Post #1032355

I built my own little benchmarking system in preparation for my RustWeek talk! It's inspired by Criterion, and it can measure multiple statistics (from perf) simultaneously. > cargo bench --bench perf -- test-data/crates.io-10k.txt alpha: warming up... alpha: measuring (307143488 iters) 17.63 ns/iter ± 0.69 52.69 real cycles/iter ± 2.38 53.14 ref cycles/iter ± 2.42 167.68 instructions/iter ± 3.36 0.38 LLC refs/iter ± 0.03 0.05 LLC misses/iter ± 0.01 26.28 branches/iter ± 0.40 0.50 branch mispreds/iter ± 0.07 beta: warming up... beta: measuring (350176962 iters) 15.42 ns/iter ± 0.71 45.83 real cycles/iter ± 2.42 46.15 ref cycles/iter ± 2.48 142.52 instructions/iter ± 2.68 0.34 LLC refs/iter ± 0.03 0.05 LLC misses/iter ± 0.01 22.04 branches/iter ± 0.36 0.48 branch mispreds/iter ± 0.07 Now to apply all the optimizations I have in mind and watch these per-iter counts go down :D #programming #rust #optimization #rustweek