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SubjectRe: choice of raid5 checksumming algorithm wrong ?

I also consider the kprint message a useability bug - and this is why
I posted a patch that prints out that the algorithm is choosen to
write "arround" the L2 cache ... - We patch this in our ROCK Linux
standard patches ...

On: Sat, 11 Jan 2003 16:45:04 +0100,
Lionel Bouton <> wrote:
> 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.

- René

René Rebe - Europe/Germany/Berlin

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