“Profiling Rust Memory Usage with jemalloc”
summary
Shows how to get Go-style pprof heap profiles from Rust by using jemallocator crate as the global allocator and the rust-jemalloc-pprof converter to emit pprof-format dumps. Demonstrates configuring jemalloc with its profiling symbol, adding an HTTP handler to trigger heap dumps, and visualizing profiles in Parca. Recreates a toy leak that grows about 1.8 MB/s, produces flame graphs and a memory-over-time chart, and validates that the pipeline yields actionable allocation stacks.
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