Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot
 
PerlMonks  

Re: How to optimize CPU and Memory usage?

by davido (Archbishop)
on Nov 23, 2013 at 16:55 UTC ( #1064046=note: print w/ replies, xml ) Need Help??


in reply to How to optimize CPU and Memory usage?

Do you have memory leaks? They're harder to come by in Perl code than in a language like C or C++, though still possible. It's pretty old, but there is Devel::LeakTrace, if you believe you have one you need to track down. For me sometimes a first step is to create a test that puts a module through a lot of iterations, and then just observe "top". Old fashioned, but low effort. If that turns up anything interesting, then I spend the time to dig deeper. The two most common sources of memory leaks in Perl are circular references, and buggy XS code.

As for CPU optimization, profile first (Devel::NYTProf), and if you really do have a problem somewhere, then you can Benchmark alternatives.


Dave


Comment on Re: How to optimize CPU and Memory usage?
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1064046]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (8)
As of 2015-07-28 10:10 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (254 votes), past polls