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Re: [Qemu-devel] [PATCH 0/7 RFC] Localhost live migration
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH 0/7 RFC] Localhost live migration |
Date: |
Mon, 17 Jun 2013 14:57:05 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
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
- Re: [Qemu-devel] [PATCH 4/7] migration-local: implementation of outgoing part, (continued)
- [Qemu-devel] [PATCH 3/7] arch_init: add ram_madvise_free(), Lei Li, 2013/06/16
- [Qemu-devel] [PATCH 5/7] migration-local: implementation of incoming part, Lei Li, 2013/06/16
- [Qemu-devel] [PATCH 6/7] migration-local: add option to command line for -incoming-local, Lei Li, 2013/06/16
- [Qemu-devel] [PATCH 7/7] hmp: add hmp_localhost_migration interface, Lei Li, 2013/06/16
- Re: [Qemu-devel] [PATCH 0/7 RFC] Localhost live migration, Anthony Liguori, 2013/06/16
- Re: [Qemu-devel] [PATCH 0/7 RFC] Localhost live migration,
Stefan Hajnoczi <=