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From allan juul <>
Subject [users@httpd] RewriteMap prg vs cgi performance
Date Thu, 25 Aug 2005 23:28:19 GMT

i'm in doubt whether to use a perl cgi script or a perl program via 
mod_rewrite because of performance.

the actual processing is handling a client certificate and some xml and 
returning a base64-encoded string. processing takes less than a second 
but let's say it takes exactly one second

if the site gets 10 simultaneously requests for a cgi it will start 10 
perl interpreters (i guess) and all requests should be handled within a 

but what happens if the site gets 10 simultaneously requests for a URI 
that is handled by a perl program via mod_rewrite? like:


i know theres only one perl interpreter started at server startup and it 
listens on STDIN - but does that mean it will handle the 10 request one 
by one? i mean, in this example it would appear to take 10 seconds for 
the last request?


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