Where in the VS2019 can I see the execution time of the code? Sorry for stupid question
1 Answers
That depends on the precision you're interested in. If milliseconds then in Visual Studio 2019 you can see the time between two breakpoints under Diagnostic Tools -> Events -> Duration (opens automatically in Debug mode, or use Ctrl+Alt+F2).
Some notes:
- Make sure to measure performance of the Release configuration. Debug build performance is meaningless.
- Make sure the code under test is not optimized away.
- If the code takes less than ~100ms to run, run it multiple times in a loop so that the measurement is on the order of 100ms or more, for better precision.
- I don't know about C#. I assume VS offers similar features for C#.
For a higher precision C++ code performance is measured in code itself using e.g. the <chrono> package.
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