> I had done lots of performance tests in the past and the more VMs you are > running on a server, the more you will see latencies in disk IO. I found out > that turning off the schedulers and also setting swappiness to a very low > value, brings back performance.
To some extent.. where you start getting performance limitations in the drivers for the disk controllers in the host. Have you found a concise and useful resource for squeezing maximal (nominal) performance for KVM?
