Prof

This is in a very early prototyping stage.

There are a lot of great tools that can profile Rust programs from the C / C++ ecosystem, this aims to wrap them in an easy-to-use CLI that will eventually be cross-platform, providing a human-readable output as well as json that can be piped to other tools such as UI's.

Quickstart

There are two versions:

Cargo

Runs on your Cargo targets

Install

cargo install cargo-prof

YAML output with bytes as text (human-readable)

cargo prof heap

allocated_total: 2KB 119B
frees: 11
allocations: 11
allocated_at_exit: 0B
blocks_at_exit: 0

JSON outputs with total bytes

cargo prof heap

{"allocated_total":2167,"frees":11,"allocations":11,"allocated_at_exit":0,"blocks_at_exit":0}

Standalone

Runs on any binary, e.g. this will

Install

cargo install prof

Profile ripgrep if rg is on your path

prof leak --bin rg

Pass ripgrep some arguments to stress it and see if any memory leaks

prof leak --bin rg -- a -uuu

Give grep a try as well and notice some data is leaked, even on a single file:

prof leak --bin grep -- a Cargo.toml