From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../rust/crossbeam-channel/benches/crossbeam.rs    | 712 +++++++++++++++++++++
 1 file changed, 712 insertions(+)
 create mode 100644 third_party/rust/crossbeam-channel/benches/crossbeam.rs

(limited to 'third_party/rust/crossbeam-channel/benches')

diff --git a/third_party/rust/crossbeam-channel/benches/crossbeam.rs b/third_party/rust/crossbeam-channel/benches/crossbeam.rs
new file mode 100644
index 0000000000..1c05222947
--- /dev/null
+++ b/third_party/rust/crossbeam-channel/benches/crossbeam.rs
@@ -0,0 +1,712 @@
+#![feature(test)]
+
+extern crate test;
+
+use crossbeam_channel::{bounded, unbounded};
+use crossbeam_utils::thread::scope;
+use test::Bencher;
+
+const TOTAL_STEPS: usize = 40_000;
+
+mod unbounded {
+    use super::*;
+
+    #[bench]
+    fn create(b: &mut Bencher) {
+        b.iter(unbounded::<i32>);
+    }
+
+    #[bench]
+    fn oneshot(b: &mut Bencher) {
+        b.iter(|| {
+            let (s, r) = unbounded::<i32>();
+            s.send(0).unwrap();
+            r.recv().unwrap();
+        });
+    }
+
+    #[bench]
+    fn inout(b: &mut Bencher) {
+        let (s, r) = unbounded::<i32>();
+        b.iter(|| {
+            s.send(0).unwrap();
+            r.recv().unwrap();
+        });
+    }
+
+    #[bench]
+    fn par_inout(b: &mut Bencher) {
+        let threads = num_cpus::get();
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = unbounded::<i32>();
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for i in 0..steps {
+                            s.send(i as i32).unwrap();
+                            r.recv().unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn spsc(b: &mut Bencher) {
+        let steps = TOTAL_STEPS;
+        let (s, r) = unbounded::<i32>();
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            scope.spawn(|_| {
+                while r1.recv().is_ok() {
+                    for i in 0..steps {
+                        s.send(i as i32).unwrap();
+                    }
+                    s2.send(()).unwrap();
+                }
+            });
+
+            b.iter(|| {
+                s1.send(()).unwrap();
+                for _ in 0..steps {
+                    r.recv().unwrap();
+                }
+                r2.recv().unwrap();
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn spmc(b: &mut Bencher) {
+        let threads = num_cpus::get() - 1;
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = unbounded::<i32>();
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for _ in 0..steps {
+                            r.recv().unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for i in 0..steps * threads {
+                    s.send(i as i32).unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn mpsc(b: &mut Bencher) {
+        let threads = num_cpus::get() - 1;
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = unbounded::<i32>();
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for i in 0..steps {
+                            s.send(i as i32).unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for _ in 0..steps * threads {
+                    r.recv().unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn mpmc(b: &mut Bencher) {
+        let threads = num_cpus::get();
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = unbounded::<i32>();
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads / 2 {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for i in 0..steps {
+                            s.send(i as i32).unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+            for _ in 0..threads / 2 {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for _ in 0..steps {
+                            r.recv().unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+}
+
+mod bounded_n {
+    use super::*;
+
+    #[bench]
+    fn spsc(b: &mut Bencher) {
+        let steps = TOTAL_STEPS;
+        let (s, r) = bounded::<i32>(steps);
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            scope.spawn(|_| {
+                while r1.recv().is_ok() {
+                    for i in 0..steps {
+                        s.send(i as i32).unwrap();
+                    }
+                    s2.send(()).unwrap();
+                }
+            });
+
+            b.iter(|| {
+                s1.send(()).unwrap();
+                for _ in 0..steps {
+                    r.recv().unwrap();
+                }
+                r2.recv().unwrap();
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn spmc(b: &mut Bencher) {
+        let threads = num_cpus::get() - 1;
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = bounded::<i32>(steps * threads);
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for _ in 0..steps {
+                            r.recv().unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for i in 0..steps * threads {
+                    s.send(i as i32).unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn mpsc(b: &mut Bencher) {
+        let threads = num_cpus::get() - 1;
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = bounded::<i32>(steps * threads);
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for i in 0..steps {
+                            s.send(i as i32).unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for _ in 0..steps * threads {
+                    r.recv().unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn par_inout(b: &mut Bencher) {
+        let threads = num_cpus::get();
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = bounded::<i32>(threads);
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for i in 0..steps {
+                            s.send(i as i32).unwrap();
+                            r.recv().unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn mpmc(b: &mut Bencher) {
+        let threads = num_cpus::get();
+        assert_eq!(threads % 2, 0);
