Enable vp9 row-based multithreading.

Enable vp9 row-based multithreading.

Improves current multi-threading performance (for the same number of threads) by:
5%-8% speedup for 2 threads, ~15% for 4 threads on Linux/Mac
with standalone libvpx.
~6% speedup on AppRTC on Linux/Mac with 4 threads.

BUG=None

Review-Url: https://codereview.webrtc.org/2776803002
Cr-Commit-Position: refs/heads/master@{#17432}
Committed: https://chromium.googlesource.com/external/webrtc/+/cb5d1150dbf7b8de6094680437ff3c809b233161

[jianj, 2017-03-24 22:56:38]

The CQ bit was checked by jianj@google.com to run a CQ dry run

[commit-bot: I haz the power, 2017-03-24 22:56:43]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2017-03-24 22:59:14]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-03-24 22:59:15]

Dry run: Try jobs failed on following builders:
  ios_dbg on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/ios_dbg/builds/24188)
  mac_baremetal on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/mac_baremetal/builds/20157)
  mac_rel on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/mac_rel/builds/24198)

[jianj, 2017-03-24 23:06:24]

The CQ bit was checked by jianj@google.com to run a CQ dry run

[commit-bot: I haz the power, 2017-03-24 23:06:30]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2017-03-24 23:29:39]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-03-24 23:29:40]

Dry run: This issue passed the CQ dry run.

[jianj, 2017-03-27 18:31:08]

Description was changed from

==========
Enable vp9 row-based multithreading.

8-10% speedup for ARM speed 8.
5%-8% speedup on Linux & Mac.

BUG=None
==========

to

==========
Enable vp9 row-based multithreading.

5%-8% speedup for 2 threads, ~15% for 4 threads on Linux/Mac
with standalone libvpx.

BUG=None
==========

[jianj, 2017-03-27 18:41:43]

jianj@google.com changed reviewers:
+ brandtr@webrtc.org, marpan@webrtc.org, mflodman@webrtc.org

[jianj, 2017-03-27 19:32:36]

Description was changed from

==========
Enable vp9 row-based multithreading.

5%-8% speedup for 2 threads, ~15% for 4 threads on Linux/Mac
with standalone libvpx.

BUG=None
==========

to

==========
Enable vp9 row-based multithreading.

Improves current multi-threading performance (for the same number of threads)
by:
5%-8% speedup for 2 threads, ~15% for 4 threads on Linux/Mac
with standalone libvpx.

BUG=None
==========

[jianj, 2017-03-27 19:37:09]

The CQ bit was checked by jianj@google.com to run a CQ dry run

[commit-bot: I haz the power, 2017-03-27 19:37:18]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2017-03-27 20:12:22]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-03-27 20:12:23]

Dry run: This issue passed the CQ dry run.

[jianj, 2017-03-29 03:43:15]

Description was changed from

==========
Enable vp9 row-based multithreading.

Improves current multi-threading performance (for the same number of threads)
by:
5%-8% speedup for 2 threads, ~15% for 4 threads on Linux/Mac
with standalone libvpx.

BUG=None
==========

to

==========
Enable vp9 row-based multithreading.

Improves current multi-threading performance (for the same number of threads)
by:
5%-8% speedup for 2 threads, ~15% for 4 threads on Linux/Mac
with standalone libvpx.
~6% speedup on AppRTC on Linux/Mac with 4 threads.

BUG=None
==========

[jianj, 2017-03-29 03:45:58]

I've updated some numbers in the commit message per tommi's reqeust.

[mflodman, 2017-03-29 04:21:24]

We'll also see the difference in the perf tests once submitted.

LGTM

[tommi, 2017-03-29 06:31:42]

tommi@webrtc.org changed reviewers:
+ tommi@webrtc.org

[tommi, 2017-03-29 06:31:42]

The CQ bit was checked by tommi@webrtc.org

[tommi, 2017-03-29 06:31:42]

lgtm

Thanks!

[commit-bot: I haz the power, 2017-03-29 06:31:50]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2017-03-29 06:56:09]

CQ is committing da patch.

Bot data: {"patchset_id": 40001, "attempt_start_ts": 1490769102161510,
"parent_rev": "acfb0177754cbf517a43dcae372e1672b141c3b9", "commit_rev":
"cb5d1150dbf7b8de6094680437ff3c809b233161"}

[commit-bot: I haz the power, 2017-03-29 06:56:12]

Description was changed from

==========
Enable vp9 row-based multithreading.

Improves current multi-threading performance (for the same number of threads)
by:
5%-8% speedup for 2 threads, ~15% for 4 threads on Linux/Mac
with standalone libvpx.
~6% speedup on AppRTC on Linux/Mac with 4 threads.

BUG=None
==========

to

==========
Enable vp9 row-based multithreading.

Improves current multi-threading performance (for the same number of threads)
by:
5%-8% speedup for 2 threads, ~15% for 4 threads on Linux/Mac
with standalone libvpx.
~6% speedup on AppRTC on Linux/Mac with 4 threads.

BUG=None

Review-Url: https://codereview.webrtc.org/2776803002
Cr-Commit-Position: refs/heads/master@{#17432}
Committed:
https://chromium.googlesource.com/external/webrtc/+/cb5d1150dbf7b8de609468043...
==========

[commit-bot: I haz the power, 2017-03-29 06:56:13]

Committed patchset #3 (id:40001) as
https://chromium.googlesource.com/external/webrtc/+/cb5d1150dbf7b8de609468043...