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Posted to users@httpd.apache.org by Arunkumar Janarthanan <ar...@gmail.com> on 2010/05/14 07:10:41 UTC
[users@httpd] Help !!! Apache HTTP process consumes high memory usage
Hi,
I have build an Apache instance 2.2.15 with prefork MPM and most of the
modules as shared. I have PHP and MYSQL installed and configured on this
machine (MYSQL client) with this every process created by Apache daemon
consumes 280M memory almost for each call.
I am running on RHEL 5 with 5 Gig of memory when load increases on server it
takes down the machine. Also I could see each library getting called thrice
makes the HTTPD daemon heavy weight.
Please advice how could I trim down the memory consumption by each process.
00002ba99ca0f000 8K rw--- /usr/lib64/php/modules/mysql.so
00002ba99ca2c000 1220K r-x-- /usr/lib64/mysql/libmysqlclient.so.16.0.0
00002ba99cb5d000 2044K ----- /usr/lib64/mysql/libmysqlclient.so.16.0.0
00002ba99cd5c000 308K rw--- /usr/lib64/mysql/libmysqlclient.so.16.0.0
00002ba99cda9000 4K rw--- [ anon ]
00002ba99cdaa000 104K r-x-- /usr/lib64/php/modules/mysqli.so
00002ba99cdc4000 2044K ----- /usr/lib64/php/modules/mysqli.so
00002ba99cfc3000 12K rw--- /usr/lib64/php/modules/mysqli.so
00002ba99cfc6000 4K rw--- [ anon ]
00002ba99cfc7000 88K r-x-- /usr/lib64/php/modules/pdo.so
00002ba99cfdd000 2048K ----- /usr/lib64/php/modules/pdo.so
00002ba99d1dd000 12K rw--- /usr/lib64/php/modules/pdo.so
00002ba99d1e0000 24K r-x-- /usr/lib64/php/modules/pdo_mysql.so
00002ba99d1e6000 2048K ----- /usr/lib64/php/modules/pdo_mysql.so
00002ba99d3e6000 4K rw--- /usr/lib64/php/modules/pdo_mysql.so
00002ba99d3e7000 20K r-x-- /usr/lib64/php/modules/pdo_sqlite.so
00002ba99d3ec000 2048K ----- /usr/lib64/php/modules/pdo_sqlite.so
00002ba99d5ec000 4K rw--- /usr/lib64/php/modules/pdo_sqlite.so
00002ba99d608000 356K r-x-- /usr/lib64/libsqlite3.so.0.8.6
00002ba99d661000 2044K ----- /usr/lib64/libsqlite3.so.0.8.6
00002ba99d860000 12K rw--- /usr/lib64/libsqlite3.so.0.8.6
00002ba99d863000 300K r-x-- /usr/lib64/php/modules/soap.so
00002ba99d8ae000 2044K ----- /usr/lib64/php/modules/soap.so
00002ba99daad000 12K rw--- /usr/lib64/php/modules/soap.so
00002ba99dab0000 64K r-x-- /usr/lib64/php/modules/sqlite.so
00002ba99dac0000 2044K ----- /usr/lib64/php/modules/sqlite.so
00002ba99dcbf000 8K rw--- /usr/lib64/php/modules/sqlite.so
00002ba99dcdc000 284K r-x-- /usr/lib64/libsqlite.so.0.8.6
00002ba99dd23000 2044K ----- /usr/lib64/libsqlite.so.0.8.6
00002ba99df22000 12K rw--- /usr/lib64/libsqlite.so.0.8.6
00002ba99df25000 28K r-x-- /usr/lib64/php/modules/wddx.so
00002ba99df2c000 2048K ----- /usr/lib64/php/modules/wddx.so
00002ba99e12c000 4K rw--- /usr/lib64/php/modules/wddx.so
00002ba99e12d000 28K r-x-- /usr/lib64/php/modules/xmlreader.so
00002ba99e134000 2044K ----- /usr/lib64/php/modules/xmlreader.so
00002ba99e333000 8K rw--- /usr/lib64/php/modules/xmlreader.so
00002ba99e335000 84K r-x-- /usr/lib64/php/modules/xmlrpc.so
00002ba99e34a000 2048K ----- /usr/lib64/php/modules/xmlrpc.so
00002ba99e54a000 4K rw--- /usr/lib64/php/modules/xmlrpc.so
00002ba99e54b000 28K r-x-- /usr/lib64/php/modules/xmlwriter.so
00002ba99e552000 2044K ----- /usr/lib64/php/modules/xmlwriter.so
00002ba99e751000 8K rw--- /usr/lib64/php/modules/xmlwriter.so
00002ba99e753000 28K r-x-- /usr/lib64/php/modules/xsl.so
00002ba99e75a000 2044K ----- /usr/lib64/php/modules/xsl.so
00002ba99e959000 4K rw--- /usr/lib64/php/modules/xsl.so
00002ba99e95a000 68K r-x-- /usr/lib64/php/modules/zip.so
00002ba99e96b000 2044K ----- /usr/lib64/php/modules/zip.so
00002ba99eb6a000 8K rw--- /usr/lib64/php/modules/zip.so
00007fff7f412000 136K rw--- [ stack ]
ffffffffff600000 8192K ----- [ anon ]
total 287324K
Best Regards,
Arun J
Re: [users@httpd] Re: Help !!! Apache HTTP process consumes high
memory usage
Posted by Igor Galić <i....@brainsware.org>.
