Time Execution

[Toumi0812]

Hi everyone,
Do you know how to compute the time execution of a specific part of code?
For example, executing a sequence in ORB_SLAM, I would like to know the time execution of ORB Extraction?

Thanks

[laxnpander]

There are endless ways to do this. Why not get current time before execution, get current time after execution and then compute delta t and write to .txt?

[Mechazo11]

I know this is kinda 5 years later, but what would be ideal wall time or cpu time? Referring to std::chrono library available from C++11 and onwards