Date: Tue, 2 Aug 2005 12:02:46 +0800 From: Xin LI <delphij@frontfree.net> To: freebsd-arch@FreeBSD.org, freebsd-amd64@FreeBSD.org Subject: Re: [RFC] Port of NetBSD's optimized amd64 string code Message-ID: <20050802040246.GB3799@frontfree.net> In-Reply-To: <20050802013916.GA37135@dragon.NUXI.org> References: <20050801182518.GA85423@frontfree.net> <20050802013916.GA37135@dragon.NUXI.org>
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--H+4ONPRPur6+Ovig Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Aug 01, 2005 at 06:39:16PM -0700, David O'Brien wrote: > On Tue, Aug 02, 2005 at 02:25:18AM +0800, Xin LI wrote: > > Here is a patchset that I have produced to make our libc aware of the > > NetBSD assembly implementation of the string related operations. >=20 > What performance benchmarks have these been thru? I'm stilling reading The "Software Optimization Guide for AMD Athlon64 and Opteron" and the disassembly output of latest GCC snapshot to see if we are on the right way. No benchmarks has been done yet, but I will at least test it on Athlon64 tonight to get some numbers, and if I can arrange a test on our Opteron box at company, I will do some benchmarks there, too. BTW. Would you please give me some hints on the benchmarking? I am not sure whether just looping the test cases on some determine dataset would be enough? Cheers, --=20 Xin LI <delphij frontfree net> http://www.delphij.net/ See complete headers for GPG key and other information. --H+4ONPRPur6+Ovig Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFC7vBm/cVsHxFZiIoRAjM2AJ9looDj9eeNKvMm4flnRzJ5eEPeIQCffe1T 2MWnE3syKiMLIla7S6UEENo= =2/BP -----END PGP SIGNATURE----- --H+4ONPRPur6+Ovig--
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