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Jan 29, 2024 · Operations

Profiling Rust Applications with macOS Instruments Time Profiler

This article explains how to use the macOS Instruments Time Profiler to perform CPU‑time profiling of Rust programs, demonstrates a sample π‑calculation benchmark, shows the required Cargo configuration, walks through recording and inspecting trace files, and applies the method to diagnose performance regressions in the Rspack project.