[Qemu-commits] [qemu/qemu] 0a189f: block/gluster: fix doc in the qapi schema and memb...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/qemu/qemu
  Commit: 0a189ffb5e9d6091c766bd4d01265251488a18a6
      
https://github.com/qemu/qemu/commit/0a189ffb5e9d6091c766bd4d01265251488a18a6
  Author: Prasanna Kumar Kalever <address@hidden>
  Date:   2016-07-26 (Tue, 26 Jul 2016)

  Changed paths:
    M qapi/block-core.json

  Log Message:
  -----------
  block/gluster: fix doc in the qapi schema and member name

1. qapi @BlockdevOptionsGluster schema member name s/debug_level/debug-level/
2. rearrange the versioning
3. s/server description/servers description/

Signed-off-by: Prasanna Kumar Kalever <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Reviewed-by: Jeff Cody <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Jeff Cody <address@hidden>


  Commit: 0965a41e998ab820b5d660c8abfc8c819c97bc1b
      
https://github.com/qemu/qemu/commit/0965a41e998ab820b5d660c8abfc8c819c97bc1b
  Author: Vladimir Sementsov-Ogievskiy <address@hidden>
  Date:   2016-07-26 (Tue, 26 Jul 2016)

  Changed paths:
    M block/mirror.c

  Log Message:
  -----------
  mirror: double performance of the bulk stage if the disc is full

Mirror can do up to 16 in-flight requests, but actually on full copy
(the whole source disk is non-zero) in-flight is always 1. This happens
as the request is not limited in size: the data occupies maximum available
capacity of s->buf.

The patch limits the size of the request to some artificial constant
(1 Mb here), which is not that big or small. This effectively enables
back parallelism in mirror code as it was designed.

The result is important: the time to migrate 10 Gb disk is reduced from
~350 sec to 170 sec.

Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Signed-off-by: Denis V. Lunev <address@hidden>
Reviewed-by: Max Reitz <address@hidden>
Reviewed-by: Jeff Cody <address@hidden>
Message-id: address@hidden
CC: Stefan Hajnoczi <address@hidden>
CC: Fam Zheng <address@hidden>
CC: Kevin Wolf <address@hidden>
CC: Max Reitz <address@hidden>
CC: Jeff Cody <address@hidden>
CC: Eric Blake <address@hidden>
Signed-off-by: Jeff Cody <address@hidden>


  Commit: df5c50a208296c8303e591296f4e834a3b3fcb3d
      
https://github.com/qemu/qemu/commit/df5c50a208296c8303e591296f4e834a3b3fcb3d
  Author: Peter Maydell <address@hidden>
  Date:   2016-07-27 (Wed, 27 Jul 2016)

  Changed paths:
    M block/mirror.c
    M qapi/block-core.json

  Log Message:
  -----------
  Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into 
staging

# gpg: Signature made Tue 26 Jul 2016 21:51:38 BST
# gpg:                using RSA key 0xBDBE7B27C0DE3057
# gpg: Good signature from "Jeffrey Cody <address@hidden>"
# gpg:                 aka "Jeffrey Cody <address@hidden>"
# gpg:                 aka "Jeffrey Cody <address@hidden>"
# Primary key fingerprint: 9957 4B4D 3474 90E7 9D98  D624 BDBE 7B27 C0DE 3057

* remotes/cody/tags/block-pull-request:
  mirror: double performance of the bulk stage if the disc is full
  block/gluster: fix doc in the qapi schema and member name

Signed-off-by: Peter Maydell <address@hidden>


Compare: https://github.com/qemu/qemu/compare/c1fdfe9fcaf4...df5c50a20829