Hello Fiona, have you tried to strace apache process ?
Take a look at this: http://httpd.apache.org/dev/debugging.html On Mon, Oct 17, 2011 at 6:49 PM, Fiona Sisk <fiona.s...@gosnetworks.com>wrote: > Hi, > > I have a problem with the Apache PHP module and am hoping for some pointers > on how to investigate it. > > I have written a PHP extension that is called by a PHP script. > I use PHP as a module of Apache ( 1.3.37 or 2.2.19, I've tried both). > * > LoadModule php5_module libexec/apache/libphp5.so* > > I'm getting very slow response times from my PHP script. (approx 1 minute) > > However it is only when I run it as an Apache module that the problem > manifests itself. > If I run the PHP script /PHP extension on the command-line i.e. not as a > module of Apache the time it takes is negligible. > > > The PHP (5.3.4) extension crunches a lot of data from a DB and eventually > produces one very large PHP array. > which is returned to the client as JSON in the HTTP $_POST response ( Also > gzip compression of the HTTP contents is used.) > (In JSON format, the size of the array is 3.7M) > > I didn't have any problems with the application until recently when the > size > of the data I'm requesting has increased dramatically. > > So it seems that I need to do some 'module' tuning of Apache but I don't > know how. I have already changed these parameters in > the php.ini to make the extension work. I include some relevant looking > httpd.conf parameters also below. I haven't touched any of these. > > max_execution_time = 60 ( 'cos the PHP script execution was timing out > before the extension finished!) > memory_limit = 256M > > > Any suggestions.? Please bear in mind that I'm not trying to write a Apache > module, just figure out what my performance > problems are when using a very common one. > > Thanks in advance. > Fiona > > ScoreBoardFile /var/run/httpd.scoreboard ( doesn't exist on my Linux > machine) > Timeout 300 > KeepAlive On > MaxKeepAliveRequests 100 > KeepAliveTimeout 15 > MinSpareServers 5 > MaxSpareServers 10 > StartServers 5 > MaxClients 150 > MaxRequestsPerChild 0 > LoadModule vhost_alias_module libexec/apache/mod_vhost_alias.so > LoadModule env_module libexec/apache/mod_env.so > LoadModule define_module libexec/apache/mod_define.so > LoadModule config_log_module libexec/apache/mod_log_config.so > LoadModule mime_magic_module libexec/apache/mod_mime_magic.so > LoadModule mime_module libexec/apache/mod_mime.so > LoadModule negotiation_module libexec/apache/mod_negotiation.so > LoadModule status_module libexec/apache/mod_status.so > LoadModule info_module libexec/apache/mod_info.so > LoadModule includes_module libexec/apache/mod_include.so > LoadModule autoindex_module libexec/apache/mod_autoindex.so > LoadModule dir_module libexec/apache/mod_dir.so > LoadModule cgi_module libexec/apache/mod_cgi.so > LoadModule asis_module libexec/apache/mod_asis.so > LoadModule imap_module libexec/apache/mod_imap.so > LoadModule action_module libexec/apache/mod_actions.so > LoadModule speling_module libexec/apache/mod_speling.so > LoadModule userdir_module libexec/apache/mod_userdir.so > LoadModule alias_module libexec/apache/mod_alias.so > LoadModule rewrite_module libexec/apache/mod_rewrite.so > LoadModule access_module libexec/apache/mod_access.so > LoadModule auth_module libexec/apache/mod_auth.so > LoadModule anon_auth_module libexec/apache/mod_auth_anon.so > LoadModule dbm_auth_module libexec/apache/mod_auth_dbm.so > LoadModule digest_module libexec/apache/mod_digest.so > LoadModule proxy_module libexec/apache/libproxy.so > LoadModule cern_meta_module libexec/apache/mod_cern_meta.so > LoadModule expires_module libexec/apache/mod_expires.so > LoadModule headers_module libexec/apache/mod_headers.so > LoadModule usertrack_module libexec/apache/mod_usertrack.so > LoadModule log_forensic_module libexec/apache/mod_log_forensic.so > LoadModule unique_id_module libexec/apache/mod_unique_id.so > LoadModule setenvif_module libexec/apache/mod_setenvif.so > LoadModule php5_module libexec/apache/libphp5.so > > GOS Networks Limited, National Software Centre, Mahon, Cork, Ireland. > > Registered company number: 445828 > > > The information in this email is confidential and may be legally > privileged. > It is intended solely for the addressee. Access to this email by anyone > else > is unauthorised. If you are not the intended recipient, any disclosure, > copying, distribution or any action taken or omitted to be taken in > reliance > on it, is prohibited and may be unlawful. When addressed to our clients any > opinions or advice contained in this email are subject to the terms and > conditions expressed in the governing GOS Networks agreement. > > -- Vincenzo D'Amore email: v.dam...@gmail.com msn: free...@hotmail.com skype: free.dev mobile: +39 349 8513251
