From: Jeremy Fitzhardinge <jeremy@goop.org>
To: p z <zpengxen@gmail.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: Question about the current vcpu.
Date: Fri, 27 Mar 2009 22:16:46 -0700 [thread overview]
Message-ID: <49CDB2BE.2080504@goop.org> (raw)
In-Reply-To: <fce3faea0903271837s5efea0bao2dd2be93142e0ae@mail.gmail.com>
p z wrote:
> But the physical machine may be multi-core ,thus there may be two or
> more vcpus running in parallel on different cores.Then which vcpu is
> the current? How should I understand the current vcpu please?
"current" returns the vcpu currently running on this physical cpu (ie,
the one that's executing "current" itself). It will return different
results for each pcpu at a given instant, and will return different
values for a given pcpu over time as different vcpus are scheduled on itnb.
J
next prev parent reply other threads:[~2009-03-28 5:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-28 1:37 Question about the current vcpu p z
2009-03-28 5:16 ` Jeremy Fitzhardinge [this message]
2009-03-30 8:22 ` Zhiyuan Shao
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