It seems that there is something wrong with measuring checksumming speed -
on my two P3 boxes linux chooses pIII_sse but pII_mmx and p5_mmx are
reported as faster instructions:
2.4.10-ac10/Pentium3 733:
raid5: measuring checksumming speed
8regs : 1266.400 MB/sec
32regs : 898.400 MB/sec
pIII_sse : 1508.000 MB/sec
pII_mmx : 1643.600 MB/sec
p5_mmx : 1730.400 MB/sec
raid5: using function: pIII_sse (1508.000 MB/sec)
Podobnie na drugim systemie:
2.4.10-ac10/Pentium3 933:
raid5: measuring checksumming speed
8regs : 1603.600 MB/sec
32regs : 1138.000 MB/sec
pIII_sse : 1910.000 MB/sec
pII_mmx : 2081.600 MB/sec
p5_mmx : 2189.600 MB/sec
raid5: using function: pIII_sse (1910.000 MB/sec)
Best regards,
Krzysztof Oledzki
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