1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
#![feature(test)]
#![allow(non_upper_case_globals, unused_must_use)]
extern crate atlatl;
extern crate fnv;
extern crate fst;
extern crate rand;
extern crate test;
#[macro_use] extern crate lazy_static;
use fnv::FnvHashMap;
use rand::distributions::{Distribution, Standard, Uniform};
use rand::prelude::*;
use std::collections::{BTreeMap, HashMap};
use std::iter::FromIterator;
use test::{Bencher, black_box};
use atlatl::fst::*;
lazy_static! {
static ref small : Vec<(Vec<u8>, u32)> = pairs(1000, (0, 16));
static ref sample_s_s : Vec<&'static [u8]> = key_sample(small.iter(), 4, 16);
static ref sample_s_m : Vec<&'static [u8]> = key_sample(small.iter(), 8, 16);
static ref sample_s_l : Vec<&'static [u8]> = key_sample(small.iter(), 16, 16);
static ref medium : Vec<(Vec<u8>, u32)> = pairs(10000, (0, 16));
static ref sample_m_s : Vec<&'static [u8]> = key_sample(medium.iter(), 4, 16);
static ref sample_m_m : Vec<&'static [u8]> = key_sample(medium.iter(), 8, 16);
static ref sample_m_l : Vec<&'static [u8]> = key_sample(medium.iter(), 16, 16);
static ref large : Vec<(Vec<u8>, u32)> = pairs(50000, (0, 16));
static ref sample_l_s : Vec<&'static [u8]> = key_sample(large.iter(), 4, 16);
static ref sample_l_m : Vec<&'static [u8]> = key_sample(large.iter(), 8, 16);
static ref sample_l_l : Vec<&'static [u8]> = key_sample(large.iter(), 16, 16);
}
fn pairs<U>(n : usize, (l, r) : (usize, usize)) -> Vec<(Vec<u8>, U)>
where Standard : Distribution<U>, U : Ord
{
let key_length = Uniform::from(l .. r);
let gen_key = |k_l| thread_rng().sample_iter::<u8, Standard>(&Standard).take(k_l).collect();
let mut v : Vec<(Vec<u8>, U)> =
thread_rng().sample_iter(&key_length).take(n)
.map(|k_l| (gen_key(k_l), rand::random()))
.collect();
v.sort();
v.dedup_by(|a, b| a.0 == b.0);
v
}
fn key_sample<'a, I, T>(kvs : I, max_len : usize, amount : usize) -> Vec<&'a [u8]>
where I : Iterator<Item = &'a (Vec<u8>, T)>
, T : 'a
{
let keys = kvs.map(|&(ref k, _)| k.as_slice())
.filter(|k| k.len() <= max_len);
rand::seq::sample_iter(&mut thread_rng(), keys, amount).unwrap()
}
macro_rules! _bench_coll {
($name:ident, $collection:ident, $source:ident, $sample:ident) => {
#[bench]
fn $name(b: &mut Bencher) {
let iter = $source.iter().map(|&(ref k, v)| (k.as_slice(), v));
let map : $collection<_, _> = $collection::from_iter(iter);
let key = $sample[0];
b.iter(|| {
black_box(map.get(key));
});
}
}
}
macro_rules! bench_fst {
($name:ident, $source:ident, $sample:ident) => {
#[bench]
fn $name(b: &mut Bencher) {
let iter = $source.iter().map(|&(ref k, v)| (k.as_slice(), v));
let fst_b = atlatl::fst::Builder::from_iter(iter).unwrap();
let fst : FST<usize, _> = FST::from_builder(&fst_b).unwrap();
let key = $sample[0];
b.iter(|| black_box(fst.get(key)));
}
}
}
macro_rules! bench_rawfst {
($name:ident, $source:ident, $sample:ident) => {
#[bench]
fn $name(b: &mut Bencher) {
use fst::raw::{Fst, Output};
let mut fst_b = fst::raw::Builder::memory();
let iter = $source.iter().map(|&(ref k, v)| (k.as_slice(), Output::new(v as u64)));
fst_b.extend_iter(iter);
let fst = Fst::from_bytes(fst_b.into_inner().unwrap()).unwrap();
let key = $sample[0];
b.iter(|| black_box(fst.get(key)));
}
}
}
macro_rules! bench_coll {
( $collection:ident
, $id_small_short:ident, $id_small_mid:ident, $id_small_long:ident
, $id_medium_short:ident, $id_medium_mid:ident, $id_medium_long:ident
, $id_large_short:ident, $id_large_mid:ident, $id_large_long:ident
) => {
_bench_coll! { $id_small_short, $collection, small, sample_s_s }
_bench_coll! { $id_small_mid, $collection, small, sample_s_m }
_bench_coll! { $id_small_long, $collection, small, sample_s_l }
_bench_coll! { $id_medium_short, $collection, medium, sample_m_s }
_bench_coll! { $id_medium_mid, $collection, medium, sample_m_m }
_bench_coll! { $id_medium_long, $collection, medium, sample_m_l }
_bench_coll! { $id_large_short, $collection, large, sample_l_s }
_bench_coll! { $id_large_mid, $collection, large, sample_l_m }
_bench_coll! { $id_large_long, $collection, large, sample_l_l }
}
}
bench_coll! { HashMap
, get_small_short_hashmap, get_small_mid_hashmap, get_small_long_hashmap
, get_medium_short_hashmap, get_medium_mid_hashmap, get_medium_long_hashmap
, get_large_short_hashmap, get_large_mid_hashmap, get_large_long_hashmap }
bench_coll! { FnvHashMap
, get_small_short_fnvhashmap, get_small_mid_fnvhashmap, get_small_long_fnvhashmap
, get_medium_short_fnvhashmap, get_medium_mid_fnvhashmap, get_medium_long_fnvhashmap
, get_large_short_fnvhashmap, get_large_mid_fnvhashmap, get_large_long_fnvhashmap }
bench_coll! { BTreeMap
, get_small_short_btree, get_small_mid_btree, get_small_long_btree
, get_medium_short_btree, get_medium_mid_btree, get_medium_long_btree
, get_large_short_btree, get_large_mid_btree, get_large_long_btree }
bench_fst! { get_small_short_fst, small, sample_s_s }
bench_fst! { get_small_mid_fst, small, sample_s_m }
bench_fst! { get_small_long_fst, small, sample_s_l }
bench_fst! { get_medium_short_fst, medium, sample_m_s }
bench_fst! { get_medium_mid_fst, medium, sample_m_m }
bench_fst! { get_medium_long_fst, medium, sample_m_l }
bench_fst! { get_large_short_fst, large, sample_l_s }
bench_fst! { get_large_mid_fst, large, sample_l_m }
bench_fst! { get_large_long_fst, large, sample_l_l }
bench_rawfst! { get_small_short_rawfst, small, sample_s_s }
bench_rawfst! { get_small_mid_rawfst, small, sample_s_m }
bench_rawfst! { get_small_long_rawfst, small, sample_s_l }
bench_rawfst! { get_medium_short_rawfst, medium, sample_m_s }
bench_rawfst! { get_medium_mid_rawfst, medium, sample_m_m }
bench_rawfst! { get_medium_long_rawfst, medium, sample_m_l }
bench_rawfst! { get_large_short_rawfst, large, sample_l_s }
bench_rawfst! { get_large_mid_rawfst, large, sample_l_m }
bench_rawfst! { get_large_long_rawfst, large, sample_l_l }
|
