[Bug 46213] [865G] Low framerate with glxgears and general low performance

[Bug 46213] [865G] Low framerate with glxgears and general low performance

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https://bugs.freedesktop.org/show_bug.cgi?id=46213

Chris Wilson <chris@chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|idr@freedesktop.org         |dri-devel@lists.freedesktop
                   |                            |.org
          Component|Drivers/DRI/i915            |Drivers/DRI/i830

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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https://bugs.freedesktop.org/show_bug.cgi?id=46213

--- Comment #1 from Chris Wilson <chris@chris-wilson.co.uk> 2012-02-18 11:39:17 UTC ---
To put your results in context, my 855gm achieves 470fps and 55fps fullscreen (1024x768). So I judge yours to be in line with what to expect from the hardware,
if a little subpar.

The secret with these gen2 devices is not to use GL at all! For instance, with video use the video overlay (by using Xv). And compiz is just going to be a
waste of time and energy.

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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https://bugs.freedesktop.org/show_bug.cgi?id=46213

Eric Anholt <eric@anholt.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |NOTABUG

--- Comment #2 from Eric Anholt <eric@anholt.net> 2012-03-02 17:52:23 PST ---
The numbers in this report talking about glxgears just reflect surprise at
vsync.  It is an intentional choice to avoid tearing, and not something we will
change by default.  If you're excited about seeing tearing in your apps and
rendering frames you'll never see, you can disable vsync in driconf.

If you can come up with a specific application that is using CPU where it
didn't before and a sysprof profile showing that CPU usage (and probably
INTEL_DEBUG=fallback output explaining the software fallback), then we might be
able to do something.

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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https://bugs.freedesktop.org/show_bug.cgi?id=46213

--- Comment #3 from piranna@gmail.com 2012-03-03 02:39:43 PST ---
Created attachment 57960
  --> https://bugs.freedesktop.org/attachment.cgi?id=57960
Xorg.0.log

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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https://bugs.freedesktop.org/show_bug.cgi?id=46213

--- Comment #4 from piranna@gmail.com 2012-03-03 02:43:10 PST ---
Created attachment 57961
  --> https://bugs.freedesktop.org/attachment.cgi?id=57961
dmesg output (no drm.debug=0x06 option)

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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https://bugs.freedesktop.org/show_bug.cgi?id=46213

--- Comment #5 from piranna@gmail.com 2012-03-03 02:43:55 PST ---
Created attachment 57962
  --> https://bugs.freedesktop.org/attachment.cgi?id=57962
xorg.conf

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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https://bugs.freedesktop.org/show_bug.cgi?id=46213

--- Comment #6 from piranna@gmail.com 2012-03-03 02:45:54 PST ---
Created attachment 57963
  --> https://bugs.freedesktop.org/attachment.cgi?id=57963
xrandr --verbose

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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--- Comment #7 from piranna@gmail.com 2012-03-03 02:59:41 PST ---
Created attachment 57966
  --> https://bugs.freedesktop.org/attachment.cgi?id=57966
VBIOS dump

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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--- Comment #16 from Chris Wilson <chris@chris-wilson.co.uk> 2012-03-03 11:02:33 UTC ---
You need to find something that performs absymally due to a mistake in the
driver. Otherwise, we will continue to insist that everything is as good as it
is going to get on that hardware...

The best examples will be taken from your usual workloads as that will give the
greatest perceived improved, and that's the challenge you face.

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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--- Comment #8 from piranna@gmail.com 2012-03-03 03:09:48 PST ---
Sorry for answer so late, this is not my main computer (it's my parents one).

Ok, after some regular usage (reading mail, surfing web...) with System Monitor
at panel to see how system evolutes:

* CPU is always about 5-10% and system load about 0.5-1
* just moving the mouse CPU increases to 40%
* browser scrolling (Chromium 17.0.963.56) increase CPU to 80-100%
* loading a webpage with about 100 thumbnails freezes browser with CPU 100%
about two seconds
* Gnome Mahjongg gets frozen with CPU 100% at refreshing window when going from
windowed to maximized and viceversa for about 2 seconds

Also i'm thinking about try with old Ubuntu Live-CDs to look for when started
the regression.

I'll try to do the sysprof this afternoon (i need to learn to use it). Where
must i use the INTEL_DEBUG=fallback flag? As kernel parameter un Grub?

And no, i'm not excited about rendering frames i will not see ;-) I disabled
vsync just for try and it was the only thing that did relative small YouTube
videos (320x240) didn't drop frames and get frozen... :-/ I really would love
to have vsync back... :-D Oh, and i don't want to use compiz (i hate it and in
fact i'm using a plain no-effects Gnome panel desktop), maybe just some games
like Warmux or Quake 3 (this would be a good performance test to put in
perspective since my old P3 1.1GHz computer with an i815 graphic card played it
very good, i'll try later). Compiz was just an example that the graphic card
was enought powerful to use it without problems... :-)

P.D.: i've attached the pending log files. It keeps some with boot flags, i'll
try to upload later.

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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https://bugs.freedesktop.org/show_bug.cgi?id=46213

--- Comment #9 from piranna@gmail.com 2012-03-03 08:35:35 PST ---
Created attachment 57977
  --> https://bugs.freedesktop.org/attachment.cgi?id=57977
dmesg

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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--- Comment #10 from piranna@gmail.com 2012-03-03 09:20:29 PST ---
Created attachment 57978
  --> https://bugs.freedesktop.org/attachment.cgi?id=57978
Chromium scrolling

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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https://bugs.freedesktop.org/show_bug.cgi?id=46213

--- Comment #11 from piranna@gmail.com 2012-03-03 09:21:02 PST ---
Created attachment 57979
  --> https://bugs.freedesktop.org/attachment.cgi?id=57979
Mahjongg going from window to maximized

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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https://bugs.freedesktop.org/show_bug.cgi?id=46213

--- Comment #12 from piranna@gmail.com 2012-03-03 09:21:39 PST ---
Created attachment 57980
  --> https://bugs.freedesktop.org/attachment.cgi?id=57980
Mahjongg going from maximized to windowed

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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https://bugs.freedesktop.org/show_bug.cgi?id=46213

--- Comment #13 from piranna@gmail.com 2012-03-03 09:29:34 PST ---
Added attachements for dmesg with drm.debug=0x06 flag enabled and profilings of
Chromium scrolling (just this bug page) and maximizing and windowing Gnome
Mahjongg.

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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--- Comment #14 from Chris Wilson <chris@chris-wilson.co.uk> 2012-03-03 10:35:54 PST ---
In those examples, the driver is not the bottleneck.

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[Bug 46213] [865G] Low framerate with glxgears and general low performance

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https://bugs.freedesktop.org/show_bug.cgi?id=46213

--- Comment #15 from piranna@gmail.com 2012-03-03 10:49:52 PST ---
Should i do the tests with a fresh install of Ubuntu? What would be a good
example?

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