[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Daniel van Vugt]

Correction: Mir 0.21.1 does not exist yet, but it might in future.

** Changed in: mir/0.21
   Status: Fix Released => Fix Committed

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Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Fix Released
Status in Mir:
  Fix Released
Status in Mir 0.20 series:
  Fix Released
Status in Mir 0.21 series:
  Fix Committed
Status in Oxide:
  Invalid
Status in mir package in Ubuntu:
  Fix Released
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[kevin gunn]

rather it was a point release

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Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Fix Released
Status in Mir:
  Fix Released
Status in Mir 0.20 series:
  Fix Released
Status in Mir 0.21 series:
  Fix Released
Status in Oxide:
  Invalid
Status in mir package in Ubuntu:
  Fix Released
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[kevin gunn]

this should have been marked ota10

** Changed in: mir (Ubuntu)
   Status: Triaged => Fix Committed

** Changed in: mir/0.21
   Status: Fix Committed => Fix Released

** Changed in: mir/0.20
   Status: Fix Committed => Fix Released

** Changed in: mir (Ubuntu)
   Status: Fix Committed => Fix Released

** Changed in: canonical-devices-system-image
   Status: Fix Committed => Fix Released

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Fix Released
Status in Mir:
  Fix Released
Status in Mir 0.20 series:
  Fix Released
Status in Mir 0.21 series:
  Fix Released
Status in Oxide:
  Invalid
Status in mir package in Ubuntu:
  Fix Released
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Alberto Aguirre]

** Changed in: mir
   Status: Fix Committed => Fix Released

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Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Fix Committed
Status in Mir:
  Fix Released
Status in Mir 0.20 series:
  Fix Committed
Status in Mir 0.21 series:
  Fix Committed
Status in Oxide:
  Invalid
Status in mir package in Ubuntu:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Daniel van Vugt]

TLDR:
The fix was the same as bug 1563287. So you can refer to bug 1563287 to see the 
history.

** Changed in: mir
 Assignee: (unassigned) => Kevin DuBois (kdub)

** No longer affects: mir/0.22

** Branch linked: lp:~kdub/mir/avert-1563287

** Branch unlinked: lp:mir/0.22

** Also affects: mir/0.20
   Importance: Undecided
   Status: New

** Also affects: mir/0.21
   Importance: Undecided
   Status: New

** Changed in: mir/0.20
Milestone: None => 0.20.4

** Changed in: mir/0.21
Milestone: None => 0.21.1

** Changed in: mir/0.20
   Status: New => Fix Committed

** Changed in: mir/0.21
   Status: New => Fix Committed

** Changed in: mir/0.20
 Assignee: (unassigned) => Kevin DuBois (kdub)

** Changed in: mir/0.21
 Assignee: (unassigned) => Daniel van Vugt (vanvugt)

** Changed in: mir/0.21
 Assignee: Daniel van Vugt (vanvugt) => Kevin DuBois (kdub)

** Also affects: mir (Ubuntu)
   Importance: Undecided
   Status: New

** Changed in: mir (Ubuntu)
   Status: New => Triaged

** Changed in: mir (Ubuntu)
   Importance: Undecided => High

** Changed in: mir
   Importance: Undecided => High

** Changed in: mir/0.20
   Importance: Undecided => High

** Changed in: mir/0.21
   Importance: Undecided => High

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Fix Committed
Status in Mir:
  Fix Committed
Status in Mir 0.20 series:
  Fix Committed
Status in Mir 0.21 series:
  Fix Committed
Status in Oxide:
  Invalid
Status in mir package in Ubuntu:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[kevin gunn]

OK, after quite a bit of research the bottom line is that this is a mali quirk.
There are 2 potential ways both are by specification allowed to sync with the 
driver - which resulted in a performance issue (covered by this bug) and a 
"correctness issue" covered by bug 1573014
The performance issue is now addressed by the quirk added to mir0.22 for all 
the devices with mali gpu.
Further work will continue on bug 1573014 as there are other suspicions from 
data collected here that the mali driver has other issues.

