bk@cs.brown.edu (Brian Knep) (02/08/91)
Does anyone know of papers/articles/books about real-time operating systems?
I know that someone is working on a real-time MACH, but references seem
scant. Thanks.
--- Brian Knep uunet!brunix!bk
Brown University bk@cs.brown.edu
bk@browncs.bitnetfkittred@bbn.com (Fletcher Kittredge) (02/11/91)
In article <BK.91Feb7165840@benefit.cs.brown.edu> bk@cs.brown.edu (Brian Knep) writes: > >Does anyone know of papers/articles/books about real-time operating systems? >I know that someone is working on a real-time MACH, but references seem >scant. Thanks. > Depends on the circles in which you travel; I seem to keep tripping over them every day. You should start with the below, and go on the references cited in it: Real-Time Mach: Towards a Predictable Real-Time System Hideyuki Tokuda, Tatsuo Nakajima and Prithvi Rao Proceedings of the Usenix Mach Conference, October 1990 > > --- Brian Knep uunet!brunix!bk > Brown University bk@cs.brown.edu > bk@browncs.bitnet Fletcher Kittredge Platforms and Tools Group, BBN Software Products 10 Fawcett Street, Cambridge, MA. 02138 617-873-3465 / fkittred@bbn.com / fkittred@das.harvard.edu
prithvi@GAUGUIN.ART.CS.CMU.EDU (Prithvi Rao) (02/12/91)
The work on real-time mach although still in it's infancy has some interesting results. We have defined a new real-time thread interface and have incorporated the rate-monotonic scheduling policy. Essentially this comes down to having what we call an integrated time-driven scheduling scheme. We have been working on porting the pure-kernel(real-time version) to various platforms including the sony/NEWS and rs6000, r3000 etc. We are working exclusively with the pure-kernel and adding the sporadic and deferrable server scheduling policies. We also have implemented the priority inheritance capability for executing critical sections. So we can create periodic and aperiodic threads and have some interesting applications to demonstrate the advantage of our real-time scheduling policies in real-time apllications. We emphasise predictability and so have a toolset that allows a user to monitor kernel scheduling activities. So at least this gives you a flavour of what we are up to in the real-time mach effort. There's lots more so if you're interested send me some mail. _prithvi