FCGI process handling and fine-tunning for saving CPU, under Perl code

Hello Folks

You guys are my last hope to get these answers, as I've searched all over the Net and couldn´t find them anywhere. Not even in perlmonks (actually my post has being answered by people saying they too want to find out this). I´ve checked your messages, but I´ve seen the examples are mostly on C, and unfortunatelly I´m not familiar with it, so I will count you to help me on the Unix-related issues, and that there are also Perl coders among you, to help me about the Perl-related ones.

Here´s the problem: I´ve finally made FCGI (and also CGI::Fast, but not mod_perl, as my host doesn´t support it) work at my shared account. But just can´t figure out how to handle it, I mean, how do I restart the processes when I update the script code? How do I know the number of the process?? 

My main goal with FCGI is to save precious CPU minutes, as the traffic is increasing a lot (and my host will kick me out if I get too heavy-processing, as they just dont have dedicated servers available). You guys know if the CPU savings are worth adapting the code? I mean, can I expect to use, like, 30% less CPU? 

Also, I´ve heard there is 'static' and other kinds of configs, and I´m not sure of what they are, and how to change and fine tune them, in order I don´t end up increasing my CPU usage(!!!). 

And, last but not least, I am not quite sure about converting guidelines, like avoiding referencing $q (new CGI) inside subs and all. If you can offer me some links for that, it would be great too.

I wait for your help then! 

Thanks a lot 

phoenix_fly

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