Why is CLOCKS_PER_SEC not the actual number of clocks per second?
CLOCKS_PER_SECOND is not supposed to show the number of clock in your process. It is a resolution number that you may use to convert the number of clocks to amount of time.
CLOCKS_PER_SEC in C language found the time.h library
Jul 24, 2018 · Does CLOCKS_PER_SEC varies from system to system or is it constant for an operating system or is it dependent on the processor of that particular system? CLOCKS_PER_SEC is …
c - clock () precision in time.h - Stack Overflow
Dec 22, 2011 · CLOCKS_PER_SEC is required to be 1,000,000 (and is so defined on RedHat 5.3 in /usr/include/time.h). You mention incremented by 10,000; that would have to be done 100 times a …
benchmarking - Execution time of C program - Stack Overflow
I need to be able to record the execution time (which could be anywhere from 1 second to several minutes). I have searched for answers, but they all seem to suggest using the clock() function, which …
Understanding about clock () and CLOCKS_PER_SEC in C++
Mar 5, 2014 · . . clock_t end = clock(); . . double duration = end - start; . . cout << CLOCKS_PER_SEC << endl; start is equal to 184000 end is equal to 188000 CLOCKS_PER_SEC is equal to 1000000 …
c++ - std::clock () and CLOCKS_PER_SEC - Stack Overflow
To convert result value to seconds divide it by CLOCKS_PER_SEC. So it will not return a second until the program uses an actual second of the cpu time. If you want to deal with actual time I suggest you …
c++ - Calculate Clocks Per Sec - Stack Overflow
Aug 13, 2016 · Why is clocks_per_sec macro = to 1000? and how do I calculate the amount of cycles per second my CPU does? I'm trying to write a program that does something every tick and want as …
Behaviour of CLOCKS_PER_SEC in different Operating Systems
Sep 3, 2012 · I was running a cpp code , but one thing i noticed that on windows 7, CLOCKS_PER_SEC in C++ code gives 1000 while on linux fedora 16 it gives 1000000. Can anyone justify this behaviour?
How do I count how many milliseconds it takes my program to run?
There's a CLOCKS_PER_SEC macro to help you convert ticks to milliseconds. There are O/S-specific APIs to get high-resolution timers. You can run your program more than once (e.g. a 1000 times) and …
c++ - Type of CLOCKS_PER_SEC - Stack Overflow
May 25, 2011 · CLOCKS_PER_SEC is a macro, that usually expands to a literal. The glibc manual says: In the GNU system, clock_t is equivalent to long int and CLOCKS_PER_SEC is an integer value. But …