1 #![feature(test)]
2 extern crate test;
3 extern crate fnv;
4 extern crate fxhash;
5 extern crate seahash;
6
7 use std::hash::{Hash, Hasher};
8 use test::{Bencher, black_box};
9
10
fnvhash<H: Hash>(b: H) -> u6411 fn fnvhash<H: Hash>(b: H) -> u64 {
12 let mut hasher = fnv::FnvHasher::default();
13 b.hash(&mut hasher);
14 hasher.finish()
15 }
16
seahash<H: Hash>(b: H) -> u6417 fn seahash<H: Hash>(b: H) -> u64 {
18 let mut hasher = seahash::SeaHasher::default();
19 b.hash(&mut hasher);
20 hasher.finish()
21 }
22
23 macro_rules! generate_benches {
24 ($($fx:ident, $fx32:ident, $fx64:ident, $fnv:ident, $sea:ident, $s:expr),* $(,)*) => (
25 $(
26 #[bench]
27 fn $fx(b: &mut Bencher) {
28 let s = black_box($s);
29 b.iter(|| {
30 fxhash::hash(&s)
31 })
32 }
33
34 #[bench]
35 fn $fx32(b: &mut Bencher) {
36 let s = black_box($s);
37 b.iter(|| {
38 fxhash::hash32(&s)
39 })
40 }
41
42 #[bench]
43 fn $fx64(b: &mut Bencher) {
44 let s = black_box($s);
45 b.iter(|| {
46 fxhash::hash64(&s)
47 })
48 }
49
50 #[bench]
51 fn $fnv(b: &mut Bencher) {
52 let s = black_box($s);
53 b.iter(|| {
54 fnvhash(&s)
55 })
56 }
57
58 #[bench]
59 fn $sea(b: &mut Bencher) {
60 let s = black_box($s);
61 b.iter(|| {
62 seahash(&s)
63 })
64 }
65 )*
66 )
67 }
68
69 generate_benches!(
70 bench_fx_003, bench_fx32_003, bench_fx64_003, bench_fnv_003, bench_seahash_003, "123",
71 bench_fx_004, bench_fx32_004, bench_fx64_004, bench_fnv_004, bench_seahash_004, "1234",
72 bench_fx_011, bench_fx32_011, bench_fx64_011, bench_fnv_011, bench_seahash_011, "12345678901",
73 bench_fx_012, bench_fx32_012, bench_fx64_012, bench_fnv_012, bench_seahash_012, "123456789012",
74 bench_fx_023, bench_fx32_023, bench_fx64_023, bench_fnv_023, bench_seahash_023, "12345678901234567890123",
75 bench_fx_024, bench_fx32_024, bench_fx64_024, bench_fnv_024, bench_seahash_024, "123456789012345678901234",
76 bench_fx_068, bench_fx32_068, bench_fx64_068, bench_fnv_068, bench_seahash_068, "11234567890123456789012345678901234567890123456789012345678901234567",
77 bench_fx_132, bench_fx32_132, bench_fx64_132, bench_fnv_132, bench_seahash_132, "112345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901",
78 );