Re: [Xen-devel] [PATCH] Fix clock_gettime to increment monotonically onPV-domain/x86

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 15/6/07 15:00, "John Levon" <levon@xxxxxxxxxxxxxxxxx> wrote:

>> IIUC this would make it less likely to see time going backwards, but when
>> you do it'll be by a lot more (the size of your precision granularity), and
>> it'll occur when your time values are unlucky enough to be just on the wrong
>> sides of a boundary between two time intervals which map to different
>> lower-precision time values.
> 
> The idea is that it would never be wrong enough to hit that case (taken
> to extremes we wouldn't expect to see it go backwards by a minute!)

Then I don't understand what you're proposing (I thought you were just
shaving off least-significant bits, but it must be smarter than that).

 -- Keir



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