Joel Sherrill joel.sherrill at
Thu Jun 2 06:11:12 UTC 2011

Till Straumann <strauman at> wrote:

>Currently, adjtime() basically steps the time (albeit not
>backwards if IRC) and this only if the requested difference
>is bigger than a full clock tick.
>IMO it would make sense to improve this implementation by
>- gradually adjusting the clock, i.e., absorbing the requested
>   delta over multiple clock ticks.
>- allow small adjustments (especially on architectures
>   with a high-resolution clock)
>I know that adjtime() is not posix but AFAIK there is nothing else.
>Ultimate goal would be letting an NTP client use adjtime().
>Maybe even a better idea would be incorporating the Mills
>algorithm into the system clock and add adjtimex() for tuning
>it with an NTP client.
>- Till
>rtems-users mailing list
>rtems-users at

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