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[jeramy smith <657976@xxxxxxxxxxxxxxxxxx>]

here is the gma 950 running metacity
jeramy@jubuntu:~$ glxgears
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
87 frames in 5.0 seconds = 17.298 FPS
158 frames in 5.0 seconds = 31.352 FPS
69 frames in 5.1 seconds = 13.571 FPS
63 frames in 5.0 seconds = 12.557 FPS
92 frames in 5.0 seconds = 18.340 FPS

now, start the intel_gpu_top in another window and re-run
jeramy@jubuntu:~$ glxgears
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
303 frames in 5.0 seconds = 60.591 FPS
306 frames in 5.0 seconds = 61.147 FPS
306 frames in 5.0 seconds = 61.147 FPS
306 frames in 5.0 seconds = 61.149 FPS
306 frames in 5.0 seconds = 61.146 FPS

So, in theory, someone might be able to fix their Unity problem by
running a daemonized intel_gpu_top (or set it  running in a detached
screen automatically). That is not a great workaround, but it might
work.

I have this behavior with both the current Ubuntu 10.10 kernel and with
the Natty backport kernel for LTS. So there are no fixes to intel drm at
the kernel level that fix this issue right now in any released/proposed
packaged kernel.

I have not tried different driver versions since the latest xorg intel
driver is basically unusable on the GMA 950.

To recap: Unity slowness on GMA 950 (the chip in tons of awesome
netbooks that shouldn't be overlooked) is probably due to drm or xorg
issues that aren't obvious to me at the moment. There might be an
existing bug against intel-drm in the kernel or against the xorg intel
driver for this very problem.

-- 
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which is a direct subscriber.
https://bugs.launchpad.net/bugs/657976

Title:
  [Intel GMA 945/950] Unity Interface Is Extremely Slow (Ubuntu Netbook 10.10)