Re: Make condition variables take absolute wakeup time

[der Mouse <mouse%Rodents.Montreal.QC.CA@localhost>]

> These days, does hz >> 2 ever generate better code than hz / 4?

<kernel.h> says hz is signed, so, if shifts are faster than divides, I
would expect >>2 to be faster than /4.  If the hardware doesn't have a
signed-integer divide but does have shifts (eg, least common
denominator sparc32), >>2 should be smaller than /4 too.

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