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From MATSUMOTO Ryosuke <matsu1...@gmail.com>
Subject Re: PHP script is running very slowly when using Apache PHP module
Date Thu, 20 Oct 2011 09:57:16 GMT
Hi Fiona,

example

strace -f /etc/init.d/httpd restart

2011/10/20 Vincenzo D'Amore <v.damore@gmail.com>:
> 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
>



-- 
MATSUMOTO Ryosuke < matsu1229 at gmail.com >
http://blog.matsumoto-r.jp/

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