Gentoo Archives: gentoo-amd64

From: Brian Litzinger <brian@××××××××××××.com>
To: gentoo-amd64@l.g.o
Subject: Re: [gentoo-amd64] x86_64 optimization patches for glibc.
Date: Tue, 26 Jul 2005 02:55:55
Message-Id: 20050726025451.GA18145@localhost
In Reply to: Re: [gentoo-amd64] x86_64 optimization patches for glibc. by Luke-Jr
On Mon, Jul 25, 2005 at 10:24:46PM +0000, Luke-Jr wrote:
> On Saturday 23 July 2005 18:44, Brian Litzinger wrote: > > > On Sat, 2005-07-23 at 16:48 +0200, Simon Strandman wrote: > > > > Memory to memory copy rate = 1291.600098 MBytes / sec. Block size = > > > > Memory to memory copy rate = 2389.321777 MBytes / sec. Block size = > > Memory to memory copy rate = 1302.701782 MBytes / sec. Block size = > > Memory to memory copy rate = 2051.979980 MBytes / sec. Block size = > > Before: Memory to memory copy rate = 557.960449 MBytes / sec. Block size = > After: Memory to memory copy rate = 1120.773804 MBytes / sec. Block size = > > Anyone have a clue why I'm getting half what everyone else gets? o.O
One of the arguments to memcpy is the clock rate in MHz of *your* CPU. Did you adjust it appropriate for your system? -- Brian Litzinger -- gentoo-amd64@g.o mailing list