From: Roger Pack <rogerdpack2@...>
Date: 2010-06-23T00:48:04+09:00
Subject: [ruby-core:30861] Re: requires in 1.9 are slower...

>>> Rubygems?

I was using gem_prelude for both, so that wasn't the cause...I guess, at least.

>> Before Rubygems, I would suspect the bytecode (or whatever it's called in
>> YARV) generation.
>
> And the fact that all IO in 1.9.[12] seems to be about twice as slow
> (or more) than in 1.8.[67]? �(Mostly due to (unoptimized) encoding
> handling, I suppose.)

Interesting.  Those both might be good clues that I hadn't thought of.
Thanks!
-rp