Re: [Qemu-devel] [PATCH v5 0/5] qcow2: async handling of fragmented io

[Vladimir Sementsov-Ogievskiy]

16.09.2019 20:53, Vladimir Sementsov-Ogievskiy wrote:
> Hi all!
> 
> Here is an asynchronous scheme for handling fragmented qcow2
> reads and writes. Both qcow2 read and write functions loops through
> sequential portions of data. The series aim it to parallelize these
> loops iterations.
> It improves performance for fragmented qcow2 images, I've tested it
> as described below.
> 
> v5: fix 026 and rebase on Max's block branch [perf results not updated]:
> 
> 01: new, prepare 026 to not fail
> 03: - drop read_encrypted blkdbg event [Kevin]
>      - assert((x & (BDRV_SECTOR_SIZE - 1)) == 0) -> assert(QEMU_IS_ALIGNED(x, 
> BDRV_SECTOR_SIZE)) [rebase]
>      - full host offset in argument of qcow2_co_decrypt [rebase]
> 04: - substitute remaining qcow2_co_do_pwritev by qcow2_co_pwritev_task in 
> comment [Max]
>      - full host offset in argument of qcow2_co_encrypt [rebase]
> 05: - Now patch don't affect 026 iotest, so its output is not changed
> 
> Rebase changes seems trivial, so, I've kept r-b marks.
> 
> Based-on: https://github.com/XanClic/qemu.git block

Now based on master.



-- 
Best regards,
Vladimir