Time Slices

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#5570

From: Michael Griffith
Date: Tue, 02 Oct 1990 15:28

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I noticed that the system programmer's guide just says that CIA-A's B timer
is used for various OS tasks and I was wondering:

   a. Is it used for the task-switching process? If not, what is it used for?

   b. Is the TOD timer used for task-switching? If not, is there a specific
      reason why this timer can't be used? I can't remember if you can get
      it to generate an interrupt or not. I think you can with an alarm.

   c. How does the CPU determine the time allotted to a task, specifically?
      Does it vary depending on the task load and the priority of the task,
      or is it fixed according to the priority?


| Michael Griffith                     | If I had an opinion it certainly   |
| griffith@eecs.ee.pdx.edu             | wouldn't be the same one as        |
| ...!tektronix!psueea!eecs!griffith   | Portland State University anyways. |

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!decwrl!ogicse!pdxgate!eecs!griffith
From: griffith@eecs.cs.pdx.edu (Michael Griffith)
Newsgroups: comp.sys.amiga.tech
Subject: Time Slices
Summary: In which I ask a Q about how much time a process gets in a slice.
Keywords: task switching time sharing time slice
Message-ID: <204@pdxgate.UUCP>
Date: 2 Oct 90 15:28:42 GMT
Sender: news@pdxgate.UUCP
Distribution: comp.sys.amiga.tech
Lines: 17