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GetTickCount on dual core machines



 
 
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Old January 10th 11, 12:32 PM posted to microsoft.public.windowsxp.hardware
Alain Dekker[_3_]
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Posts: 73
Default GetTickCount on dual core machines

I'm using the Win32 API call GetTickCount for various high speed uses in C++
and Delphi native code. We've noticed that on some systems, this is very
accurate (as you'd expect) but on other systems it can lose as much as 30-60
minutes a day. We're using a combination of machines, Pentium 4 2.8GHz and
Intel i3 dual core (2.40 GHz) but no clear indication which machines are
better and which are worse.

My question is:
* What causes a computer to lose time over a day?
* Will installing extra hardware (such as a PCI USB expansion card) affect
this?
* On a dual core processor, does each core have a separate TickCount or is
there one TickCount for the machine?

Thanks,
Alain


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