[Users] Processor Type
------=_NextPart_000_00C1_01CF4298.17B035C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit How do I assign a different processor type to an individual VM? (Sandy Bridge, Conroe, etc) ------=_NextPart_000_00C1_01CF4298.17B035C0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" = xmlns:o=3D"urn:schemas-microsoft-com:office:office" = xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" = xmlns=3D"http://www.w3.org/TR/REC-html40"><head><META = HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Dus-ascii"><meta name=3DGenerator content=3D"Microsoft Word 15 = (filtered medium)"><style><!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; margin-bottom:.0001pt; font-size:11.0pt; font-family:"Calibri","sans-serif";} a:link, span.MsoHyperlink {mso-style-priority:99; color:#0563C1; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {mso-style-priority:99; color:#954F72; text-decoration:underline;} span.EmailStyle17 {mso-style-type:personal-compose; font-family:"Calibri","sans-serif"; color:windowtext;} .MsoChpDefault {mso-style-type:export-only; font-family:"Calibri","sans-serif";} @page WordSection1 {size:8.5in 11.0in; margin:1.0in 1.0in 1.0in 1.0in;} div.WordSection1 {page:WordSection1;} --></style><!--[if gte mso 9]><xml> <o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" /> </xml><![endif]--><!--[if gte mso 9]><xml> <o:shapelayout v:ext=3D"edit"> <o:idmap v:ext=3D"edit" data=3D"1" /> </o:shapelayout></xml><![endif]--></head><body lang=3DEN-US = link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p = class=3DMsoNormal style=3D'margin-top:12.0pt'>How do I assign a = different processor type to an individual VM? (Sandy Bridge, Conroe, = etc)<o:p></o:p></p></div></body></html> ------=_NextPart_000_00C1_01CF4298.17B035C0--
------=_Part_2082450_785959655.1395238408757 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit ----- Original Message -----
From: "Maurice James" <midnightsteel@msn.com> To: users@ovirt.org Sent: Tuesday, March 18, 2014 4:52:01 PM Subject: [Users] Processor Type
How do I assign a different processor type to an individual VM? (Sandy Bridge, Conroe, etc)
cpu name is cluster level, and usually the lowest common denominator of the hosts in cluster, to make sure migration works in the cluster. so you can change for cluster, which will affect all vms in the cluster, not individual vm
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
------=_Part_2082450_785959655.1395238408757 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit <html><body><div style="font-family: times new roman, new york, times, serif; font-size: 12pt; color: #000000"><div><br></div><div><br></div><hr id="zwchr"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Maurice James" <midnightsteel@msn.com><br><b>To: </b>users@ovirt.org<br><b>Sent: </b>Tuesday, March 18, 2014 4:52:01 PM<br><b>Subject: </b>[Users] Processor Type<br><div><br></div><style><!-- @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; margin-bottom:.0001pt; font-size:11.0pt; font-family:"Calibri","sans-serif";} a:link, span.MsoHyperlink {mso-style-priority:99; color:#0563C1; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {mso-style-priority:99; color:#954F72; text-decoration:underline;} span.EmailStyle17 {mso-style-type:personal-compose; font-family:"Calibri","sans-serif"; color:windowtext;} .MsoChpDefault {mso-style-type:export-only; font-family:"Calibri","sans-serif";} @page WordSection1 {size:8.5in 11.0in; margin:1.0in 1.0in 1.0in 1.0in;} div.WordSection1 {page:WordSection1;} --></style><div class="WordSection1"><p class="MsoNormal" style="margin-top:12.0pt">How do I assign a different processor type to an individual VM? (Sandy Bridge, Conroe, etc)</p></div></blockquote><div>cpu name is cluster level, and usually the lowest common denominator of the hosts in cluster,<br></div><div>to make sure migration works in the cluster.<br></div><div><br></div><div>so you can change for cluster, which will affect all vms in the cluster, not individual vm<br></div><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;">_______________________________________________<br>Users mailing list<br>Users@ovirt.org<br>http://lists.ovirt.org/mailman/listinfo/users<br></blockquote><div><br></div></div></body></html> ------=_Part_2082450_785959655.1395238408757--
On 03/19/2014 10:13 AM, Omer Frenkel wrote:
------------------------------------------------------------------------
*From: *"Maurice James" <midnightsteel@msn.com> *To: *users@ovirt.org *Sent: *Tuesday, March 18, 2014 4:52:01 PM *Subject: *[Users] Processor Type
How do I assign a different processor type to an individual VM? (Sandy Bridge, Conroe, etc)
cpu name is cluster level, and usually the lowest common denominator of the hosts in cluster, to make sure migration works in the cluster.
so you can change for cluster, which will affect all vms in the cluster, not individual vm
but if you are willing to compromise on performance, compared to live migration in the cluster, you can choose '-cpu host' for best match of the VM to the CPU available on the host.
