On Friday 30 May 2003 03:42, Ross Macintyre wrote: > Thanks for this information Jesse - exactly what I was looking for. Bad > coincidence that I decided to take the opportunity of putting on the > latest redhat kernel at the same time as trying out megamgr! > You say the performance is bad under 2.4.20-13. Can you tell me how > you can measure this? hdparm -t /dev/sda is one meausre, although not all that accurate. tiobench is another measuring tool, along with bonnie++. For some of these tests (multiple tests within each package) the newer kernel was faster, but for many of them, the older kernel was faster. For example, hdparm -t on the new kernel gave me 40MB/s on a 3disk raid5 array, while on the older kernel I got 150MB/s from hdparm -t. -- Jesse Keating RHCE MCSE http://geek.j2solutions.net Mondo DevTeam (www.mondorescue.org) Was I helpful? Let others know: http://svcs.affero.net/rm.php?r=jkeating -- Psyche-list mailing list Psyche-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/psyche-list
