How to benchmark memory usage of a function?

Question

I notice that Rust\'s test has a benchmark mode that will measure execution time in ns/iter, but I could not find a way to measure memory usage.

How wou

Answer 1

Currently, the only way to get allocation information is the alloc::heap::stats_print(); method (behind #![feature(alloc)]), which calls jemalloc's print_stats().

I'll update this answer with further information once I have learned what the output means.

(Note that I'm not going to accept this answer, so if someone comes up with a better solution...)