From: Jan Kasprzak <kas@informatics.muni.cz>
To: linux-kernel@vger.kernel.org
Subject: RAID5 checksum algorithm selection
Date: Tue, 3 Sep 2002 16:18:46 +0200 [thread overview]
Message-ID: <20020903161846.J18187@fi.muni.cz> (raw)
Hello, world!\n
I've tested RAID-5 on my new dual athlon box, and got the
following messages during system boot:
raid5: measuring checksumming speed
8regs : 2550.400 MB/sec
32regs : 1702.000 MB/sec
pIII_sse : 4735.600 MB/sec
pII_mmx : 3910.800 MB/sec
p5_mmx : 5016.800 MB/sec
raid5: using function: pIII_sse (4735.600 MB/sec)
Why does the kernel decide to use the pIII_sse function,
even though the p5_mmx is faster?
The kernel is 2.4.20-pre5-ac1.
-Yenya
--
| Jan "Yenya" Kasprzak <kas at {fi.muni.cz - work | yenya.net - private}> |
| GPG: ID 1024/D3498839 Fingerprint 0D99A7FB206605D7 8B35FCDE05B18A5E |
| http://www.fi.muni.cz/~kas/ Czech Linux Homepage: http://www.linux.cz/ |
Pruning my incoming mailbox after being 10 days off-line,
sorry for the delayed reply.
next reply other threads:[~2002-09-03 14:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-03 14:18 Jan Kasprzak [this message]
2002-09-03 14:41 ` Jurriaan
2002-09-03 14:43 ` Jan Kasprzak
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