CPU report in first line of "vmstat 1" is meaningless

[Dan Nelson]

In the last episode (Oct 18), Ed Maste said:
> The us/sy/id CPU usage numbers in the first line of vmstat are not useful,
> because they're calculated based on kern.cp_times since boot, and not a
> delta as are all subsequent lines.  If the system has been up long enough
> wrapping may come in to play, giving negative results.  For example, on
> one machine I see:

Maybe only blank it out on 32-bit machines?  It's a long, and a 64-bit
cp_time value essentially won't roll over (at 1 billion increments per
second it will roll over in 500 years; we currently increment 133 times per
second, I think).  If the value can be calculated accurately, it should be
printed.

-- 
	Dan Nelson
	dnelson at allantgroup.com