From: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
To: Avi Kivity <avi@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
kvm@vger.kernel.org, Mike Galbraith <efault@gmx.de>,
qemu-devel@nongnu.org, Chris Wright <chrisw@sous-sol.org>,
Anthony Liguori <aliguori@linux.vnet.ibm.com>
Subject: [Qemu-devel] Re: [PATCH] qemu-kvm: response to SIGUSR1 to start/stop a VCPU (v2)
Date: Thu, 2 Dec 2010 21:14:38 +0530 [thread overview]
Message-ID: <20101202154437.GD16411@linux.vnet.ibm.com> (raw)
In-Reply-To: <4CF7BC54.2080909@redhat.com>
On Thu, Dec 02, 2010 at 05:33:40PM +0200, Avi Kivity wrote:
> A0 and A1's vruntime will keep growing, eventually B will become
> leftmost and become runnable (assuming leftmost == min vruntime, not
> sure what the terminology is).
Donation (in directed yield) will cause vruntime to drop as well (thats the only
way target can get to run ahead of its scheduled time), so I still think there
are nasty issues involved here.
Anyway, I am curious to see the directed yield implementation that Rik has - I
can comment more after I have seen that!
- vatsa
next prev parent reply other threads:[~2010-12-02 15:46 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-23 16:49 [Qemu-devel] [PATCH] qemu-kvm: response to SIGUSR1 to start/stop a VCPU (v2) Anthony Liguori
2010-11-23 19:35 ` Blue Swirl
2010-11-23 21:46 ` Anthony Liguori
2010-11-23 23:43 ` Paolo Bonzini
2010-11-24 1:15 ` Anthony Liguori
2010-11-24 2:08 ` Paolo Bonzini
2010-11-24 8:18 ` [Qemu-devel] " Avi Kivity
2010-11-24 13:58 ` Anthony Liguori
2010-11-24 14:23 ` Avi Kivity
2010-12-01 12:37 ` Srivatsa Vaddagiri
2010-12-01 12:56 ` Avi Kivity
2010-12-01 16:12 ` Srivatsa Vaddagiri
2010-12-01 16:25 ` Peter Zijlstra
2010-12-01 17:17 ` Chris Wright
2010-12-01 17:22 ` Peter Zijlstra
2010-12-01 17:26 ` Rik van Riel
2010-12-01 19:07 ` Peter Zijlstra
2010-12-01 19:24 ` Rik van Riel
2010-12-01 19:35 ` Peter Zijlstra
2010-12-01 19:42 ` Rik van Riel
2010-12-01 19:47 ` Peter Zijlstra
2010-12-02 9:07 ` Avi Kivity
2010-12-01 17:46 ` Chris Wright
2010-12-01 17:29 ` Srivatsa Vaddagiri
2010-12-01 17:45 ` Peter Zijlstra
2010-12-01 18:00 ` Srivatsa Vaddagiri
2010-12-01 19:09 ` Peter Zijlstra
2010-12-02 9:17 ` Avi Kivity
2010-12-02 11:47 ` Srivatsa Vaddagiri
2010-12-02 12:22 ` Srivatsa Vaddagiri
2010-12-02 12:41 ` Avi Kivity
2010-12-02 13:13 ` Srivatsa Vaddagiri
2010-12-02 13:49 ` Avi Kivity
2010-12-02 15:27 ` Srivatsa Vaddagiri
2010-12-02 15:28 ` Srivatsa Vaddagiri
2010-12-02 15:33 ` Avi Kivity
2010-12-02 15:44 ` Srivatsa Vaddagiri [this message]
2010-12-02 12:19 ` Srivatsa Vaddagiri
2010-12-02 12:42 ` Avi Kivity
2010-12-02 9:14 ` Avi Kivity
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