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From "Vincenzo D'Amore" <v.dam...@gmail.com>
Subject Re: PHP script is running very slowly when using Apache PHP module
Date Thu, 20 Oct 2011 08:32:50 GMT
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.sisk@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
>
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>
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>
>
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-- 
Vincenzo D'Amore
email: v.damore@gmail.com
msn: freedev@hotmail.com
skype: free.dev
mobile: +39 349 8513251

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