On Wed, 23 Mar 2005, Oliver Korpilla wrote:
[EMAIL PROTECTED]:~# hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 2188 MB in 2.00 seconds = 1093.07 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device
Timing buffered disk reads: 96 MB in 3.03 seconds = 31.69 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device
what is the cpu usage while running hdparm? Especially during the buffered disk reads. If this is very low, then you can be sure your drive is using DMA.
bye Giacomo
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Giacomo Mulas <[EMAIL PROTECTED]> _________________________________________________________________
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