<tt><font size=2>centos-virt-bounces@centos.org schrieb am 22.02.2012
08:14:14:<br>
<br>
> Trey Dockendorf <treydock@gmail.com> </font></tt>
<br><tt><font size=2>> Gesendet von: centos-virt-bounces@centos.org<br>
> </font></tt>
<br><tt><font size=2>> 22.02.2012 08:14</font></tt>
<br><tt><font size=2>> <br>
> Bitte antworten an<br>
> Discussion about the virtualization on CentOS <centos-virt@centos.org></font></tt>
<br><tt><font size=2>> <br>
> An</font></tt>
<br><tt><font size=2>> <br>
> Discussion about the virtualization on CentOS <centos-virt@centos.org></font></tt>
<br><tt><font size=2>> <br>
> Kopie</font></tt>
<br><tt><font size=2>> <br>
> Thema</font></tt>
<br><tt><font size=2>> <br>
> Re: [CentOS-virt] How many virtual guest 'cpus' can a core duo <br>
> 'quad' core support</font></tt>
<br><tt><font size=2>> <br>
> On Tue, Feb 21, 2012 at 2:59 PM, James B. Byrne <byrnejb@harte-lyne.ca>
wrote:<br>
> > CentOS-6.2<br>
> ><br>
> > What is the maximum number of cpus can I configure for a<br>
> > single vm guest running on a host with this hardware?<br>
> ><br>
> > # lscpu<br>
> > Architecture: x86_64<br>
> > CPU op-mode(s): 32-bit, 64-bit<br>
> > Byte Order: Little Endian<br>
> > CPU(s): 4<br>
> > On-line CPU(s) list: 0-3<br>
> > Thread(s) per core: 1<br>
> > Core(s) per socket: 4<br>
> > CPU socket(s): 1<br>
> > NUMA node(s): 1<br>
> > Vendor ID: GenuineIntel<br>
> > CPU family: 6<br>
> > Model:
23<br>
> > Stepping: 10<br>
> > CPU MHz: 1998.000<br>
> > BogoMIPS: 5331.76<br>
> > Virtualization: VT-x<br>
> > L1d cache: 32K<br>
> > L1i cache: 32K<br>
> > L2 cache: 2048K<br>
> > NUMA node0 CPU(s): 0-3<br>
> ><br>
> > I ask this because it occurs to me that I may have missed<br>
> > something fundamental respecting the use of the initialism<br>
> > CPU vice the term Cores.<br>
> ><br>
> ><br>
> > --<br>
> > *** E-Mail is NOT a SECURE
channel ***<br>
> > James B. Byrne
</font></tt><a href="mailto:ByrneJB@Harte-Lyne.ca"><tt><font size=2>mailto:ByrneJB@Harte-Lyne.ca</font></tt></a><tt><font size=2><br>
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> > 9 Brockley Drive vox:
+1 905 561 1241<br>
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+1 905 561 0757<br>
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> <br>
> <br>
> The maximum you can assign to a single VM is the amount of CPUs<br>
> visible to the KVM host. So a quad core is shows as 4 CPUs to
the OS,<br>
> so you could assign 4 vCPUs to a guest. To see how much is available<br>
> and seen by KVM run # virsh nodeinfo.<br>
> <br>
> - Trey<br>
> _______________________________________________<br>
> CentOS-virt mailing list<br>
> CentOS-virt@centos.org<br>
> </font></tt><a href="http://lists.centos.org/mailman/listinfo/centos-virt"><tt><font size=2>http://lists.centos.org/mailman/listinfo/centos-virt</font></tt></a><tt><font size=2><br>
</font></tt>
<br><tt><font size=2>Hello,</font></tt>
<br>
<br><tt><font size=2>I think thats not correct. I my case I have a HP N36L
Server with one Dualcore Prozessor and 4 guest running. You can overbook
the prozessor.</font></tt>
<br><font size=2 face="sans-serif">Maybe the performance goes down.</font>
<br><font size=2 face="sans-serif"> <br>
<br>
Gruß <br>
Andreas Reschke<br>
________________________________________________________________<br>
<br>
Unix/Linux-Administration<br>
Andreas.Reschke@behrgroup.com</font>