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0cac915211
* Choose test inputs more thoroughly and systematically. * Check that `isqrt` and `checked_isqrt` have equivalent results for signed types, either equivalent numerically or equivalent as a panic and a `None`. * Check that `isqrt` has numerically-equivalent results for unsigned types and their `NonZero` counterparts. * Reuse `ilog10` benchmarks, plus benchmarks that use a uniform distribution.
112 lines
3.4 KiB
Rust
112 lines
3.4 KiB
Rust
mod dec2flt;
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mod flt2dec;
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mod int_log;
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mod int_pow;
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mod int_sqrt;
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use std::str::FromStr;
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use test::{black_box, Bencher};
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const ASCII_NUMBERS: [&str; 19] = [
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"0",
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"1",
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"2",
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"43",
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"765",
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"76567",
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"987245987",
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"-4aa32",
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"1786235",
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"8723095",
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"f##5s",
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"83638730",
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"-2345",
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"562aa43",
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"-1",
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"-0",
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"abc",
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"xyz",
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"c0ffee",
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];
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macro_rules! from_str_bench {
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($mac:ident, $t:ty) => {
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#[bench]
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fn $mac(b: &mut Bencher) {
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b.iter(|| {
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ASCII_NUMBERS
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.iter()
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.cycle()
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.take(5_000)
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.filter_map(|s| <$t>::from_str(black_box(s)).ok())
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.max()
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})
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}
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};
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}
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macro_rules! from_str_radix_bench {
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($mac:ident, $t:ty, $radix:expr) => {
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#[bench]
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fn $mac(b: &mut Bencher) {
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b.iter(|| {
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ASCII_NUMBERS
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.iter()
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.cycle()
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.take(5_000)
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.filter_map(|s| <$t>::from_str_radix(black_box(s), $radix).ok())
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.max()
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})
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}
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};
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}
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from_str_bench!(bench_u8_from_str, u8);
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from_str_radix_bench!(bench_u8_from_str_radix_2, u8, 2);
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from_str_radix_bench!(bench_u8_from_str_radix_10, u8, 10);
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from_str_radix_bench!(bench_u8_from_str_radix_16, u8, 16);
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from_str_radix_bench!(bench_u8_from_str_radix_36, u8, 36);
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from_str_bench!(bench_u16_from_str, u16);
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from_str_radix_bench!(bench_u16_from_str_radix_2, u16, 2);
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from_str_radix_bench!(bench_u16_from_str_radix_10, u16, 10);
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from_str_radix_bench!(bench_u16_from_str_radix_16, u16, 16);
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from_str_radix_bench!(bench_u16_from_str_radix_36, u16, 36);
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from_str_bench!(bench_u32_from_str, u32);
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from_str_radix_bench!(bench_u32_from_str_radix_2, u32, 2);
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from_str_radix_bench!(bench_u32_from_str_radix_10, u32, 10);
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from_str_radix_bench!(bench_u32_from_str_radix_16, u32, 16);
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from_str_radix_bench!(bench_u32_from_str_radix_36, u32, 36);
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from_str_bench!(bench_u64_from_str, u64);
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from_str_radix_bench!(bench_u64_from_str_radix_2, u64, 2);
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from_str_radix_bench!(bench_u64_from_str_radix_10, u64, 10);
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from_str_radix_bench!(bench_u64_from_str_radix_16, u64, 16);
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from_str_radix_bench!(bench_u64_from_str_radix_36, u64, 36);
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from_str_bench!(bench_i8_from_str, i8);
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from_str_radix_bench!(bench_i8_from_str_radix_2, i8, 2);
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from_str_radix_bench!(bench_i8_from_str_radix_10, i8, 10);
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from_str_radix_bench!(bench_i8_from_str_radix_16, i8, 16);
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from_str_radix_bench!(bench_i8_from_str_radix_36, i8, 36);
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from_str_bench!(bench_i16_from_str, i16);
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from_str_radix_bench!(bench_i16_from_str_radix_2, i16, 2);
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from_str_radix_bench!(bench_i16_from_str_radix_10, i16, 10);
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from_str_radix_bench!(bench_i16_from_str_radix_16, i16, 16);
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from_str_radix_bench!(bench_i16_from_str_radix_36, i16, 36);
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from_str_bench!(bench_i32_from_str, i32);
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from_str_radix_bench!(bench_i32_from_str_radix_2, i32, 2);
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from_str_radix_bench!(bench_i32_from_str_radix_10, i32, 10);
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from_str_radix_bench!(bench_i32_from_str_radix_16, i32, 16);
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from_str_radix_bench!(bench_i32_from_str_radix_36, i32, 36);
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from_str_bench!(bench_i64_from_str, i64);
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from_str_radix_bench!(bench_i64_from_str_radix_2, i64, 2);
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from_str_radix_bench!(bench_i64_from_str_radix_10, i64, 10);
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from_str_radix_bench!(bench_i64_from_str_radix_16, i64, 16);
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from_str_radix_bench!(bench_i64_from_str_radix_36, i64, 36);
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