C library/kernel differences On some architectures, an implementation of clock_gettime() is provided in the vdso(7). Historical note for SMP systems Before Linux added kernel support for CLOCK_PROCESS_CPUTIME_ID and CLOCK_THREAD_CPUTIME_ID , glibc implemented these clocks on many platforms using timer registers from the CPUs (TSC on i386, AR
time(2) - Linux manual page C library/kernel differences On some architectures, an implementation of time() is provided in the vdso(7). SEE ALSO top date(1), gettimeofday(2), ctime(3), ftime(3), time(7), vdso(7) COLOPHON top This page is part of release 5.07 of the Linux man-pages project. Measure execution time with high precision in C/C++ Using chrono::high_resolution_clock in C++.. chrono : Chrono library is used to deal with date and time. This library was designed to deal with the fact that timers and clocks might be different on different systems and thus to improve over time in terms of precision.chrono is the name of a header, but also of a sub-namespace, All the elements in this header are not defined directly under the
一.gettimeofday()函数的使用方法： 1.简介： 在C语言中可以使用函数gettimeofday()函数来得到时间。它的精度可以达到微妙
gettimeofday.c - Apple Inc.
gettimeofday, settimeofday, or ftime Subroutine
C++ (Cpp) gettimeofday - 30 examples found. These are the top rated real world C++ (Cpp) examples of gettimeofday extracted from open source projects. You can … C Programming Tutorial 76, Time Functions - YouTube