From: Nate Dog <nate@...>
Date: 2008-08-16T00:56:23+09:00
Subject: Re: Ruby 1.8.7 slower than 1.8.6?

Kornelius Kalnbach wrote:
> Akinori MUSHA wrote:
>> It is my pleasure to announce that Ruby 1.8.7 has just been released.
> thank you!
> 
> despite the claim of "some performance improvements" (are they
> documented anywhere?): tests with the CodeRay syntax highlighting
> library - which makes heavy use of StringScanner, Regexp and Hashes -
> run about 20-30% slower than they did with 1.8.6. is anybody else
> experiencing slowdowns, too? any ideas where to look for the bottleneck
> before I profile the whole thing?
> 
> [murphy]

I haven't found the bottleneck myself but yes, moving to ruby 1.8.7 has 
slowed down all my Ruby on Rails tests.  All together it now takes 100% 
longer.  I moved back to 1.8.6 put out by the mod_rails guys:

http://www.rubyenterpriseedition.com/

And the speed of the tests are back to normal.

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