| commit | ddd2ef2ce8d693b6e2635a0c20f65744641ff8df | |
| author | Denis V. Lunev <den@openvz.org> | |
| Tue, 28 Apr 2015 07:47:00 +0000 (28 10:47 +0300) | ||
| committer | Stefan Hajnoczi <stefanha@redhat.com> | |
| Fri, 22 May 2015 08:37:32 +0000 (22 09:37 +0100) | ||
| tree | d383c78f18a008dc62217f9785bf2964ae9e41fa | treesnapshot (tar.gz zip) |
| parent | 19f5dc15912dfb6af06c97e4975023e545e85c72 | commitdiff |
block/parallels: improve image writing performance further
Try to perform IO for the biggest continuous block possible.
All blocks abscent in the image are accounted in the same type
and preallocation is made for all of them at once.
The performance for sequential write is increased from 200 Mb/sec to
235 Mb/sec on my SSD HDD.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Roman Kagan <rkagan@parallels.com>
Signed-off-by: Roman Kagan <rkagan@parallels.com>
Message-id: 1430207220-24458-28-git-send-email-den@openvz.org
CC: Kevin Wolf <kwolf@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Try to perform IO for the biggest continuous block possible.
All blocks abscent in the image are accounted in the same type
and preallocation is made for all of them at once.
The performance for sequential write is increased from 200 Mb/sec to
235 Mb/sec on my SSD HDD.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Roman Kagan <rkagan@parallels.com>
Signed-off-by: Roman Kagan <rkagan@parallels.com>
Message-id: 1430207220-24458-28-git-send-email-den@openvz.org
CC: Kevin Wolf <kwolf@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
| block/parallels.c | diffblobblamehistory |