Re: [Qemu-devel] [PATCHv3 1.8 0/9] qemu-img convert optimizations

[Stefan Hajnoczi]

On Wed, Nov 27, 2013 at 11:07:00AM +0100, Peter Lieven wrote:
> this series adds some optimizations for qemu-img during convert which
> have been developed recently:
> - skipping input based on get_block_status
> - variable I/O buffer size
> - align write requests to cluster_size
> 
> v2->v3:
>   - added Paolos comments in Patch 1
>   - changed the comment in patch 7 [Paolo]
>   - remove the patch to add sector progress output
>   - added a new patch to decrease the progress update interval.
> 
> v1->v2:
>   - introduce opt_transfer_length in BlockLimits [Paolo]
>   - remove knobs for iobuffer_size and alignment and
>     use them unconditionally [Paolo]
>   - calculate I/O buffer size by BlockLimits information [Paolo]
>   - change the alignment patch to round down to the
>     last and not to the next aligned sector [Paolo]
>   - limit updates in the sector progress output
>   - new patch to increase the default for min_sparse [Paolo]
> 
> Peter Lieven (9):
>   qemu-img: add support for skipping zeroes in input during convert
>   qemu-img: fix usage instruction for qemu-img convert
>   block/iscsi: set bdi->cluster_size
>   block: add opt_transfer_length to BlockLimits
>   block/iscsi: set bs->bl.opt_transfer_length
>   qemu-img: dynamically adjust iobuffer size during convert
>   qemu-img: round down request length to an aligned sector
>   qemu-img: increase min_sparse to 128 sectors (64kb)
>   qemu-img: decrease progress update interval on convert
> 
>  block/iscsi.c             |   10 ++++
>  include/block/block_int.h |    3 ++
>  qemu-img.c                |  131 
> +++++++++++++++++++++++++++------------------
>  qemu-img.texi             |    2 +-
>  4 files changed, 93 insertions(+), 53 deletions(-)

Merged all except patch 8/9.

Thanks, applied to my block tree:
https://github.com/stefanha/qemu/commits/block

Stefan