[Olsr-users] 0.5.6 Routes disappear after 4 mins of uptime, then all OK - suspect clock sync

[Henning Rogge]

Am Donnerstag 04 September 2008 10:54:23 schrieb Hannes Gredler:
> millisecond resolution of a 2^31 wide timer gets you down to an overflow
> every 24.85 days.
Okay... I forgot to divide by 24 (after dividing by 3600)... ;)

> | > i just wonder on a sufficient small clocktick resolution
> | > one could break this form of overflow detection.
> |
> | With normalization that should be no problem.
>
> what we could do is normalizing to each scheduler interval of 50ms.
>
> 2^31/20 = which would give us an overflow each 3.4 years.

I don't like this idea... a smooth value would be better.

Do we really need timers with more than 24 days ??

Henning


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