From: Roger Pack <rogerdpack2@...>
Date: 2010-02-19T00:58:59+09:00
Subject: [ruby-core:28227] Re: [Bug #2723] $: length affects re-require time 	of already loaded files

> The Kernel#require docs say: 'A feature will not be loaded if it�s name already appears in $"."'. However, re-requiring the same file still scans all the load paths in $: even if the file will not be loaded.
>
> This is exceedingly problematic on Windows, where stat()ing the list of all paths becomes very slow very quickly:

You may be interested in a utility I had been hacking on

http://github.com/rdp/faster_require
(caches require'd file locations across runs for a much faster startup time)
thought I'd agree it doesn't fix the root of the problem (whatever
that may be)...

I'd say hack up a patch and people can discuss it.

-rp