AutoHotkey Community

Performance Counter Frequency
QPF call returned 1
2799930000 hz
0.0000000003571518 sec

System Time Clock Frequency
STA call retrned 1
156250 hundred-nanoseconds
64.0000000000000000 hz
0.0156250000000000 sec
TA = 156250
TAD = 1

AutoHotkey 1.0.48.03 WIN_XP

Windows XP SP3
Pentium D CPU 2.80GHz
0,99 GB RAM
Custom

_________________
"Read the manual. Read it again. Search the forum.
Try something before asking. Show what you've tried."

Antonio França
My stuff: Google Profile

Performance Counter Frequency
QPF call returned 1
2666730000 hz
0.0000000003749911 sec

System Time Clock Frequency
STA call retrned 1
156250 hundred-nanoseconds
64.0000000000000000 hz
0.0156250000000000 sec
TA = 155079
TAD = 0

AutoHotkey 1.0.48.03 WIN_XP

[
Its my work system. Cutom assembled
Intel Pentium 4 - 2.66 GHZ
0.99 GB RAM
Windows XP, version 2002,SP2
]

Performance Counter Frequency
QPF call returned 1
14318180 hz
0.0000000698412787 sec

System Time Clock Frequency
STA call retrned 1
156001 hundred-nanoseconds
64.1021531913256980 hz
0.0156001000000000 sec
TA = 156045
TAD = 0

AutoHotkey 1.0.47.06 WIN_VISTA

[Dell Precision M6300
Core2Duo T9300 @ 2.5GHz
4GB ram]

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(Common Answers) - New Tutorials Forum - Humongous FAQ

also, you should see if the results change with SetFormat FloatFast and AHK 1.0.48.x

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(Common Answers) - New Tutorials Forum - Humongous FAQ

The bold numbers are the actual integer (non-float) values returned from the API. The floating point values are just easier to read at a glance, but precision is unimportant.

I wish I had asked for people's mainboard (motherboard) models, so I could figure out what chipsets are responsible for higher Performance Counter frequencies.

Also, if anyone here is good at low level assembly code that could write a direct hardware interface to the performance counter, to try taking quick polling samples to figure out just how close 2 values can be retrieved.

This is all great info, however. I have a much better idea of how i'm going to approach this code.

Performance Counter Frequency
QPF call returned 1
25000000 hz
0.0000000400000000 sec

System Time Clock Frequency
STA call retrned 1
156001 hundred-nanoseconds
64.1021531913256980 hz
0.0156001000000000 sec
TA = 156001
TAD = 1

AutoHotkey 1.0.48.03 WIN_VISTA

[ Dell XPS 720 H2C Vista 32bit
Quad Core Extreme Processor at 4.0ghz]