C linux equivalent of windows QueryPerformanceCounter
Question
Is there an equivalent C function in linux for reading the CPU counter and its frequency?
I am looking for something similair to QueryPerformanceCounter function that reads the 64bit counter in modern CPU's
3 answers
solution1
14 2010-04-18 00:25:18
clock_gettime(2) ，参数为CLOCK_REALTIME_HR 。
solution2
2 2016-07-03 17:50:25
clock_gettime() 与 CLOCK_MONOTONIC_RAW
solution3
1 2010-04-17 07:11:41
The HAVEGE library uses the CPU counter. Check out its source code here . The relevant file is src/hardtick.h.
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