That has nothing to do with optimising the syscall path, or avoiding the
kernel/user transition.
Optimising user-space gettimeofday() is worth a little attention because
a lot of select-loop based apps call it before and after each select().
Any program that's doing lots of calculations with a timer-driven
progress meter may also use it. Though timer signals can be used
instead.
Select loops also often do signal mask things -- are they worth the same
attention as gettimeofday()?
-- Jamie
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/