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 Kjellström | E-mail: cap at nsc.liu.se National Supercomputer Centre | Sweden | http://www.nsc.liu.se -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 191 bytes Desc: not available URL: <http://lists.centos.org/pipermail/centos/attachments/20060323/136765c2/attachment-0004.sig>