SATA and HDParm

John Summerfield debian at herakles.homelinux.org
Thu Nov 25 02:55:04 UTC 2004


On Thursday 25 November 2004 10:25, Ow Mun Heng wrote:
> /dev/sda:
> Timing buffer-cache reads: 2416 MB in 2.00 seconds = 1208.18 MB/sec
> Timing buffered disk reads: 444 MB in 3.02 seconds = 146.90 MB/sec

Try something like this:

[root at dugong ~]# time dd if=/dev/hda bs=$((1024*1024)) count=1024 of=/dev/null
1024+0 records in
1024+0 records out

real    0m47.263s
user    0m0.015s
sys     0m8.855s
[root at dugong ~]#


and do your own arithmetic.


-- 
Cheers
John




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