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Design and implement of high-resolution timer in Windows2000

BI Ye,SHI Zhong-ke(College of Automation,Northwestern Poly-technical University,Shaanxi Xi'an 710072,China)  
To satisfy the requirement of precise timing,several methods and its performance about timers in Windows2000 operation system are discussed.Then respectively using high-resolution performance counter and CPU time stamp counter develop two microsecond level precision timer,each depends on multithreading and priority based schedule mechanism of Windows.The results of experiments show that the precision timer has high robustness and accuracy.
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