1 files changed, 49 insertions, 0 deletions
diff --git a/third_party/rust/podio/benches/benchmark.rs b/third_party/rust/podio/benches/benchmark.rs
new file mode 100644
index 0000000000..81614e75ec
--- /dev/null
+++ b/third_party/rust/podio/benches/benchmark.rs
@@ -0,0 +1,49 @@
+// bench.rs
+#![feature(test)]
+
+extern crate podio;
+extern crate test;
+
+use test::Bencher;
+use podio::{Endianness, BigEndian, LittleEndian, WritePodExt, ReadPodExt};
+
+// bench: find the `BENCH_SIZE` first terms of the fibonacci sequence
+const BENCH_SIZE: usize = 2000;
+
+#[bench]
+fn write_u64_be(b: &mut Bencher) {
+    write_u64::<BigEndian>(b);
+}
+
+#[bench]
+fn write_u64_le(b: &mut Bencher) {
+    write_u64::<LittleEndian>(b);
+}
+
+fn write_u64<T: Endianness>(b: &mut Bencher) {
+    b.iter(|| {
+        let mut writer : &mut[u8] = &mut [0; BENCH_SIZE * 8];
+        for _ in 0..BENCH_SIZE {
+            writer.write_u64::<T>(0x012345678u64).unwrap();
+        }
+    })
+}
+
+#[bench]
+fn read_u64_be(b: &mut Bencher) {
+    read_u64::<BigEndian>(b);
+}
+
+#[bench]
+fn read_u64_le(b: &mut Bencher) {
+    read_u64::<LittleEndian>(b);
+}
+
+fn read_u64<T: Endianness>(b: &mut Bencher) {
+    b.iter(|| {
+        let mut reader : &[u8] = &[0; BENCH_SIZE * 8];
+        for _ in 0..BENCH_SIZE {
+            reader.read_u64::<T>().unwrap();
+        }
+    })
+}