Hi all, My dom0 and domU machines are showing terrible disk performance degradation. 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. hdparm shows that dma mode is enabled. dmesg shows that the same driver is being used for both smp and dom0 cases ( Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ). I have total of 2Gig RAM in the box and dom0 is restricted to 512M. Any help appreciated ! Thanks, -ashe [root@medusa1 ~]# rpm -qa | grep -i xen kernel-xenU-2.6.16-1.2080_FC5 kernel-xen0-2.6.16-1.2080_FC5 xen-3.0.1-4
