how to estimate the disk access time?
e.g. the time between read one byte and another byte in the
disk.
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Answer Posted / daniele
http://www.linuxinsight.com/how_fast_is_your_disk.html
% sudo hdparm -t /dev/hda
/dev/hda:
Timing buffered disk reads: 140 MB in 3.02 seconds = 46.28
MB/sec
Substitute /dev/hda with the name of your raw disk device,
of course (for example, it might be /dev/sda if you're using
libata, or something else).
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