2.4.17 raid5 checksumming function selection wierdness

From: Anders Vedmar (anders.vedmar@interactiveinstitute.se)
Date: Fri Jan 11 2002 - 07:12:53 EST

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The raid5 code in 2.4.17 seems to select the slowest available
checksumming function.

Part of dmesg output follows:

[...]
raid5: measuring checksumming speed
   8regs : 2148.000 MB/sec
   32regs : 1900.400 MB/sec
   pIII_sse : 1272.000 MB/sec
   pII_mmx : 3291.200 MB/sec
   p5_mmx : 4212.400 MB/sec
raid5: using function: pIII_sse (1272.000 MB/sec)
[...]

The machine is an Athlon XP 1400MHz on an MSI K7T266Pro2 board with
512 Mb of PC2100 DDR.

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