Paul E. McKenney b5a2801fc0 refscale: Add a "jiffies" test ...

This commit adds a "jiffies" test to refscale, allowing use of jiffies
to be compared to ktime_get_real_fast_ns().  On my x86 laptop, jiffies
is more than 20x faster.  (Though for many uses, the tens-of-nanoseconds
overhead of ktime_get_real_fast_ns() will be just fine.)

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

2023-07-14 15:01:04 -07:00

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