1 files changed, 48 insertions, 0 deletions
diff --git a/third_party/rust/uuid/benches/serde_support.rs b/third_party/rust/uuid/benches/serde_support.rs
new file mode 100644
index 0000000000..a7ce64f824
--- /dev/null
+++ b/third_party/rust/uuid/benches/serde_support.rs
@@ -0,0 +1,48 @@
+#![cfg(feature = "serde")]
+#![feature(test)]
+
+use bincode;
+use serde_json;
+extern crate test;
+
+use test::Bencher;
+use uuid::Uuid;
+
+#[bench]
+fn bench_json_encode(b: &mut Bencher) {
+    let uuid = Uuid::parse_str("F9168C5E-CEB2-4faa-B6BF-329BF39FA1E4").unwrap();
+    let mut buffer = [0_u8; 38];
+    b.iter(|| {
+        serde_json::to_writer(&mut buffer as &mut [u8], &uuid).unwrap();
+        test::black_box(buffer);
+    });
+    b.bytes = buffer.len() as u64;
+}
+
+#[bench]
+fn bench_json_decode(b: &mut Bencher) {
+    let s = "\"F9168C5E-CEB2-4faa-B6BF-329BF39FA1E4\"";
+    b.iter(|| serde_json::from_str::<Uuid>(s).unwrap());
+    b.bytes = s.len() as u64;
+}
+
+#[bench]
+fn bench_bincode_encode(b: &mut Bencher) {
+    let uuid = Uuid::parse_str("F9168C5E-CEB2-4faa-B6BF-329BF39FA1E4").unwrap();
+    let mut buffer = [0_u8; 24];
+    b.iter(|| {
+        bincode::serialize_into(&mut buffer as &mut [u8], &uuid).unwrap();
+        test::black_box(buffer);
+    });
+    b.bytes = buffer.len() as u64;
+}
+
+#[bench]
+fn bench_bincode_decode(b: &mut Bencher) {
+    let bytes = [
+        16, 0, 0, 0, 0, 0, 0, 0, 249, 22, 140, 94, 206, 178, 79, 170, 182, 191,
+        50, 155, 243, 159, 161, 228,
+    ];
+    b.iter(|| bincode::deserialize::<Uuid>(&bytes).unwrap());
+    b.bytes = bytes.len() as u64;
+}