Marking as won't fix as there is a completely new design for this.
** Changed in: unity8 (Ubuntu)
Status: Triaged => Won't Fix
** Changed in: canonical-devices-system-image
Status: Confirmed => Won't Fix
** Changed in: canonical-devices-system-image
Assignee: kevin gunn
** Changed in: unity8 (Ubuntu)
Assignee: Albert Astals Cid (aacid) => (unassigned)
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Title:
Dash pauses/stutters during scope switching
Yes, i'm aware of this long polish times, it's just that you won't "see"
them if you wait enough time between switching from scope to scope.
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@Albert and @Kevin: please find the full log attached.
I had a quick look, the main thread is chocking on the polish phase.
So it seems a layout performance problem, unless we're using Canvas in the QML
code (Canvas does the rendering in the polish method, iirc)
Examples from the log:
3.4
There is a chance the [PERFORMANCE] logger needs some
tweaking/debugging.
I have just tried rebooting the phone.
I had multiple half-second or full-second freezes when horizontally
scrolling between scopes, yet the [PERFORMANCE] logger only reported 3-4
"69ms to render" or "75ms to render" which
> stutters "when the scope views are not launched/cached yet" is this
something we have ideas for?
I just don't get it to stutter anymore with the default scopes, i'm
going to need help reproducing it so it can be fixed.
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> It definitely stutters on Krillin, rc-proposed, r356, especially when
the scope views are not launched/cached yet.
Which scopes? It's really smooth here with the default scopes after a reboot.
Can you check the "[PERFORMANCE]: Last frame took" in /unity8-dash.log? How
many if any at all do you
stutters "when the scope views are not launched/cached yet" is this
something we have ideas for? or are we stuck with a particular threading
model here causing the rendering to get choked on the network & jpg
decode?
also @faenil I'd be interested in your numbers on "bad frame rate for
Music"
It definitely stutters on Krillin, rc-proposed, r356, especially when
the scope views are not launched/cached yet.
I also get consistently bad framerate on scopes such as the Music scope
(I have no music in the phone, so it's showing "New albums from
7Digital" and "Popular tracks on Soundcloud",
Can someone test this in a recent rc-proposed?
Not much ago a fix to the glyph generation went in
https://code.launchpad.net/~aacid/qtubuntu/turbo_workaround/+merge/294531 (and
prerequisites)
and that fixes the stutering between scopes for me, but since stuttering
is always a bit depending on
Can someone test this in a recent rc-proposed?
Not much ago a fix to the glyph generation went in
https://code.launchpad.net/~aacid/qtubuntu/turbo_workaround/+merge/294531 (and
prerequisites)
and that fixes the stutering between scopes for me, but since stuttering
is always a bit depending on
from bug that was duplicated. one important comment i'd like to make sure gets
highlighted here is
https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1497611/comments/7
also, wrt
https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1497611/comments/9
that is something for the design team,
Other way round. This bug is older and has more detail/history. De-
duplicate under this one.
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Title:
Dash pauses/stutters during scope
also, do we want to consolidate/consider this bug a dupe under bug
1497611
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Title:
Dash pauses/stutters during scope switching left/right
To
@tsdgeos - let's just consider this covered under the kpi effort, loop
back and update with results
** No longer affects: unity8 (Ubuntu RTM)
** Changed in: unity8 (Ubuntu)
Assignee: (unassigned) => Albert Astals Cid (aacid)
** Changed in: canonical-devices-system-image
Importance:
** Changed in: canonical-devices-system-image
Status: New => Confirmed
** Changed in: canonical-devices-system-image
Assignee: (unassigned) => Stephen M. Webb (bregma)
** Changed in: canonical-devices-system-image
Assignee: Stephen M. Webb (bregma) => kevin gunn (kgunn72)
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** Also affects: canonical-devices-system-image
Importance: Undecided
Status: New
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Title:
Dash pauses/stutters during scope switching
** Tags added: performance
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Title:
Dash pauses/stutters during scope switching left/right
To manage notifications about this bug go to:
** No longer affects: canonical-devices-system-image
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Title:
Dash pauses/stutters during scope switching left/right
To manage notifications
Since we have no plans to start working on this soon i'll unassign
myself in case someone else wants to take this. I'm still subscribed to
all the comments though.
** Changed in: unity8 (Ubuntu)
Assignee: Albert Astals Cid (aacid) = (unassigned)
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** Changed in: canonical-devices-system-image
Assignee: Kevin Gunn (kgunn) = kevin gunn (kgunn72)
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Title:
Dash pauses/stutters during scope
Google Profiler is a good option. Unlike most profilers it actually
measures real time, so if a delay is due to a blocking (but CPU-idle)
call then Google Profiler will find it.
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Right, IMO this should be pulled off the RTM list for now.
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Title:
Dash pauses/stutters during scope switching left/right
To manage
We don't have immediate improvements in store for this I'm afraid. It
will require further, deep, analysis on what's the blocking part in this
situation. It also depends on the design direction we'll go for wrt
dash/home.
