Page 24 - slides.dvi

•
•
•
•
–
–
Operating
Job
Wait
Job
Ready
CPU
CPU
Systems
—
to
Long-term
Scheduling
Queue:
&
it.
Queue:
Process
Queue(s):
scheduler
scheduler
set
Job
batch
create
(batch)
Queue
set
Life-cycle
of
Queues
of
selects
create
all
short-term
decides
(interactive)
processes
admit
which
which
processes
processes
event
schedulers:
awaiting
process
waiting
processes
residing
for
Ready Queue
in
an
should
should
Wait Queue(s)
admission.
be
be
main
I/O
dispatch
CPU
event-wait
timeout or yield
device
brought
memory,
executed
(or
release
into
next
for
ready
the
to
and
other
ready
execute.
allocates
queue.
processes)
20
the