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From: Paul Mackerras <paulus@samba.org>
To: Gunnar von Boehn <VONBOEHN@de.ibm.com>
Cc: Mark Nelson <markn@au1.ibm.com>,
	linuxppc-dev@ozlabs.org, Michael Ellerman <ellerman@au1.ibm.com>,
	cbe-oss-dev@ozlabs.org, Arnd Bergmann <arnd@arndb.de>
Subject: Re: [RFC 0/3] powerpc: memory copy routines tweaked for Cell
Date: Fri, 20 Jun 2008 09:33:53 +1000	[thread overview]
Message-ID: <18522.60641.706672.27167@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <OF44809729.FB9D2C51-ONC125746D.00429A93-C125746D.0042FB12@de.ibm.com>

Gunnar von Boehn writes:

> I have no results for P5/P6, but I did some tests on JS21 aka PPC-970.
> On PPC-970 the CELL memcpy is faster than the current Linux routine.
> This becomes really visible when you really copy memory-to-memory and are
> not only working in the 2ndlevelcache.

Could you send some more details, like the actual copy speed you
measured and how you did the tests?

Thanks,
Paul.

  reply	other threads:[~2008-06-19 23:33 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-19  7:53 [RFC 0/3] powerpc: memory copy routines tweaked for Cell Mark Nelson
2008-06-19 11:53 ` Arnd Bergmann
2008-06-19 12:02   ` Paul Mackerras
2008-06-19 13:59     ` Arnd Bergmann
2008-06-19 14:53       ` Olof Johansson
2008-06-20  0:04         ` Mark Nelson
2008-06-19 12:11   ` Gunnar von Boehn
2008-06-19 23:33     ` Paul Mackerras [this message]
2008-06-20 16:12       ` Gunnar von Boehn
2008-06-19 23:49   ` Mark Nelson
2008-06-21  0:12     ` Mark Nelson

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