----- "Arunkumar Janarthanan" <ar...@gmail.com> wrote:
> I could see its most of them from PHP and its components.
[snip]
>
> On Fri, May 14, 2010 at 1:10 AM, Arunkumar Janarthanan <
> arunkumar.webadmin@gmail.com > wrote:
>
>
> Hi,
>
> I have build an Apache instance 2.2.15 with prefork MPM and most of
> the modules as shared. I have PHP and MYSQL installed and configured
> on this machine (MYSQL client) with this every process created by
> Apache daemon consumes 280M memory almost for each call.
>
> I am running on RHEL 5 with 5 Gig of memory when load increases on
> server it takes down the machine. Also I could see each library
> getting called thrice makes the HTTPD daemon heavy weight.
>
> Please advice how could I trim down the memory consumption by each
> process.
>
[snip]
Looking at my Fedora config, I see that the default MaxRequestsPerChild is 4000
which can be considered a pretty good value for running PHP.
That would've been my first shot (if on RHEL 5 that value is higher, or 0, consider
changing it: http://httpd.apache.org/docs/2.2/mpm.html )
Next off is that you should consider running PHP accelerated. See: http://pecl.php.net/APC
Also, your application is also a good candidate for memory consumption.
Take a look at my writeup on that topic: http://blag.esotericsystems.at/2010/01/php-memory-abuse/
> Best Regards,
> Arun J
So long,
--
Igor Galić
Tel: +43 (0) 699 122 96 338
Fax: +43(0) 1 91 333 41
Mail: i.galic@brainsware.org
URL: http://brainsware.org/
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[users@httpd] Re: Help !!! Apache HTTP process consumes high memory usage
Posted by Arunkumar Janarthanan <ar...@gmail.com>.
I could see its most of them from PHP and its components.
00002ba99536f000 3168K r-x-- /usr/lib64/httpd/modules/libphp5.so
00002ba995687000 2048K ----- /usr/lib64/httpd/modules/libphp5.so
00002ba995887000 288K rw--- /usr/lib64/httpd/modules/libphp5.so
00002ba99a751000 56K r-x-- /usr/lib64/php/modules/curl.so
00002ba99a75f000 2044K ----- /usr/lib64/php/modules/curl.so
00002ba99a95e000 8K rw--- /usr/lib64/php/modules/curl.so
00002ba99a960000 28K r-x-- /usr/lib64/php/modules/dbase.so
00002ba99a967000 2048K ----- /usr/lib64/php/modules/dbase.so
00002ba99ab67000 4K rw--- /usr/lib64/php/modules/dbase.so
00002ba99ab68000 156K r-x-- /usr/lib64/php/modules/dom.so
00002ba99ab8f000 2044K ----- /usr/lib64/php/modules/dom.so
00002ba99ad8e000 24K rw--- /usr/lib64/php/modules/dom.so
00002ba99ad95000 348K r-x-- /usr/lib64/php/modules/gd.so
00002ba99adec000 2048K ----- /usr/lib64/php/modules/gd.so
00002ba99afec000 28K rw--- /usr/lib64/php/modules/gd.so
00002ba99b52f000 28K r-x-- /usr/lib64/php/modules/json.so
00002ba99b536000 2044K ----- /usr/lib64/php/modules/json.so
00002ba99b735000 4K rw--- /usr/lib64/php/modules/json.so
00002ba99b736000 44K r-x-- /usr/lib64/php/modules/ldap.so
00002ba99b741000 2044K ----- /usr/lib64/php/modules/ldap.so
00002ba99b940000 4K rw--- /usr/lib64/php/modules/ldap.so
00002ba99bda4000 1944K r-x-- /usr/lib64/php/modules/mbstring.so
00002ba99bf8a000 2048K ----- /usr/lib64/php/modules/mbstring.so
00002ba99c18a000 36K rw--- /usr/lib64/php/modules/mbstring.so
00002ba99c193000 32K r-x-- /usr/lib64/php/modules/mcrypt.so
00002ba99c19b000 2048K ----- /usr/lib64/php/modules/mcrypt.so
