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bench larger allocations

This commit is contained in:
The8472 2019-11-27 22:19:15 +01:00
parent fd16202e36
commit e1151844fa
1 changed files with 6 additions and 6 deletions
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12
library/alloc/benches/vec.rs
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@ -504,10 +504,10 @@ fn bench_in_place_recycle(b: &mut test::Bencher) {
#[bench] #[bench]
fn bench_in_place_zip_recycle(b: &mut test::Bencher) { fn bench_in_place_zip_recycle(b: &mut test::Bencher) {
let mut data = vec![0u8; 256]; let mut data = vec![0u8; 1000];
let mut rng = rand::thread_rng(); let mut rng = rand::thread_rng();
let mut subst = (0..=255u8).collect::<Vec<_>>(); let mut subst = vec![0u8; 1000];
subst.shuffle(&mut rng); rng.fill_bytes(&mut subst[..]);
b.iter(|| { b.iter(|| {
let tmp = std::mem::replace(&mut data, Vec::new()); let tmp = std::mem::replace(&mut data, Vec::new());
@ -517,7 +517,7 @@ fn bench_in_place_zip_recycle(b: &mut test::Bencher) {
.enumerate() .enumerate()
.map(|(i, (d, s))| d.wrapping_add(i as u8) ^ s) .map(|(i, (d, s))| d.wrapping_add(i as u8) ^ s)
.collect::<Vec<_>>(); .collect::<Vec<_>>();
assert_eq!(mangled.len(), 256); assert_eq!(mangled.len(), 1000);
std::mem::replace(&mut data, black_box(mangled)); std::mem::replace(&mut data, black_box(mangled));
}); });
} }
@ -526,8 +526,8 @@ fn bench_in_place_zip_recycle(b: &mut test::Bencher) {
fn bench_in_place_zip_iter_mut(b: &mut test::Bencher) { fn bench_in_place_zip_iter_mut(b: &mut test::Bencher) {
let mut data = vec![0u8; 256]; let mut data = vec![0u8; 256];
let mut rng = rand::thread_rng(); let mut rng = rand::thread_rng();
let mut subst = (0..=255u8).collect::<Vec<_>>(); let mut subst = vec![0u8; 1000];
subst.shuffle(&mut rng); rng.fill_bytes(&mut subst[..]);
b.iter(|| { b.iter(|| {
data.iter_mut().enumerate().for_each(|(i, d)| { data.iter_mut().enumerate().for_each(|(i, d)| {