From 1b6a04ca5504955c571d1c97504fb45ea0befee4 Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Mon, 8 Jan 2024 01:21:28 +0400
Subject: Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>
---
 vendor/crossbeam-epoch/benches/defer.rs | 69 +++++++++++++++++++++++++++++++++
 vendor/crossbeam-epoch/benches/flush.rs | 52 +++++++++++++++++++++++++
 vendor/crossbeam-epoch/benches/pin.rs   | 31 +++++++++++++++
 3 files changed, 152 insertions(+)
 create mode 100644 vendor/crossbeam-epoch/benches/defer.rs
 create mode 100644 vendor/crossbeam-epoch/benches/flush.rs
 create mode 100644 vendor/crossbeam-epoch/benches/pin.rs

(limited to 'vendor/crossbeam-epoch/benches')

diff --git a/vendor/crossbeam-epoch/benches/defer.rs b/vendor/crossbeam-epoch/benches/defer.rs
new file mode 100644
index 0000000..246f907
--- /dev/null
+++ b/vendor/crossbeam-epoch/benches/defer.rs
@@ -0,0 +1,69 @@
+#![feature(test)]
+
+extern crate test;
+
+use crossbeam_epoch::{self as epoch, Owned};
+use crossbeam_utils::thread::scope;
+use test::Bencher;
+
+#[bench]
+fn single_alloc_defer_free(b: &mut Bencher) {
+    b.iter(|| {
+        let guard = &epoch::pin();
+        let p = Owned::new(1).into_shared(guard);
+        unsafe {
+            guard.defer_destroy(p);
+        }
+    });
+}
+
+#[bench]
+fn single_defer(b: &mut Bencher) {
+    b.iter(|| {
+        let guard = &epoch::pin();
+        guard.defer(move || ());
+    });
+}
+
+#[bench]
+fn multi_alloc_defer_free(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();
+                        let p = Owned::new(1).into_shared(guard);
+                        unsafe {
+                            guard.defer_destroy(p);
+                        }
+                    }
+                });
+            }
+        })
+        .unwrap();
+    });
+}
+
+#[bench]
+fn multi_defer(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.defer(move || ());
+                    }
+                });
+            }
+        })
+        .unwrap();
+    });
+}
diff --git a/vendor/crossbeam-epoch/benches/flush.rs b/vendor/crossbeam-epoch/benches/flush.rs
new file mode 100644
index 0000000..99aab19
--- /dev/null
+++ b/vendor/crossbeam-epoch/benches/flush.rs
@@ -0,0 +1,52 @@
+#![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();
+    });
+}
diff --git a/vendor/crossbeam-epoch/benches/pin.rs b/vendor/crossbeam-epoch/benches/pin.rs
new file mode 100644
index 0000000..8bf87e9
--- /dev/null
+++ b/vendor/crossbeam-epoch/benches/pin.rs
@@ -0,0 +1,31 @@
+#![feature(test)]
+
+extern crate test;
+
+use crossbeam_epoch as epoch;
+use crossbeam_utils::thread::scope;
+use test::Bencher;
+
+#[bench]
+fn single_pin(b: &mut Bencher) {
+    b.iter(epoch::pin);
+}
+
+#[bench]
+fn multi_pin(b: &mut Bencher) {
+    const THREADS: usize = 16;
+    const STEPS: usize = 100_000;
+
+    b.iter(|| {
+        scope(|s| {
+            for _ in 0..THREADS {
+                s.spawn(|_| {
+                    for _ in 0..STEPS {
+                        epoch::pin();
+                    }
+                });
+            }
+        })
+        .unwrap();
+    });
+}
-- 
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