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Re: [Qemu-devel] [RFC V2, PATCH 0/2] Checkpoint-assisted migration propo
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [RFC V2, PATCH 0/2] Checkpoint-assisted migration proposal |
Date: |
Tue, 24 Nov 2015 10:51:49 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 |
On 11/24/2015 09:42 AM, Bohdan Trach wrote:
> Changes from V1:
> - Use ELF dumps produced by the dump-guest-memory command;
> - Use checkpoints for all memory blocks;
> - Use trace_ instead of DPRINTF;
> - removed RAM_SAVE_FLAG_PAGE_HASH flag;
> - General code cleanup and update to latest QEMU codebase.
>
> This patchset contains a checkpoint-assisted migration feature as
> proposed earlier on this list [1]. It allows reusing existing memory
> snapshots of guests to speed up migration of VMs between physical
> hosts.
>
> [1] https://lists.gnu.org/archive/html/qemu-devel/2015-04/msg01555.html
>
> Bohdan Trach (2):
> migration: implement checkpoint loading
> migration: use checkpoint during migration
>
> include/migration/migration.h | 4 +
> migration/ram.c | 288
> ++++++++++++++++++++++++++++++++++++++++--
> qemu-options.hx | 9 ++
> trace-events | 8 ++
> vl.c | 9 ++
> 5 files changed, 309 insertions(+), 9 deletions(-)
This touches the command line, but not any QMP .json files. Is this new
feature properly discoverable using existing QMP commands, or is this
something lacking in the proposal?
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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