1 files changed, 61 insertions, 0 deletions
diff --git a/third_party/rust/hex/benches/hex.rs b/third_party/rust/hex/benches/hex.rs
new file mode 100644
index 0000000000..6435032c64
--- /dev/null
+++ b/third_party/rust/hex/benches/hex.rs
@@ -0,0 +1,61 @@
+use criterion::{criterion_group, criterion_main, Criterion};
+use rustc_hex::{FromHex, ToHex};
+
+const DATA: &[u8] = include_bytes!("../src/lib.rs");
+
+fn bench_encode(c: &mut Criterion) {
+    c.bench_function("hex_encode", |b| b.iter(|| hex::encode(DATA)));
+
+    c.bench_function("rustc_hex_encode", |b| b.iter(|| DATA.to_hex::<String>()));
+
+    c.bench_function("faster_hex_encode", |b| {
+        b.iter(|| faster_hex::hex_string(DATA).unwrap())
+    });
+
+    c.bench_function("faster_hex_encode_fallback", |b| {
+        b.iter(|| {
+            let mut dst = vec![0; DATA.len() * 2];
+            faster_hex::hex_encode_fallback(DATA, &mut dst);
+            dst
+        })
+    });
+}
+
+fn bench_decode(c: &mut Criterion) {
+    c.bench_function("hex_decode", |b| {
+        let hex = hex::encode(DATA);
+        b.iter(|| hex::decode(&hex).unwrap())
+    });
+
+    c.bench_function("rustc_hex_decode", |b| {
+        let hex = DATA.to_hex::<String>();
+        b.iter(|| hex.from_hex::<Vec<u8>>().unwrap())
+    });
+
+    c.bench_function("faster_hex_decode", move |b| {
+        let hex = faster_hex::hex_string(DATA).unwrap();
+        let len = DATA.len();
+        let mut dst = vec![0; len];
+
+        b.iter(|| faster_hex::hex_decode(hex.as_bytes(), &mut dst).unwrap())
+    });
+
+    c.bench_function("faster_hex_decode_unchecked", |b| {
+        let hex = faster_hex::hex_string(DATA).unwrap();
+        let len = DATA.len();
+        let mut dst = vec![0; len];
+
+        b.iter(|| faster_hex::hex_decode_unchecked(hex.as_bytes(), &mut dst))
+    });
+
+    c.bench_function("faster_hex_decode_fallback", |b| {
+        let hex = faster_hex::hex_string(DATA).unwrap();
+        let len = DATA.len();
+        let mut dst = vec![0; len];
+
+        b.iter(|| faster_hex::hex_decode_fallback(hex.as_bytes(), &mut dst))
+    });
+}
+
+criterion_group!(benches, bench_encode, bench_decode);
+criterion_main!(benches);