Matt Hogstrom wrote: > Right now I'm running SuSE Open Linux 10.2 with the Xen kernel. I've > created a VM with 3G of memory and 2 CPUs (I don't currently have Intel > hyperthreading enabled). > > The performance of the VM is a bit sluggish. I had made some > assumptions on the performance based on the box's characteristics (4 > 3.4Ghz dual core processors with 16MB shared L3 cache). It has 20GB of > PC3200 memory. I think those assumptions may not be valid so I'm going > to step backand get a baseline of native performance and then layer in > the Xen Kernel and finally some VMs. I was hoping to avoid these steps > cause they take time.
Look in to tuning the kernel and Xen, and th eprocessor. I have seen virtualization, when tuned, to nearly see almost no performance difference. Also be sure you boot into the bios and turn on the VT processor extensions. A larges % of the machines get shipped with those turned off in the bios (I don't know why they keep em off initially). Jeff
