From: Kevin Wolf <kwolf@redhat.com>
To: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Cc: fam@euphon.net, qemu-block@nongnu.org, qemu-devel@nongnu.org,
mreitz@redhat.com, stefanha@redhat.com, den@openvz.org
Subject: Re: [Qemu-devel] [PATCH v2 for 4.1 0/2] avoid lseek on block_status
Date: Wed, 22 May 2019 12:47:53 +0200 [thread overview]
Message-ID: <20190522104753.GD6087@localhost.localdomain> (raw)
In-Reply-To: <20190408162617.258535-1-vsementsov@virtuozzo.com>
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
next prev parent reply other threads:[~2019-05-22 10:51 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-08 16:26 [Qemu-devel] [PATCH v2 for 4.1 0/2] avoid lseek on block_status Vladimir Sementsov-Ogievskiy
2019-04-08 16:26 ` Vladimir Sementsov-Ogievskiy
2019-04-08 16:26 ` [Qemu-devel] [PATCH v2 1/2] tests/perf: Test lseek influence on qcow2 block-status Vladimir Sementsov-Ogievskiy
2019-04-08 16:26 ` Vladimir Sementsov-Ogievskiy
2019-04-08 16:26 ` [Qemu-devel] [PATCH v2 2/2] block: avoid recursive block_status call if possible Vladimir Sementsov-Ogievskiy
2019-04-08 16:26 ` Vladimir Sementsov-Ogievskiy
2019-05-22 10:32 ` Kevin Wolf
2019-05-27 15:13 ` Max Reitz
2019-05-28 6:39 ` Vladimir Sementsov-Ogievskiy
2019-05-28 15:47 ` Max Reitz
2019-04-22 9:58 ` [Qemu-devel] [PATCH v2 for 4.1 0/2] avoid lseek on block_status Vladimir Sementsov-Ogievskiy
2019-04-22 9:58 ` Vladimir Sementsov-Ogievskiy
2019-05-06 15:14 ` Vladimir Sementsov-Ogievskiy
2019-05-21 7:50 ` [Qemu-devel] ping " Vladimir Sementsov-Ogievskiy
2019-05-22 10:47 ` Kevin Wolf [this message]
2019-05-22 11:30 ` [Qemu-devel] " Vladimir Sementsov-Ogievskiy
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