70 lines
1.5 KiB
Rust
70 lines
1.5 KiB
Rust
|
#![feature(test)]
|
||
|
|
|
||
|
|
extern crate test;
|
||
|
|
|
||
|
|
use crossbeam_epoch::{self as epoch, Owned};
|
||
|
|
use crossbeam_utils::thread::scope;
|
||
|
|
use test::Bencher;
|
||
|
|
|
||
|
|
#[bench]
|
||
|
|
fn single_alloc_defer_free(b: &mut Bencher) {
|
||
|
|
b.iter(|| {
|
||
|
|
let guard = &epoch::pin();
|
||
|
|
let p = Owned::new(1).into_shared(guard);
|
||
|
|
unsafe {
|
||
|
|
guard.defer_destroy(p);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
#[bench]
|
||
|
|
fn single_defer(b: &mut Bencher) {
|
||
|
|
b.iter(|| {
|
||
|
|
let guard = &epoch::pin();
|
||
|
|
guard.defer(move || ());
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
#[bench]
|
||
|
|
fn multi_alloc_defer_free(b: &mut Bencher) {
|
||
|
|
const THREADS: usize = 16;
|
||
|
|
const STEPS: usize = 10_000;
|
||
|
|
|
||
|
|
b.iter(|| {
|
||
|
|
scope(|s| {
|
||
|
|
for _ in 0..THREADS {
|
||
|
|
s.spawn(|_| {
|
||
|
|
for _ in 0..STEPS {
|
||
|
|
let guard = &epoch::pin();
|
||
|
|
let p = Owned::new(1).into_shared(guard);
|
||
|
|
unsafe {
|
||
|
|
guard.defer_destroy(p);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
})
|
||
|
|
.unwrap();
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
#[bench]
|
||
|
|
fn multi_defer(b: &mut Bencher) {
|
||
|
|
const THREADS: usize = 16;
|
||
|
|
const STEPS: usize = 10_000;
|
||
|
|
|
||
|
|
b.iter(|| {
|
||
|
|
scope(|s| {
|
||
|
|
for _ in 0..THREADS {
|
||
|
|
s.spawn(|_| {
|
||
|
|
for _ in 0..STEPS {
|
||
|
|
let guard = &epoch::pin();
|
||
|
|
guard.defer(move || ());
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
})
|
||
|
|
.unwrap();
|
||
|
|
});
|
||
|
|
}
|