diff --git a/src/body.rs b/src/body.rs
index 5ce0d129..3838d8d0 100644
--- a/src/body.rs
+++ b/src/body.rs
@@ -1,6 +1,5 @@
 use bytes::{Bytes, BytesMut};
 use futures::Stream;
-use std::rc::Rc;
 use std::sync::Arc;
 use std::{fmt, mem};
 
@@ -35,10 +34,8 @@ pub enum Binary {
     /// Static slice
     Slice(&'static [u8]),
     /// Shared string body
-    SharedString(Rc<String>),
-    /// Shared string body
     #[doc(hidden)]
-    ArcSharedString(Arc<String>),
+    SharedString(Arc<String>),
     /// Shared vec body
     SharedVec(Arc<Vec<u8>>),
 }
@@ -140,7 +137,6 @@ impl Binary {
             Binary::Bytes(ref bytes) => bytes.len(),
             Binary::Slice(slice) => slice.len(),
             Binary::SharedString(ref s) => s.len(),
-            Binary::ArcSharedString(ref s) => s.len(),
             Binary::SharedVec(ref s) => s.len(),
         }
     }
@@ -162,7 +158,6 @@ impl Clone for Binary {
             Binary::Bytes(ref bytes) => Binary::Bytes(bytes.clone()),
             Binary::Slice(slice) => Binary::Bytes(Bytes::from(slice)),
             Binary::SharedString(ref s) => Binary::SharedString(s.clone()),
-            Binary::ArcSharedString(ref s) => Binary::ArcSharedString(s.clone()),
             Binary::SharedVec(ref s) => Binary::SharedVec(s.clone()),
         }
     }
@@ -174,7 +169,6 @@ impl Into<Bytes> for Binary {
             Binary::Bytes(bytes) => bytes,
             Binary::Slice(slice) => Bytes::from(slice),
             Binary::SharedString(s) => Bytes::from(s.as_str()),
-            Binary::ArcSharedString(s) => Bytes::from(s.as_str()),
             Binary::SharedVec(s) => Bytes::from(AsRef::<[u8]>::as_ref(s.as_ref())),
         }
     }
@@ -222,27 +216,15 @@ impl From<BytesMut> for Binary {
     }
 }
 
-impl From<Rc<String>> for Binary {
-    fn from(body: Rc<String>) -> Binary {
-        Binary::SharedString(body)
-    }
-}
-
-impl<'a> From<&'a Rc<String>> for Binary {
-    fn from(body: &'a Rc<String>) -> Binary {
-        Binary::SharedString(Rc::clone(body))
-    }
-}
-
 impl From<Arc<String>> for Binary {
     fn from(body: Arc<String>) -> Binary {
-        Binary::ArcSharedString(body)
+        Binary::SharedString(body)
     }
 }
 
 impl<'a> From<&'a Arc<String>> for Binary {
     fn from(body: &'a Arc<String>) -> Binary {
-        Binary::ArcSharedString(Arc::clone(body))
+        Binary::SharedString(Arc::clone(body))
     }
 }
 
@@ -265,7 +247,6 @@ impl AsRef<[u8]> for Binary {
             Binary::Bytes(ref bytes) => bytes.as_ref(),
             Binary::Slice(slice) => slice,
             Binary::SharedString(ref s) => s.as_bytes(),
-            Binary::ArcSharedString(ref s) => s.as_bytes(),
             Binary::SharedVec(ref s) => s.as_ref().as_ref(),
         }
     }
@@ -324,22 +305,6 @@ mod tests {
         assert_eq!(Binary::from(Bytes::from("test")).as_ref(), b"test");
     }
 
