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From: "Yuyang Du" <duyuyang@gmail.com>
To: Jan Beulich <jbeulich@novell.com>, "pasik@iki.fi" <pasik@iki.fi>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: Re: PV kernel boot parameter maxcpus has noeffect?
Date: Wed, 28 Apr 2010 18:18:01 +0800	[thread overview]
Message-ID: <201004281817587658434@gmail.com> (raw)

>However, given that the bringing up of secondary CPUs happens from common (even arch-independent) code, the whole issue
>seems a little suspicious - namely what indication he uses to see that there are more than 4 vCPU-s in use by Dom0.

I was not clear, and using maxcpus boot parameter in dom0 kernel is not what I want. 

I wanted to let xen see only one socket and schedule only that socket (4 cores), so giving dom0 kernel boot parameter does not help. So I was wrong about that.

What I am looking for is to tell xen to schedule only a portion of the available physical processors to whatever VMs, is there any method? I checked the BIOS options, and there is no way to disable a processor.

Thanks,
Shawn

             reply	other threads:[~2010-04-28 10:18 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-28 10:18 Yuyang Du [this message]
2010-04-28 10:27 ` Re: PV kernel boot parameter maxcpus has noeffect? Jan Beulich

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