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Eduardo_Saito_1's avatar
Eduardo_Saito_1
Icon for Nimbostratus rankNimbostratus
Dec 11, 2007

Regex taking 1% CPU - How to minimize CPU Load?

Hello Eveybody.         I'have an iRule that is working ok, but there is a regex thjat is taking 1% CPU on a 6400 BIG-IP.       How Can I minimize CPU load?       Here is ...
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hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Dec 11, 2007
Hi Eduardo,

 

 

A regex will eat up CPU no matter how streamlined you get it. You can probably save a bit of CPU time by escaping the periods with a backslash:

 

 

http://image\.domain\.com/[a-zA-Z0-9/._-]+

 

 

Depending on what you want to do with the image references, you might be able to replace the regexp with a stream profile. What are you actually doing with the indices once you get them?

 

 

Aaron