diff options
Diffstat (limited to 'vendor/ahash-0.7.6/tests/bench.rs')
-rw-r--r-- | vendor/ahash-0.7.6/tests/bench.rs | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/vendor/ahash-0.7.6/tests/bench.rs b/vendor/ahash-0.7.6/tests/bench.rs new file mode 100644 index 000000000..9e6dccc48 --- /dev/null +++ b/vendor/ahash-0.7.6/tests/bench.rs @@ -0,0 +1,154 @@ +use ahash::{CallHasher, RandomState}; +use criterion::*; +use fxhash::FxHasher; +use std::collections::hash_map::DefaultHasher; +use std::hash::{Hash, Hasher}; + +#[cfg(any( + all(any(target_arch = "x86", target_arch = "x86_64"), target_feature = "aes", not(miri)), + all(any(target_arch = "arm", target_arch = "aarch64"), target_feature = "crypto", not(miri), feature = "stdsimd") +))] +fn aeshash<H: Hash>(b: &H) -> u64 { + let build_hasher = RandomState::with_seeds(1, 2, 3, 4); + H::get_hash(b, &build_hasher) +} +#[cfg(not(any( + all(any(target_arch = "x86", target_arch = "x86_64"), target_feature = "aes", not(miri)), + all(any(target_arch = "arm", target_arch = "aarch64"), target_feature = "crypto", not(miri), feature = "stdsimd") +)))] +fn aeshash<H: Hash>(_b: &H) -> u64 { + panic!("aes must be enabled") +} + +#[cfg(not(any( + all(any(target_arch = "x86", target_arch = "x86_64"), target_feature = "aes", not(miri)), + all(any(target_arch = "arm", target_arch = "aarch64"), target_feature = "crypto", not(miri), feature = "stdsimd") +)))] +fn fallbackhash<H: Hash>(b: &H) -> u64 { + let build_hasher = RandomState::with_seeds(1, 2, 3, 4); + H::get_hash(b, &build_hasher) +} +#[cfg(any( + all(any(target_arch = "x86", target_arch = "x86_64"), target_feature = "aes", not(miri)), + all(any(target_arch = "arm", target_arch = "aarch64"), target_feature = "crypto", not(miri), feature = "stdsimd") +))] +fn fallbackhash<H: Hash>(_b: &H) -> u64 { + panic!("aes must be disabled") +} + +fn fnvhash<H: Hash>(b: &H) -> u64 { + let mut hasher = fnv::FnvHasher::default(); + b.hash(&mut hasher); + hasher.finish() +} + +fn siphash<H: Hash>(b: &H) -> u64 { + let mut hasher = DefaultHasher::default(); + b.hash(&mut hasher); + hasher.finish() +} + +fn fxhash<H: Hash>(b: &H) -> u64 { + let mut hasher = FxHasher::default(); + b.hash(&mut hasher); + hasher.finish() +} + +fn seahash<H: Hash>(b: &H) -> u64 { + let mut hasher = seahash::SeaHasher::default(); + b.hash(&mut hasher); + hasher.finish() +} + +const STRING_LENGTHS: [u32; 12] = [1, 3, 4, 7, 8, 15, 16, 24, 33, 68, 132, 1024]; + +fn gen_strings() -> Vec<String> { + STRING_LENGTHS + .iter() + .map(|len| { + let mut string = String::default(); + for pos in 1..=*len { + let c = (48 + (pos % 10) as u8) as char; + string.push(c); + } + string + }) + .collect() +} + +const U8_VALUE: u8 = 123; +const U16_VALUE: u16 = 1234; +const U32_VALUE: u32 = 12345678; +const U64_VALUE: u64 = 1234567890123456; +const U128_VALUE: u128 = 12345678901234567890123456789012; + +fn bench_ahash(c: &mut Criterion) { + let mut group = c.benchmark_group("aeshash"); + group.bench_with_input("u8", &U8_VALUE, |b, s| b.iter(|| black_box(aeshash(s)))); + group.bench_with_input("u16", &U16_VALUE, |b, s| b.iter(|| black_box(aeshash(s)))); + group.bench_with_input("u32", &U32_VALUE, |b, s| b.iter(|| black_box(aeshash(s)))); + group.bench_with_input("u64", &U64_VALUE, |b, s| b.iter(|| black_box(aeshash(s)))); + group.bench_with_input("u128", &U128_VALUE, |b, s| b.iter(|| black_box(aeshash(s)))); + group.bench_with_input("string", &gen_strings(), |b, s| b.iter(|| black_box(aeshash(s)))); +} + +fn