Re: [ANNOUNCE] ktimers subsystem

Christoph Lameter
2005-09-19T22:04:38Z

On Mon, 19 Sep 2005 tglx@linutronix.de wrote:

> sources. Another astonishing implementation detail of the current time
> keeping is the fact that we get the monotonic clock (defined by POSIX as
> a continous clock source which can not be set) by subtracting a variable
> offset from the real time clock, which can be set by the user and
> corrected by NTP or other mechanisms.

The benefit or drawback of that implementation depends which time is more
important: realtime or monotonic time. I think the most used time value is
realtime and not monotonic time. Having the real time value in xtime
saves one addition when retrieving realtime.