hi,
i have 10 processes running on a tru64
machine with 16 cpu. when i am checking the states of these processes
with ps command, i saw that almost never more than 3 of them are in the
R(unning) state. (generally they are in the S(leeping) state).

although there are many other processes running on the same machine,
my expectation is to see most of my processes in the running state,
because top reports generally we have 20%-50% idle cpu,

even if they are waiting for some resource (e.g: io), they should be
in U(ninterruptable) state, am i wrong?

how can this sleeping state problem can be explained?