Profile a Rust program, locate real hot spots, and apply data-driven optimizations without premature micro-tuning.
## CONTEXT Rust gives you zero-cost abstractions, but real programs still leave performance on the table through unnecessary allocations, poor cache locality, redundant cloning, and missed SIMD or inlining opportunities. In 2026 the standard toolchain is cargo-flamegraph, perf, samply, and Criterion for benchmarks,…
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