Speaking of
Dhrystones.... what is one?
Also, what does the MHz, or GHz, measure
exactly?
When one specifies or discusses a cpu and the associated clock speed in
MHz or GHz, I would assume one is referring to the cpu clock, something
which can be measured by a frequency counter on a specified pin, and
probably set in in the BIOS, or on older machines, by dip switches, or
on still older machines, set by the manufacturer.
But as said, it's utterly meaningless. The only thing that matters is whether
the CPU is fast enough for the required application(s)...