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Groups > comp.arch.embedded > #29231
| From | Jim Jackson <jj@franjam.org.uk> |
|---|---|
| Newsgroups | comp.arch.embedded |
| Subject | Re: timestamp in ms and 64-bit counter |
| Date | 2020-02-08 12:09 +0000 |
| Organization | /etc/news/organization |
| Message-ID | <slrnr3t97e.2ck.jj@iridium.wf32df> (permalink) |
| References | <r1h1lj$i5f$1@dont-email.me> <e904a242-d591-4759-bc92-f738f9b94123@googlegroups.com> <r1hofl$ca7$1@newsreader4.netcologne.de> <slrnr3rnmf.e50.jj@iridium.wf32df> <ekls3f57oslfogbdd6u7q7l7cvl2eoefpt@4ax.com> |
On 2020-02-08, upsidedown@downunder.com <upsidedown@downunder.com> wrote: > On Fri, 7 Feb 2020 22:03:59 -0000 (UTC), Jim Jackson ><jj@franjam.org.uk> wrote: > >>>> A 32 bit counter incremented at 1 kHz will roll over every 3 years or so. >>> >>> 2 ^ 32 / (24 * 60 * 60 * 1000) = 49.71026962... (days) >> >>Ah yes. Early versions of Windows NT. Crashed if they had an uptime >>of 49 and a bit days - I wonder why :-) >> >>Mind you getting early NT to stay up that long without crashing or needing >>a reboot was bloody difficult. > > Which NT version was that ? Sorry, I wasn't part of the MS team, but it was a very early version. And it was a long time ago. I remember someone did the calculation above - and it was reported to MS support. I think there was no feedback other than, a set of patches later on. The Windows NT file servers also went on a temporary go slow periodically, which had our MS team baffled for a while. Eventually someone twigged that it was when you went to the graphical console and interrupted the screensaver that the sluggish performance went away - yes the screensaver was hogging the CPU and hitting fileserve performance! Needless to say the Unix team sniggered at that. > > My NT 3.51 very seldom needed reboots. In many years I booted it only > three time after, Eastern, Christmas and summer vacations, since I did > not want to leave the computer unattended for a week or more at a > time. >
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timestamp in ms and 64-bit counter pozz <pozzugno@gmail.com> - 2020-02-06 13:43 +0100
Re: timestamp in ms and 64-bit counter David Brown <david.brown@hesbynett.no> - 2020-02-06 15:10 +0100
Re: timestamp in ms and 64-bit counter pozz <pozzugno@gmail.com> - 2020-02-06 16:10 +0100
Re: timestamp in ms and 64-bit counter Rick C <gnuarm.deletethisbit@gmail.com> - 2020-02-06 10:02 -0800
Re: timestamp in ms and 64-bit counter Bernd Linsel <bl1@gmx.com> - 2020-02-06 20:12 +0100
Re: timestamp in ms and 64-bit counter Rick C <gnuarm.deletethisbit@gmail.com> - 2020-02-06 12:10 -0800
Re: timestamp in ms and 64-bit counter Jim Jackson <jj@franjam.org.uk> - 2020-02-07 22:03 +0000
Re: timestamp in ms and 64-bit counter upsidedown@downunder.com - 2020-02-08 08:39 +0200
Re: timestamp in ms and 64-bit counter Jim Jackson <jj@franjam.org.uk> - 2020-02-08 12:09 +0000
Re: timestamp in ms and 64-bit counter David Brown <david.brown@hesbynett.no> - 2020-02-08 16:24 +0100
Re: timestamp in ms and 64-bit counter upsidedown@downunder.com - 2020-02-08 18:37 +0200
Re: timestamp in ms and 64-bit counter Robert Wessel <robertwessel2@yahoo.com> - 2020-02-08 14:30 -0600
Re: timestamp in ms and 64-bit counter upsidedown@downunder.com - 2020-02-09 07:25 +0200
Re: timestamp in ms and 64-bit counter George Neuner <gneuner2@comcast.net> - 2020-02-09 01:49 -0500
Re: timestamp in ms and 64-bit counter Rick C <gnuarm.deletethisbit@gmail.com> - 2020-02-08 09:41 -0800
Re: timestamp in ms and 64-bit counter David Brown <david.brown@hesbynett.no> - 2020-02-08 19:57 +0100
Re: timestamp in ms and 64-bit counter upsidedown@downunder.com - 2020-02-09 08:35 +0200
Re: timestamp in ms and 64-bit counter David Brown <david.brown@hesbynett.no> - 2020-02-09 12:17 +0100
Re: timestamp in ms and 64-bit counter George Neuner <gneuner2@comcast.net> - 2020-02-13 10:54 -0500
Re: timestamp in ms and 64-bit counter Robert Wessel <robertwessel2@yahoo.com> - 2020-02-06 13:20 -0600
Re: timestamp in ms and 64-bit counter David Brown <david.brown@hesbynett.no> - 2020-02-06 22:35 +0100
Re: timestamp in ms and 64-bit counter Rick C <gnuarm.deletethisbit@gmail.com> - 2020-02-06 16:29 -0800
