** No longer affects: compiz (Ubuntu)
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Title:
Unity makes 3D apps run much slower.
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** Also affects: unity
Importance: Undecided
Status: New
** Changed in: unity
Status: New => In Progress
** Changed in: unity
Assignee: (unassigned) => Daniel van Vugt (vanvugt)
** Changed in: compiz (Ubuntu)
Status: In Progress => Invalid
** Branch linked: lp:~vanv
On Sun, 13 Nov 2011, Daniel van Vugt wrote:
Another totally unrelated thing, but kind of related while you're looking
into the framebuffer object code.
I did some work about a month ago to fix the "flicker" artefact that
people saw when resuming from expo / on transformed screens because we
w
On Sun, 13 Nov 2011, Daniel van Vugt wrote:
> Thanks, I'll take a good look another day.
>
> Only one question: Is it acceptable to disable the panel blur for people
> who have non-standard unity plugin settings like me? (panel opacity < 1.0)
>
> Given panel opacity is meant to be 1.0, I don't *th
Thanks, I'll take a good look another day.
Only one question: Is it acceptable to disable the panel blur for people
who have non-standard unity plugin settings like me? (panel opacity < 1.0)
Given panel opacity is meant to be 1.0, I don't *think* that would be
breaking the unity design (?)
On
On Sun, 13 Nov 2011, Daniel van Vugt wrote:
> Also, disabling the blur when the dash is not visible would probably
> solve bug 865006.
>
Thanks Daniel.
The BackgroundEffectHelper class has a static list of active blur regions,
when that's zero, I'd say just don't bind the framebuffers (but you
Also, disabling the blur when the dash is not visible would probably
solve bug 865006.
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Title:
Unity makes 3D apps run much slower.
To manage not
Thanks Sam.
Confirmed the bug does go away when I disable UnityFBO::bind (),
UnityFBO::unbind and UnityFBO::paint. Of course, that disables all the
nice blurring, but now I get full frame rate from all apps (!)
I only had this bug in progress because I thought I had fixed it with
other compiz opt
I think that the framebuffer object implementation in unity might be the
cause of the slowness.
Currently, on every frame, we will bind and unbind a framebuffer object
to capture the entire screen into, and then paint the entire screen on
to the display every time the display is painted (at around
(I'm currently studying for exams, so I don't really have time to look
into this right now :( )
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Title:
Unity makes 3D apps run much slower.
To m
** Changed in: unity (Ubuntu)
Status: Confirmed => In Progress
** Also affects: compiz (Ubuntu)
Importance: Undecided
Status: New
** Changed in: compiz (Ubuntu)
Status: New => In Progress
** Changed in: compiz (Ubuntu)
Assignee: (unassigned) => Daniel van Vugt (vanvu
Status update:
I've found both this and bug 880707 are caused by a combination of Unity
getting slower in oneiric than natty, and compiz (which is unchanged)
being too inefficient to render such slow plugins smoothly. So in a way,
the trigger is Unity but the real bug is Compiz itself.
Regarding
@Rocko and anyone else affected. I've made a bug dealing with slow
degradation of desktop performance at bug 888039. Come join the party.
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Title:
** Changed in: unity (Ubuntu)
Assignee: (unassigned) => Daniel van Vugt (vanvugt)
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Title:
Unity makes 3D apps run much slower.
To manage not
@Rocko,
P.S. Chauncellor was going to log a bug about the gradual degradation problem
soon. Keep an eye on his bugs too.
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Title:
Unity makes 3D a
I know glxgears is a dirty word. That's why the test case uses
glxspheres. But the conclusions are the same.
My benchmarks were done without "Force full screen redraws (buffer swap)
on repaint".
Sorry if it seems like I hijacked the bug. I'm just trying to get this
(and similar) bugs resolved as
I have excellent bad news :)
Bug 880707 (the unsightly tearing) seems to have the same root cause. I
think there's a good chance both will be resolved by a single fix.
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>> ...we need to treat each bug as a separate bug...
You're hijacking my bug now? :(
BTW, I don't think glxgears is a good 3d benchmark - it was only ever
intended as a quick check that GLX was available. I believe glxspheres
is a much better benchmark, which is why it's included in virtualgl.
I
Here are my test results, though they are slightly skewed by the
improvement in the intel driver between natty and oneiric...
OS WMglxspheres glxgears
--- - --
natty Unity-3D 30 60
oneiric Unity-3D
Rocko, as per comment #53, we need to treat each bug as a separate bug.
Could you please log the deterioration issue as a new bug, unless
someone else already has?...
** Description changed:
TEST CASE:
1. Install VirtualGL from
http://sourceforge.net/projects/virtualgl/files/VirtualGL/2.2
I've seen the slowdown a few times since I last reported back. Once was
after I ran remote X sessions on the target computer from another
computer: when I returned to the target computer, it was running much
slower than normal. At other times it has happened when there are a fair
few applications r
After seeing that graph, perhaps it is a consistent problem (the
difference between unity in Natty and Oneiric is astonishing)... but the
issue I originally reported turned out to be a deterioration-in-
performance issue that sometimes persists across several reboots.
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And here is a nice graph from Achim's duplicate...
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/871640/+attachment/2534367/+files/unity_performance.pdf
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