** Changed in: mir
Milestone: None => 0.22.0

** Also affects: mir/0.22
   Importance: Undecided
   Status: New

** Changed in: mir/0.22
Milestone: None => 0.22.0

** Changed in: mir/0.22
   Status: New => Fix Committed

** Changed in: mir
   Status: New => Fix Committed

** Changed in: canonical-devices-system-image
   Status: Confirmed => Fix Committed

** Branch linked: lp:mir/0.22

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Fix Committed
Status in Mir:
  Fix Committed
Status in Mir 0.22 series:
  Fix Committed
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

I don't have any measured data for the scrolling improvement - I can
probably do a chrome://tracing/ run again though

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Mir:
  New
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Daniel van Vugt]

You will also want this smoothness fix if you're using touch:
https://code.launchpad.net/~vanvugt/unity8/fix-1556763/+merge/288891

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Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Mir:
  New
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[kevin gunn]

thanks for that feedback, interesting news indeed.
Do you happen to have any measured data for that scrolling improvement?

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Mir:
  New
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

I've installed the packages from https://launchpad.net/~ci-train-ppa-
service/+archive/ubuntu/landing-019/ on my device, and it seems to have
significantly improved scrolling in the browser

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Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Mir:
  New
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

Freiza has been slow since the day I received my device, although I
don't recall what image I first used on it.

It's interesting that there are issues with EGL sync fences - I'm pretty
sure we're using these in Oxide on this device. They're blacklisted on
krillin with the comment "Testing fences was broken on Mali ES2 drivers"
and links to 2 private bugs and 2 public bugs of questionable relevance
(https://bugs.chromium.org/p/chromium/issues/detail?id=373360 and
https://bugs.chromium.org/p/chromium/issues/detail?id=371530)

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Mir:
  New
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Daniel van Vugt]

I'm not familiar with Frieza so can't test any of this myself...

If the problem is eglSwapBuffers taking two frames, then that's the same
kind of thing we saw in bug 1563287. Even though we measured the client
(Unity8 itself) was taking two frames, the problem was actually the
server (USC) being so slow that every client swap took 2-3 frames. It's
quite reasonable to imagine bug 1563287 would also manifest in client
=web-browser and server=unity8.

So I suggest trying the fix for bug 1563287 as soon as it's out. Kevin's
fix for that also explicitly mentions frieza

Secondly, what's the oldest working image for frieza? Was it ever fast
or never been?

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Mir:
  New
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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Re: [Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[John McAleely]

OpenGLES will report a version (containing the string rXpX for a mali
driver). that can be cross checked against malideveloper.com to learn their
age.

On 20 April 2016 at 17:17, kevin gunn  wrote:

> Does anyone know the circa of these gpu drivers?
> my assumption is we take a snapshot of their android bsp to get them, but
> do we know if they are latest and greatest?
>
> we're kinda of at the libhybris/gpu level now - so just thought it's
> possible there's driver bug fixes we may benefit from
> anyone know?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1550371
>
> Title:
>   Webbrowser slow scroll and artifact rendering on freiza
>
> Status in Canonical System Image:
>   Confirmed
> Status in Mir:
>   New
> Status in Oxide:
>   Invalid
> Status in webbrowser-app package in Ubuntu:
>   Invalid
>
> Bug description:
>   Copied from private avila bug:
> https://bugs.launchpad.net/avila-private/+bug/1547569
>   STEPS:
>   1. Install the latest image
>   2. Open the browser
>   3. Goto ubuntu.com
>   4. Wait for the page to load
>   5. Scroll the page
>
>   EXPECT
>   Smooth scrolling and rendering as seen on arale and krillin
>
>   ACTUAL:
>   Very slow render time on most site with a lot of content
>   Scrolling is glitchy and seems to want to fresh render each page as it
> is scrolled
>
>   This is most prominently seen on ubuntu.com but also ebay and amazon
>   webapps.
>
>   Webbrowser seems to display the issue the most although I beleive it
>   is more likely to be the graphics stack somewhere, tvoss believe that
>   perfservice will hopefully solve the issue.
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions
>

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Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Mir:
  New
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[kevin gunn]

Does anyone know the circa of these gpu drivers?
my assumption is we take a snapshot of their android bsp to get them, but do we 
know if they are latest and greatest?

we're kinda of at the libhybris/gpu level now - so just thought it's possible 
there's driver bug fixes we may benefit from
anyone know?

