On Thursday 23 March 2006 15:37, Vanja Hrustic wrote:
> I have installed CentOS 4.2, recently, on new computer.
>
> Everything seemed to work fine.
>
> However, we've found out that disk transfers are incredibly slow, and I
> just can't figure out what to do in order to fix it.
>
> Computer is now running CentOS 4.3 (updated it 1 hour ago), and same
> thing is still present. I hoped kernel upgrade might fix it, but it
> didn't.
Very interesting, you do have working sata drivers (your device is /dev/sd*)
and your hdparm -t gives expected number and yet you see really bad
performance... wow.
Have you tried to figure out if it's reading or writing or both that suck? try
this:
time dd if=/dev/zero of=testfile bs=1M count=1000
time dd if=testfile of=/dev/null bs=1M
If you have 1 gig ram or more adjust count...
/Peter
--
------------------------------------------------------------
Peter Kjellstr?m | E-mail: cap@xxxxxxxxxx
National Supercomputer Centre |
Sweden | http://www.nsc.liu.se
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