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
--Sig_/++L4I1jBnX8PskITzLvMF5_ Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Wed, 19 Mar 2014 10:13:28 -0400 (EDT) Omer wrote: OF> cpu name is cluster level, and usually the lowest common denominator of OF> the hosts in cluster, to make sure migration works in the cluster.=20 Is there and documentation on the relationship between cpu types and compatibility? Right now I have a cluster per cpu type, and it might make sense to merge some of them if the performance hit was minimal. Robert -- Senior Software Engineer @ Parsons --Sig_/++L4I1jBnX8PskITzLvMF5_ Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlM5kHMACgkQ7/fVLLY1mngBWACfYVXQq/kxZgWerxh51SG3783j SXQAnAwAOO3wt6YBY1bomS2g1o+Q6Ewf =xjyR -----END PGP SIGNATURE----- --Sig_/++L4I1jBnX8PskITzLvMF5_--
On 03/31/2014 06:57 PM, Robert Story wrote:
On Wed, 19 Mar 2014 10:13:28 -0400 (EDT) Omer wrote: OF> cpu name is cluster level, and usually the lowest common denominator of OF> the hosts in cluster, to make sure migration works in the cluster.
Is there and documentation on the relationship between cpu types and compatibility? Right now I have a cluster per cpu type, and it might make sense to merge some of them if the performance hit was minimal.
that would be a question for qemu-kvm - they provide the cpu models we base this on. you can check which cpu flags you get exposed in the guest of the higher cpu model, then check if you think your applications would care about them...
The cpu model actually gets read from a libvirt xml file. Extensive documentation about this can be found here: http://wiki.libvirt.org/page/Libvirt_identifies_host_processor_as_a_differen... HTH Am 04.04.2014 17:32, schrieb Itamar Heim:
On 03/31/2014 06:57 PM, Robert Story wrote:
On Wed, 19 Mar 2014 10:13:28 -0400 (EDT) Omer wrote: OF> cpu name is cluster level, and usually the lowest common denominator of OF> the hosts in cluster, to make sure migration works in the cluster.
Is there and documentation on the relationship between cpu types and compatibility? Right now I have a cluster per cpu type, and it might make sense to merge some of them if the performance hit was minimal.
that would be a question for qemu-kvm - they provide the cpu models we base this on. you can check which cpu flags you get exposed in the guest of the higher cpu model, then check if you think your applications would care about them...
-- Mit freundlichen Grüßen / Regards Sven Kieske Systemadministrator Mittwald CM Service GmbH & Co. KG Königsberger Straße 6 32339 Espelkamp T: +49-5772-293-100 F: +49-5772-293-333 https://www.mittwald.de Geschäftsführer: Robert Meyer St.Nr.: 331/5721/1033, USt-IdNr.: DE814773217, HRA 6640, AG Bad Oeynhausen Komplementärin: Robert Meyer Verwaltungs GmbH, HRB 13260, AG Bad Oeynhausen
On 04/05/2014 02:33 PM, Sven Kieske wrote:
The cpu model actually gets read from a libvirt xml file.
Extensive documentation about this can be found here: http://wiki.libvirt.org/page/Libvirt_identifies_host_processor_as_a_differen...
iirc, it is still a pass-through to qemu-kvm, which accepts -cpu <cpu_model>.
HTH
Am 04.04.2014 17:32, schrieb Itamar Heim:
On 03/31/2014 06:57 PM, Robert Story wrote:
On Wed, 19 Mar 2014 10:13:28 -0400 (EDT) Omer wrote: OF> cpu name is cluster level, and usually the lowest common denominator of OF> the hosts in cluster, to make sure migration works in the cluster.
Is there and documentation on the relationship between cpu types and compatibility? Right now I have a cluster per cpu type, and it might make sense to merge some of them if the performance hit was minimal.
that would be a question for qemu-kvm - they provide the cpu models we base this on. you can check which cpu flags you get exposed in the guest of the higher cpu model, then check if you think your applications would care about them...
participants (5)
-
Itamar Heim -
Maurice James -
Omer Frenkel -
Robert Story -
Sven Kieske