From: Roger Pack <redmine@...>
Date: 2010-02-07T06:16:45+09:00
Subject: [ruby-core:28090] [Bug #1332] Reading file on Windows is 500x slower then with previous Ruby version

Issue #1332 has been updated by Roger Pack.


Appears that 
1) the writes have slowed down, "only" by about 100% (take twice as long to write in ascii 1.9 as in 1.8). Not terrible.

2) the reads have slowed down by something like 40000% (!)

I think to avoid the slowdown with reads you can "hack a work around" like

c = File.open('out.file','rb') { |f| f.read }
c.gsub!("\r\n", "\n")

But this seems like there might be a bug in there, too.

-rp
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