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Mir:
  New
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[kevin gunn]

@dbarth - so did someone run the exact same gl/egl call sequence on android and 
prove that the behavior is not exhibited?
i do not see that data here. so we're just making guesses.

@john-mc - i agree a distilled c-app would probably be beneficial

** No longer affects: unity8 (Ubuntu)

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Mir:
  New
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[David Barth]

And based on John's earlier remark, ie that the same HW and drivers do
perform properly with another OS, then it means that Ubuntu components
between apps and driver/HW are introducing that extra 20/40ms delay. Mir?
Unity8? Something else?

On Tue, Apr 19, 2016 at 8:47 PM, Chris Coulson 
wrote:

> The main reason Oxide is slow is because the browser's UI thread is
> being blocked for long periods of time due to an issue *outside* of
> Oxide.
>
> As a quick test, I just ran the address book app with
> QSG_RENDER_TIMING=1, and it demonstrates exactly the same issue as the
> browser - the render thread regularly being blocked for over 20ms and
> sometimes up to 40ms in eglSwapBuffers, which causes the UI thread to be
> blocked, eg:
>
> qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop
> in 41ms, sync=0, render=5, swap=35 - (on render thread)
> qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop,
> polish=0, lock=0, blockedForSync=36, animations=0 - (on Gui thread)
> QQuickView(0x385ef0)
>
> Scrolling in address book app is also very janky (like with every other
> app and the shell on my M10). I'm not the only person seeing this, am I?
>
> --
> You received this bug notification because you are a bug assignee.
> https://bugs.launchpad.net/bugs/1550371
>
> Title:
>   Webbrowser slow scroll and artifact rendering on freiza
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions
>


** Also affects: mir
   Importance: Undecided
   Status: New

** Also affects: unity8 (Ubuntu)
   Importance: Undecided
   Status: New

** Changed in: webbrowser-app (Ubuntu)
 Assignee: Olivier Tilloy (osomon) => (unassigned)

** Changed in: canonical-devices-system-image
 Assignee: David Barth (dbarth) => kevin gunn (kgunn72)

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Mir:
  New
Status in Oxide:
  Invalid
Status in unity8 package in Ubuntu:
  New
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

Just to make sure it wasn't a one off with the address book app, I did
it again. Here's a few more data points from the log:

qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=1
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
8ms, sync=0, render=1, swap=7 - (on render thread)
qt.scenegraph.time.renderer: time in renderer: total=6ms, preprocess=0, 
updates=0, binding=0, rendering=6
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
115ms, sync=0, render=6, swap=109 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=120, animations=0 - (on Gui thread) 
QQuickView(0x385ef0)
qt.scenegraph.time.renderer: time in renderer: total=2ms, preprocess=0, 
updates=0, binding=0, rendering=1
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
13ms, sync=0, render=2, swap=11 - (on render thread)
qt.scenegraph.time.texture: plain texture uploaded in: 0ms (26x26), bind=0, 
convert=0, swizzle=0 (BGRA->BGRA), upload=0, mipmap=0
qt.scenegraph.time.renderer: time in renderer: total=3ms, preprocess=0, 
updates=0, binding=0, rendering=3
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=41, animations=0 - (on Gui thread) 
QQuickView(0x385ef0)
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
29ms, sync=0, render=4, swap=25 - (on render thread)
qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=1
APP_ID isn't set, the handler ignored
ubuntumirclient: Got invalid serialized mime data. Ignoring it.
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
40ms, sync=0, render=1, swap=39 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=21, animations=0 - (on Gui thread) 
QQuickView(0x385ef0)
qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=1
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
41ms, sync=0, render=1, swap=39 - (on render thread)
qt.scenegraph.time.renderer: time in renderer: total=0ms, preprocess=0, 
updates=0, binding=0, rendering=0
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=38, animations=0 - (on Gui thread) 
QQuickView(0x385ef0)
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
40ms, sync=0, render=1, swap=39 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=32, animations=0 - (on Gui thread) 
QQuickView(0x385ef0)
qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=1
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
42ms, sync=0, render=2, swap=40 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=36, animations=0 - (on Gui thread) 
QQuickView(0x385ef0)
qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=1
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
36ms, sync=0, render=1, swap=34 - (on render thread)
qt.scenegraph.time.renderer: time in renderer: total=0ms, preprocess=0, 
updates=0, binding=0, rendering=0
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=33, animations=0 - (on Gui thread) 
QQuickView(0x385ef0)
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
32ms, sync=0, render=1, swap=31 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=24, animations=0 - (on Gui thread) 
QQuickView(0x385ef0)
qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=1
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
35ms, sync=0, render=2, swap=33 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=29, animations=0 - (on Gui thread) 
QQuickView(0x385ef0)
qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=1
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
36ms, sync=0, render=3, swap=32 - (on render thread)
qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=0
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=33, animations=0 - (on Gui thread) 
QQuickView(0x385ef0)
qt.scenegraph.time.renderloop: Frame 

