----- Original Message ----- > From: "s k" <[email protected]> > To: "Doron Fediuck" <[email protected]> > Cc: [email protected], "Michal Skrivanek" <[email protected]> > Sent: Saturday, June 14, 2014 1:33:26 PM > Subject: RE: [ovirt-users] Resource Pools in oVirt > > That's great Doron! Especially the QoS Policy sounds almost like the VMware > Resource Pools. Looking forward for the next release then!
Actually I'd expect a better implementation as we hand aspects which are not available in Resource Pools. > By the way, since we are talking about CPU shares, the default option when > creating a VM is 'disabled'. How is that compared with the Low/Medium/High > options in terms of CPU priority? > According to the docs[1]: "If this is omitted, it defaults to the OS provided defaults." I guess it would be interesting to check this while it's running to get the actual number from your run. Doron [1] http://libvirt.org/formatdomain.html#elementsCPUTuning > > Date: Fri, 13 Jun 2014 04:29:09 -0400 > > From: [email protected] > > To: [email protected] > > CC: [email protected]; [email protected] > > Subject: Re: [ovirt-users] Resource Pools in oVirt > > > > ----- Original Message ----- > > > From: "s k" <[email protected]> > > > To: [email protected] > > > Sent: Wednesday, June 11, 2014 12:18:35 AM > > > Subject: [ovirt-users] Resource Pools in oVirt > > > > > > Hello all, > > > > > > As far as I understand, CPU Shares can be set on each VM individually and > > > cannot be changed while it's powered on. > > > > > > > > > It would be great if we could create resource pools (similar to what > > > VMware > > > does) for CPU shares so that we could assign priorities on multiple VMs > > > and > > > be able to move them between Resource Pools of different priorities. I > > > know > > > that we can configure quotas but it's not the same as CPU shares. > > > > > > Is that something planned for a future release? Shall I open an RFE for > > > that > > > ? > > > > > > Regards, > > > > > > Sokratis > > > > > > > Hi Sokratis, > > thanks for the feedback. > > > > We have an RFE[1] opened to allow changing shares dynamically for a VM > > while it's > > running. > > > > As you probably know VMWare's implementation handles much more than shares, > > so > > it's a wider concept. > > > > In oVirt we've been working hard to introduce QoS elements during 3.3 and > > 3.5 > > versions[2]. Once we have it all in place we'll start heading for the next > > level > > (up) which will be a Policy to aggregate QoS aspects for a VM. Once we have > > a > > policy you'll be able to assign it to multiple VMs and have much better > > control > > over resource including a planning element. So you should be monitoring the > > Policy > > task progress once we start working on it. > > > > So... as you can understand this is a lot of work (which I'm sure was the > > same > > for VMWare when they did it). Until then you'll be able to handle it using > > [1] > > I expect to happen in the next version, and as always- patches are > > welcomed! > > > > Thanks, > > Doron > > > > [1] Bug 1103537 - [RFE] Dynamic CPU Shares > > [2] QoS aspects: > > http://www.ovirt.org/Features/CPU_SLA > > http://www.ovirt.org/Features/Network_QoS > > http://www.ovirt.org/Features/blkio-support > _______________________________________________ Users mailing list [email protected] http://lists.ovirt.org/mailman/listinfo/users
