Apache ITK tuning

Advice RE Apache ITK

Initial checking shows that ITK (non-threaded) can be as efficient as a threaded Apache provided there is enough RAM.

 

Looking at:

http://www.zarafa.com/wiki/index.php/Apache_tuning we see:

 

‘If you have the RAM available and start enough spare workers processes then the advantages of mpm_worker are limited’

 

Initial points:

 

  • With enough RAM and good configuration the performance of ITK should be OK

  • ITK is much safer in that it can handle any type of PHP extension.

  • Although ITK needs to start out as a root process this is only really an issue if using HTTPS.

 

Another useful point is at:

 

http://www.monitis.com/blog/2011/07/05/25-apache-performance-tuning-tips/

 

which says:

 

23. Don’t use threaded mpm with mod_php – look at using mod_itk, mod_php tends to segfault with threaded mpm.

 

Security

Apache ITK could be run behind a proxy to possibly increase security.

Settings to tune

 

A useful looking resource is at:

http://www.monitis.com/blog/2011/07/05/25-apache-performance-tuning-tips/

 

This might be a starting list of settings to tune:

 

  • StartServers

  • MinSpareServers

  • MaxSpareServers

  • ServerLimit

  • MaxClients

  • MaxRequestsPerChild

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