How do you get how much memory a program uses?

I have two programs, one in C++, the other in assembler. I want to compare how much memory they use when running respectively. How can I do this?

I am doing the testing on Windows, but I also would like to know how to do it on Linux.

How much memory is an app using?

Tap Developer options and then tap Memory. In the resulting screen (Figure B), you'll see a list of the average memory used by the device in the past three hours (you can adjust the time frame, by tapping the time drop-down at the top). The Memory usage window in Android 12.

Which command can be used to see how much memory is used by a program?

vmstat Command to Report Virtual Memory Statistics. The vmstat command is a useful tool that reports virtual memory statistics. vmstat provides general information about processes, memory, paging, block IO, traps, and CPU activity.

On Linux, try valgrind. It's an amazing tool with too many features for mere mortals to totally comprehend. Have a look at valgrind's massif.