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = bounded::<i32>(steps * threads);
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads / 2 {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for i in 0..steps {
+                            s.send(i as i32).unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+            for _ in 0..threads / 2 {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for _ in 0..steps {
+                            r.recv().unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+}
+
+mod bounded_1 {
+    use super::*;
+
+    #[bench]
+    fn create(b: &mut Bencher) {
+        b.iter(|| bounded::<i32>(1));
+    }
+
+    #[bench]
+    fn oneshot(b: &mut Bencher) {
+        b.iter(|| {
+            let (s, r) = bounded::<i32>(1);
+            s.send(0).unwrap();
+            r.recv().unwrap();
+        });
+    }
+
+    #[bench]
+    fn spsc(b: &mut Bencher) {
+        let steps = TOTAL_STEPS;
+        let (s, r) = bounded::<i32>(1);
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            scope.spawn(|_| {
+                while r1.recv().is_ok() {
+                    for i in 0..steps {
+                        s.send(i as i32).unwrap();
+                    }
+                    s2.send(()).unwrap();
+                }
+            });
+
+            b.iter(|| {
+                s1.send(()).unwrap();
+                for _ in 0..steps {
+                    r.recv().unwrap();
+                }
+                r2.recv().unwrap();
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn spmc(b: &mut Bencher) {
+        let threads = num_cpus::get() - 1;
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = bounded::<i32>(1);
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for _ in 0..steps {
+                            r.recv().unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for i in 0..steps * threads {
+                    s.send(i as i32).unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn mpsc(b: &mut Bencher) {
+        let threads = num_cpus::get() - 1;
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = bounded::<i32>(1);
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for i in 0..steps {
+                            s.send(i as i32).unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for _ in 0..steps * threads {
+                    r.recv().unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn mpmc(b: &mut Bencher) {
+        let threads = num_cpus::get();
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = bounded::<i32>(1);
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads / 2 {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for i in 0..steps {
+                            s.send(i as i32).unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+            for _ in 0..threads / 2 {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for _ in 0..steps {
+                            r.recv().unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+}
+
+mod bounded_0 {
+    use super::*;
+
+    #[bench]
+    fn create(b: &mut Bencher) {
+        b.iter(|| bounded::<i32>(0));
+    }
+
+    #[bench]
+    fn spsc(b: &mut Bencher) {
+        let steps = TOTAL_STEPS;
+        let (s, r) = bounded::<i32>(0);
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            scope.spawn(|_| {
+                while r1.recv().is_ok() {
+                    for i in 0..steps {
+                        s.send(i as i32).unwrap();
+                    }
+                    s2.send(()).unwrap();
+                }
+            });
+
+            b.iter(|| {
+                s1.send(()).unwrap();
+                for _ in 0..steps {
+                    r.recv().unwrap();
+                }
+                r2.recv().unwrap();
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn spmc(b: &mut Bencher) {
+        let threads = num_cpus::get() - 1;
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = bounded::<i32>(0);
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for _ in 0..steps {
+                            r.recv().unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for i in 0..steps * threads {
+                    s.send(i as i32).unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn mpsc(b: &mut Bencher) {
+        let threads = num_cpus::get() - 1;
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = bounded::<i32>(0);
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for i in 0..steps {
+                            s.send(i as i32).unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for _ in 0..steps * threads {
+                    r.recv().unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+
+    #[bench]
+    fn mpmc(b: &mut Bencher) {
+        let threads = num_cpus::get();
+        let steps = TOTAL_STEPS / threads;
+        let (s, r) = bounded::<i32>(0);
+
+        let (s1, r1) = bounded(0);
+        let (s2, r2) = bounded(0);
+        scope(|scope| {
+            for _ in 0..threads / 2 {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for i in 0..steps {
+                            s.send(i as i32).unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+            for _ in 0..threads / 2 {
+                scope.spawn(|_| {
+                    while r1.recv().is_ok() {
+                        for _ in 0..steps {
+                            r.recv().unwrap();
+                        }
+                        s2.send(()).unwrap();
+                    }
+                });
+            }
+
+            b.iter(|| {
+                for _ in 0..threads {
+                    s1.send(()).unwrap();
+                }
+                for _ in 0..threads {
+                    r2.recv().unwrap();
+                }
+            });
+            drop(s1);
+        })
+        .unwrap();
+    }
+}
-- 
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