linux-kernel - Re: x86 memcpy performance

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Message-ID: <4E496AF5.1030200@zytor.com>
Date:	Mon, 15 Aug 2011 11:52:37 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andrew Lutomirski <luto@....edu>
CC:	Borislav Petkov <bp@...en8.de>,
	melwyn lobo <linux.melwyn@...il.com>,
	Denys Vlasenko <vda.linux@...glemail.com>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	borislav.petkov@....com
Subject: Re: x86 memcpy performance

On 08/15/2011 11:35 AM, Andrew Lutomirski wrote:
> 
> Are there any architecture-neutral users of this thing?

Look at the RAID-6 code, for example.  It makes the various
architecture-specific codes look more similar.

	-hpa
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