Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 51 insertions, 0 deletions

diff --git a/third_party/rust/ringbuf/src/benchmark.rs b/third_party/rust/ringbuf/src/benchmark.rs
new file mode 100644
index 0000000000..e145f580c1
--- /dev/null
+++ b/third_party/rust/ringbuf/src/benchmark.rs
@@ -0,0 +1,51 @@
+use super::*;
+
+use test::Bencher;
+
+const RB_SIZE: usize = 0x400;
+
+#[bench]
+fn single_item(b: &mut Bencher) {
+    let buf = RingBuffer::<u64>::new(RB_SIZE);
+    let (mut prod, mut cons) = buf.split();
+    prod.push_slice(&[1; RB_SIZE / 2]);
+    b.iter(|| {
+        prod.push(1).unwrap();
+        cons.pop().unwrap();
+    });
+}
+
+#[bench]
+fn slice_x10(b: &mut Bencher) {
+    let buf = RingBuffer::<u64>::new(RB_SIZE);
+    let (mut prod, mut cons) = buf.split();
+    prod.push_slice(&[1; RB_SIZE / 2]);
+    let mut data = [1; 10];
+    b.iter(|| {
+        prod.push_slice(&data);
+        cons.pop_slice(&mut data);
+    });
+}
+
+#[bench]
+fn slice_x100(b: &mut Bencher) {
+    let buf = RingBuffer::<u64>::new(RB_SIZE);
+    let (mut prod, mut cons) = buf.split();
+    prod.push_slice(&[1; RB_SIZE / 2]);
+    let mut data = [1; 100];
+    b.iter(|| {
+        prod.push_slice(&data);
+        cons.pop_slice(&mut data);
+    });
+}
+#[bench]
+fn slice_x1000(b: &mut Bencher) {
+    let buf = RingBuffer::<u64>::new(RB_SIZE);
+    let (mut prod, mut cons) = buf.split();
+    prod.push_slice(&[1; 16]);
+    let mut data = [1; 1000];
+    b.iter(|| {
+        prod.push_slice(&data);
+        cons.pop_slice(&mut data);
+    });
+}