Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!gem.mps.ohio-state.edu!apple!claris!sts!sjsumcs!33014-18
From: 33014-18@sjsumcs.sjsu.edu (Eduardo Horvath)
Newsgroups: comp.sys.amiga
Subject: Re: CrossDOS and multitasking Works!/ClockDJ
Message-ID: <1989Oct16.150155.102@sjsumcs.sjsu.edu>
Date: 16 Oct 89 15:01:55 GMT
References: <210@grape3.UUCP>
Reply-To: 33014-18@sjsumcs.SJSU.EDU (Eduardo Horvath)
Organization: San Jose State University
Lines: 50

In article <210@grape3.UUCP> king@cell.mot.COM (Steven King) writes:
>Two questions this time around:
>
[ yum yum! ]
>
>2) This is about multitasking.  Recently I installed a public-domain (or 
>   shareware, don't remember which) program called ClockDJ.
...
>   Sometimes, when I pop back to the workbench while I'm online I give a
>   command (anything in an open CLI window, or using the ClockDJ menu, or
>   [I suspect, haven't tried it] opening a disk icon) and the entire process 
>   hangs.  Nothing else from the workbench will function,
...
>   If I do any disk-access from the telecom program,
>   whatever I tried to fire up on the workbench will come alive -- FOR AS LONG
>   AS THE DISK ACCESS IS GOING ON.  After disk activity ends the workbench
>   process hangs again. 

	It looks to me as if you have a process with a priority greater
than 1 (WorkBench Priority) that is running continuously (busy-wait).  Now
when the telecom program does disk access, it blocks (waits) until the 
disk DMA gets the necessary information for it, and WB is allowed to run.

	Solutions:

1)	Get another telecom program or something.

2) 	Get something that will allow you to change task priorities, and
	carefully tune everything that is not part of the operating system
	down to priority 0 every time you run this.

[ much deleted ]

>
>/-----------------------------------------------------------------------------\
>| Modern man is vulnerable to any competent      | Steve King  (312) 991-8056 |
>| engineer.                                      |   ...uunet!motcid!king     |
>|                                                |   ...ddsw1!palnet!stevek   |
>\-----------------------------------------------------------------------------/


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