From: Marcelo Tosatti <mtosatti@redhat.com>
To: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: kvm@vger.kernel.org, qemu-devel <qemu-devel@nongnu.org>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Juan Quintela <quintela@redhat.com>,
Eduardo Habkost <ehabkost@redhat.com>
Subject: Re: [QEMU PATCH] kvmclock: advance clock by time window between vm_stop and pre_save
Date: Fri, 4 Nov 2016 15:07:52 -0200 [thread overview]
Message-ID: <20161104170750.GA4346@amt.cnet> (raw)
In-Reply-To: <20161104152522.GC5388@potion>
On Fri, Nov 04, 2016 at 04:25:23PM +0100, Radim Krčmář wrote:
> > + /*
> > + * Transition from VM-running to VM-stopped via migration?
> > + * Record when the VM was stopped.
> > + */
> > +
> > + if (state == RUN_STATE_FINISH_MIGRATE &&
> > + !migration_in_postcopy(migrate_get_current())) {
> > + clock_gettime(CLOCK_MONOTONIC, &s->t_aftervmstop);
>
> How big (more like small) was the clock delta between here and
> kvmclock_pre_save with postcopy?
>
> Thanks.
qemu-system-x86_64: postcopy_ram_supported_by_host: userfaultfd not
available: Function not implemented
But should be about the same as precopy+this patch (guess as i don't
know the postcopy path).
next prev parent reply other threads:[~2016-11-04 17:12 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-04 9:43 [QEMU PATCH] kvmclock: advance clock by time window between vm_stop and pre_save Marcelo Tosatti
2016-11-04 12:28 ` Juan Quintela
2016-11-04 12:35 ` Marcelo Tosatti
2016-11-04 14:00 ` Marcelo Tosatti
2016-11-04 15:25 ` Radim Krčmář
2016-11-04 15:33 ` Paolo Bonzini
2016-11-04 15:48 ` Radim Krčmář
2016-11-04 15:57 ` Paolo Bonzini
2016-11-04 17:16 ` Radim Krčmář
2016-11-04 21:29 ` Paolo Bonzini
2016-11-04 21:47 ` Marcelo Tosatti
2016-11-04 22:35 ` Paolo Bonzini
2016-11-07 14:31 ` Roman Kagan
2016-11-07 19:31 ` Marcelo Tosatti
2016-11-04 16:24 ` Marcelo Tosatti
2016-11-04 17:34 ` Radim Krčmář
2016-11-04 18:29 ` Marcelo Tosatti
2016-11-04 20:07 ` Radim Krčmář
2016-11-04 16:04 ` Marcelo Tosatti
2016-11-04 17:07 ` Marcelo Tosatti [this message]
2016-11-04 17:39 ` Radim Krčmář
2016-11-04 18:31 ` Marcelo Tosatti
2016-11-07 13:08 ` Dr. David Alan Gilbert
2016-11-04 16:59 ` [QEMU PATCH v2] " Marcelo Tosatti
2016-11-04 18:57 ` Juan Quintela
2016-11-07 15:46 ` Dr. David Alan Gilbert
2016-11-07 19:41 ` Marcelo Tosatti
2016-11-07 20:03 ` Dr. David Alan Gilbert
2016-11-08 0:06 ` Marcelo Tosatti
2016-11-08 10:22 ` Dr. David Alan Gilbert
2016-11-08 13:32 ` Marcelo Tosatti
2016-11-09 19:32 ` Marcelo Tosatti
2016-11-09 16:23 ` Paolo Bonzini
2016-11-09 16:28 ` Dr. David Alan Gilbert
2016-11-09 16:33 ` Paolo Bonzini
2016-11-10 11:48 ` Marcelo Tosatti
2016-11-10 17:57 ` Paolo Bonzini
2016-11-11 14:23 ` Marcelo Tosatti
2017-02-07 10:02 ` Wanpeng Li
2017-02-07 12:18 ` Marcelo Tosatti
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