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From: torrie@cs.stanford.edu (Evan J Torrie)
Newsgroups: comp.sys.amiga.advocacy
Subject: Re: How task priorities get changed from the Amiga CLI Re: How do we change the scheduler? (Was Re: Multitasking at home...)
Message-ID: <1991Jan23.230448.3211@Neon.Stanford.EDU>
Date: 23 Jan 91 23:04:48 GMT
References: <10620.tnews@templar.actrix.gen.nz> <1991Jan22.215801.4557@Neon.Stanford.EDU> <1991Jan23.144310.18737@zorch.SF-Bay.ORG>
Sender: torrie@Neon.Stanford.EDU (Evan James Torrie)
Organization: Computer Science Department, Stanford University
Lines: 36

xanthian@zorch.SF-Bay.ORG (Kent Paul Dolan) writes:

> torrie@cs.stanford.edu (Evan J Torrie) writes:
>>  "Some" can be configured?  Is there an all-purpose "nice" command?

>Not by that name, but, for example, I want my terminal emulator, which
>also handles downloads and uploads for me, to run at a higher priority
>(most of the time it is just waiting for keystrokes from me and using no
>cpu time, so a higher priority is OK, and I do need the higher priority to
>keep the download from missing characters when I _am_ running a download).

  What "real-time" OSes are there available for micros?  Modem
downloading/uploading is one example of a task for which you want to
say "Guarantee this task a timeslice every xxx milliseconds no matter
what the rest of the system is doing".  
  Apple has ROSE, a realtime OS which runs on their communications
boards (e.g. Ethernet/Token Ring) equipped with an on-card 68000 and a
MB or so of RAM, but I don't know how well that is taken advantage
of... 


>You can also change a task's priority while it is running, by using the "ps"
>command to learn its process ID, then using another form of the priority
>changing routine that uses that process ID:

>	changetaskpri 3 process 2

>and only affects the one process instead of all of them.

  Is there a Workbench interface to do this, instead of having to do
it from the CLI?

-- 
------------------------------------------------------------------------------
Evan Torrie.  Stanford University, Class of 199?       torrie@cs.stanford.edu   
"And remember, whatever you do, DON'T MENTION THE WAR!"