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> > In 2.6.13.2: > > /dev/hda: > Timing cached reads: 28 MB in 2.15 seconds = 13.03 MB/sec > Timing buffered disk reads: 14 MB in 3.30 seconds = 4.24 MB/sec > > and after hdparm -m 16 /dev/hda (recall this is the default in 2.6.12.6) > > /dev/hda: > Timing cached reads: 24 MB in 2.05 seconds = 11.73 MB/sec > Timing buffered disk reads: 36 MB in 3.11 seconds = 11.56 MB/sec > > I ran thing a few times in each case and the results were close. There > was nothing in dmesg. > > David > Hey that 4.24 MB/sec hints at DMA being busted although it claims to be on. Can you post the complete dmesg output for both kernels please? Parag - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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