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From: Duncan Sands <baldrick@free.fr>
To: comp.lang.ada@ada-france.org
Subject: Re: real_time.clock is not monotonic
Date: Thu, 22 Feb 2007 11:53:58 +0100
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Date: 2007-02-22T12:15:02+01:00

On Thursday 22 February 2007 11:34:37 Simon Wright wrote:
> Duncan Sands <baldrick@free.fr> writes:
> 
> >>         ("rdtsc" & ASCII.LF & ASCII.HT &
> >
> > I think the user needs to have appropriate permissions
> > for this to work.  In any case, the linux kernel time
> > support is getting a massive rework as we speak, so
> > hopefully everything will be perfect soon :)
> 
> Works for ordinary users on Windows (certainly up to 2K) and on all
> the Linuxes I've tried it on (up to Ubunto DD).

I think you just got lucky with linux.

> Much better of course to use OS facilities.
> 
> But my primary interest was for a high resolution clock (1e-5 seconds
> or better), the monotonicity was incidental.

Yes of course.  This is one of the things that is being sorted out in
linux now.

Ciao,

Duncan.