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|
use std::{
sync::{Arc, Barrier},
thread,
time::{Duration, Instant},
};
use tracing::dispatcher::Dispatch;
#[derive(Clone)]
pub(super) struct MultithreadedBench {
start: Arc<Barrier>,
end: Arc<Barrier>,
dispatch: Dispatch,
}
impl MultithreadedBench {
pub(super) fn new(dispatch: Dispatch) -> Self {
Self {
start: Arc::new(Barrier::new(5)),
end: Arc::new(Barrier::new(5)),
dispatch,
}
}
pub(super) fn thread(&self, f: impl FnOnce() + Send + 'static) -> &Self {
self.thread_with_setup(|start| {
start.wait();
f()
})
}
pub(super) fn thread_with_setup(&self, f: impl FnOnce(&Barrier) + Send + 'static) -> &Self {
let this = self.clone();
thread::spawn(move || {
let dispatch = this.dispatch.clone();
tracing::dispatcher::with_default(&dispatch, move || {
f(&*this.start);
this.end.wait();
})
});
self
}
pub(super) fn run(&self) -> Duration {
self.start.wait();
let t0 = Instant::now();
self.end.wait();
t0.elapsed()
}
}
|
