Martin Shuman [:Marty] Reporter
	Description • 9 years ago

Description:
When viewing a video, in the Video App, in YouTube, or even viewing the Tutorial videos after the FTU, the video will display very poor performance and framerate.

Repro Steps:
1) Update a Aries to 20150707205829
2) Open the browser and navigate to YouTube.com
3) Begin playback of a video.

Actual:
Video playback framerate is very poor and inconsistent.

Expected:
Video playback is smooth and consistent.

Environmental Variables:
Device: Aries 2.5
Build ID: 20150707205829
Gaia: 553e4e281d11500bea702918841f011bfb5405f7
Gecko: 0246d86e619670bf381d45d587e8ab036e7a8db5
Version: 42.0a1 (2.5)
Firmware Version: D5803_23.1.A.1.28_NCB.ftf
User Agent: Mozilla/5.0 (Mobile; rv:42.0) Gecko/42.0 Firefox/42.0

Repro frequency: (2/3, 100%, etc.)
Link to failed test case: 
https://moztrap.mozilla.org/manage/case/6073/
https://moztrap.mozilla.org/manage/case/2478/
See attached: logcat

	Martin Shuman [:Marty] Reporter
	Comment 1 • 9 years ago

This issue is also occurring on Aries KK builds.

Environmental Variables:
Device: Aries 2.5
Build ID: 20150708014729
Gaia: 938375d0abafd92d78b3913db1735e49f46a6598
Gecko: d6fb92164021
Gonk: 2916e2368074b5383c80bf5a0fba3fc83ba310bd
Version: 42.0a1 (2.5)
Firmware Version: D5803_23.1.A.1.28_NCB.ftf
User Agent: Mozilla/5.0 (Mobile; rv:42.0) Gecko/42.0 Firefox/42.0

	Peter Bylenga [:PBylenga]
	Comment 2 • 9 years ago

[Blocking Requested - why for this release]:
Performance regression which fails smoke tests.

Requesting a window.

	Pi Wei Cheng [:piwei] (inactive)
	Comment 3 • 9 years ago

We don't have builds available for doing a standard regression window on Aries due to bug 1133074. According to our smoke test team, this issue does not occur on yesterday's build. So we have a rough nightly window of:

Last Working
Device: Aries
BuildID: 20150707033152
Gaia: e6506d68e01489b57616f8b74e8773f938ce62b3
Gecko: e271ef4c49ae
Gonk: 2916e2368074b5383c80bf5a0fba3fc83ba310bd
Version: 42.0a1
Firmware Version: D5803_23.1.A.1.28_NCB.ftf
User Agent: Mozilla/5.0 (Mobile; rv:41.0) Gecko/41.0 Firefox/41.0

First Broken
Device: Aries
Build ID: 20150708014729
Gaia: 938375d0abafd92d78b3913db1735e49f46a6598
Gecko: d6fb92164021
Gonk: 2916e2368074b5383c80bf5a0fba3fc83ba310bd
Version: 42.0a1
Firmware Version: D5803_23.1.A.1.28_NCB.ftf
User Agent: Mozilla/5.0 (Mobile; rv:42.0) Gecko/42.0 Firefox/42.0

Gaia pushlog:
https://github.com/mozilla-b2g/gaia/compare/e6506d68e01489b57616f8b74e8773f938ce62b3...938375d0abafd92d78b3913db1735e49f46a6598

Gecko pushlog:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=e271ef4c49ae&tochange=d6fb92164021

Bug 1143575 looks like a possible culprit.

	Jayme Mercado [:JMercado] (Inactive 3/4/2016)
	Comment 4 • 9 years ago

Robert can you take a look at this issue and determine if the changes for bug 1143575 could be the cause here.

	Jayme Mercado [:JMercado] (Inactive 3/4/2016)
	Comment 5 • 9 years ago

Nicholas I was informed you may have some insights here as well.

	Robert O'Callahan (:roc) (email my personal email if necessary)
	Comment 6 • 9 years ago

What is an "Aries"? I have a Flame, does this bug show up on that? (I'm out of the office until next week.)

	Jayme Mercado [:JMercado] (Inactive 3/4/2016)
	Comment 7 • 9 years ago

Aries is the new reference device.  It does not occur on Flame.

	Robert O'Callahan (:roc) (email my personal email if necessary)
	Comment 8 • 9 years ago

Applying this patch might give us more helpful logcat output.

	No-Jun Park [:njpark]
	Comment 9 • 9 years ago

adding qawanted to try out the patch from Comment 8

	Pi Wei Cheng [:piwei] (inactive)
	Comment 10 • 9 years ago

QAnalysts are not set up to apply Gecko patches. Could you perhaps create an Aries build with that patch for us to test? Thanks.

	No-Jun Park [:njpark]
	Comment 11 • 9 years ago

Hmm, I tried to build the aries build locally, but I am keep getting the build error.  Naoki, could you help us out with making a custom build in taskcluster?

	Naoki Hirata :nhirata (please use needinfo instead of cc)
	Comment 12 • 9 years ago

Build kicked off on task cluster with patch from comment 8:
https://tools.taskcluster.net/task-inspector/#oABSUi5dQ8Ko_5NnA4_oBw/

Roc : Aries = Sony Xperia Z3 Compact.

	Naoki Hirata :nhirata (please use needinfo instead of cc)
	Comment 13 • 9 years ago

Build is available at : https://tools.taskcluster.net/task-inspector/#oABSUi5dQ8Ko_5NnA4_oBw/1
Not sure why it failed the first time around.

	Pi Wei Cheng [:piwei] (inactive)
	Comment 14 • 9 years ago

Thanks for setting up the build, Naoki. However we are unable to reproduce this bug on today's Aries build (RC4 > OTA to dogfood-latest), and we're also unable to repro the bug on the build provided on comment 13.

Consulted with reporter and they originally saw the issue on Aries Lollipop. If you could please get the patch on comment 8 applied to an L build so we can cover that base. Thank you.

	Naoki Hirata :nhirata (please use needinfo instead of cc)
	Comment 15 • 9 years ago

Patch bitrotted so I updated the patch.

	Pi Wei Cheng [:piwei] (inactive)
	Comment 16 • 9 years ago

Tested with an updated Aries L build from Naoki, confirmed that this issue is no longer reproducible. Closing as WFM.

Removing needinfo's on this bug.