[ntp:questions] Re: Windows timekeeping - sudden degradation - why?

Danny Mayer mayer at ntp.isc.org
Sat Dec 10 03:01:42 UTC 2005


Martin Burnicki wrote:
> David,
> 
> David J Taylor wrote:
> 
>>Just doing a little more work on this.  I wrote a program to display
>>(approximately) the resolution of the timer (from a timeGetTime) call, and
>>got the following results:
>>
>>- QuickTime Player running (not even playing a video), timer resolution
>>just under 1ms (about 960 us)
> 
> 
> Normally 1 ms is the highest resolution you can set the MM timer to.
>  
> 
You might want to try running clockres from sysinternals.com. It will
tell you what your clock resolution is. Try it in different states and
see if it shows different clock resolution.

Danny



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