Culpert is an experimental Rust heap allocation profiler that attributes sampled allocations to tracing spans, enabling regression detection via pprof-compatible profiles and CI-friendly diffs. It wraps the global allocator and uses geometric sampling with Bernstein correction for unbiased estimates, already catching real memory leaks at Cloudflare.
Background
Heap profiling tools are essential for identifying memory leaks and performance regressions in Rust services. Cloudflare has been actively contributing to the Rust observability ecosystem with tools like Foundations and tracing integrations.
- Source
- Lobsters
- Published
- Oct 10, 2026 at 10:49 PM
- Score
- 6.0 / 10