Messages in this thread | | | From | Konstantin Sobolev <> | Subject | Re: poor sata performance on 2.6 | Date | Thu, 15 Apr 2004 14:40:23 +0400 |
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On Thursday 15 April 2004 11:12, Lenar Lõhmus wrote: > >for sata_sil: > > > >/dev/sda: > > Timing buffer-cache reads: 1412 MB in 2.00 seconds = 705.05 MB/sec > > Timing buffered disk reads: 84 MB in 3.06 seconds = 27.43 MB/sec > > > >So my old IDE HDD appears to be considerably faster. Expected results were > >55-70MB/s. > > With same hard drive connected to 3ware S-ATA controller I got > 40-50MB/sec with hdparm on 2.6.4 and 2.6.5. Then > tried to hdparm -a 8192 /dev/sda, and got this: > > /dev/sda: > Timing buffer-cache reads: 2056 MB in 2.00 seconds = 1027.13 MB/sec > Timing buffered disk reads: 266 MB in 3.00 seconds = 88.53 MB/sec > > So you may try that switch, maybe helps.
unfortunately it doesn't:
/dev/sda: setting fs readahead to 8192 readahead = 8192 (on) Timing buffered disk reads: 84 MB in 3.06 seconds = 27.46 MB/sec -- /KoS * Searching for light in the darkness of insanity. - 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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