1 files changed, 66 insertions, 0 deletions
diff --git a/third_party/rust/uuid/benches/format_str.rs b/third_party/rust/uuid/benches/format_str.rs
new file mode 100644
index 0000000000..fab89297bf
--- /dev/null
+++ b/third_party/rust/uuid/benches/format_str.rs
@@ -0,0 +1,66 @@
+#![feature(test)]
+extern crate test;
+
+use std::io::Write;
+use test::Bencher;
+use uuid::Uuid;
+
+#[bench]
+fn hyphenated(b: &mut Bencher) {
+    let uuid = Uuid::parse_str("F9168C5E-CEB2-4faa-B6BF-329BF39FA1E4").unwrap();
+    b.iter(|| {
+        let mut buffer = [0_u8; 36];
+        write!(&mut buffer as &mut [_], "{:x}", uuid.hyphenated()).unwrap();
+        buffer
+    });
+}
+
+#[bench]
+fn simple(b: &mut Bencher) {
+    let uuid = Uuid::parse_str("F9168C5E-CEB2-4faa-B6BF-329BF39FA1E4").unwrap();
+    b.iter(|| {
+        let mut buffer = [0_u8; 32];
+        write!(&mut buffer as &mut [_], "{:x}", uuid.simple()).unwrap();
+        buffer
+    })
+}
+
+#[bench]
+fn urn(b: &mut Bencher) {
+    let uuid = Uuid::parse_str("F9168C5E-CEB2-4faa-B6BF-329BF39FA1E4").unwrap();
+    b.iter(|| {
+        let mut buffer = [0_u8; 36 + 9];
+        write!(&mut buffer as &mut [_], "{:x}", uuid.urn()).unwrap();
+        buffer
+    })
+}
+
+#[bench]
+fn encode_hyphen(b: &mut Bencher) {
+    let uuid = Uuid::parse_str("F9168C5E-CEB2-4faa-B6BF-329BF39FA1E4").unwrap();
+    b.iter(|| {
+        let mut buffer = [0_u8; 36];
+        uuid.hyphenated().encode_lower(&mut buffer);
+        buffer
+    });
+}
+
+#[bench]
+fn encode_simple(b: &mut Bencher) {
+    let uuid = Uuid::parse_str("F9168C5E-CEB2-4faa-B6BF-329BF39FA1E4").unwrap();
+    b.iter(|| {
+        let mut buffer = [0_u8; 32];
+        uuid.simple().encode_lower(&mut buffer);
+        buffer
+    })
+}
+
+#[bench]
+fn encode_urn(b: &mut Bencher) {
+    let uuid = Uuid::parse_str("F9168C5E-CEB2-4faa-B6BF-329BF39FA1E4").unwrap();
+    b.iter(|| {
+        let mut buffer = [0_u8; 36 + 9];
+        uuid.urn().encode_lower(&mut buffer);
+        buffer
+    })
+}