From: "Denis V. Lunev" <den@openvz.org>
To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
qemu-devel@nongnu.org, Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 22/27] block/parallels: improve image reading performance
Date: Wed, 22 Apr 2015 17:13:01 +0300 [thread overview]
Message-ID: <5537AC6D.4080903@openvz.org> (raw)
In-Reply-To: <20150422141128.GX27617@stefanha-thinkpad.redhat.com>
On 22/04/15 17:11, Stefan Hajnoczi wrote:
> On Wed, Mar 11, 2015 at 01:28:16PM +0300, Denis V. Lunev wrote:
>> Try to perform IO for the biggest continuous block possible.
>> The performance for sequential read is increased from 220 Gb/sec to
>> 360 Gb/sec for continous image on my SSD HDD.
> Please, can I have your SSD drive? :)
>
> Did you mean MB/sec?
yes... This was so wonderful to write these numbers.
I am dreaming.
OK, will fix that.
>> Signed-off-by: Denis V. Lunev <den@openvz.org>
>> Reviewed-by: Roman Kagan <rkagan@parallels.com>
>> CC: Kevin Wolf <kwolf@redhat.com>
>> CC: Stefan Hajnoczi <stefanha@redhat.com>
>> ---
>> block/parallels.c | 37 ++++++++++++++++++++++++++++++++-----
>> 1 file changed, 32 insertions(+), 5 deletions(-)
> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
next prev parent reply other threads:[~2015-04-22 14:13 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-11 10:27 [Qemu-devel] [PATCH v3 0/27] write/create for Parallels images with reasonable performance Denis V. Lunev
2015-03-11 10:27 ` [Qemu-devel] [PATCH 01/27] iotests, parallels: quote TEST_IMG in 076 test to be path-safe Denis V. Lunev
2015-04-22 12:19 ` Stefan Hajnoczi
2015-03-11 10:27 ` [Qemu-devel] [PATCH 02/27] block/parallels: rename parallels_header to ParallelsHeader Denis V. Lunev
2015-04-22 12:19 ` Stefan Hajnoczi
2015-03-11 10:27 ` [Qemu-devel] [PATCH 03/27] block/parallels: switch to bdrv_read Denis V. Lunev
2015-04-22 12:23 ` Stefan Hajnoczi
2015-04-22 12:30 ` Denis V. Lunev
2015-04-23 8:48 ` Stefan Hajnoczi
2015-03-11 10:27 ` [Qemu-devel] [PATCH 04/27] block/parallels: read up to cluster end in one go Denis V. Lunev
2015-04-22 12:28 ` Stefan Hajnoczi
2015-03-11 10:27 ` [Qemu-devel] [PATCH 05/27] block/parallels: add get_block_status Denis V. Lunev
2015-04-22 12:39 ` Stefan Hajnoczi
2015-04-22 12:42 ` Denis V. Lunev
2015-04-23 9:03 ` Stefan Hajnoczi
2015-04-23 9:23 ` Denis V. Lunev
2015-04-24 8:27 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 06/27] block/parallels: provide _co_readv routine for parallels format driver Denis V. Lunev
2015-04-22 12:41 ` Stefan Hajnoczi
2015-04-22 12:43 ` Denis V. Lunev
2015-03-11 10:28 ` [Qemu-devel] [PATCH 07/27] block/parallels: replace magic constants 4, 64 with proper sizeofs Denis V. Lunev
2015-04-22 12:42 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 08/27] block/parallels: _co_writev callback for Parallels format Denis V. Lunev
2015-04-22 12:44 ` Denis V. Lunev
2015-04-22 13:00 ` Stefan Hajnoczi
2015-04-22 13:08 ` Stefan Hajnoczi
2015-04-22 13:16 ` Denis V. Lunev
2015-04-23 9:20 ` Stefan Hajnoczi
2015-04-23 9:32 ` Kevin Wolf
2015-04-23 9:47 ` Denis V. Lunev
2015-04-23 10:09 ` Kevin Wolf
2015-04-23 9:36 ` Denis V. Lunev
2015-03-11 10:28 ` [Qemu-devel] [PATCH 09/27] iotests, parallels: test for write into Parallels image Denis V. Lunev
2015-04-22 13:09 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 10/27] block/parallels: support parallels image creation Denis V. Lunev
