hotpath-rs
A simple Rust profiler that shows exactly why code is slow
“Rust Profiler for CPU, Memory, SQL & Async Performance | hotpath-rs”its own headline
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What it offers as proof3
“…blog -> https://hotpath.rs/blog/”
“…https://github.com/pawurb/hotpath-rs/edit/main/docs/src/introduction.md”
“Used by 117 open-source projects , including:”
What it names4
“…hotpath init downloads the hotpath_init agent skill from GitHub and starts your installed Claude Code or Codex with it as setup instructions.”
“SQL query profiling - query performance metrics for sqlx and Diesel.”
“Tokio runtime monitoring - workers, scheduling and queues.”
“HTTP calls profiling - per-endpoint latency and error metrics for reqwest.”
What it calls itself1
“…hotpath-rs is an easy-to-configure Rust performance profiling toolkit that shows exactly where your code spends time, burns CPU, and allocates memory.”
How to reach it1
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About
hotpath-rs is an easy-to-configure Rust performance profiling toolkit that shows exactly where your code spends time, burns CPU, and allocates memory. It helps you distinguish between functions that are slow because they wait on I/O and those that are CPU-intensive. Instrument functions, channels, futures, streams, and SQL queries to find bottlenecks and focus optimizations where they matter most. Get actionable insights into time, memory, and async data flow with minimal setup. You can use it to produce one-off performance (timing, memory or CPU) reports, monitor throughput, performance and max queue depth of instrumented channels, analyze SQL calls performance, or use the live TUI dashboard to monitor real-time performance and async data flow metrics with debug info.
