Measure execution time in C (for Linux and Windows)

Links related to the topic of measuring execution time:

Source code can be found here:

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[mehregankbi]

now i don't know if it's the best way of doing this, but measuring the difference between a process' cpu time and wall time could be used to measure io boundedness of that process. (given that the CPU is not overloaded, so the amount of time the process spends in the ready queue is negligible compared to the amount of time that it stays in the waiting queue.

[NenieIri]

and what are you think about clock() function? In manual says "clock - determine processor time". Does it correct to use for measurement or not?

[markobrodanac]

Is this CPU time equal to sys or user time when measuring with time function in shell?

[michaelvanzyl]

Would the compiler not be clever enough to optimise out any operations done on x, if it’s never read from? (Or does that require an optimisation flag)

[msrinivas]

Where can I get this compiler sir ? How can I install it. Please reply back the link. Tq

[akhilpandey]

My question is different from this topic...
Can we find the maximum number of thread that we can create in a program?

[mritunjaykumar]

can you please create a video on EPOCH time, how to convert epoch time (in seconds) to actual time without using any inbuilt functions in c ?

[mbaceo]

||=== Build: Debug in timeckick (compiler: GNU GCC Compiler) ===|
function 'int main(int, char**)':|
aggregate 'main(int, char**)::timespec begin' has incomplete type and cannot be defined|
'TIME_UTC' was not declared in this scope|
'timespec_get' was not declared in this scope|
aggregate 'main(int, char**)::timespec end' has incomplete type and cannot be defined|
||=== Build failed: 4 error(s), 0 warning(s) (0 minute(s), 0 second(s)) ===|