From: Stefan Hajnoczi <stefanha@gmail.com>
To: Lei Li <lilei@linux.vnet.ibm.com>
Cc: lagarcia@br.ibm.com, aliguori@us.ibm.com, qemu-devel@nongnu.org,
quintela@redhat.com
Subject: Re: [Qemu-devel] [PATCH 0/7 RFC] Localhost live migration
Date: Mon, 17 Jun 2013 14:57:05 +0200 [thread overview]
Message-ID: <20130617125705.GG30145@stefanha-thinkpad.redhat.com> (raw)
In-Reply-To: <1371397053-4503-1-git-send-email-lilei@linux.vnet.ibm.com>
On Sun, Jun 16, 2013 at 11:37:26PM +0800, Lei Li wrote:
> 2) Use different mechanism than current live migration.
>
> The very basic work flow like:
>
> qemu on the source (the source and destination are both on localhost)
> |
> V
> Stop VM
> |
> V
> Create threads
> |
> V
> Page flipping through vmspice
> |
> V
> MADV_DONTNEED the ram pages which are already flipped
> |
> V
> Migration completes
>
> As stopping VM first, we expect/resume the page flipping through vmspice
> is fast enough to meet *live migration (low downtime).
Nice idea, that would allow low downtime QEMU upgrades.
Stefan
next prev parent reply other threads:[~2013-06-17 12:57 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-16 15:37 [Qemu-devel] [PATCH 0/7 RFC] Localhost live migration Lei Li
2013-06-16 15:37 ` [Qemu-devel] [PATCH 1/7] migration: export MIG_STATE_xxx flags Lei Li
2013-06-16 16:01 ` Anthony Liguori
2013-06-18 6:03 ` Lei Li
2013-06-16 15:37 ` [Qemu-devel] [PATCH 2/7] savevm: export qemu_save_device_state() Lei Li
2013-06-16 16:02 ` Anthony Liguori
2013-06-18 6:05 ` Lei Li
2013-06-16 15:37 ` [Qemu-devel] [PATCH 3/7] arch_init: add ram_madvise_free() Lei Li
2013-06-16 16:04 ` Anthony Liguori
2013-06-18 6:11 ` Lei Li
2013-08-02 19:34 ` Michael R. Hines
2013-06-16 15:37 ` [Qemu-devel] [PATCH 4/7] migration-local: implementation of outgoing part Lei Li
2013-06-16 16:07 ` Anthony Liguori
2013-06-18 6:25 ` Lei Li
2013-06-16 15:37 ` [Qemu-devel] [PATCH 5/7] migration-local: implementation of incoming part Lei Li
2013-06-16 15:37 ` [Qemu-devel] [PATCH 6/7] migration-local: add option to command line for -incoming-local Lei Li
2013-06-16 15:37 ` [Qemu-devel] [PATCH 7/7] hmp: add hmp_localhost_migration interface Lei Li
2013-06-16 16:01 ` [Qemu-devel] [PATCH 0/7 RFC] Localhost live migration Anthony Liguori
2013-06-18 6:02 ` Lei Li
2013-06-17 12:57 ` Stefan Hajnoczi [this message]
2013-06-18 6:01 ` Lei Li
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