#!/usr/bin/python2.6

#

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import kstat.rad

import time

last = [ 0, 0, 0, 0 ]

flds = [ "cpu_nsec_idle", "cpu_nsec_user", "cpu_nsec_kernel", "cpu_nsec_intr" ]

frmt = "Idle: %.2f%%  User: %.2f%%  Kern: %.2f%%  Intr: %.2f%%"

def print_diff(prev, next):

	diffs = [ next[i] - prev[i] for i in range(4) ]

	total = sum(diffs)

	print frmt % tuple([ float(x) * 100 / total for x in diffs ])

stats = kstat.rad.Kstats()			# get kstat connection

cpu = stats.lookup("cpu", "sys", 0)		# get cpu 0's kstat object

while True:

	stats.update()				# update kstats

	s = cpu.value				# fetch new kstat

	this = [ s.get(x) for x in flds ]	# pick out interesting stats

	print_diff(last, this)			# pretty-print

	last = this				# new is now old

	time.sleep(1)				# wait