes=A0=A0=A0=A0 RSS=A0=A0 Dirty =
Mode=A0=A0 Mapping
> 0000000000400000=A0=A0=A0=A0 584=A0=A0=A0=A0 496=A0=A0=A0=A0=A0=A0 0 r-x-=
-=A0 httpd
> 0000000000692000=A0=A0=A0=A0=A0 24=A0=A0=A0=A0=A0 20=A0=A0=A0=A0=A0 20 rw=
---=A0 httpd
> 0000000000698000=A0=A0=A0=A0=A0 12=A0=A0=A0=A0=A0=A0 8=A0=A0=A0=A0=A0=A0 =
8 rw---=A0=A0=A0 [ anon ]
> 0000000017c10000=A0 147640=A0 144612=A0 144608 rw---=A0=A0=A0 [ anon ]
> ....
> ----------------=A0 ------=A0 ------=A0 ------
> total kB=A0=A0=A0=A0=A0=A0=A0=A0=A0 352380=A0 156560=A0 151324
>
> # /usr/local/apache2/bin/httpd -l
> Compiled in modules:
> =A0 core.c
> =A0 mod_authn_file.c
> =A0 mod_authn_default.c
> =A0 mod_authz_host.c
> =A0 mod_authz_groupfile.c
> =A0 mod_authz_user.c
> =A0 mod_authz_default.c
> =A0 mod_auth_basic.c
> =A0 mod_include.c
> =A0 mod_filter.c
> =A0 mod_log_config.c
> =A0 mod_env.c
> =A0 mod_setenvif.c
> =A0 mod_version.c
> =A0 prefork.c
> =A0 http_core.c
> =A0 mod_mime.c
> =A0 mod_status.c
> =A0 mod_autoindex.c
> =A0 mod_asis.c
> =A0 mod_cgi.c
> =A0 mod_negotiation.c
> =A0 mod_dir.c
> =A0 mod_actions.c
> =A0 mod_userdir.c
> =A0 mod_alias.c
> =A0 mod_rewrite.c
> =A0 mod_so.c
> #
> Cheers
> Eugene