[fpc-pascal] Very vague gettickcount64 description?

[Graeme Geldenhuys]

On 08/09/2019 1:07 am, Alexander Grotewohl wrote:
> every call to gettickcount is something 
> like 10-15ms or so off. 

Martin's suggested documentation "The minimum resolution may vary...."
makes that very clear.

Also anybody that works with timing API's should know that each platform
has different minimum resolutions. eg: I quickly found out that FreeBSD
can give better minimum resolutions than Linux, and in turn Linux can
give better minimum resolutions than Windows. Thats if you don't use
specialized hardware and only rely and the platform's OS timing
implementations.

Simply mentioning "The minimum resolution may vary" should be good
enough. And if you want to go the extra mile, mention that simply
calling the API twice after each other (no other lines of code
in-between) and then viewing the difference should give you a good
indication of the platform's minimum resolution after a few samples and
avg result.


Regards,
  Graeme

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