mirror of
https://github.com/bevyengine/bevy
synced 2024-11-30 00:20:20 +00:00
d8974e7c3d
What is says on the tin. This has got more to do with making `clippy` slightly more *quiet* than it does with changing anything that might greatly impact readability or performance. that said, deriving `Default` for a couple of structs is a nice easy win
33 lines
1 KiB
Rust
33 lines
1 KiB
Rust
use bevy_tasks::TaskPoolBuilder;
|
|
|
|
// This sample demonstrates creating a thread pool with 4 tasks and spawning 40 tasks that spin
|
|
// for 100ms. It's expected to take about a second to run (assuming the machine has >= 4 logical
|
|
// cores)
|
|
|
|
fn main() {
|
|
let pool = TaskPoolBuilder::new()
|
|
.thread_name("Busy Behavior ThreadPool".to_string())
|
|
.num_threads(4)
|
|
.build();
|
|
|
|
let t0 = instant::Instant::now();
|
|
pool.scope(|s| {
|
|
for i in 0..40 {
|
|
s.spawn(async move {
|
|
let now = instant::Instant::now();
|
|
while instant::Instant::now() - now < instant::Duration::from_millis(100) {
|
|
// spin, simulating work being done
|
|
}
|
|
|
|
println!(
|
|
"Thread {:?} index {} finished",
|
|
std::thread::current().id(),
|
|
i
|
|
);
|
|
});
|
|
}
|
|
});
|
|
|
|
let t1 = instant::Instant::now();
|
|
println!("all tasks finished in {} secs", (t1 - t0).as_secs_f32());
|
|
}
|