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Forum Discussion

Austin_Geraci's avatar
Austin_Geraci
Icon for MVP rankMVP
Feb 05, 2010

One Vs for Redirects

This should be an easy one..     I want to use one VS for a bunch of redirects, a catch all of sorts.. If for some reason this is a bad idea just let me know.     The redirect on...
application delivery
dev
devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Mar 04, 2010
We'd discussed the efficiency of using string operators on strings in this post, and seen some mixed results:

 

 

Efficiency of String Comparison

 

http://devcentral.f5.com/Default.aspx?tabid=53&forumid=5&tpage=1&view=topic&postid=1144749

 

 

I just tried testing again with the time command in tclsh, and it does seem more efficient to use eq/ne to compare strings that aren't the same. I'll try testing again in an iRule at some point.

 

 

As for TCL references, I find the man pages on http://www.tcl.tk/man/tcl8.4/TclCmd/X.htm (where X is the command name) and the wiki pages on http://wiki.tcl.tk to be very useful. Because much of the advanced functionality of TCL is disabled for iRules, the main complexity is generally with the F5 specific functionality. So I've found the forum posts and iRule wiki pages to be more useful than books for iRules.

 

 

If you find any gems elsewhere, it would be great if you could write about them here.

 

 

Thanks,

 

Aaron