[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

The main reason Oxide is slow is because the browser's UI thread is
being blocked for long periods of time due to an issue *outside* of
Oxide.

As a quick test, I just ran the address book app with
QSG_RENDER_TIMING=1, and it demonstrates exactly the same issue as the
browser - the render thread regularly being blocked for over 20ms and
sometimes up to 40ms in eglSwapBuffers, which causes the UI thread to be
blocked, eg:

qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
41ms, sync=0, render=5, swap=35 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=36, animations=0 - (on Gui thread) 
QQuickView(0x385ef0)

Scrolling in address book app is also very janky (like with every other
app and the shell on my M10). I'm not the only person seeing this, am I?

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[David Barth]

Oxide only runs on Ubuntu.

But that's still a valid question : if that GPU was to expose such a
slowdown on another OS (Android say), the upstream Blink code would
probably have marked it with a quirk or blacklist to signal the bad
performance of the driver.

So either we end up calling glBindFramebufferEXT in a context quite
different from the Android one, exposing an unknown driver bug. Or there
is something making that context quite different like Mir or Unity ?

@ChrisCoulson or @gerboland: could one of you guys have a try at
distilling that into a C test case?

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[John McAleely]

Until this is a repro written only in C linking the OpenGLES & EGL
libraries (and glibc or bionic), no gpu vendor will take it very
seriously. No-one appears to have addressed my comment in #18 - why does
oxide not see this when it meets this GPU on other OS platforms?

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Daniel van Vugt]

** Tags added: performance

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[David Barth]

** Changed in: canonical-devices-system-image
Milestone: ww08-2016 => 11

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[David Barth]

loicm kindly pointed me to his qml magnifier demo which should help
expose the FBO performance issue and clarify where the problem is:

https://developer.ubuntu.com/en/blog/2015/04/28/magnifying-glass-qml/

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Gerry Boland]

I agree with Chris' assessment. eglSwapBuffers blocking for so long
(over 32ms, i.e. 2 frames at 60Hz) is causing Qt's main loop to block,
compounding the stutter.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[John McAleely]

So Oxide (well, chrome proper) has run on this GPU family in both native
(Samsung Chromebook) and Android forms (Nexus 10), and perhaps others.

Does this bug occur there too? Or is it somehow only emergent on our
stack only?

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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

Marking the Oxide task invalid for now - I've split out Oxide issues in
to new bugs

** Changed in: oxide
   Status: Triaged => Invalid

** Changed in: oxide
 Assignee: Chris Coulson (chrisccoulson) => (unassigned)

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Invalid
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

I ran the browser with QSG_RENDER_TIMING=1, and I see timings like this:

qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
30ms, sync=0, render=2, swap=28 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=14, animations=0 - (on Gui thread) 
BrowserWindow_QMLTYPE_1_QML_207(0xab14ee20)
qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=1
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
39ms, sync=0, render=1, swap=37 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=27, animations=0 - (on Gui thread) 
BrowserWindow_QMLTYPE_1_QML_207(0xab14ee20)
qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=1
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
39ms, sync=0, render=1, swap=37 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=25, animations=0 - (on Gui thread) 
BrowserWindow_QMLTYPE_1_QML_207(0xab14ee20)
qt.scenegraph.time.renderer: time in renderer: total=4ms, preprocess=0, 
updates=0, binding=2, rendering=1
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
39ms, sync=0, render=5, swap=34 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=26, animations=0 - (on Gui thread) 
BrowserWindow_QMLTYPE_1_QML_207(0xab14ee20)
qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=1
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
40ms, sync=0, render=1, swap=38 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=29, animations=0 - (on Gui thread) 
BrowserWindow_QMLTYPE_1_QML_207(0xab14ee20)
qt.scenegraph.time.renderer: time in renderer: total=3ms, preprocess=0, 
updates=0, binding=0, rendering=3
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
27ms, sync=2, render=4, swap=21 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=10, animations=0 - (on Gui thread) 
BrowserWindow_QMLTYPE_1_QML_207(0xab14ee20)
qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=1
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
25ms, sync=0, render=2, swap=22 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=10, animations=0 - (on Gui thread) 
BrowserWindow_QMLTYPE_1_QML_207(0xab14ee20)
qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=1
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
34ms, sync=0, render=1, swap=32 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=19, animations=0 - (on Gui thread) 
BrowserWindow_QMLTYPE_1_QML_207(0xab14ee20)
qt.scenegraph.time.renderer: time in renderer: total=4ms, preprocess=0, 
updates=0, binding=0, rendering=4
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
32ms, sync=0, render=5, swap=27 - (on render thread)
qt.scenegraph.time.renderer: time in renderer: total=1ms, preprocess=0, 
updates=0, binding=0, rendering=1
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=19, animations=0 - (on Gui thread) 
BrowserWindow_QMLTYPE_1_QML_207(0xab14ee20)
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
27ms, sync=0, render=1, swap=25 - (on render thread)
qt.scenegraph.time.renderloop: Frame prepared with 'threaded' renderloop, 
polish=0, lock=0, blockedForSync=12, animations=0 - (on Gui thread) 
BrowserWindow_QMLTYPE_1_QML_207(0xab14ee20)
qt.scenegraph.time.renderer: time in renderer: total=2ms, preprocess=0, 
updates=0, binding=0, rendering=2
qt.scenegraph.time.renderloop: Frame rendered with 'threaded' renderloop in 
25ms, sync=0, render=3, swap=22 - (on render thread)

It looks like the main thread blocks regularly (see the blockedForSync
timings), confirming my suspicion in comment 8. This is probably because
the render thread is blocked in eglSwapBuffers (often for more than
16ms), and the main thread is the one that initiates a sync by posting a
task to the render thread and then waiting for it to complete.

I think I'm convinced the main issues here aren't Oxide bugs.

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[David Barth]

I pinged the commercial team to ask about a possible driver update

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

I added some more trace events and confirm that the issue shown in the
trace in comment 11 is occurring during this call to
glBindFramebufferEXT, right here:

https://git.launchpad.net/~oxide-
developers/oxide/+git/chromium/tree/gpu/command_buffer/service/gles2_cmd_decoder.cc?id=31a49d82d9c36d5f18095aa6fe0f03ed5fc0905e#n4676

I've no idea why that would take so long, but this is driver stuff now.

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

Note, somebody else needs to take a look at this now...

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

I've reported bug 1553302 as well now.

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

And a photo of a trace showing the issue in comment 9

** Attachment added: "IMAG0223.jpg"
   
https://bugs.launchpad.net/oxide/+bug/1550371/+attachment/4588514/+files/IMAG0223.jpg

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

This is a photo of a trace that shows the issue in comment 8

** Attachment added: "IMAG0222.jpg"
   
https://bugs.launchpad.net/oxide/+bug/1550371/+attachment/4588513/+files/IMAG0222.jpg

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

I'm also regularly seeing GLES2DecoderImpl::RestoreFramebufferBindings
block the GPU thread for in excess of 20ms, which is weird. All it's
doing is basically calling glBindFramebufferEXT

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

I added a few trace events in Oxide earlier that would aid debugging in
chrome://tracing/. Unfortunately, there's no way to save the trace from
the browser for offline viewing (as it's incompatible with the way we do
downloads) and I can't take a screenshot of it because screenshots on
Freiza are broken.

I'll try to describe the first main observation:

1) After the webview compositor has finished producing a frame, it calls in to 
oxide::CompositorSingleThreadProxy::SwapCompositorFrame.
2) At this point, we insert a fence in the command stream and flush.
3) After the fence is signalled, we run 
oxide::CompositorSingleThreadProxy::ContinueSwapGLFrame.
4) This ends up entering QQuickItem::update for the webview, which schedules a 
sync.
5) At the end of the sync (OxideQQuickWebView::updatePaintNode), we call back 
in to the webview compositor to notify it that the swap has completed and that 
the old buffer can be used as the back buffer.