2015-04-22 13:15 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 11/27] iotests, parallels: test for newly created parallels image via qemu-img Denis V. Lunev
2015-04-22 13:17 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 12/27] parallels: change copyright information in the image header Denis V. Lunev
2015-04-22 13:26 ` Stefan Hajnoczi
2015-04-22 13:26 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 13/27] block/parallels: rename catalog_ names to bat_ Denis V. Lunev
2015-04-22 13:28 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 14/27] block/parallels: create bat2sect helper Denis V. Lunev
2015-04-22 13:29 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 15/27] block/parallels: keep BAT bitmap data in little endian in memory Denis V. Lunev
2015-04-22 13:31 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 16/27] block/parallels: read parallels image header and BAT into single buffer Denis V. Lunev
2015-04-22 13:39 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 17/27] block/parallels: move parallels_open/probe to the very end of the file Denis V. Lunev
2015-04-22 13:40 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 18/27] block/parallels: implement parallels_check method of block driver Denis V. Lunev
2015-03-11 10:44 ` Roman Kagan
2015-04-22 13:53 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 19/27] block/parallels: implement incorrect close detection Denis V. Lunev
2015-04-22 13:55 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 20/27] iotests, parallels: check for incorrectly closed image in tests Denis V. Lunev
2015-04-22 14:04 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 21/27] block/parallels: no need to flush on each block allocation table update Denis V. Lunev
2015-04-22 14:05 ` Stefan Hajnoczi
2015-04-22 14:08 ` Denis V. Lunev
2015-03-11 10:28 ` [Qemu-devel] [PATCH 22/27] block/parallels: improve image reading performance Denis V. Lunev
2015-04-22 14:11 ` Stefan Hajnoczi
2015-04-22 14:13 ` Denis V. Lunev [this message]
2015-03-11 10:28 ` [Qemu-devel] [PATCH 23/27] block/parallels: create bat_entry_off helper Denis V. Lunev
2015-04-22 14:13 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 24/27] block/parallels: delay writing to BAT till bdrv_co_flush_to_os Denis V. Lunev
2015-04-22 14:16 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 25/27] block/parallels: add prealloc-mode and prealloc-size open paramemets Denis V. Lunev
2015-03-11 10:28 ` [Qemu-devel] [PATCH 26/27] block/parallels: optimize linear image expansion Denis V. Lunev
2015-04-22 14:18 ` Stefan Hajnoczi
2015-04-22 14:25 ` Denis V. Lunev
2015-04-22 15:41 ` Denis V. Lunev
2015-04-23 9:26 ` Stefan Hajnoczi
2015-03-11 10:28 ` [Qemu-devel] [PATCH 27/27] block/parallels: improve image writing performance further Denis V. Lunev
2015-04-22 14:19 ` [Qemu-devel] [PATCH v3 0/27] write/create for Parallels images with reasonable performance Stefan Hajnoczi
-- strict thread matches above, loose matches on Subject: below --
2015-04-28 7:46 [Qemu-devel] [PATCH v4 " Denis V. Lunev
2015-04-28 7:46 ` [Qemu-devel] [PATCH 22/27] block/parallels: improve image reading performance Denis V. Lunev
2015-03-10 8:50 [Qemu-devel] [PATCH v3 0/27] write/create for Parallels images with reasonable performance Denis V. Lunev
2015-03-10 8:51 ` [Qemu-devel] [PATCH 22/27] block/parallels: improve image reading performance Denis V. Lunev
2015-03-10 14:50 ` Roman Kagan
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