[gmpi] Re: Reqs 3.9. Time - opening arguments

  • From: "Martijn Sipkema" <m.j.w.sipkema@xxxxxxxxxxxxxxxxxx>
  • To: <gmpi@xxxxxxxxxxxxx>
  • Date: Mon, 2 Feb 2004 00:31:58 +0100

[...]
> UST *has* to be platform specific.  Is it milliseconds?  microseconds?
> processor cycles?  There is no global definition of a UST.

I think SGI invented UST/MSC sync for the dmedia library. Perhaps these
links might be useful:

http://www.lurkertech.com/lg/time/intro.html
http://www.khronos.org/openml/

The quality of the available clock depends on the hardware of course.

UST is a signed 64 bit integer with nanosecond resolution (and some
min. accuracy and max. drift).

--ms





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