exeution time

[pavithrah]

what is the execution time of each instruction in c++?

[weaknessforcats]

1) using which compiler??
2) using which operating system??
3) using which processor??
4) single core or multi-core??
5) single threaded or multi-threaded?? How many threads in the thread pool??
6) how many active processes at time of mreasurement??
7) what is the swap file load level??
8) How many committed memory pool pages??
9) etc..
10)etc...