From 95639c5a274c2467096841a22f282d1fe0b516eb Mon Sep 17 00:00:00 2001
From: Diggory Hardy <git@dhardy.name>
Date: Sat, 25 Nov 2017 14:48:09 +0000
Subject: [PATCH] Add JitterRng benchmark, and enable CI benchmarking

Partly this is just to add an *optimised* test
---
 .travis.yml      |  1 +
 appveyor.yml     |  1 +
 benches/bench.rs | 11 ++++++++++-
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 1cb2e68cbb8..60211e5bbe0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,6 +12,7 @@ matrix:
     - rust: beta
     - rust: nightly
       script:
+        - cargo bench
         - cargo test
         - cargo test --features nightly
         - cargo test --manifest-path rand-derive/Cargo.toml
diff --git a/appveyor.yml b/appveyor.yml
index 39c6a180be8..815eb97467c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -32,6 +32,7 @@ install:
 build: false
 
 test_script:
+  - cargo bench
   - cargo test
   - cargo test --features nightly
   - cargo test --manifest-path rand-derive/Cargo.toml
diff --git a/benches/bench.rs b/benches/bench.rs
index 5fa92bdbea0..043c12f9de6 100644
--- a/benches/bench.rs
+++ b/benches/bench.rs
@@ -9,9 +9,18 @@ mod distributions;
 
 use std::mem::size_of;
 use test::{black_box, Bencher};
-use rand::{XorShiftRng, StdRng, IsaacRng, Isaac64Rng, Rng};
+use rand::{XorShiftRng, StdRng, IsaacRng, Isaac64Rng, JitterRng, Rng};
 use rand::{OsRng, sample, weak_rng};
 
+#[bench]
+fn rand_jitter(b: &mut Bencher) {
+    let mut rng = JitterRng::new().unwrap();
+    b.iter(|| {
+        black_box(rng.next_u64());
+    });
+    b.bytes = size_of::<u64>() as u64;
+}
+
 #[bench]
 fn rand_xorshift(b: &mut Bencher) {
     let mut rng: XorShiftRng = OsRng::new().unwrap().gen();