[Mesa-dev] [PATCH] glx/dri3: Port LIBGL_SHOW_FPS=1 code from DRI2 to DRI3.

Keith Packard keithp at keithp.com
Tue Oct 28 13:53:33 PDT 2014

Kenneth Graunke <kenneth at whitecape.org> writes:

> Is UST expressed in a particular unit?  I thought it was just "monotonically 
> increasing" but otherwise meaningless.  At which point, our FPS would be 
> "frames per...something?" :)

UST in GL's extension is not defined, but Present uses microseconds. As
this is all hidden inside GL, we can depend on that.

keith.packard at intel.com
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