You don't need to have 64-bit jiffy for things like internal
timers, nor for uptime tracking.
Timers have well behaving constructs to use 32-bit jiffy quite
successfully, and 64-bit values, especially atomicish, in 32-bit
register-poor machines (i386) are damn difficult.
I do have a number of machines with 100 to 300 day uptimes, all
with "mere" 32-bit jiffy. With 1000 Hz clock that means at least
one full wrap-around of jiffy.
> --
> vda
/Matti Aarnio
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