Path: utzoo!attcan!uunet!munnari!uniwa!wacsvax!peter
From: peter@wacsvax.OZ (Peter Dodd)
Newsgroups: comp.sys.transputer
Subject: Re: low priority processes
Summary: What does it do ?
Keywords: transputers
Message-ID: <1062@wacsvax.OZ>
Date: 20 May 89 04:49:35 GMT
References: <789@uowcsa.cs.uow.oz>
Organization: Comp Sci, Uni. Western Australia.
Lines: 23



Ian,
  Given a low priority process executing alone :

> The question is...(if my assumptions are correct?!), what is the time
> interval between the process being de-activated and it becoming active 
> again. Not very much, I (again) assume. 

  Im not sure, but it will be one of two cases :

1) The processor deschedules the process then reschedules the process
   who's workspace is pointed to by the FPtr1 register, which will take 
   less than 1us. ( Normal context switch time )

2) The processor will recognise that the FPtr1 and current Workspace
   registers are identical, and continue execution without descheduling.
   Even less time than context switching. 

Peter.

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peter@wacsvax.oz