On Mon, Nov 29, 2010 at 2:00 AM, T Johnson <tjohnson46@xxxxxxxxx> wrote: > Hello, > > On Thu, Nov 25, 2010 at 3:33 AM, Nikola Ciprich <extmaillist@xxxxxxxxxxx> wrote: >> Hello Thomas, >> I t hink blkio-cgroup really can't help You here, but since NFS is >> network protocol, >> why not just consider some kind of network shaping? >> n. > > I thought about this, but it's rather imprecise I imagine if I try to > limit the number of packets per second and hope that matches reads or > writes per second. Secondly, I have many guests running to the same > NFS server which makes limiting per kvm guest somewhat impossible when > the network tools I know if would limit per NFS server. Perhaps iptables/tc can mark the stream based on the client process ID? Each VM has a qemu-kvm userspace process that will issue file I/O. Someone with more networking knowledge could confirm whether or not it is possible to mark based on the process ID using the in-kernel NFS client. You don't need to limit based on packets per second. You can do bandwidth-based traffic shaping with tc. Stefan -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
