perf: use bit shifts for power-of-two formatting
#565Comparing
DaniPopes:dani/fmt-pow2-fast-paths
(edd7b13
) withmain
(c147f59
)×7.7
- Improvement
- 12
- Untouched
- 374
Benchmarks
386 total
fmt/hex/4096
benches/bench.rs::benches::benches::group×7.7
4,519.7 µs584.9 µs
fmt/octal/4096
benches/bench.rs::benches::benches::group×3.5
4.4 ms1.3 ms
fmt/binary/4096
benches/bench.rs::benches::benches::group×2.3
5.3 ms2.3 ms
fmt/hex/192
benches/bench.rs::benches::benches::group+81%
6.4 ms3.6 ms
fmt/hex/512
benches/bench.rs::benches::benches::group+77%
14.4 ms8.1 ms
fmt/hex/256
benches/bench.rs::benches::benches::group+77%
8 ms4.5 ms
fmt/hex/384
benches/bench.rs::benches::benches::group+77%
11.2 ms6.3 ms
fmt/octal/256
benches/bench.rs::benches::benches::group+19%
8.6 ms7.3 ms
fmt/octal/512
benches/bench.rs::benches::benches::group+15%
15.8 ms13.7 ms
to/f64/4096
benches/bench.rs::benches::benches::group+11%
29.4 µs26.3 µs
to/f32/4096
benches/bench.rs::benches::benches::group+11%
29.2 µs26.3 µs
most_significant_bits/4096/4096
benches/bench.rs::benches::benches::group+11%
28.9 µs26.1 µs
fmt/octal/384
benches/bench.rs::benches::benches::group+9%
12.2 ms11.2 ms
parse/hex/4096/zero
benches/bench.rs::benches::benches::group+5%
62.5 µs59.6 µs
parse/binary/4096/zero
benches/bench.rs::benches::benches::group+5%
62.5 µs59.6 µs
parse/decimal/4096/zero
benches/bench.rs::benches::benches::group+5%
62.5 µs59.6 µs
parse/octal/4096/zero
benches/bench.rs::benches::benches::group+5%
62.5 µs59.7 µs
neg/4096
benches/bench.rs::benches::benches::group+4%
72.9 µs70 µs
add/4096
benches/bench.rs::benches::benches::group+3%
96.1 µs93.2 µs
sub/4096
benches/bench.rs::benches::benches::group+3%
96.1 µs93.1 µs
is_zero/4096
benches/bench.rs::benches::benches::group+1%
4.1 µs4.1 µs
fmt/octal/192
benches/bench.rs::benches::benches::group0%
6.8 ms6.8 ms
base_convert/384/384/10/be
benches/bench.rs::benches::benches::group0%
64.7 ms64.5 ms
base_convert/512/512/10/be
benches/bench.rs::benches::benches::group0%
110.2 ms109.9 ms
from/f64/4096
benches/bench.rs::benches::benches::group0%
46.3 µs46.3 µs
Commits
Click on a commit to change the comparison rangeBase
main
c147f59
×7.7
perf: use bit shifts for power-of-two formatting
edd7b13
23 hours ago
by DaniPopes