Boost logo

Boost :

From: Russell Hind (rhind_at_[hidden])
Date: 2003-03-27 10:26:14

Johan Nilsson wrote:
> Perhaps, but one should consider that GetSystemTime promises 1ms resolution
> and delivers 10-15ms (and, IIRC, that GetSystemTimeAsFileTime promises
> 250ns resolution).

The Platform SDK states that the tickcount (GetTickCount) is updated
every 10ms on NT3.51 and hight so I guess that GetSystemTime is updated
at this interval also.

FileTimes are measured in 100 nanosecond intervals since 1 January,
1601, but are you sure that GetSystemTimeAsFileTime will return a value
that is updated at 250ns intervals? I can't find anything in the SDK to
say what the update interval is for the SystemTime, I'm just guessing
that it is updated when the tick count is.



Boost list run by bdawes at, gregod at, cpdaniel at, john at