Closed folkertdev closed 2 months ago
by one iteration for better branch prediction
Benchmark 1 (152 runs): ./uncompress-baseline rs-chunked 15 silesia-small.tar.gz measurement mean ± σ min … max outliers delta wall_time 32.9ms ± 359us 32.3ms … 34.7ms 2 ( 1%) 0% peak_rss 24.1MB ± 60.8KB 24.0MB … 24.1MB 0 ( 0%) 0% cpu_cycles 98.2M ± 406K 97.9M … 101M 7 ( 5%) 0% instructions 272M ± 279 272M … 272M 1 ( 1%) 0% cache_references 2.11M ± 43.4K 2.03M … 2.23M 0 ( 0%) 0% cache_misses 56.6K ± 3.13K 50.5K … 75.6K 2 ( 1%) 0% branch_misses 1.20M ± 764 1.19M … 1.20M 6 ( 4%) 0% Benchmark 2 (155 runs): target/release/examples/blogpost-uncompress rs-chunked 15 silesia-small.tar.gz measurement mean ± σ min … max outliers delta wall_time 32.4ms ± 905us 31.4ms … 40.7ms 7 ( 5%) ⚡- 1.8% ± 0.5% peak_rss 24.1MB ± 60.1KB 24.0MB … 24.1MB 0 ( 0%) + 0.0% ± 0.1% cpu_cycles 94.3M ± 2.38M 93.5M … 122M 12 ( 8%) ⚡- 4.0% ± 0.4% instructions 263M ± 346 263M … 263M 3 ( 2%) ⚡- 3.3% ± 0.0% cache_references 2.33M ± 109K 2.22M … 3.53M 3 ( 2%) 💩+ 10.2% ± 0.9% cache_misses 44.7K ± 9.01K 32.3K … 130K 9 ( 6%) ⚡- 21.1% ± 2.7% branch_misses 1.20M ± 2.23K 1.20M … 1.22M 4 ( 3%) + 0.3% ± 0.0%
by one iteration for better branch prediction