From: Devin Mullins <twifkak@...>
Date: 2006-09-07T14:37:39+09:00
Subject: Re: Benchmarking (Was: Re: Compiling Regexp only once)

>> Interesting. Note that this is different from your benchmark in  
>> ruby-talk:204747, wherein much of the savings seems to come from  not 
>> having to instantiate & populate a MatchData. Compare:
> 
> Vastly different. He's calling scan/split instead of s =~ //. s =~ //  
> is the fastest way to invoke a match as you avoid the method dispatch  
> altogether.

Hurh?

I'll admit up front that I'm absolutely clueless about benchmarking, but 
didn't my last bench show that most of the savings with s =~ // doesn't 
have to do with the method dispatch, but with MatchData?

(Sadly, in retrospect, it lacked any comparisons of the various ways to 
*reference* a regex -- literal, constant, etc. -- which was the meat of 
the bench to which I was responding. Oh well. Sleepyhead..)

Devin