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Re: [Qemu-devel] [PATCH 0/4] block: Vectored bdrv_writev_vmstate
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH 0/4] block: Vectored bdrv_writev_vmstate |
Date: |
Mon, 8 Apr 2013 18:03:19 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Fri, Apr 05, 2013 at 09:27:52PM +0200, Kevin Wolf wrote:
> This gives us back reasonable savevm performance, which regressed in
> commit 500f0061.
>
> Kevin Wolf (4):
> block: Introduce bdrv_writev_vmstate
> savevm: Implement block_writev_buffer()
> block: Introduce bdrv_pwritev() for qcow2_save_vmstate
> qemu-iotests: A few more bdrv_pread/pwrite tests
>
> block.c | 105
> +++++++++++++++++++++++++++++++-----------
> block/qcow2.c | 6 +--
> block/sheepdog.c | 13 ++++--
> include/block/block.h | 3 ++
> include/block/block_int.h | 4 +-
> include/migration/qemu-file.h | 2 +-
> savevm.c | 25 ++++++++--
> tests/qemu-iotests/002 | 13 ++++++
> tests/qemu-iotests/002.out | 26 +++++++++++
> 9 files changed, 157 insertions(+), 40 deletions(-)
>
> --
> 1.8.1.4
Looks fine on the block side. Perhaps Orit, Juan, or Paolo can
double-check the migration side.
Reviewed-by: Stefan Hajnoczi <address@hidden>
Re: [Qemu-devel] [PATCH 0/4] block: Vectored bdrv_writev_vmstate, Stefan Hajnoczi, 2013/04/09