[mapserver-users] Scalability and Mapscript running PHP as a module NOT CGI

[Mark Cave-Ayland]

Hi everyone,

What is the current state of Mapscript being used as when running PHP 
as an Apache module instead of a CGI (see
http://mapserver.gis.umn.edu/cgi-bin/wiki.pl?PHPMapScriptCGI for 
more info)?

Currently we are looking at a system that can support 500 simultaneous 
users without a problem. From what I 
understand, the performance would be increased substantially running 
as a module as there is no need to launch a new process when 
executing the PHP script. If it is not yet supported in this configuration, 
would the CGI version scale to 500 users on a single machine (how 
many maps per second have people managed to obtain on various 
hardware etc.), and if not, how much work would be required to make 
the necessary modifications to Mapscript to run with PHP as a module 
to get the best performance possible?


Cheers,

Mark.