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30 lines
1.3 KiB
Markdown
30 lines
1.3 KiB
Markdown
# day 1
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benchmarks:
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Ensure that `input.txt` contains many, many copies of the actual input, the actual input is way too small.
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`cargo build --release && hyperfine 'target/release/day01 part2 naive' 'target/release/day01 part2 zero_alloc' 'target/release/day01 part2 branchless' 'target/release/day01 part2 vectorized'`
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```
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Benchmark 1: target/release/day01 part2 naive
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Time (mean ± σ): 1.066 s ± 0.017 s [User: 1.048 s, System: 0.018 s]
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Range (min … max): 1.049 s … 1.099 s 10 runs
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Benchmark 2: target/release/day01 part2 zero_alloc
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Time (mean ± σ): 212.7 ms ± 3.5 ms [User: 195.0 ms, System: 17.6 ms]
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Range (min … max): 206.9 ms … 219.0 ms 14 runs
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Benchmark 3: target/release/day01 part2 branchless
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Time (mean ± σ): 137.2 ms ± 1.8 ms [User: 117.5 ms, System: 19.6 ms]
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Range (min … max): 133.5 ms … 142.2 ms 21 runs
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Benchmark 4: target/release/day01 part2 vectorized
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Time (mean ± σ): 87.9 ms ± 0.9 ms [User: 68.6 ms, System: 19.1 ms]
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Range (min … max): 86.5 ms … 90.6 ms 33 runs
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Summary
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target/release/day01 part2 vectorized ran
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1.56 ± 0.03 times faster than target/release/day01 part2 branchless
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2.42 ± 0.05 times faster than target/release/day01 part2 zero_alloc
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12.13 ± 0.22 times faster than target/release/day01 part2 naive
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```
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