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Add some new benchmark tests to libstd/vec #10582

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Nov 22, 2013
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72 changes: 70 additions & 2 deletions src/libstd/vec.rs
Original file line number Diff line number Diff line change
Expand Up @@ -3862,10 +3862,10 @@ mod bench {
}

#[bench]
fn add(b: &mut BenchHarness) {
fn add(bh: &mut BenchHarness) {
let xs: &[int] = [5, ..10];
let ys: &[int] = [5, ..10];
do b.iter() {
do bh.iter() {
xs + ys;
}
}
Expand All @@ -3885,4 +3885,72 @@ mod bench {
xss.connect_vec(&0);
}
}

#[bench]
fn push(bh: &mut BenchHarness) {
let mut vec: ~[uint] = ~[0u];
do bh.iter() {
vec.push(0);
}
}

#[bench]
fn starts_with_same_vector(bh: &mut BenchHarness) {
let vec: ~[uint] = vec::from_fn(100, |i| i);
do bh.iter() {
vec.starts_with(vec);
}
}

#[bench]
fn starts_with_single_element(bh: &mut BenchHarness) {
let vec: ~[uint] = ~[0u];
do bh.iter() {
vec.starts_with(vec);
}
}

#[bench]
fn starts_with_diff_one_element_at_end(bh: &mut BenchHarness) {
let vec: ~[uint] = vec::from_fn(100, |i| i);
let mut match_vec: ~[uint] = vec::from_fn(99, |i| i);
match_vec.push(0);
do bh.iter() {
vec.starts_with(match_vec);
}
}

#[bench]
fn ends_with_same_vector(bh: &mut BenchHarness) {
let vec: ~[uint] = vec::from_fn(100, |i| i);
do bh.iter() {
vec.ends_with(vec);
}
}

#[bench]
fn ends_with_single_element(bh: &mut BenchHarness) {
let vec: ~[uint] = ~[0u];
do bh.iter() {
vec.ends_with(vec);
}
}

#[bench]
fn ends_with_diff_one_element_at_beginning(bh: &mut BenchHarness) {
let vec: ~[uint] = vec::from_fn(100, |i| i);
let mut match_vec: ~[uint] = vec::from_fn(100, |i| i);
match_vec[0] = 200;
do bh.iter() {
vec.starts_with(match_vec);
}
}

#[bench]
fn contains_last_element(bh: &mut BenchHarness) {
let vec: ~[uint] = vec::from_fn(100, |i| i);
do bh.iter() {
vec.contains(&99u);
}
}
}