Mark Vojkovich writes:
 > 
 >    That's the accuracy of X's internal clock.  I suspect we could
 > call get time of day and give it to you in microseconds since most
 > platforms support that.  Those timestamps would have no relation
 > to X's normal times stamps like the ones in Events though.
 > 

I know form experience that gettiemofday() is not very accurate on
certain systems. I found systems where it is not even monotonic.
I had to patch GetTimeInMillis() to work around this. 
I frequently had problems with grabs not getting released any more
because of bogus timestamps.

Egbert.
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