Idle time

[leonp at plris.com]

Hello, all.

	I should like to measure the CPU free time in my application which runs on 
MPC860.
	The obvious way seemed to me to look at the decrementer value each time I 
enter the idle task, while inside the idle task copy the decrementer value in 
the loop into intermediate variable. The difference will show how much time 
the CPU was in the idle task.
	The problem is, that I do not see any efficient way to do this. The "user 
extension" mechanism, if I understood it correctly, will add one routine to 
ALL task switches, thus I shall waste a lot (relatively) of time on a service 
function.
	If somebody can advice some more efficient decision, I shall be very glad.

Thanks.
-- 
Leon M.Pollak