-    #[test]
-    fn test_ref_string() {
-        let b = Rc::new("test".to_owned());
-        assert_eq!(Binary::from(&b).len(), 4);
-        assert_eq!(Binary::from(&b).as_ref(), b"test");
-    }
-
-    #[test]
-    fn test_rc_string() {
-        let b = Rc::new("test".to_owned());
-        assert_eq!(Binary::from(b.clone()).len(), 4);
-        assert_eq!(Binary::from(b.clone()).as_ref(), b"test");
-        assert_eq!(Binary::from(&b).len(), 4);
-        assert_eq!(Binary::from(&b).as_ref(), b"test");
-    }
-
     #[test]
     fn test_arc_string() {
         let b = Arc::new("test".to_owned());
diff --git a/src/client/body.rs b/src/client/body.rs
new file mode 100644
index 00000000..c79d7ad5
--- /dev/null
+++ b/src/client/body.rs
@@ -0,0 +1,94 @@
+use std::fmt;
+
+use bytes::Bytes;
+use futures::Stream;
+
+use body::Binary;
+use context::ActorHttpContext;
+use error::Error;
+
+/// Type represent streaming body
+pub type ClientBodyStream = Box<Stream<Item = Bytes, Error = Error> + Send>;
+
+/// Represents various types of http message body.
+pub enum ClientBody {
+    /// Empty response. `Content-Length` header is set to `0`
+    Empty,
+    /// Specific response body.
+    Binary(Binary),
+    /// Unspecified streaming response. Developer is responsible for setting
+    /// right `Content-Length` or `Transfer-Encoding` headers.
+    Streaming(ClientBodyStream),
+    /// Special body type for actor response.
+    Actor(Box<ActorHttpContext + Send>),
+}
+
+impl ClientBody {
+    /// Does this body streaming.
+    #[inline]
+    pub fn is_streaming(&self) -> bool {
+        match *self {
+            ClientBody::Streaming(_) | ClientBody::Actor(_) => true,
+            _ => false,
+        }
+    }
+
+    /// Is this binary body.
+    #[inline]
+    pub fn is_binary(&self) -> bool {
+        match *self {
+            ClientBody::Binary(_) => true,
+            _ => false,
+        }
+    }
+
+    /// Is this binary empy.
+    #[inline]
+    pub fn is_empty(&self) -> bool {
+        match *self {
+            ClientBody::Empty => true,
+            _ => false,
+        }
+    }
+
+    /// Create body from slice (copy)
+    pub fn from_slice(s: &[u8]) -> ClientBody {
+        ClientBody::Binary(Binary::Bytes(Bytes::from(s)))
+    }
+}
+
+impl PartialEq for ClientBody {
+    fn eq(&self, other: &ClientBody) -> bool {
+        match *self {
+            ClientBody::Empty => match *other {
+                ClientBody::Empty => true,
+                _ => false,
+            },
+            ClientBody::Binary(ref b) => match *other {
+                ClientBody::Binary(ref b2) => b == b2,
+                _ => false,
+            },
+            ClientBody::Streaming(_) | ClientBody::Actor(_) => false,
+        }
+    }
+}
+
+impl fmt::Debug for ClientBody {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match *self {
+            ClientBody::Empty => write!(f, "ClientBody::Empty"),
+            ClientBody::Binary(ref b) => write!(f, "ClientBody::Binary({:?})", b),
+            ClientBody::Streaming(_) => write!(f, "ClientBody::Streaming(_)"),
+            ClientBody::Actor(_) => write!(f, "ClientBody::Actor(_)"),
+        }
+    }
+}
+
+impl<T> From<T> for ClientBody
+where
+    T: Into<Binary>,
+{
+    fn from(b: T) -> ClientBody {
+        ClientBody::Binary(b.into())
+    }
+}
diff --git a/src/client/mod.rs b/src/client/mod.rs
index 96033a21..8aded011 100644
--- a/src/client/mod.rs
+++ b/src/client/mod.rs
@@ -1,11 +1,12 @@
 //! Http client api
 //!
-//! ```rust,ignore
+//! ```rust
 //! # extern crate actix;
 //! # extern crate actix_web;
 //! # extern crate futures;
 //! # extern crate tokio;
 //! # use futures::Future;
+//! # use std::process;
 //! use actix_web::client;
 //!
 //! fn main() {
@@ -17,11 +18,14 @@
 //!             .map_err(|_| ())
 //!             .and_then(|response| {                // <- server http response
 //!                 println!("Response: {:?}", response);
+//! #               process::exit(0);
 //!                 Ok(())
 //!             })
 //!     });
 //! }
 //! ```
+
+mod body;
 mod connector;
 mod parser;
 mod pipeline;
@@ -29,6 +33,7 @@ mod request;
 mod response;
 mod writer;
 
+pub use self::body::{ClientBody, ClientBodyStream};
 pub use self::connector::{
     ClientConnector, ClientConnectorError, ClientConnectorStats, Connect, Connection,
     Pause, Resume,
@@ -56,11 +61,15 @@ impl ResponseError for SendRequestError {
 
