2022/01/26 · While RDTSC is much faster than QueryPerformanceCounter, since the latter is an API call, it is an API that can be called several hundred times ...
RDTSC is a processor-intrinsic way of getting to a special register keeping track on how many clock cycles have passed since the machine has started.
Every x86 family proccessor has a Timestamp Counter (TSC), which increments with every clock cycle since it was reset. RDTSC is a processor intruction that ...
2023/06/20 · You can issue an RDTSC instruction from user mode on most x64 processors, on most consumer operating systems, and get back results you can use.
2014/12/07 · We strongly discourage using the RDTSC or RDTSCP processor instruction to directly query the TSC because you won't get reliable results on some ...
2023/04/18 · The value of this counter can be read through the RDTSC or RDTSCP machine instructions, providing very low access time and computational ...
2010/11/08 · This article suggests a more accurate, reliable solution using the Windows APIs QueryPerformanceCounter and QueryPerformanceFrequency.
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What is QueryPerformanceCounter?
What is the difference between Rdpmc and RDTSC?
What does RDTSC measure?
What is the problem with RDTSC?
2023/07/25 · While the RDTSC profiler was adding 300-400ms, the QueryPerformanceCounter profiler was adding 1400ms! We are only doing ballpark estimates here ...
2012/07/06 · We've updated the documentation for QueryPerformanceCounter, and the comparison between RDTSC and QueryPerformanceCounter accuracy above ...
2006/01/18 · The 2 clocks are different. RDTSC is the most precise. If you need to measure short times (<<1ms) then always use RDTSC. The main problem with ...