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From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To: "Sean C. Farley" <scf@FreeBSD.org>
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Date: Thu, 12 Jul 2007 22:51:15 +0200
In-Reply-To: <20070711183217.C2385@thor.farley.org> (Sean C. Farley's message
	of "Wed\, 11 Jul 2007 18\:43\:00 -0500 \(CDT\)")
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Cc: freebsd-arch@FreeBSD.org
Subject: Re: Assembly string functions in i386 libc
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"Sean C. Farley" <scf@FreeBSD.org> writes:
> On Wed, 11 Jul 2007, Matthew Dillon wrote:
> > Long ago I decided that strlen() was simply not in the critical
> > path for virtually any program.
> Since strlen() is used in every program directly or indirectly through
> libc, I thought it was beneficial to make it faster.

The first rule of optimization is: don't do it.
The second rule of optimization is: don't do it yet.
The third rule of optimization is: don't optimize what you haven't measured.

Can you show us an actual application that spends a significant part of
its run time in strlen()?

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no