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[Xen-users] different number of cpus


  • To: "xen-users@xxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxx>
  • From: tutu sky <ooohooo_u@xxxxxxxxxxx>
  • Date: Sat, 12 Mar 2016 10:18:15 +0000
  • Accept-language: en-US
  • Delivery-date: Wed, 16 Mar 2016 11:25:44 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>
  • Thread-index: AQHRfEeXju1TiHQtBUy5XM1XOmuV2w==
  • Thread-topic: different number of cpus

Hi all,
i have installed Xen and while setting number of vcpus in Dom0 to 2, then go to 
terminal and issue "top" command, it shows me 4 core! these all happen while i 
have 2 cores available in /sys/devices/system/cpu (just cpu0 and cpu1), so what 
does it mean? I become totally confused, as i don't know what is the exact 
number of cores which are assigned to Xen or Dom0.
in other words, when using "xl vcpu-set Domain-0 2" command, whys this two 
vcpus are showed 4 in "top" command?

would you please give me an answer?
Thanks a lot.

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