dtrace users opinion solicited (timestamps)

[Andriy Gapon]

Thinking aloud - maybe we could always use one value of tsc_freq (or something
like max_tsc_freq). This wouldn't give us correct timestamps when TSC frequency
is changing, but it would give us something that is always proportional to TSC
value and thus has its properties - monotonicity in the first place.
And, of course, there is no problem when TSC frequency is constant.

-- 
Andriy Gapon