From: Keir Fraser <keir.fraser@eu.citrix.com>
To: lei yang <yanglei.fage@gmail.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
Xen Mailing List <xen-users@lists.xensource.com>
Subject: Re: [Xen-devel] What's the different for "dom0_max_vcpus=4 dom0_vcpus_pin" and "dom0_max_vcpus=4" ?
Date: Fri, 21 May 2010 16:59:27 +0100 [thread overview]
Message-ID: <C81C6C6F.14E3A%keir.fraser@eu.citrix.com> (raw)
In-Reply-To: <AANLkTimn2XnISAXff8CafeivrmsRTE9LkircaN3I0vus@mail.gmail.com>
On 21/05/2010 16:39, "lei yang" <yanglei.fage@gmail.com> 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
next prev parent reply other threads:[~2010-05-21 15:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-21 3:09 What's the different for "dom0_max_vcpus=4 dom0_vcpus_pin" and "dom0_max_vcpus=4" ? lei yang
2010-05-21 6:57 ` Keir Fraser
2010-05-21 15:39 ` lei yang
2010-05-21 15:46 ` Pasi Kärkkäinen
2010-05-21 15:51 ` lei yang
2010-05-21 15:55 ` Pasi Kärkkäinen
2010-05-21 15:59 ` Keir Fraser [this message]
2010-05-21 12:02 ` What's the different for "dom0_max_vcpus=4dom0_vcpus_pin" " Robert Dunkley
2010-05-21 15:38 ` lei yang
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