culpert - rust heap profiling with span awareness and regression tooling
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Highly actionable open source observability tool for Rust, directly matching the reader's focus on developer experience and debugging.
culpert Warning Culpert is still very experimental and in development, use in production at your own risk. Introduction Per-span heap allocation profiler for Rust services. Culpert is a sampled heap-allocation profiler for Rust libraries and services. It attributes allocations to existing spans and exports pprof-compatible profiles and CI-friendly diffs, helping catch allocation regressions before release. It integrates with tracing , Cloudflare Foundations, or its own #[culpert::span_fn] macro. Culpert has already caught several real allocation