diff --git a/src/client/tests.rs b/src/client/tests.rs
index 17a41943..a9deaac5 100644
--- a/src/client/tests.rs
+++ b/src/client/tests.rs
@@ -207,3 +207,66 @@ fn checkout_win_allows_connect_future_to_be_pooled() {
     }
 }
 
+#[cfg(feature = "nightly")]
+#[bench]
+fn bench_http1_get_0b(b: &mut test::Bencher) {
+    let _ = pretty_env_logger::try_init();
+
+    let mut rt = Runtime::new().expect("new rt");
+    let mut connector = MockConnector::new();
+
+
+    let client = Client::builder()
+        .build::<_, ::Body>(connector.clone());
+
+    client.pool.no_timer();
+
+    let uri = Uri::from_static("http://mock.local/a");
+
+    b.iter(move || {
+        let sock1 = connector.mock("http://mock.local");
+        let res1 = client
+            .get(uri.clone())
+            .and_then(|res| {
+                res.into_body().for_each(|_| Ok(()))
+            });
+        let srv1 = poll_fn(|| {
+            try_ready!(sock1.read(&mut [0u8; 512]));
+            try_ready!(sock1.write(b"HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n"));
+            Ok(Async::Ready(()))
+        }).map_err(|e: ::std::io::Error| panic!("srv1 poll_fn error: {}", e));
+        rt.block_on(res1.join(srv1)).expect("res1");
+    });
+}
+
+#[cfg(feature = "nightly")]
+#[bench]
+fn bench_http1_get_10b(b: &mut test::Bencher) {
+    let _ = pretty_env_logger::try_init();
+
+    let mut rt = Runtime::new().expect("new rt");
+    let mut connector = MockConnector::new();
+
+
+    let client = Client::builder()
+        .build::<_, ::Body>(connector.clone());
+
+    client.pool.no_timer();
+
+    let uri = Uri::from_static("http://mock.local/a");
+
+    b.iter(move || {
+        let sock1 = connector.mock("http://mock.local");
+        let res1 = client
+            .get(uri.clone())
+            .and_then(|res| {
+                res.into_body().for_each(|_| Ok(()))
+            });
+        let srv1 = poll_fn(|| {
+            try_ready!(sock1.read(&mut [0u8; 512]));
+            try_ready!(sock1.write(b"HTTP/1.1 200 OK\r\nContent-Length: 10\r\n\r\n0123456789"));
+            Ok(Async::Ready(()))
+        }).map_err(|e: ::std::io::Error| panic!("srv1 poll_fn error: {}", e));
+        rt.block_on(res1.join(srv1)).expect("res1");
+    });
+}
diff --git a/src/mock.rs b/src/mock.rs
index 492b8c76..6f7cb6d1 100644
--- a/src/mock.rs
+++ b/src/mock.rs
@@ -438,15 +438,19 @@ impl Drop for DuplexHandle {
 type BoxedConnectFut = Box<Future<Item=(Duplex, Connected), Error=io::Error> + Send>;
 
 #[cfg(feature = "runtime")]
+#[derive(Clone)]
 pub struct MockConnector {
-    mocks: Mutex<HashMap<String, Vec<BoxedConnectFut>>>,
+    mocks: Arc<Mutex<MockedConnections>>,
 }
 
+#[cfg(feature = "runtime")]
+struct MockedConnections(HashMap<String, Vec<BoxedConnectFut>>);
+
 #[cfg(feature = "runtime")]
 impl MockConnector {
     pub fn new() -> MockConnector {
         MockConnector {
-            mocks: Mutex::new(HashMap::new()),
+            mocks: Arc::new(Mutex::new(MockedConnections(HashMap::new()))),
         }
     }
 
@@ -474,7 +478,7 @@ impl MockConnector {
             trace!("MockConnector mocked fut ready");
             Ok((duplex, connected))
         }));
-        self.mocks.lock().unwrap().entry(key)
+        self.mocks.lock().unwrap().0.entry(key)
             .or_insert(Vec::new())
             .push(fut);
 
@@ -496,7 +500,7 @@ impl Connect for MockConnector {
             "".to_owned()
         });
         let mut mocks = self.mocks.lock().unwrap();
-        let mocks = mocks.get_mut(&key)
+        let mocks = mocks.0.get_mut(&key)
             .expect(&format!("unknown mocks uri: {}", key));
         assert!(!mocks.is_empty(), "no additional mocks for {}", key);
         mocks.remove(0)
@@ -505,11 +509,10 @@ impl Connect for MockConnector {
 
 
 #[cfg(feature = "runtime")]
-impl Drop for MockConnector {
+impl Drop for MockedConnections {
     fn drop(&mut self) {
         if !::std::thread::panicking() {
-            let mocks = self.mocks.lock().unwrap();
-            for (key, mocks) in mocks.iter() {
+            for (key, mocks) in self.0.iter() {
                 assert_eq!(
                     mocks.len(),
                     0,