Re: uptime increases during suspend

["Peter T. Breuer" <ptb@inv.it.uc3m.es>]

"Also sprach Eric Piel:"
> monotonic clock. Linux has such thing since few releases. Using 
> CLOCK_MONOTONIC (cf "man 3 clock_gettime") may look much less hacky than 
> using the uptime ;-)

Actually, the man page does not say anything about the behavior across
suspends, and ...

      CLOCK_REALTIME
              System-wide  realtime clock.  Setting this clock requires appro-
              priate privileges.

       CLOCK_MONOTONIC
              Clock that cannot be set and  represents  monotonic  time  since
              some unspecified starting point.

I'd understand both those wordings the same way!  Well, I suppose
"cannot be set" means that at least humans can't willingly interfere with
it, but maybe something else can.

> Now... concerning the suspend effect on this clock, I don't know. It's 
> probably the same problem as uptime: no official semantic has ever been 
> stated yet... Does anyone know?

"Monotonic" means "always goes in the same direction", not "never
skips".

Peter
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