Reproducible memory leak measurement

[jamesdbrock]

I have a program that runs for some time then stops. I want to measure the total memory leakage in that program in a reproducible way, so that I know if changes to the program are improvements.

I want to script the production of a number named total_memory_leak_size with these properties:

1. If total_memory_leak_size goes down, then I know my program is leaking less memory.
2. If total_memory_leak_size goes to zero, then I know my program is leaking zero memory.

What is the best way to produce total_memory_leak_size with memray? (Is there a command that's like memray flamegraph --leaks but produces total_memory_leak_size instead of an HTML page?)

[pablogsal]

Although for now it's not a public, stable interface you can do:

from memray import FileReader

reader = FileReader("myfile.bin")
leaked = sum(record.size for record in reader.get_leaked_allocation_records())
print(leaked)