On Thu, 2 Mar 2000, Boris Okun wrote:
>Another question, why do we bother updating xtime on timer interrupts,
>when we can do it
>in do_gettimeofday only?(I assume using TSC).
Most of the time you need only to know the seconds information. So you
want to use the fast CURRENT_TIME for that. Also think
gettimeofday/CURRENT_TIME can be called houndred of times per timer irq so
it really worth to take the slow stuff in the timer irq than in a fast
path like gettimeofday.
Andrea
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