** Changed in: canonical-devices-system-image
Status: Confirmed =
while we may not have a solution this remains a critical issue I am
surprised there is no way to speed at least the perception of the scope
loading or offload to other threads as discussed
** Changed in: canonical-devices-system-image
Milestone: ww09-2015 = None
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while we may not have a solution this remains a critical issue I am
surprised there is no way to speed at least the perception of the scope
loading or offload to other threads as discussed
We've already offloaded everything we could identify, which improved the
situation a lot. We now need to
** Changed in: canonical-devices-system-image
Milestone: ww07-2015 = ww09-2015
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Title:
Dash pauses/stutters during scope switching
** Changed in: canonical-devices-system-image
Assignee: Canonical Devices Products (canonical-devices-products-team) =
Kevin Gunn (kgunn)
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** Changed in: canonical-devices-system-image
Status: New = Confirmed
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Title:
Dash pauses/stutters during scope switching left/right
To
** Changed in: canonical-devices-system-image
Milestone: ww51-2014 = ww07-2015
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Title:
Dash pauses/stutters during scope switching
BTW, for detecting blocking (which may occupy zero CPU time), I've found
Google Profiler is the only open source tool that actually gives useful
answers (apt-get install google-perftools).
All other open source profilers tend to track CPU cycles, which is not
helpful when dealing with real time
** Changed in: unity8 (Ubuntu RTM)
Milestone: 14.09-ota-1 = 14.09-ota-2
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Title:
Dash pauses/stutters during scope switching left/right
To
** Branch unlinked: lp:~unity-team/unity8/rtm-20150108
** Changed in: unity8 (Ubuntu RTM)
Status: In Progress = New
** Changed in: unity8 (Ubuntu RTM)
Assignee: Michał Sawicz (saviq) = (unassigned)
** Changed in: unity8 (Ubuntu)
Status: Fix Released = Triaged
** Changed in:
After having another look at this we'll need more time to investigate
and find the right balance and a solution.
What you can see currently, the worse experience is happening when you swipe
between scopes for the first time after the dash is loaded. This is because
when you swiped from scope #1
** Changed in: unity8 (Ubuntu RTM)
Status: Triaged = In Progress
** Changed in: unity8 (Ubuntu RTM)
Assignee: (unassigned) = Michał Sawicz (saviq)
** Changed in: canonical-devices-system-image
Status: Confirmed = In Progress
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** Branch linked: lp:~unity-team/unity8/rtm-20150108
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Title:
Dash pauses/stutters during scope switching left/right
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** Branch linked: lp:ubuntu/vivid-proposed/unity8
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Title:
Dash pauses/stutters during scope switching left/right
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This bug was fixed in the package unity8 - 8.01+15.04.20141202-0ubuntu1
---
unity8 (8.01+15.04.20141202-0ubuntu1) vivid; urgency=low
[ Michael Terry ]
* Make sure that there is no window of opportunity for swiping away
greeter before the lockscreen appears.
* Don't allow
** Changed in: unity8 (Ubuntu RTM)
Status: New = Triaged
** Changed in: unity8 (Ubuntu RTM)
Importance: Undecided = High
** Changed in: unity8 (Ubuntu RTM)
Milestone: None = 14.09-ota-1
** Branch linked: lp:~aacid/unity8/asyncCroppedImageSizer
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** Changed in: canonical-devices-system-image
Importance: Undecided = High
** Changed in: canonical-devices-system-image
Status: New = Confirmed
** Changed in: canonical-devices-system-image
Milestone: None = r1
** Changed in: canonical-devices-system-image
Assignee:
** Changed in: unity8 (Ubuntu)
Importance: High = Critical
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Title:
Dash pauses/stutters during scope switching left/right
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** Also affects: unity8 (Ubuntu RTM)
Importance: Undecided
Status: New
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Title:
Dash pauses/stutters during scope switching left/right
** Branch linked: lp:~unity-team/unity8/rtm-dash-staging
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Title:
Dash pauses/stutters during scope switching left/right
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** Branch linked: lp:~aacid/unity8/moreAsyncDash
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Title:
Dash pauses/stutters during scope switching left/right
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** Tags removed: touch-2014-10-30
** Tags added: ota-1
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Title:
Dash pauses/stutters during scope switching left/right
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isn't that this lp:~unity-team/unity8/flickables-speed-workaround ?
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Title:
Dash pauses/stutters during scope switching left/right
To manage
Unlikely. This bug was discovered two weeks after that branch had
already landed.
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Title:
Dash pauses/stutters during scope switching left/right
** Tags added: rtm14 touch-2014-10-30
** Changed in: unity8 (Ubuntu)
Importance: Undecided = High
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Title:
Dash pauses/stutters during scope
** Changed in: unity8 (Ubuntu)
Assignee: (unassigned) = Albert Astals Cid (aacid)
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Title:
Dash pauses/stutters during scope switching
This happens especially on boot, when moving between scopes causes other
scopes to load their content. Creation of the delegates seems to cause
the UI thread to block.
** Changed in: unity8 (Ubuntu)
Status: New = Triaged
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