Page 146 - slides.dvi
P. 146

2.
                 •
                        •
                                                                                                   1.
   NT
                                                                                                         NT
                                                                       •
                                                •
                                                                             •
                                                                                  •
                                     •
                                                     •
                                                                                       •
                                           •
                                                                                                   A
                                                                A
   Case
                                                     a
                                                                                       a
                                                                             a
                                           a
                                                                                  a
                                                            Each
                                                                                              Each
                               Threads
                                                                       one
                                                                                                         splits
            shared
   Study—
                                                                             set
                                                other
                                                                       or
                                                                thread
                               are:
                                                                                                               Processes
                                                                             of
                                                                                                         the
                                                                                                   process
                                                                                  virtual
                 lightweight:
                                           context
                                                                                       security
                                                            thread
                                                                                                   is
                        co-operative:
                                                                                              process
                                                                are
   Low-level
                                     (generally)
            virtual
                                                                       more
                                                     scheduling
                                                                                                               and
                        all
                                     an
                                                                                                   the
                                                            has:
                                           slot,
                                                                the
                                                                                              has:
                                                                                                         “virtual
                                                scheduling
                                                                                       token,
                                                                                  address
   Functions
                 require
                                                                             resources
                                                     state
                                                                                                   unit
                                           and
            address
                                                                unit
                                                                       threads.
                 less
                                                                                                   of
                        threads
                                                                of
                                                                                  space,
                        in
                                                                                                               Threads
                                     associated
                                                                             (object
                                                     (ready,
                        a
                 work
            space).
                                                                                                         processor”
                                                parameters
                 to
                                                                                                   resource
                                                                                                         into
                                     process.
                        process
                                                     running,
                                                                dispatching.
                                                                             handles),
                                                                                                         two
                                                (priority,
                                                                             and
                        share
                                                     etc.),
                                                                                                   ownership.
                                                etc),
                                                                                                         parts:
                 create/delete
                        address
                 than
                        space
                        &
                 processes
                        object
                 (mainly
                 due
                        handles.
                 to
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