00002ba99c39b000 4K rw--- /usr/lib64/php/modules/mcrypt.so
00002ba99c5ef000 84K r-x-- /usr/lib64/php/modules/memcache.so
00002ba99c604000 2044K ----- /usr/lib64/php/modules/memcache.so
00002ba99c803000 8K rw--- /usr/lib64/php/modules/memcache.so
00002ba99c805000 44K r-x-- /usr/lib64/php/modules/mysql.so
00002ba99c810000 2044K ----- /usr/lib64/php/modules/mysql.so
00002ba99ca0f000 8K rw--- /usr/lib64/php/modules/mysql.so
00002ba99cdaa000 104K r-x-- /usr/lib64/php/modules/mysqli.so
00002ba99cdc4000 2044K ----- /usr/lib64/php/modules/mysqli.so
00002ba99cfc3000 12K rw--- /usr/lib64/php/modules/mysqli.so
00002ba99cfc7000 88K r-x-- /usr/lib64/php/modules/pdo.so
00002ba99cfdd000 2048K ----- /usr/lib64/php/modules/pdo.so
00002ba99d1dd000 12K rw--- /usr/lib64/php/modules/pdo.so
00002ba99d1e0000 24K r-x-- /usr/lib64/php/modules/pdo_mysql.so
00002ba99d1e6000 2048K ----- /usr/lib64/php/modules/pdo_mysql.so
00002ba99d3e6000 4K rw--- /usr/lib64/php/modules/pdo_mysql.so
00002ba99d3e7000 20K r-x-- /usr/lib64/php/modules/pdo_sqlite.so
00002ba99d3ec000 2048K ----- /usr/lib64/php/modules/pdo_sqlite.so
00002ba99d5ec000 4K rw--- /usr/lib64/php/modules/pdo_sqlite.so
00002ba99d863000 300K r-x-- /usr/lib64/php/modules/soap.so
00002ba99d8ae000 2044K ----- /usr/lib64/php/modules/soap.so
00002ba99daad000 12K rw--- /usr/lib64/php/modules/soap.so
00002ba99dab0000 64K r-x-- /usr/lib64/php/modules/sqlite.so
00002ba99dac0000 2044K ----- /usr/lib64/php/modules/sqlite.so
00002ba99dcbf000 8K rw--- /usr/lib64/php/modules/sqlite.so
00002ba99df25000 28K r-x-- /usr/lib64/php/modules/wddx.so
00002ba99df2c000 2048K ----- /usr/lib64/php/modules/wddx.so
00002ba99e12c000 4K rw--- /usr/lib64/php/modules/wddx.so
00002ba99e12d000 28K r-x-- /usr/lib64/php/modules/xmlreader.so
00002ba99e134000 2044K ----- /usr/lib64/php/modules/xmlreader.so
00002ba99e333000 8K rw--- /usr/lib64/php/modules/xmlreader.so
00002ba99e335000 84K r-x-- /usr/lib64/php/modules/xmlrpc.so
00002ba99e34a000 2048K ----- /usr/lib64/php/modules/xmlrpc.so
00002ba99e54a000 4K rw--- /usr/lib64/php/modules/xmlrpc.so
00002ba99e54b000 28K r-x-- /usr/lib64/php/modules/xmlwriter.so
00002ba99e552000 2044K ----- /usr/lib64/php/modules/xmlwriter.so
00002ba99e751000 8K rw--- /usr/lib64/php/modules/xmlwriter.so
00002ba99e753000 28K r-x-- /usr/lib64/php/modules/xsl.so
00002ba99e75a000 2044K ----- /usr/lib64/php/modules/xsl.so
00002ba99e959000 4K rw--- /usr/lib64/php/modules/xsl.so
00002ba99e95a000 68K r-x-- /usr/lib64/php/modules/zip.so
00002ba99e96b000 2044K ----- /usr/lib64/php/modules/zip.so
00002ba99eb6a000 8K rw--- /usr/lib64/php/modules/zip.so
On Fri, May 14, 2010 at 1:10 AM, Arunkumar Janarthanan <
arunkumar.webadmin@gmail.com> wrote:
> Hi,
>
> I have build an Apache instance 2.2.15 with prefork MPM and most of the
> modules as shared. I have PHP and MYSQL installed and configured on this
> machine (MYSQL client) with this every process created by Apache daemon
> consumes 280M memory almost for each call.
>
> I am running on RHEL 5 with 5 Gig of memory when load increases on server
> it takes down the machine. Also I could see each library getting called
> thrice makes the HTTPD daemon heavy weight.
>
> Please advice how could I trim down the memory consumption by each process.
