Date: Fri=2C 13 Jun 2014 04:29:09 -0400 From: dfediuck@redhat.com To: sokratis123k@outlook.com CC: users@ovirt.org=3B mskrivan@redhat.com Subject: Re: [ovirt-users] Resource Pools in oVirt =20 ----- Original Message -----
From: "s k" <sokratis123k@outlook.com> To: users@ovirt.org Sent: Wednesday=2C June 11=2C 2014 12:18:35 AM Subject: [ovirt-users] Resource Pools in oVirt =20 Hello all=2C =20 As far as I understand=2C CPU Shares can be set on each VM individually= and cannot be changed while it's powered on. =20 =20 It would be great if we could create resource pools (similar to what VM= ware 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. =20 Is that something planned for a future release? Shall I open an RFE for=
--_facb027b-b636-4f40-ba8e-1bfb283ad698_ Content-Type: text/plain; charset="iso-8859-7" Content-Transfer-Encoding: quoted-printable That's great Doron! Especially the QoS Policy sounds almost like the VMware= Resource Pools. Looking forward for the next release then! By the way=2C since we are talking about CPU shares=2C the default option w= hen creating a VM is 'disabled'. How is that compared with the Low/Medium/H= igh options in terms of CPU priority? that
? =20 Regards=2C =20 Sokratis =20 =20 Hi Sokratis=2C thanks for the feedback. =20 We have an RFE[1] opened to allow changing shares dynamically for a VM wh= ile it's running. =20 As you probably know VMWare's implementation handles much more than share= s=2C so it's a wider concept. =20 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 nex= t level (up) which will be a Policy to aggregate QoS aspects for a VM. Once we ha= ve a policy you'll be able to assign it to multiple VMs and have much better c= ontrol over resource including a planning element. So you should be monitoring t= he Policy task progress once we start working on it. =20 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 usin= g [1] I expect to happen in the next version=2C and as always- patches are welc= omed! =20 Thanks=2C Doron =20 [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 =
--_facb027b-b636-4f40-ba8e-1bfb283ad698_ Content-Type: text/html; charset="iso-8859-7" Content-Transfer-Encoding: quoted-printable <html> <head> <style><!-- .hmmessage P { margin:0px=3B padding:0px } body.hmmessage { font-size: 12pt=3B font-family:Calibri } --></style></head> <body class=3D'hmmessage'><div dir=3D'ltr'>That's great Doron! Especially t= he QoS Policy sounds almost like the VMware Resource Pools. =3BLooking= forward for the next release then!<div><br></div><div>By the way=2C since = we are talking about CPU shares=2C the default option when creating a VM is= 'disabled'. How is that compared with the Low/Medium/High options in terms= of CPU priority?<br><br><div>>=3B Date: Fri=2C 13 Jun 2014 04:29:09 -040= 0<br>>=3B From: dfediuck@redhat.com<br>>=3B To: sokratis123k@outlook.co= m<br>>=3B CC: users@ovirt.org=3B mskrivan@redhat.com<br>>=3B Subject: R= e: [ovirt-users] Resource Pools in oVirt<br>>=3B <br>>=3B ----- Origina= l Message -----<br>>=3B >=3B From: "s k" <=3Bsokratis123k@outlook.com= >=3B<br>>=3B >=3B To: users@ovirt.org<br>>=3B >=3B Sent: Wednesda= y=2C June 11=2C 2014 12:18:35 AM<br>>=3B >=3B Subject: [ovirt-users] Re= source Pools in oVirt<br>>=3B >=3B <br>>=3B >=3B Hello all=2C<br>&g= t=3B >=3B <br>>=3B >=3B As far as I understand=2C CPU Shares can be s= et on each VM individually and<br>>=3B >=3B cannot be changed while it'= s powered on.<br>>=3B >=3B <br>>=3B >=3B <br>>=3B >=3B It would= be great if we could create resource pools (similar to what VMware<br>>= =3B >=3B does) for CPU shares so that we could assign priorities on multi= ple VMs and<br>>=3B >=3B be able to move them between Resource Pools of= different priorities. I know<br>>=3B >=3B that we can configure quotas= but it's not the same as CPU shares.<br>>=3B >=3B <br>>=3B >=3B Is= that something planned for a future release? Shall I open an RFE for that<= br>>=3B >=3B ?<br>>=3B >=3B <br>>=3B >=3B Regards=2C<br>>=3B = >=3B <br>>=3B >=3B Sokratis<br>>=3B >=3B <br>>=3B <br>>=3B Hi= Sokratis=2C<br>>=3B thanks for the feedback.<br>>=3B <br>>=3B We hav= e an RFE[1] opened to allow changing shares dynamically for a VM while it's= <br>>=3B running.<br>>=3B <br>>=3B As you probably know VMWare's impl= ementation handles much more than shares=2C so<br>>=3B it's a wider conce= pt.<br>>=3B <br>>=3B In oVirt we've been working hard to introduce QoS = elements during 3.3 and 3.5<br>>=3B versions[2]. Once we have it all in p= lace we'll start heading for the next level<br>>=3B (up) which will be a = Policy to aggregate QoS aspects for a VM. Once we have a<br>>=3B policy y= ou'll be able to assign it to multiple VMs and have much better control<br>= >=3B over resource including a planning element. So you should be monitor= ing the Policy<br>>=3B task progress once we start working on it.<br>>= =3B <br>>=3B So... as you can understand this is a lot of work (which I'm= sure was the same<br>>=3B for VMWare when they did it). Until then you'l= l be able to handle it using [1]<br>>=3B I expect to happen in the next v= ersion=2C and as always- patches are welcomed!<br>>=3B <br>>=3B Thanks= =2C<br>>=3B Doron<br>>=3B <br>>=3B [1] Bug 1103537 - [RFE] Dynamic CP= U Shares<br>>=3B [2] QoS aspects:<br>>=3B http://www.ovirt.org/Features= /CPU_SLA<br>>=3B http://www.ovirt.org/Features/Network_QoS<br>>=3B http= ://www.ovirt.org/Features/blkio-support<br></div></div> </div></= body> </html>= --_facb027b-b636-4f40-ba8e-1bfb283ad698_--