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In kernel 2.0.36/40, the Freesco kernel, the frequency of the timer interrupt is equal to 100 on x86. So the timer pops every 1/100 of a second. The timer interrupt is at the heart of the system. Everything lives and dies based on it. Its period is basically the granularity of the system.
The system uptime is counted in an unsigned 32-bits holding 10 jiffies per second, 60 seconds in a minute, ...
At 497 days, 2 hours, 27 minutes and 53 seconds the uptime counter wraps to 0, but the system continue its operation flawlessly.
Some define uptime as a symbolism of an unpatched kernel, or a machine that doesn´t have cyclical failure testing. I´ve also heard that high uptime is seen as a synonym for stability, when actually the uncertainty of it going down is so big no one wants to touch it.
I think it doesn´t apply for the Freesco system. The Freesco router has been a loyal and reliable connection to Internet.
A little explanation: D=days, H=hours, M=minutes, S=seconds.
This is an experimental line, updated from my mobile.
20131011-11:16 d=17 h=12 m=27 s=17 (hnphne3)Here´s the last update from my crashed Freesco.
111027-04:19 D=789 H=11 M=37 S=29So it became over 2 years this time. When the disk went corrupt :-(
My former recorded max uptime was this:
4:36am up 427 days, 8:02, 1 user, load average: 2.46, 1.38, 1.18When the power company burned a transfomer and my router had to rest for some hours.
We will all go together when we go - Tom Lehrer