I've added a trace event to time how long it takes to get from 2 to 3 -
it's currently ~5-6ms. This is basically how long it takes the GPU
service to execute the commands that were just flushed for compositing
the webview, and isn't particularly out of the ordinary.

I've also added a trace event to time between 4 and 5, which is
basically timing how long it takes between scheduling an update and the
sync completing, and I'm seeing regular delays of up to 30ms. Within 5ms
of scheduling an update (calling QQuickItem::update), the main thread
appears to be completely blocked (although, I am only looking at
compositor events in chrome://tracing/).

Whilst there are optimizations we can work in Oxide, the main bottleneck
here appears to be something else.

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

Missing information in chrome://gpu/ is bug 1552657

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

So it seems that the required extensions are reported by the driver, but
they're not reported in chrome://gpu/. I'll report another bug for that.

I'm not sure what's going on with the current Oxide version (1.12) - I'm
not doing any debugging on that.

My trunk build of Oxide runs with accelerated compositing, but it's
using a share group when it shouldn't be - I've reported bug 1552376 for
that. It doesn't exhibit the out-of-order frames I see with Oxide 1.12,
but performance still isn't great.

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Dave Morley]

I assume any fix here will most likely work on other affected systems
like arale?

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Pat McGowan]

assigning back as it seems an oxide issue

** Changed in: canonical-devices-system-image
 Assignee: Yuan-Chen Cheng (ycheng-twn) => David Barth (dbarth)

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Thomas Voß]

As pointed out in, we should check why:

  EGL_KHR_image, EGL_KHR_image_base and EGL_KHR_gl_texture_2D_image

are not reported by the driver and rule out issues.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Pat McGowan]

** Changed in: canonical-devices-system-image
 Assignee: David Barth (dbarth) => Yuan-Chen Cheng (ycheng-twn)

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Olivier Tilloy]

** Changed in: webbrowser-app (Ubuntu)
   Status: Confirmed => Invalid

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Invalid

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

** Changed in: oxide
   Status: New => Triaged

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  Triaged
Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Chris Coulson]

Basically, we're falling back to software compositing on Freiza for a
couple of reasons:

- We don't set up a share context on devices where Chromium uses virtual GL 
contexts (essentially, all client-side GL contexts are backed by one single GL 
context on the GPU service side), as this is normally done to work around 
share-group related driver bugs.
- The graphics driver isn't advertising the extensions we require for the 
EGLImage compositing path (EGL_KHR_image, EGL_KHR_image_base and 
EGL_KHR_gl_texture_2D_image).

This means that neither of the 2 accelerated compositing paths that
Oxide has available currently work on this device.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  New
Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Pat McGowan]

Any updates?

** Changed in: canonical-devices-system-image
 Assignee: Pat McGowan (pat-mcgowan) => David Barth (dbarth)

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  New
Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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[Touch-packages] [Bug 1550371] Re: Webbrowser slow scroll and artifact rendering on freiza

[Olivier Tilloy]

** Changed in: oxide
   Importance: Undecided => Critical

** Changed in: oxide
 Assignee: (unassigned) => Chris Coulson (chrisccoulson)

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550371

Title:
  Webbrowser slow scroll and artifact rendering on freiza

Status in Canonical System Image:
  Confirmed
Status in Oxide:
  New
Status in webbrowser-app package in Ubuntu:
  Confirmed

Bug description:
  Copied from private avila bug: 
https://bugs.launchpad.net/avila-private/+bug/1547569
  STEPS:
  1. Install the latest image
  2. Open the browser
  3. Goto ubuntu.com
  4. Wait for the page to load
  5. Scroll the page

  EXPECT
  Smooth scrolling and rendering as seen on arale and krillin

  ACTUAL:
  Very slow render time on most site with a lot of content
  Scrolling is glitchy and seems to want to fresh render each page as it is 
scrolled

  This is most prominently seen on ubuntu.com but also ebay and amazon
  webapps.

  Webbrowser seems to display the issue the most although I beleive it
  is more likely to be the graphics stack somewhere, tvoss believe that
  perfservice will hopefully solve the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1550371/+subscriptions

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