---

yaml
---
r: 67194
b: refs/heads/master
c: d977623
h: refs/heads/master
v: v3

Author: graydon

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 3d5fb470fb22dea6473fc1a4d265ce9494dd4120
+refs/heads/master: d9776236c8991af312113741e74c20e2070f252f
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: 18e3db7392d2d0697b7e27d6d986139960144d85
 refs/heads/try: 7b78b52e602bb3ea8174f9b2006bff3315f03ef9

trunk/src/libstd/rand.rs

@@ -890,7 +890,7 @@ pub fn random<T: Rand>() -> T {
 }
 
 #[cfg(test)]
-mod tests {
+mod test {
     use option::{Option, Some};
     use super::*;
 
@@ -1109,3 +1109,37 @@ mod tests {
         }
     }
 }
+
+#[cfg(test)]
+mod bench {
+    use extra::test::BenchHarness;
+    use rand::*;
+    use sys::size_of;
+
+    #[bench]
+    fn rand_xorshift(bh: &mut BenchHarness) {
+        let mut rng = XorShiftRng::new();
+        do bh.iter {
+            rng.gen::<uint>();
+        }
+        bh.bytes = size_of::<uint>() as u64;
+    }
+
+    #[bench]
+    fn rand_isaac(bh: &mut BenchHarness) {
+        let mut rng = IsaacRng::new();
+        do bh.iter {
+            rng.gen::<uint>();
+        }
+        bh.bytes = size_of::<uint>() as u64;
+    }
+
+    #[bench]
+    fn rand_shuffle_100(bh: &mut BenchHarness) {
+        let mut rng = XorShiftRng::new();
+        let x : &mut[uint] = [1,..100];
+        do bh.iter {
+            rng.shuffle_mut(x);
+        }
+    }
+}