[weilies]

hi all, i hv a situation like this in my site

a.pl

$a = 4;
...
if (...) {
# a bunch of time consuming process
}
$b = 5;
...
# end the code

so, i hv a script which may make my visitor suffer from long waitng time when they fall into the "if " section. so i plan to make whatever inside the "if" into a background process, which wil straight away come to code:"$b=5;", and trigger the server to perform the "if" section in batch/shell, whatever background process which wil make no waiting time, so, any suggestion? coz i m kinda new to background process, but i do know bout CGI,web program


Thanks

[curbview.com]

Originally Posted by weilies

hi all, i hv a situation like this in my site

a.pl


so, i hv a script which may make my visitor suffer from long waitng time when they fall into the "if " section. so i plan to make whatever inside the "if" into a background process, which wil straight away come to code:"$b=5;", and trigger the server to perform the "if" section in batch/shell, whatever background process which wil make no waiting time, so, any suggestion? coz i m kinda new to background process, but i do know bout CGI,web program


Thanks

Sounds like you need to re-write some code instead of putting the if process into the background. This is really important if the person will still have to wait for the "background" process to complete its job and allow the the visitor to continue...

Have you actually benchmarked the code? If so, show the results.
Are you sure that the "if" statement is what slows your script down?
What size is your script?
What version on Perl is your code designed for?

In all honesty, without actual code, anything could be causing your script to have slow performance.

[weilies]

actually the "if" block is to perform some sort of non-critical process, i m dealing with the online advertising, the situation like this

- once the visitor click on the banner, it wil trigger the script click.pl?aid=123..., then our sys wil track, then add a record for aid=123 to db after some validation on ip and certain rules. then continue let the visitor proceed to the next line of the code.

- but becoz the click.pl would be trigger quite offtenly, and we stil hope the visitor can continue proceed to the next line, means the "if" block NEVER block the visitor from proceed in whatever situation. but an "amount" of waiting time there when the click.pl trigger many times in a short amount of time.

so we hope to switch the current validation to background process instead of foreground

Thanks

[schmiddy]

Hi,

It sounds like you might be looking forPerl's fork.

I haven't used it myself, and don't have experience doing the sort of low-level system programming that would require using fork, so can't help you out much more than that. Good luck.