bench_fallback(c: &mut Criterion) { + let mut group = c.benchmark_group("fallback"); + group.bench_with_input("u8", &U8_VALUE, |b, s| b.iter(|| black_box(fallbackhash(s)))); + group.bench_with_input("u16", &U16_VALUE, |b, s| b.iter(|| black_box(fallbackhash(s)))); + group.bench_with_input("u32", &U32_VALUE, |b, s| b.iter(|| black_box(fallbackhash(s)))); + group.bench_with_input("u64", &U64_VALUE, |b, s| b.iter(|| black_box(fallbackhash(s)))); + group.bench_with_input("u128", &U128_VALUE, |b, s| b.iter(|| black_box(fallbackhash(s)))); + group.bench_with_input("string", &gen_strings(), |b, s| b.iter(|| black_box(fallbackhash(s)))); +} + +fn bench_fx(c: &mut Criterion) { + let mut group = c.benchmark_group("fx"); + group.bench_with_input("u8", &U8_VALUE, |b, s| b.iter(|| black_box(fxhash(s)))); + group.bench_with_input("u16", &U16_VALUE, |b, s| b.iter(|| black_box(fxhash(s)))); + group.bench_with_input("u32", &U32_VALUE, |b, s| b.iter(|| black_box(fxhash(s)))); + group.bench_with_input("u64", &U64_VALUE, |b, s| b.iter(|| black_box(fxhash(s)))); + group.bench_with_input("u128", &U128_VALUE, |b, s| b.iter(|| black_box(fxhash(s)))); + group.bench_with_input("string", &gen_strings(), |b, s| b.iter(|| black_box(fxhash(s)))); +} + +fn bench_fnv(c: &mut Criterion) { + let mut group = c.benchmark_group("fnv"); + group.bench_with_input("u8", &U8_VALUE, |b, s| b.iter(|| black_box(fnvhash(s)))); + group.bench_with_input("u16", &U16_VALUE, |b, s| b.iter(|| black_box(fnvhash(s)))); + group.bench_with_input("u32", &U32_VALUE, |b, s| b.iter(|| black_box(fnvhash(s)))); + group.bench_with_input("u64", &U64_VALUE, |b, s| b.iter(|| black_box(fnvhash(s)))); + group.bench_with_input("u128", &U128_VALUE, |b, s| b.iter(|| black_box(fnvhash(s)))); + group.bench_with_input("string", &gen_strings(), |b, s| b.iter(|| black_box(fnvhash(s)))); +} + +fn bench_sea(c: &mut Criterion) { + let mut group = c.benchmark_group("sea"); + group.bench_with_input("u8", &U8_VALUE, |b, s| b.iter(|| black_box(seahash(s)))); + group.bench_with_input("u16", &U16_VALUE, |b, s| b.iter(|| black_box(seahash(s)))); + group.bench_with_input("u32", &U32_VALUE, |b, s| b.iter(|| black_box(seahash(s)))); + group.bench_with_input("u64", &U64_VALUE, |b, s| b.iter(|| black_box(seahash(s)))); + group.bench_with_input("u128", &U128_VALUE, |b, s| b.iter(|| black_box(seahash(s)))); + group.bench_with_input("string", &gen_strings(), |b, s| b.iter(|| black_box(seahash(s)))); +} + +fn bench_sip(c: &mut Criterion) { + let mut group = c.benchmark_group("sip"); + group.bench_with_input("u8", &U8_VALUE, |b, s| b.iter(|| black_box(siphash(s)))); + group.bench_with_input("u16", &U16_VALUE, |b, s| b.iter(|| black_box(siphash(s)))); + group.bench_with_input("u32", &U32_VALUE, |b, s| b.iter(|| black_box(siphash(s)))); + group.bench_with_input("u64", &U64_VALUE, |b, s| b.iter(|| black_box(siphash(s)))); + group.bench_with_input("u128", &U128_VALUE, |b, s| b.iter(|| black_box(siphash(s)))); + group.bench_with_input("string", &gen_strings(), |b, s| b.iter(|| black_box(siphash(s)))); +} + +criterion_main!(benches); +criterion_group!( + benches, + bench_ahash, + bench_fallback, + bench_fx, + bench_fnv, + bench_sea, + bench_sip +); 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