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[Xen-users] Re: [Xen-devel] What's the different for "dom0_max_vcpus=4 d
| To: | lei yang <yanglei.fage@xxxxxxxxx> |
|---|---|
| Subject: | [Xen-users] Re: [Xen-devel] What's the different for "dom0_max_vcpus=4 dom0_vcpus_pin" and "dom0_max_vcpus=4" ? |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Fri, 21 May 2010 16:59:27 +0100 |
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| Delivery-date: | Fri, 21 May 2010 09:08:35 -0700 |
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| Thread-topic: | [Xen-devel] What's the different for "dom0_max_vcpus=4 dom0_vcpus_pin" and "dom0_max_vcpus=4" ? |
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On 21/05/2010 16:39, "lei yang" <yanglei.fage@xxxxxxxxx> wrote: >> The former restricts Xen to only run Dom0 VCPUs 0-3 on physical CPUs 0-3. > > dom0_max_vcpus=4 dom0_vcpus_pin will just to core0-3? can it be 3 4 5 6? > if remove "dom0_vcpus_pin" just use " dom0_max_vcpus=4 " can it be 3 4 5 6 ? No, but you can set whatever affinity you like after dom0 has booted. For example, to pin Dom0 VCPUs 0-3 to CPUs 3-6 respectively: xl vcpu-pin 0 0 3 xl vcpu-pin 0 1 4 xl vcpu-pin 0 2 5 xl vcpu-pin 0 3 6 (or use xm vcpu-pin if you are not using the new xl command). -- Keir _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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