38 lines
1.1 KiB
Rust
38 lines
1.1 KiB
Rust
//! This sample demonstrates creating a thread pool with 4 tasks and spawning 40 tasks that spin
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//! for 100ms. It's expected to take about a second to run (assuming the machine has >= 4 logical
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//! cores)
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#![expect(clippy::print_stdout, reason = "Allowed in examples.")]
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use bevy_platform::time::Instant;
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use bevy_tasks::TaskPoolBuilder;
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use core::time::Duration;
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fn main() {
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let pool = TaskPoolBuilder::new()
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.thread_name("Busy Behavior ThreadPool".to_string())
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.num_threads(4)
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.build();
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let t0 = Instant::now();
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pool.scope(|s| {
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for i in 0..40 {
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s.spawn(async move {
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let now = Instant::now();
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while Instant::now() - now < Duration::from_millis(100) {
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// spin, simulating work being done
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}
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println!(
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"Thread {:?} index {} finished",
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std::thread::current().id(),
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i
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);
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});
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}
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});
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let t1 = Instant::now();
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println!("all tasks finished in {} secs", (t1 - t0).as_secs_f32());
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}
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