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.webad...@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 >