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Re: [Xen-users] Heterogeneous XCP 1.6 pool

  • To: xen-users@xxxxxxxxxxxxx
  • From: Eduardo Bragatto <eduardo@xxxxxxxxxxxx>
  • Date: Tue, 25 Jun 2013 13:00:31 -0300
  • Delivery-date: Tue, 25 Jun 2013 16:01:19 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>

Hi Neal,

Thanks for sharing your setup. I'm also using the compare-cpu script the same as you, however after I run "host-set-cpu-features" and reboot the server, it does not come back with the mask set -- "features" is still the same as  "physical_features".

Did you do anything else besides running "host-set-cpu-features" and rebooting?

Eduardo Bragatto

On Tue, Jun 25, 2013 at 11:47 AM, Errol Neal <eneal@xxxxxxxxxxxxxxxxx> wrote:
On Tue, 06/25/2013 10:38 AM, Mark Felder <feld@xxxxxxx> wrote:
> On Mon, Jun 24, 2013, at 21:10, Eduardo Bragatto wrote:
> > Is there anything else I should do to ensure the cpu mask is configured
> > at boot?
> >

I'll just share my experiences.
I'm running a pool with several hapertown based systems (5410) and a single E5645 based system.

[root@xenserver-0003 /]# xe host-cpu-info
cpu_count                : 12
                   vendor: GenuineIntel
                    speed: 2400.138
                modelname: Intel(R) Xeon(R) CPU           E5645  @ 2.40GHz
                   family: 6
                    model: 44
                 stepping: 2
                    flags: fpu de tsc msr pae mce cx8 apic sep mtrr mca cmov pat clflush acpi mmx fxsr sse sse2 ss ht nx constant_tsc nonstop_tsc aperfmperf pni vmx est ssse3 sse4_1 hypervisor ida arat tpr_shadow vnmi flexpriority ept vpid
                 features: 000ce3bd-bfebfbff-00000001-20100800
    features_after_reboot: 000ce3bd-bfebfbff-00000001-20100800
        physical_features: 029ee3ff-bfebfbff-00000001-2c100800
                 maskable: full

The command I used was xe host-set-cpu-features using values obtained from running the compare-cpu script which I obtained from here: http://www.cl.cam.ac.uk/xen/XenE/host-cpu-info/compare-cpu

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