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- Newsgroups: comp.os.os2.misc,comp.os.os2.programmer
- Path: sparky!uunet!cs.utexas.edu!sun-barr!ames!tulane!darwin.sura.net!jvnc.net!nuscc!eletanjm
- From: eletanjm@nuscc.nus.sg (TAN JIN MENG)
- Subject: Re: Request for info about kernel pre-emption and priorities
- Message-ID: <1992Aug14.054245.25657@nuscc.nus.sg>
- Organization: National University of Singapore
- References: <1992Aug13.221616.7894@ttinews.tti.com>
- Date: Fri, 14 Aug 1992 05:42:45 GMT
- Lines: 18
-
- terence@tanru.tti.com ( Terry) writes:
- : I looked in my copy of "The Design of OS/2" for the answers to the
- : aforementioned questions and learned a number of things, including that
- : the kernel is indeed non-preemptible but can be interrupted. Also, that
- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- HUH? explicate please ...?
- Do you mean that the kernel can receive interruptsss but delays the task
- wakeup until the current kernel task finishes?
-
- : process can have their priority boosted under different conditions.
- : Another question we had concerning real-time issues was answered:
- : Time-critical tasks have a maximum reschedule time of 6 ms after they're
- : ready to run. This was also important to us.
-
- 6ms to reschedule a time critical task? Seems a little high to me - or
- is this timing related to the fact that the kernel is non preemptible?
-
- jin meng
-