QueryPerformanceTimer & Fixed Timestep?

Started by
9 comments, last by Jan Wassenberg 16 years, 10 months ago
> Indeed, I was thinking of the ACPI PM timer, not the APIC timer.
:)

> I'm wondering if Windows XP or Vista also supports it.
Yep, they do - you can specify /usepmtimer in boot.ini to force QPC to use it.

Quote:And that's the problem, it can be difficult for an application to determine if that is the case.

Never fear, that is taken care of by the code linked to above :) It even has a driver that reads the PM timer directly without requiring users to fiddle with boot.ini.
E8 17 00 42 CE DC D2 DC E4 EA C4 40 CA DA C2 D8 CC 40 CA D0 E8 40E0 CA CA 96 5B B0 16 50 D7 D4 02 B2 02 86 E2 CD 21 58 48 79 F2 C3

This topic is closed to new replies.

Advertisement