Hi, On Wed, 2006-05-31 at 23:07 -0700, Ashe Canvar wrote: > For instance my avg data read rate ( tested using hdparm -t /dev/hda) > is 55MB/s using the regular smp kernel but it falls to 2.6MB/s when I > boot into dom0. No other domains are runnign at this point. I have > looked for incrementing interrupts in ide0 , there are none. If interrupt delivery is not happening, then that may certainly explain poor performance! There were some important fixes to Xen's irq delivery mechanism that have been added to FC5 since the 1.2080 kernel you are running. Could you please try updating to a newer kernel and seeing if you can reproduce the problem? Thanks, Stephen
