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#![feature(test)]
extern crate test;
use std::sync::Barrier;
use crossbeam_epoch as epoch;
use crossbeam_utils::thread::scope;
use test::Bencher;
#[bench]
fn single_flush(b: &mut Bencher) {
const THREADS: usize = 16;
let start = Barrier::new(THREADS + 1);
let end = Barrier::new(THREADS + 1);
scope(|s| {
for _ in 0..THREADS {
s.spawn(|_| {
epoch::pin();
start.wait();
end.wait();
});
}
start.wait();
b.iter(|| epoch::pin().flush());
end.wait();
})
.unwrap();
}
#[bench]
fn multi_flush(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.flush();
}
});
}
})
.unwrap();
});
}
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