Path: utzoo!utgpu!watserv1!watmath!att!mcdchg!ddsw1!corpane!disk!stevenw
From: stevenw@disk.UUCP (stevenw)
Newsgroups: comp.os.os9
Subject: Re: Time Problem on OS-9 Systems
Message-ID: <3334@disk.UUCP>
Date: 7 Jul 90 01:22:39 GMT
References: <2031@cernvax.UUCP>
Organization: Digital Information Systems of Ky (DISK), Louisville, Ky
Lines: 39





R U N  ! ! ! !

No, seriously :o), you have an interesting problem here.  Here are
some questions:

1. How many ticks per second is the system running with ?  How many
   ticks per slice ?

2. How exactly is the clock handled ?  Which device provides tick
   interupts ?  What level is it interrupting at ?  What levels are
   the other devices ?

3. Are you certain that the time is not being read from the RTC ?
   If you read time from a RTC, it can get out of sync with the 
   tick count and cause problems when you read the time.

You are losing something like 1/140th of the time, given the figures
you posted.  Does this figure have any particular signifcance ?

Have you ruled out memory allocation problems (processes eating it,
processes corrupting it etc.) ?

Are you using events or other facilities that make use of ever-
-incrementing system variables ?

Does the problem go away if you set the time ?


This is a puzzling problem.  I hope there are somemore ideas out there !

-- 
: Phone: (502) 425 9560   <<  Steven Weller  >>   Fax: (502) 426 3944 :
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:        stevenw@disk.UUCP or uunet!ukma!corpane!disk!stevenw         :