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Re: [Qemu-block] [Qemu-devel] [PULL 27/42] blockdev-backup: added suppor
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From: |
Eric Blake |
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Subject: |
Re: [Qemu-block] [Qemu-devel] [PULL 27/42] blockdev-backup: added support for data compression |
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Date: |
Fri, 16 Sep 2016 10:15:46 -0500 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 |
On 09/05/2016 01:13 PM, Kevin Wolf wrote:
> From: Pavel Butsykin <address@hidden>
>
> The idea is simple - backup is "written-once" data. It is written block
> by block and it is large enough. It would be nice to save storage
> space and compress it.
>
> +++ b/qapi/block-core.json
> @@ -939,6 +939,9 @@
> # @speed: #optional the maximum speed, in bytes per second. The default is 0,
> # for unlimited.
> #
> +# @compress: #optional true to compress data, if the target format supports
> it.
> +# (default: false) (since 2.7)
Again, 2.8.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- [Qemu-block] [PULL 20/42] qcow: add qcow_co_pwritev_compressed, (continued)
- [Qemu-block] [PULL 20/42] qcow: add qcow_co_pwritev_compressed, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 22/42] block: remove BlockDriver.bdrv_write_compressed, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 28/42] qemu-iotests: test backup compression in 055, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 23/42] block/io: turn on dirty_bitmaps for the compressed writes, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 24/42] block: simplify drive-backup, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 25/42] block: simplify blockdev-backup, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 29/42] qemu-iotests: add vmdk for test backup compression in 055, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 26/42] drive-backup: added support for data compression, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 27/42] blockdev-backup: added support for data compression, Kevin Wolf, 2016/09/05
- Re: [Qemu-block] [Qemu-devel] [PULL 27/42] blockdev-backup: added support for data compression,
Eric Blake <=
- [Qemu-block] [PULL 30/42] test-coroutine: Fix coroutine pool corruption, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 32/42] coroutine: Let CoMutex remember who holds it, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 31/42] qcow2: fix iovec size at qcow2_co_pwritev_compressed, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 34/42] block jobs: Improve error message for missing job ID, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 35/42] qemu-iotests: Log QMP traffic in debug mode, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 36/42] block: Allow node name for 'qemu-io' HMP command, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 38/42] coroutine: add a macro for the coroutine stack size, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 37/42] oslib-posix: add helpers for stack alloc and free, Kevin Wolf, 2016/09/05
- [Qemu-block] [PULL 33/42] coroutine: Assert that no locks are held on termination, Kevin Wolf, 2016/09/05