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// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
macro_rules! map_insert_rand_bench {
($name: ident, $n: expr, $map: ident) => (
#[bench]
pub fn $name(b: &mut ::test::Bencher) {
use std::rand;
use std::rand::Rng;
use test::black_box;
let n: usize = $n;
let mut map = $map::new();
// setup
let mut rng = rand::weak_rng();
for _ in 0..n {
let i = rng.gen::<usize>() % n;
map.insert(i, i);
}
// measure
b.iter(|| {
let k = rng.gen::<usize>() % n;
map.insert(k, k);
map.remove(&k);
});
black_box(map);
}
)
}
macro_rules! map_insert_seq_bench {
($name: ident, $n: expr, $map: ident) => (
#[bench]
pub fn $name(b: &mut ::test::Bencher) {
use test::black_box;
let mut map = $map::new();
let n: usize = $n;
// setup
for i in 0..n {
map.insert(i * 2, i * 2);
}
// measure
let mut i = 1;
b.iter(|| {
map.insert(i, i);
map.remove(&i);
i = (i + 2) % n;
});
black_box(map);
}
)
}
macro_rules! map_find_rand_bench {
($name: ident, $n: expr, $map: ident) => (
#[bench]
pub fn $name(b: &mut ::test::Bencher) {
use std::iter::Iterator;
use std::rand::Rng;
use std::rand;
use std::vec::Vec;
use test::black_box;
let mut map = $map::new();
let n: usize = $n;
// setup
let mut rng = rand::weak_rng();
let mut keys: Vec<_> = (0..n).map(|_| rng.gen::<usize>() % n).collect();
for &k in &keys {
map.insert(k, k);
}
rng.shuffle(&mut keys);
// measure
let mut i = 0;
b.iter(|| {
let t = map.get(&keys[i]);
i = (i + 1) % n;
black_box(t);
})
}
)
}
macro_rules! map_find_seq_bench {
($name: ident, $n: expr, $map: ident) => (
#[bench]
pub fn $name(b: &mut ::test::Bencher) {
use test::black_box;
let mut map = $map::new();
let n: usize = $n;
// setup
for i in 0..n {
map.insert(i, i);
}
// measure
let mut i = 0;
b.iter(|| {
let x = map.get(&i);
i = (i + 1) % n;
black_box(x);
})
}
)
}
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