Resource Pools in oVirt
--_fd17b1d6-c06b-4854-bb53-dd62b57eb9ae_ Content-Type: text/plain; charset="iso-8859-7" Content-Transfer-Encoding: quoted-printable Hello all=2C As far as I understand=2C 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 an= d be able to move them between Resource Pools of different priorities. I k= now 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 tha= t ? Regards=2C Sokratis = --_fd17b1d6-c06b-4854-bb53-dd62b57eb9ae_ 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'>Hello all=2C<div><br></div><div>= As far as I understand=2C CPU Shares can be set on each VM individually and= cannot be changed while it's powered on.</div><div><br></div><div><br></di= v><div>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 prioritie= s. =3BI know that we can configure quotas but it's not the same as CPU= shares.</div><div><br></div><div>Is that something planned for a future re= lease? Shall I open an RFE for that ?</div><div><br></div><div>Regards=2C</= div><div><br></div><div>Sokratis</div> </div></body> </html>= --_fd17b1d6-c06b-4854-bb53-dd62b57eb9ae_--
Hello all, =20 As far as I understand, 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 = 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 =
--Apple-Mail=_2BB330D1-88A9-4B89-A972-9B19502DDFCC Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1253 On 10 Jun 2014, at 23:18, s k wrote: the same as CPU shares.
=20 Is that something planned for a future release? Shall I open an RFE = for that ?
Doron would know=85?
=20 Regards, =20 Sokratis _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
--Apple-Mail=_2BB330D1-88A9-4B89-A972-9B19502DDFCC Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1253 <html><head><base href=3D"x-msg://1812/"></head><body style=3D"word-wrap: = break-word; -webkit-nbsp-mode: space; -webkit-line-break: = after-white-space; "><br><div><div>On 10 Jun 2014, at 23:18, s k = wrote:</div><br class=3D"Apple-interchange-newline"><blockquote = type=3D"cite"><span class=3D"Apple-style-span" style=3D"border-collapse: = separate; font-family: Helvetica; font-style: normal; font-variant: = normal; font-weight: normal; letter-spacing: normal; line-height: = normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; = text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; = -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: = 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: = auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div = class=3D"hmmessage" style=3D"font-size: 12pt; font-family: Calibri; = "><div dir=3D"ltr">Hello all,<div><br></div><div>As far as I understand, = CPU Shares can be set on each VM individually and cannot be changed = while it's powered on.</div><div><br></div><div><br></div><div>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.</div><div><br></div><div>Is that something planned for a future = release? Shall I open an RFE for that = ?</div></div></div></span></blockquote><div><br></div>Doron would = know=85?</div><div><br><blockquote type=3D"cite"><span = class=3D"Apple-style-span" style=3D"border-collapse: separate; = font-family: Helvetica; font-style: normal; font-variant: normal; = font-weight: normal; letter-spacing: normal; line-height: normal; = orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: = none; white-space: normal; widows: 2; word-spacing: 0px; = -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: = 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: = auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div = class=3D"hmmessage" style=3D"font-size: 12pt; font-family: Calibri; = "><div = dir=3D"ltr"><div><br></div><div>Regards,</div><div><br></div><div>Sokratis= </div></div>_______________________________________________<br>Users = mailing list<br><a = href=3D"mailto:Users@ovirt.org">Users@ovirt.org</a><br><a = href=3D"http://lists.ovirt.org/mailman/listinfo/users">http://lists.ovirt.= org/mailman/listinfo/users</a><br></div></span></blockquote></div><br></bo= dy></html>= --Apple-Mail=_2BB330D1-88A9-4B89-A972-9B19502DDFCC--
----- Original Message -----
From: "s k" <sokratis123k@outlook.com> To: users@ovirt.org 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
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_--
----- Original Message -----
From: "s k" <sokratis123k@outlook.com> To: "Doron Fediuck" <dfediuck@redhat.com> Cc: users@ovirt.org, "Michal Skrivanek" <mskrivan@redhat.com> 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: dfediuck@redhat.com To: sokratis123k@outlook.com CC: users@ovirt.org; mskrivan@redhat.com Subject: Re: [ovirt-users] Resource Pools in oVirt
----- Original Message -----
From: "s k" <sokratis123k@outlook.com> To: users@ovirt.org 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
participants (3)
-
Doron Fediuck -
Michal Skrivanek -
s k