From: Ben Pfaff <blp@cs.stanford.edu>
To: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Re-implemented i586 asm AES (updated)
Date: Fri, 06 Aug 2004 10:17:43 -0700 [thread overview]
Message-ID: <87ekmkw5hk.fsf@benpfaff.org> (raw)
In-Reply-To: Pine.LNX.4.58.0408060941550.24588@ppc970.osdl.org
Linus Torvalds <torvalds@osdl.org> writes:
> On Fri, 6 Aug 2004, Andi Kleen wrote:
>>
>> You could use .altinstructions to patch a jump in at runtime
>> based on CPU capabilities. Assuming MMX is really faster of course.
>
> I seriously doubt that the MMX code could be faster.
For what it's worth, about a year about I tested both Gladman's
MMX and non-MMX code on a Pentium 4. The non-MMX code was
consistently significantly faster in every scenario I could come
up with.
--
I love deadlines.
I love the whooshing noise they make as they go by.
--Douglas Adams
next prev parent reply other threads:[~2004-08-06 17:28 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <2qbyt-1Op-45@gated-at.bofh.it>
[not found] ` <2qemF-3Pj-49@gated-at.bofh.it>
2004-08-06 15:09 ` [PATCH] Re-implemented i586 asm AES (updated) Andi Kleen
2004-08-06 16:17 ` James Morris
2004-08-06 16:38 ` David Woodhouse
2004-08-06 16:44 ` Jörn Engel
2004-08-06 16:43 ` Linus Torvalds
2004-08-06 17:17 ` Ben Pfaff [this message]
2004-08-07 7:49 ` Kasper Sandberg
2004-08-07 20:26 ` Andi Kleen
2004-08-09 19:38 ` dean gaudet
2004-08-06 12:00 [PATCH] Re-implemented i586 asm AES Marc Ballarin
2004-08-06 14:52 ` [PATCH] Re-implemented i586 asm AES (updated) James Morris
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