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Mail Archives: cygwin-developers/1998/02/16/21:02:23

From: cgf AT bbc DOT com (Christopher Faylor)
Subject: Optimizing memset/memcpy/strcpy/etc.
16 Feb 1998 21:02:23 -0800 :
Message-ID: <EoIB4n.AJ9.cygnus.cygwin32.developers@bbc.com>
Reply-To: cygwin32-developers AT cygnus DOT com
To: cygwin32-developers AT cygnus DOT com

A recent post to the "other" mailing list suggested that using optimized
versions of some of the string and memory utilities might result in a
noticeable speed improvement in cygwin.

I tried that yesterday.  I pulled over the assembly versions of various
commonly used routines from glibc into a separate 'memory.c' file and
rebuilt Cygwin32.

I was disappointed to notice no noticeable speed improvement.  It's hard
to believe, but I really didn't see any difference in doing things like
compiling a file in winsup.

I guess that means that the most obvious speed improvement will probably
come from optimizing the loading of dlls (somehow), like Sergey has
suggested in the past.
-- 
http://www.bbc.com/	cgf AT bbc DOT com			"Strange how unreal
VMS=>UNIX Solutions	Boston Business Computing	 the real can be."

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