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 bash cargo install cargo-prof YAML output with bytes as text (human-readable) bash cargo prof heap yaml allocated_total: 2KB 119B frees: 11 allocations: 11 allocated_at_exit: 0B blocks_at_exit: 0 JSON outputs with total bytes bash cargo prof heap json {"allocated_total":2167,"frees":11,"allocations":11,"allocated_at_exit":0,"blocks_at_exit":0}

Standalone

Runs on any binary

Install bash 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 bash prof leak --bin rg -- a -uuu yaml definitely_lost: 0B indirectly_lost: 0B possibly_lost: 528B still_reachable: 369KB 218B supressed: 0B definitely_lost_blocks: 0 indrectly_lost_blocks: 0 possibly_lost_blocks: 9 still_reachable_blocks: 89 supressed_blocks: 0

Give grep a try as well and notice some data is leaked, even on a single file: bash prof leak --bin grep -- a Cargo.toml yaml definitely_lost: 272B indirectly_lost: 352B possibly_lost: 128B still_reachable: 109KB 490B supressed: 0B definitely_lost_blocks: 272 indrectly_lost_blocks: 11 possibly_lost_blocks: 1 still_reachable_blocks: 15 supressed_blocks: 0