System clock running slow using Mint 10 - Fixed
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System clock running slow using Mint 10 - Fixed
06-10-2011 12:32 PM
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Re: System clock running slow using Mint 10
06-10-2011 4:11 PM
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"In The Beginning Was The Word, And The Word Was Aardvark."
Re: System clock running slow using Mint 10
06-10-2011 4:32 PM
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Re: System clock running slow using Mint 10
06-10-2011 4:43 PM
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Re: System clock running slow using Mint 10
06-10-2011 5:02 PM
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From Synaptic:-
Quote It consists of a pair of programs :
`chronyd'. This is a daemon which runs in background on the system. It
obtains measurements (e.g. via the network) of the system's offset
relative to other systems, and adjusts the system time accordingly. For
isolated systems, the user can periodically enter the correct time by hand
(using `chronyc'). In either case, `chronyd' determines the rate at which
the computer gains or loses time, and compensates for this. Chronyd
implements the NTP protocol and can act as either a client or a server.
`chronyc'. This is a command-line driven control and monitoring program.
An administrator can use this to fine-tune various parameters within the
daemon, add or delete servers etc whilst the daemon is running.
Re: System clock running slow using Mint 10
06-10-2011 5:35 PM
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Re: System clock running slow using Mint 10
06-10-2011 5:47 PM
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see
man ntpd
"In The Beginning Was The Word, And The Word Was Aardvark."
Re: System clock running slow using Mint 10
06-10-2011 5:55 PM
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sudo chrond& in a terminal.
Then see if your clock still drifts.
If all that fails try the Mint forums
Re: System clock running slow using Mint 10
06-10-2011 6:40 PM
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A more old fashioned way to start the service would be "sudo /etc/init.d/chrony start".
Re: System clock running slow using Mint 10
07-10-2011 12:27 PM
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Re: System clock running slow using Mint 10
07-10-2011 2:57 PM
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I find it weird that it is only Linux that has this issue on your h/w.
As I said earlier probably better posting in the Mint Forum for a definite answer.
Re: System clock running slow using Mint 10
07-10-2011 4:51 PM
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Quote I had the exact same problem. A Fujitsu Siemens Amilo Li 1705 that simply could not keep the time synced! It lagged about 1 second/minute… I set up a crontab that ran ntpdate every other hour or so. (NO! To any of you naysayers, the ntp daemon will not do it’s job under those circumstances…)
After having the missus spilling coffee and milk on the keyboard of the laptop, rendering the keyboard useless, I instead started using it as a server. Then, of course, syncing every 2 hours simply would not cut it as the lag buildup could amount to 2 minutes.
The solution was to use another server, well-behaved and well-synced (a trusty NSLU2 running Debian), as a local ntp server running ntpd. Then the misbehaving former-laptop-now-server could sync to that server instead and do it as often as needed without burdening the already burdened ntp servers around the globe. To have it never go beyond 5 seconds of lag I need to sync it with ntpdate as a cronjob every 5 minutes…
Re: System clock running slow using Mint 10
07-10-2011 5:21 PM
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Re: System clock running slow using Mint 10
07-10-2011 5:25 PM
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Quote from: custos I think I have to get back to my original problem in that with my hardware I need to use an alternative clocksource. The hardware clock normally keeps good time, it is only when running Linux I have a problem. What puzzles me is why I can't use the same fix as I did before - why is tsc no longer available as it was with the older version (9 I think) of Xububtu?
What makes you think the tsc clocksource is not available? The hardware clock may still keep good time in Linux, but Linux doesn't use the hardware clock except for reading the date and time at bootup. After that, there should be much more accurate hardware, usually the cpu itself, available to keep time to microsecond accuracy (well, to quite a lot of microseconds anyway).
Here's what I get related to tsc in dmesg:
[ 0.000000] Fast TSC calibration using PIT
[ 3.250117] Marking TSC unstable due to TSC halts in idle
Some of the vaguely recent possibly related changes in the kernel include CONFIG_HZ=1000 - increasing the frequency of the system timer to improve system responsiveness, and CONFIG_NO_HZ - which allows a variable frequency system timer, for power savings. You could also try the nohz=off kernel parameter.
Re: System clock running slow using Mint 10
07-10-2011 7:08 PM
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Quote jeremy@HECTOR:~$ dmesg | grep tsc
[ 90.807552] Clocksource tsc unstable (delta = -206435260 ns)
????
"In The Beginning Was The Word, And The Word Was Aardvark."
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