Example that shows mongodb driver version 2.7 has a potential memory leak This repository is an example for issue: mongodb/mongo-rust-driver#978

• left axis is virtual size
• right axis is size
• probed by ps -C mongo-memleak-test -o pid=,size=,vsize=

Memory usage with mongodb driver version 2.7

Memory usage with mongodb driver version 2.6

Sample code in this repository - its a simple find_one which doesnt find a document

steps to reporoduce:

• database should be empty
• cargo build --release
• ./target/release/mongo-memleak-test

Tested on:

• AMD Ryzen 5950
• 64GB or RAM
• Gentoo Linux
• stable rustc 1.73.0 (cc66ad468 2023-10-03)
• default optimizations