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From Perrin Harkins <>
Subject Re: Modperl2 question
Date Mon, 13 Mar 2006 04:21:38 GMT
Foo Ji-Haw wrote:
> That's odd. I thought I remembered reading up about discouraging the use 
> of the CGI module in optimising modperl.
> The rationale (if I remembered right) is that CGI depends on the %ENV, 
> which populating it for every call is an effort. The recommended way is 
> to turn of SetupEnv, and grab as much stuff from Apache2::RequestRec as 
> possible.

Sure, libapreq and its included modules are the fastest way to parse 
parameters and handle cookies.  However, hardly anyone needs that speed. 
  Most people are spending all of their time talking to a database or 
doing other I/O tasks, or have pretty minimal web traffic, or both.

If you're writing something new, and you don't care about supporting 
CGI, and you want to use the fastest option, by all means give libapreq 
a try.  For most people though, it won't make any measurable difference 
which one you use.  I wouldn't advise anyone to bother changing 
code unless they've run a profiler and seen it show up high enough to 

It's easy to get caught up in optimizing tiny things that won't make a 
noticeable difference, instead of working on things that will really 
count.  Don't fall into that trap.

- Perrin

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