From: "Albrecht Dreß" <albrecht.dress@arcor.de>
To: Kenneth Johansson <kenneth@southpole.se>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] powerpc: tiny memcpy_(to|from)io optimisation
Date: Wed, 03 Jun 2009 20:35:26 +0200 [thread overview]
Message-ID: <1244054133.3367.0@antares> (raw)
In-Reply-To: <1244039796.20864.48.camel@localhost.localdomain> (from kenneth@southpole.se on Wed Jun 3 16:36:36 2009)
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Am 03.06.09 16:36 schrieb(en) Kenneth Johansson:
> On an e300 core using the lwzu/stwu is about 20% faster so at least
> one core prefer that optimization.
Bingo. The '5200 on my test system has that core. So "-mcpu=603e"
should select this strategy!
Cheers, Albrecht.
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next prev parent reply other threads:[~2009-06-03 18:35 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-27 20:00 [PATCH] powerpc: tiny memcpy_(to|from)io optimisation Albrecht Dreß
2009-05-28 16:13 ` Joakim Tjernlund
2009-05-28 19:50 ` Albrecht Dreß
2009-05-29 6:31 ` Joakim Tjernlund
2009-05-31 10:11 ` Albrecht Dreß
2009-06-01 6:14 ` Joakim Tjernlund
2009-06-02 18:45 ` Albrecht Dreß
2009-06-02 22:51 ` Benjamin Herrenschmidt
2009-06-03 14:36 ` Kenneth Johansson
2009-06-03 18:35 ` Albrecht Dreß [this message]
2009-06-11 17:07 ` Wolfram Sang
2009-06-11 17:30 ` Grant Likely
2009-06-19 18:42 ` Lorenz Kolb
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