Hi I was wondering; Does it make any sense to use swap inside guests? Wouldn't it give better performance to just skip swap entirely in the guest, assign it more memory and then increase the swap size on the host?
Writing to swap on the host side doesn't have the overhead of the virtio layer, Qcow2 filesystem or an underlying host filesystem. And at the same time, KSM can decrease the overall memory usage on the host, which I suppose will lower the risk of the host using swap at all. Are there any disadvantages to this or would this be the prefered way of using swap on a KVM-based system? Thanks Best Regards Kenni Lund -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
