glxspheres64 is using 100% of the CPU. callgrind shows all of this is
spent in:
100% intelBitmap
|- 100% _swrast_Bitmap
|- 50% intelSpanRenderStart
|- 50% intelSpanRenderFinish
I'm a bit worried about "_swrast_Bitmap". Sounds like it's rendering in
software for some reason. Although glxspheres64 says:
Polygons in scene: 62464
Visual ID of window: 0x99
Context is Direct
OpenGL Renderer: Mesa DRI Intel(R) Sandybridge Desktop
3.464074 frames/sec - 3.865907 Mpixels/sec
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https://bugs.launchpad.net/bugs/944627
Title:
glxspheres runs very slowly in Precise (only 2-3 FPS)
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