Page 140 - slides.dvi
P. 140
•
•
•
Unix
–
–
–
–
–
–
Case
∗
∗
∗
∗
∗
∗
∗
But
Main
Later
file
a
I/O:
IPC:
Study—
can
(not
over
Unix
base
Summary
file
Unix
dynamic
priority
is
concurrency.
directed
V7
pipes
block
hierarchical
versions
Summary
is
time,
an
really
heavy-weight
&
priority
had
and
abstraction
priority
the
features
recursively
true
acyclic
level
address
lowered
signals
for
are:
past
if
namespace
for
processes
is
graph
mount
inflexible
character
these
unstructured
all
(if
scheduling
device
IPC,
process
and
issues.
forgotten
gets
exclude
filesystems
sequence
processes
to
of
soft
inefficient
run
directory
bytes
links)
files)
memory
management,
and
poor
kernel
136