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Re: [Qemu-devel] [PATCH v2 for 4.1 0/2] avoid lseek on block_status
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From: |
Vladimir Sementsov-Ogievskiy |
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Subject: |
Re: [Qemu-devel] [PATCH v2 for 4.1 0/2] avoid lseek on block_status |
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Date: |
Wed, 22 May 2019 11:30:51 +0000 |
22.05.2019 13:47, Kevin Wolf wrote:
> Am 08.04.2019 um 18:26 hat Vladimir Sementsov-Ogievskiy geschrieben:
>> Hi!
>>
>> It's a continuation for
>> "[PATCH] qcow2: avoid lseek on block_status if possible"
>> https://lists.gnu.org/archive/html/qemu-devel/2019-01/msg06598.html
>>
>> performance results for block-status on tmpfs [tests originally by Kevin,
>> now they are in 01]:
>>
>> ./tests/perf/block/qcow2/convert-blockstatus /ramdisk/x
>>
>> after 01:
>>
>> plain: 81.77
>> forward: 82.61
>> prealloc: 0.01
>>
>> after 02:
>>
>> plain: 0.12
>> forward: 0.12
>> prealloc: 0.01
>
> Thanks, applied to the block branch.
>
> Kevin
>
Thank you!
--
Best regards,
Vladimir