From: Lionel Bouton <Lionel.Bouton@inet6.fr>
To: Soeren Sonnenburg <kernel@nn7.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: choice of raid5 checksumming algorithm wrong ?
Date: Sat, 11 Jan 2003 16:45:04 +0100 [thread overview]
Message-ID: <3E203C00.5060403@inet6.fr> (raw)
In-Reply-To: <1042266405.14440.54.camel@sun>
Soeren Sonnenburg wrote:
>Hi!
>
>I really do wonder whether the displayed message is wrong or why it
>always chooses the slowest checksumming function (happens with 2.4.19 -
>21pre3)
>
>
SSE is always preferred because unlike other checksumming code it
doesn't use the processor caches when reading/writing data/checksum.
This is slower (if several GB/s can be considered slow) for the
checksumming but far better for the overall system performance.
LB.
next prev parent reply other threads:[~2003-01-11 15:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-11 6:26 choice of raid5 checksumming algorithm wrong ? Soeren Sonnenburg
2003-01-11 15:45 ` Lionel Bouton [this message]
2003-01-11 19:39 ` Rene Rebe
2003-01-11 19:52 ` Soeren Sonnenburg
2003-01-11 20:20 ` Rene Rebe
2003-01-12 14:44 ` Mr. James W. Laferriere
2003-01-12 16:14 ` Rene Rebe
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