Re: Slow kernel clock
On Thursday 13 June 2002 01:27, Seneca wrote:
> A while ago I noticed that my system time was about half an hour off
> of what it should be, and set it to the more accurate time of the
> hardware clock. Over the course of the past 24 hours, the hardware
> clock has gone ~1 minute slow, but the system clock is now 20 minutes
> slow.
>
> I know that the lapse occurs during periods of heavy swapping (>20M
> swap used (I only have 16M physical memory)) which is a normal
> occurance (my system is a cron-operated alarmclock), and happens most
> rapidly when using apt or dpkg (which causes 50M of swap to be used).
>
> I was wondering about how to get the system clock to match the
> hardware clock when the system's time is >5 min slow. I can't use the
> NTP clients because of a rather ignorant windoze proxy (determined by
> trial and error), and I would prefer not to have to manually set the
> time every day or so (hwclock --hctosys).
>
> When the time according to my watch was 18:52:14, I got the following
> output:
>
> $ sudo hwclock --show; date
> Wed Jun 12 18:51:58 -0.189813 seconds
> Wed Jun 12 18:32:44 EDT
Apparently, the system clock is fine (16 seconds off should be OK). You
could try removing /etc/adjtime and then resetting the time. hwclock
keeps information there bout how much slower or faster than realtime
the system clock is and the time is corrected by that data. If you
remove the file, reset the time and then adjust the time again after a
rather long period of uptime, you should be fine.
Alternatively, you could try time servers bu I'm no expert there.
(Probably you'll eventually get that advise anyway)
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