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[Qemu-devel] [PATCH v3 0/27] write/create for Parallels images with reas
From: |
Denis V. Lunev |
Subject: |
[Qemu-devel] [PATCH v3 0/27] write/create for Parallels images with reasonable performance |
Date: |
Tue, 10 Mar 2015 11:50:54 +0300 |
This patchset provides an ability to create of/write to Parallels
images and some testing of the new code. Reading and writings are
optimized out and I expect the same or slightly better performance
as qcow2.
This patchset consists of not problematic part of the previous
patchset aka
[PATCH v4 0/16] parallels format support improvements
and new write/create code but it does not contradict questionable code
with XML handling there.
Changes from v2:
- read performance is almost doubled (up to 360 Mb/sec), write performance
is improved by 15-20%
- bat caching approach changed completely. bat_bitmap now contains the data
in on-disk format, which allows to use this data for metadata cache
- incorrect close detection code is added (inuse field in the header)
- very basic check consistency code added
Changes from v1:
- patches 13-19 added, which boosts performance from 800 KiB/sec to
near native performance
Signed-off-by: Denis V. Lunev <address@hidden>
CC: Roman Kagan <address@hidden>
CC: Jeff Cody <address@hidden>
CC: Kevin Wolf <address@hidden>
CC: Stefan Hajnoczi <address@hidden>
P.S. This is definitely not for 2.3...
- [Qemu-devel] [PATCH v3 0/27] write/create for Parallels images with reasonable performance,
Denis V. Lunev <=
- [Qemu-devel] [PATCH 22/27] block/parallels: improve image reading performance, Denis V. Lunev, 2015/03/10
- [Qemu-devel] [PATCH 25/27] block/parallels: add prealloc-mode and prealloc-size open paramemets, Denis V. Lunev, 2015/03/10
- [Qemu-devel] [PATCH 17/27] block/parallels: move parallels_open/probe to the very end of the file, Denis V. Lunev, 2015/03/10
- [Qemu-devel] [PATCH 16/27] block/parallels: read parallels image header and BAT into single buffer, Denis V. Lunev, 2015/03/10
- [Qemu-devel] [PATCH 10/27] block/parallels: support parallels image creation, Denis V. Lunev, 2015/03/10
- [Qemu-devel] [PATCH 01/27] iotests, parallels: quote TEST_IMG in 076 test to be path-safe, Denis V. Lunev, 2015/03/10