Para expandir a resposta de Doug, observe os estados dos processos. Todos, exceto os três processos destacados, estão no estado S e os três processos destacados estão no estado R . Os estados do processo são apresentados na seção 3a, item 20 da top manpage :
20. S -- Process Status
The status of the task which can be one of:
D = uninterruptible sleep
R = running
S = sleeping
T = traced or stopped
Z = zombie
Tasks shown as running should be more properly thought of as
'ready to run' -- their task_struct is simply represented on
the Linux run-queue. Even without a true SMP machine, you may
see numerous tasks in this state depending on top's delay
interval and nice value.
Para alternar esse destaque, pressione y :
y :Row-Highlight toggle
Changes highlighting for "running" tasks. For additional
insight into this task state, see topic 3a. DESCRIPTIONS of
Fields, the 'S' field (Process Status).
Use of this provision provides important insight into your
system's health. The only costs will be a few additional
tty escape sequences.