How to Use the Dhat or Valgrind Memory Profiler with Rust

Use the dhat crate by enabling its feature flag and wrapping your binary's entry point with dhat::Profiler::new_heap() to generate a heap profile.

fn main() {
    let _profiler = dhat::Profiler::new_heap();
    // Your application code here
}

Add dhat = { version = "0.3.3", optional = true } to your Cargo.toml dependencies and enable it with cargo run --features dhat.

Dhat is a tool that tracks how your Rust program uses memory while it runs. It helps you find places where your code might be using too much memory or leaking it. Think of it like a fuel gauge for your program's memory usage, showing you exactly where the consumption is happening.