Re: timestamp in ms and 64-bit counter David Brown <david.brown@hesbynett.no> - 2020-02-07 10:43 +0100
Re: timestamp in ms and 64-bit counter Rick C <gnuarm.deletethisbit@gmail.com> - 2020-02-07 09:51 -0800
Re: timestamp in ms and 64-bit counter pozz <pozzugno@gmail.com> - 2020-02-09 23:34 +0100
Re: timestamp in ms and 64-bit counter upsidedown@downunder.com - 2020-02-10 22:35 +0200
Re: timestamp in ms and 64-bit counter Ed Prochak <edprochak@gmail.com> - 2020-02-08 11:43 -0800
Re: timestamp in ms and 64-bit counter pozz <pozzugno@gmail.com> - 2020-02-09 23:43 +0100
Re: timestamp in ms and 64-bit counter pozz <pozzugno@gmail.com> - 2020-02-09 23:27 +0100
Re: timestamp in ms and 64-bit counter Rick C <gnuarm.deletethisbit@gmail.com> - 2020-02-09 20:23 -0800
Re: timestamp in ms and 64-bit counter Joe Chisolm <jchisolm6@earthlink.net> - 2020-02-06 15:34 -0600
Re: timestamp in ms and 64-bit counter pozz <pozzugno@gmail.com> - 2020-02-06 23:16 +0100
Re: timestamp in ms and 64-bit counter Clifford Heath <no.spam@please.net> - 2020-02-07 12:37 +1100
Re: timestamp in ms and 64-bit counter pozz <pozzugno@gmail.com> - 2020-02-07 09:09 +0100
Re: timestamp in ms and 64-bit counter Richard Damon <Richard@Damon-Family.org> - 2020-02-06 23:57 -0500
Re: timestamp in ms and 64-bit counter pozz <pozzugno@gmail.com> - 2020-02-07 09:27 +0100
Re: timestamp in ms and 64-bit counter David Brown <david.brown@hesbynett.no> - 2020-02-07 10:46 +0100
Re: timestamp in ms and 64-bit counter pozz <pozzugno@gmail.com> - 2020-02-07 14:29 +0100
Re: timestamp in ms and 64-bit counter Bernd Linsel <bl1@gmx.com> - 2020-02-07 16:49 +0100
Re: timestamp in ms and 64-bit counter David Brown <david.brown@hesbynett.no> - 2020-02-08 16:27 +0100
Re: timestamp in ms and 64-bit counter pozz <pozzugno@gmail.com> - 2020-02-08 17:00 +0100
Re: timestamp in ms and 64-bit counter Les Cargill <lcargill99@comcast.com> - 2020-02-08 16:53 -0600
Re: timestamp in ms and 64-bit counter kegs@provalid.com (Kent Dickey) - 2020-02-08 11:03 -0600
Re: timestamp in ms and 64-bit counter Richard Damon <Richard@Damon-Family.org> - 2020-02-08 12:34 -0500
Re: timestamp in ms and 64-bit counter kegs@provalid.com (Kent Dickey) - 2020-02-08 13:33 -0600
Re: timestamp in ms and 64-bit counter Rick C <gnuarm.deletethisbit@gmail.com> - 2020-02-08 12:12 -0800
Re: timestamp in ms and 64-bit counter Richard Damon <Richard@Damon-Family.org> - 2020-02-09 15:55 -0500
Re: timestamp in ms and 64-bit counter pozz <pozzugno@gmail.com> - 2020-02-10 00:58 +0100
Re: timestamp in ms and 64-bit counter Richard Damon <Richard@Damon-Family.org> - 2020-02-09 19:24 -0500
Re: timestamp in ms and 64-bit counter Robert Wessel <robertwessel2@yahoo.com> - 2020-02-08 14:46 -0600
Re: timestamp in ms and 64-bit counter Dimiter_Popoff <dp@tgi-sci.com> - 2020-02-08 23:18 +0200
Re: timestamp in ms and 64-bit counter Robert Wessel <robertwessel2@yahoo.com> - 2020-02-08 23:10 -0600
Re: timestamp in ms and 64-bit counter pozz <pozzugno@gmail.com> - 2020-02-10 00:55 +0100
Re: timestamp in ms and 64-bit counter Richard Damon <Richard@Damon-Family.org> - 2020-02-09 19:31 -0500
Re: timestamp in ms and 64-bit counter Robert Wessel <robertwessel2@yahoo.com> - 2020-02-10 18:40 -0600
Re: timestamp in ms and 64-bit counter Dimiter_Popoff <dp@tgi-sci.com> - 2020-02-11 13:02 +0200
Re: timestamp in ms and 64-bit counter Rick C <gnuarm.deletethisbit@gmail.com> - 2020-02-12 07:26 -0800
Re: timestamp in ms and 64-bit counter David Brown <david.brown@hesbynett.no> - 2020-02-12 18:49 +0100
Re: timestamp in ms and 64-bit counter Rick C <gnuarm.deletethisbit@gmail.com> - 2020-02-12 13:14 -0800
Re: timestamp in ms and 64-bit counter Robert Wessel <robertwessel2@yahoo.com> - 2020-02-12 15:44 -0600
Re: timestamp in ms and 64-bit counter Rick C <gnuarm.deletethisbit@gmail.com> - 2020-02-12 16:44 -0800
Re: timestamp in ms and 64-bit counter Robert Wessel <robertwessel2@yahoo.com> - 2020-02-12 18:58 -0600
Re: timestamp in ms and 64-bit counter David Brown <david.brown@hesbynett.no> - 2020-02-13 09:57 +0100
Re: timestamp in ms and 64-bit counter Bernd Linsel <bl1@gmx.com> - 2020-02-13 19:40 +0100
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