>
> 00002ba99ca0f000 8K rw--- /usr/lib64/php/modules/mysql.so
> 00002ba99ca2c000 1220K r-x-- /usr/lib64/mysql/libmysqlclient.so.16.0.0
> 00002ba99cb5d000 2044K ----- /usr/lib64/mysql/libmysqlclient.so.16.0.0
> 00002ba99cd5c000 308K rw--- /usr/lib64/mysql/libmysqlclient.so.16.0.0
> 00002ba99cda9000 4K rw--- [ anon ]
> 00002ba99cdaa000 104K r-x-- /usr/lib64/php/modules/mysqli.so
> 00002ba99cdc4000 2044K ----- /usr/lib64/php/modules/mysqli.so
> 00002ba99cfc3000 12K rw--- /usr/lib64/php/modules/mysqli.so
> 00002ba99cfc6000 4K rw--- [ anon ]
> 00002ba99cfc7000 88K r-x-- /usr/lib64/php/modules/pdo.so
> 00002ba99cfdd000 2048K ----- /usr/lib64/php/modules/pdo.so
> 00002ba99d1dd000 12K rw--- /usr/lib64/php/modules/pdo.so
> 00002ba99d1e0000 24K r-x-- /usr/lib64/php/modules/pdo_mysql.so
> 00002ba99d1e6000 2048K ----- /usr/lib64/php/modules/pdo_mysql.so
> 00002ba99d3e6000 4K rw--- /usr/lib64/php/modules/pdo_mysql.so
> 00002ba99d3e7000 20K r-x-- /usr/lib64/php/modules/pdo_sqlite.so
> 00002ba99d3ec000 2048K ----- /usr/lib64/php/modules/pdo_sqlite.so
> 00002ba99d5ec000 4K rw--- /usr/lib64/php/modules/pdo_sqlite.so
> 00002ba99d608000 356K r-x-- /usr/lib64/libsqlite3.so.0.8.6
> 00002ba99d661000 2044K ----- /usr/lib64/libsqlite3.so.0.8.6
> 00002ba99d860000 12K rw--- /usr/lib64/libsqlite3.so.0.8.6
> 00002ba99d863000 300K r-x-- /usr/lib64/php/modules/soap.so
> 00002ba99d8ae000 2044K ----- /usr/lib64/php/modules/soap.so
> 00002ba99daad000 12K rw--- /usr/lib64/php/modules/soap.so
> 00002ba99dab0000 64K r-x-- /usr/lib64/php/modules/sqlite.so
> 00002ba99dac0000 2044K ----- /usr/lib64/php/modules/sqlite.so
> 00002ba99dcbf000 8K rw--- /usr/lib64/php/modules/sqlite.so
> 00002ba99dcdc000 284K r-x-- /usr/lib64/libsqlite.so.0.8.6
> 00002ba99dd23000 2044K ----- /usr/lib64/libsqlite.so.0.8.6
> 00002ba99df22000 12K rw--- /usr/lib64/libsqlite.so.0.8.6
> 00002ba99df25000 28K r-x-- /usr/lib64/php/modules/wddx.so
> 00002ba99df2c000 2048K ----- /usr/lib64/php/modules/wddx.so
> 00002ba99e12c000 4K rw--- /usr/lib64/php/modules/wddx.so
> 00002ba99e12d000 28K r-x-- /usr/lib64/php/modules/xmlreader.so
> 00002ba99e134000 2044K ----- /usr/lib64/php/modules/xmlreader.so
> 00002ba99e333000 8K rw--- /usr/lib64/php/modules/xmlreader.so
> 00002ba99e335000 84K r-x-- /usr/lib64/php/modules/xmlrpc.so
> 00002ba99e34a000 2048K ----- /usr/lib64/php/modules/xmlrpc.so
> 00002ba99e54a000 4K rw--- /usr/lib64/php/modules/xmlrpc.so
> 00002ba99e54b000 28K r-x-- /usr/lib64/php/modules/xmlwriter.so
> 00002ba99e552000 2044K ----- /usr/lib64/php/modules/xmlwriter.so
> 00002ba99e751000 8K rw--- /usr/lib64/php/modules/xmlwriter.so
> 00002ba99e753000 28K r-x-- /usr/lib64/php/modules/xsl.so
> 00002ba99e75a000 2044K ----- /usr/lib64/php/modules/xsl.so
> 00002ba99e959000 4K rw--- /usr/lib64/php/modules/xsl.so
> 00002ba99e95a000 68K r-x-- /usr/lib64/php/modules/zip.so
> 00002ba99e96b000 2044K ----- /usr/lib64/php/modules/zip.so
> 00002ba99eb6a000 8K rw--- /usr/lib64/php/modules/zip.so
> 00007fff7f412000 136K rw--- [ stack ]
> ffffffffff600000 8192K ----- [ anon ]
> total 287324K
>
> Best Regards,
> Arun J
>