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From: Avi Kivity <avi@redhat.com>
To: Gleb Natapov <gleb@redhat.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>,
	Michael Roth <mdroth@linux.vnet.ibm.com>,
	qemu-devel@nongnu.org, Anthony Liguori <anthony@codemonkey.ws>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Luiz Capitulino <lcapitulino@redhat.com>,
	Eric Blake <eblake@redhat.com>
Subject: Re: [Qemu-devel] Rethinking missed tick catchup
Date: Thu, 13 Sep 2012 18:51:30 +0300	[thread overview]
Message-ID: <50520102.6080401@redhat.com> (raw)
In-Reply-To: <20120913144811.GL20907@redhat.com>

On 09/13/2012 05:48 PM, Gleb Natapov wrote:
> On Thu, Sep 13, 2012 at 09:35:18AM -0500, Anthony Liguori wrote:
>> Gleb Natapov <gleb@redhat.com> writes:
>> 
>> > On Thu, Sep 13, 2012 at 09:06:29AM -0500, Anthony Liguori wrote:
>> >> "Daniel P. Berrange" <berrange@redhat.com> writes:
>> >> 
>> >> I think it's better for QEMU to talk to qemu-ga.  We can tell when a large
>> >> period of time has passed in QEMU because we'll accumulate a large
>> >> number of missed ticks.
>> >> 
>> > With RTC configured to use vm clock we will not.
>> 
>> Not for host suspend.  For stop and live migration, we stop vm_clock.
>> But QEMU isn't aware of host suspend so vm_clock cannot be stopped.
>> 
> Hmm, true. What about hooking into suspend and doing vmstop during
> suspend. 

There is a DBus API (UPower) with a method called AboutToSleep().  No
idea what it does or if unprivileged processes can access it.  libvirt
of qemud could do it, of course.

-- 
error compiling committee.c: too many arguments to function

  reply	other threads:[~2012-09-13 15:51 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-12 13:54 [Qemu-devel] Rethinking missed tick catchup Anthony Liguori
2012-09-12 14:21 ` Jan Kiszka
2012-09-12 14:44   ` Anthony Liguori
2012-09-12 14:50     ` Jan Kiszka
2012-09-12 15:06     ` Gleb Natapov
2012-09-12 15:42       ` Jan Kiszka
2012-09-12 15:45         ` Gleb Natapov
2012-09-12 16:16       ` Gleb Natapov
2012-09-12 15:15 ` Gleb Natapov
2012-09-12 18:19   ` Anthony Liguori
2012-09-13 10:49     ` Gleb Natapov
2012-09-13 13:14       ` Eric Blake
2012-09-13 13:28         ` Daniel P. Berrange
2012-09-13 14:06           ` Anthony Liguori
2012-09-13 14:22             ` Gleb Natapov
2012-09-13 14:34               ` Avi Kivity
2012-09-13 14:42                 ` Eric Blake
2012-09-13 15:40                   ` Avi Kivity
2012-09-13 15:50                     ` Anthony Liguori
2012-09-13 15:53                       ` Avi Kivity
2012-09-13 18:27                         ` Anthony Liguori
2012-09-16 10:05                           ` Avi Kivity
2012-09-16 14:37                             ` Anthony Liguori
2012-09-19 15:34                               ` Avi Kivity
2012-09-19 16:37                                 ` Gleb Natapov
2012-09-19 16:44                                   ` Avi Kivity
2012-09-19 16:55                                     ` Gleb Natapov
2012-09-19 16:57                                       ` Avi Kivity
2012-09-13 14:35               ` Anthony Liguori
2012-09-13 14:48                 ` Gleb Natapov
2012-09-13 15:51                   ` Avi Kivity [this message]
2012-09-13 15:56                   ` Anthony Liguori
2012-09-13 16:06                     ` Gleb Natapov
2012-09-13 18:33                       ` Anthony Liguori
2012-09-13 18:56                         ` Gleb Natapov
2012-09-13 20:06                           ` Anthony Liguori
2012-09-13 16:08                     ` Avi Kivity
2012-09-13 13:47         ` Gleb Natapov
2012-09-12 16:27 ` Stefan Weil
2012-09-12 16:45   ` Gleb Natapov
2012-09-12 17:30     ` Stefan Weil
2012-09-12 18:13       ` Gleb Natapov
2012-09-12 19:45         ` Stefan Weil
2012-09-13 10:50           ` Gleb Natapov
2012-09-12 20:06       ` Michael Roth
2012-09-12 17:23 ` Luiz Capitulino
  -- strict thread matches above, loose matches on Subject: below --
2012-09-12 18:03 Clemens Kolbitsch
2012-09-13  6:25 ` Paolo Bonzini

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