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. Thanks > On Thu, Nov 25, 2010 at 12:58:22AM -0500, T Johnson wrote: >> Hello, >> >> Does anyone know of any work in progress or any tricks to limit a >> guest's i/o requests to a specific throttled rate? I have guests that >> mount their filesystems via virtio, which are images served on an NFS >> server. Some of these guests will flood the server with requests and >> can then choke out the i/o requests of neighboring guests. I'd rather >> be able to specify that certain guests can only get so many read or >> write iops. i/o bandwidth rates would be nice, but iops tend to be the >> killer since an nfs server only has so many. >> >> I've seen something recently on a block i/o throttling via cgroups, >> but from what I've been able to grok... this support is being built >> only with local devices in mind? I'm afraid that wouldn't work for my >> NFS server setup and image files? >> >> Is there something that can be done from with virtio? Or another trick? >> >> Thanks, >> Thomas >> -- >> 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 >> > > -- > ------------------------------------- > Ing. Nikola CIPRICH > LinuxBox.cz, s.r.o. > 28. rijna 168, 709 01 Ostrava > > tel.: +420 596 603 142 > fax: +420 596 621 273 > mobil: +420 777 093 799 > > www.linuxbox.cz > > mobil servis: +420 737 238 656 > email servis: servis@xxxxxxxxxxx > ------------------------------------- > -- 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
