Process and Thread Context Switch benchmark

Hi,

How much in the best and worst case scenario does it take to Win NT to
switch contexts between two threads in the same process and between two
threads from different processes? Where can I find info or benchmarks for
this?

Thanks,

G.

“For those who bear the instruments of war - and we are among them,
Some in practice,
Some by a hug of approval -
Are sucked, mumbling “necessity” and “vengeance”,
Into the domain of war crimes.”

Nathan Alterman, 1948