Add some simple benchmarks.

README.md

@@ -50,6 +50,8 @@ fn main() {
 If you don't want to install Rust itself, you can run `$ ./dev` for a
 development CLI if you have [Docker] installed.
 
+Benchmarks require a Nightly toolchain. They are run by `cargo +nightly bench`.
+
 ### License
 [MIT](https://github.com/dguo/strsim-rs/blob/master/LICENSE)
 

benches/benches.rs

@@ -0,0 +1,66 @@
+//! Benchmarks for strsim.
+
+#![feature(test)]
+
+extern crate strsim;
+
+mod benches {
+    use super::*;
+
+    extern crate test;
+    use self::test::Bencher;
+
+    #[bench]
+    fn bench_hamming(bencher: &mut Bencher) {
+        let a = "ACAAGATGCCATTGTCCCCCGGCCTCCTGCTGCTGCTGCTCTCCGGGG";
+        let b = "CCTGGAGGGTGGCCCCACCGGCCGAGACAGCGAGCATATGCAGGAAGC";
+        bencher.iter(|| {
+            strsim::hamming(&a, &b).unwrap();
+        })
+    }
+
+    #[bench]
+    fn bench_jaro(bencher: &mut Bencher) {
+        let a = "Philosopher Friedrich Nietzsche";
+        let b = "Philosopher Jean-Paul Sartre";
+        bencher.iter(|| {
+            strsim::jaro(&a, &b);
+        })
+    }
+
+    #[bench]
+    fn bench_jaro_winkler(bencher: &mut Bencher) {
+        let a = "Philosopher Friedrich Nietzsche";
+        let b = "Philosopher Jean-Paul Sartre";
+        bencher.iter(|| {
+            strsim::jaro_winkler(&a, &b);
+        })
+    }
+
+    #[bench]
+    fn bench_levenshtein(bencher: &mut Bencher) {
+        let a = "Philosopher Friedrich Nietzsche";
+        let b = "Philosopher Jean-Paul Sartre";
+        bencher.iter(|| {
+            strsim::levenshtein(&a, &b);
+        })
+    }
+
+    #[bench]
+    fn bench_osa_distance(bencher: &mut Bencher) {
+        let a = "Philosopher Friedrich Nietzsche";
+        let b = "Philosopher Jean-Paul Sartre";
+        bencher.iter(|| {
+            strsim::osa_distance(&a, &b);
+        })
+    }
+
+    #[bench]
+    fn bench_damerau_levenshtein(bencher: &mut Bencher) {
+        let a = "Philosopher Friedrich Nietzsche";
+        let b = "Philosopher Jean-Paul Sartre";
+        bencher.iter(|| {
+            strsim::damerau_levenshtein(&a, &b);
+        })
+    }
+}