 /// Create request builder for `GET` requests
 ///
-/// ```rust,ignore
+///
+/// ```rust
 /// # extern crate actix;
 /// # extern crate actix_web;
 /// # extern crate futures;
-/// # use futures::{future, Future};
+/// # extern crate tokio;
+/// # extern crate env_logger;
+/// # use futures::Future;
+/// # use std::process;
 /// use actix_web::client;
 ///
 /// fn main() {
@@ -72,6 +81,7 @@ impl ResponseError for SendRequestError {
 ///             .map_err(|_| ())
 ///             .and_then(|response| {                // <- server http response
 ///                 println!("Response: {:?}", response);
+/// #               process::exit(0);
 ///                 Ok(())
 ///             }));
 /// }
diff --git a/src/client/pipeline.rs b/src/client/pipeline.rs
index 5543aa4c..a2105ecb 100644
--- a/src/client/pipeline.rs
+++ b/src/client/pipeline.rs
@@ -1,5 +1,5 @@
 use bytes::{Bytes, BytesMut};
-use futures::unsync::oneshot;
+use futures::sync::oneshot;
 use futures::{Async, Future, Poll};
 use http::header::CONTENT_ENCODING;
 use std::time::{Duration, Instant};
@@ -8,18 +8,16 @@ use tokio_timer::Delay;
 
 use actix::prelude::*;
 
-use super::HttpClientWriter;
-use super::{ClientConnector, ClientConnectorError, Connect, Connection};
-use super::{ClientRequest, ClientResponse};
-use super::{HttpResponseParser, HttpResponseParserError};
-use body::{Body, BodyStream};
-use context::{ActorHttpContext, Frame};
+use super::{
+    ClientBody, ClientBodyStream, ClientConnector, ClientConnectorError, ClientRequest,
+    ClientResponse, Connect, Connection, HttpClientWriter, HttpResponseParser,
+    HttpResponseParserError,
+};
 use error::Error;
 use error::PayloadError;
 use header::ContentEncoding;
 use httpmessage::HttpMessage;
 use server::encoding::PayloadStream;
-use server::shared::SharedBytes;
 use server::WriterState;
 
 /// A set of errors that can occur during request sending and response reading
@@ -68,7 +66,7 @@ enum State {
 pub struct SendRequest {
     req: ClientRequest,
     state: State,
-    conn: Addr<ClientConnector>,
+    conn: Option<Addr<ClientConnector>>,
     conn_timeout: Duration,
     wait_timeout: Duration,
     timeout: Option<Delay>,
@@ -76,7 +74,14 @@ pub struct SendRequest {
 
 impl SendRequest {
     pub(crate) fn new(req: ClientRequest) -> SendRequest {
-        SendRequest::with_connector(req, ClientConnector::from_registry())
+        SendRequest {
+            req,
+            conn: None,
+            state: State::New,
+            timeout: None,
+            wait_timeout: Duration::from_secs(5),
+            conn_timeout: Duration::from_secs(1),
+        }
     }
 
     pub(crate) fn with_connector(
@@ -84,7 +89,7 @@ impl SendRequest {
     ) -> SendRequest {
         SendRequest {
             req,
-            conn,
+            conn: Some(conn),
             state: State::New,
             timeout: None,
             wait_timeout: Duration::from_secs(5),
@@ -96,7 +101,7 @@ impl SendRequest {
         SendRequest {
             req,
             state: State::Connection(conn),
-            conn: ClientConnector::from_registry(),
+            conn: None,
             timeout: None,
             wait_timeout: Duration::from_secs(5),
             conn_timeout: Duration::from_secs(1),
@@ -142,7 +147,12 @@ impl Future for SendRequest {
 
             match state {
                 State::New => {
-                    self.state = State::Connect(self.conn.send(Connect {
+                    let conn = if let Some(conn) = self.conn.take() {
+                        conn
+                    } else {
+                        ClientConnector::from_registry()
+                    };
+                    self.state = State::Connect(conn.send(Connect {
                         uri: self.req.uri().clone(),
                         wait_timeout: self.wait_timeout,
                         conn_timeout: self.conn_timeout,
@@ -160,16 +170,16 @@ impl Future for SendRequest {
                     Err(_) => {
                         return Err(SendRequestError::Connector(
                             ClientConnectorError::Disconnected,
-                        ))
+                        ));
                     }
                 },
                 State::Connection(conn) => {
-                    let mut writer = HttpClientWriter::new(SharedBytes::default());
+                    let mut writer = HttpClientWriter::new();
                     writer.start(&mut self.req)?;
 
-                    let body = match self.req.replace_body(Body::Empty) {
-                        Body::Streaming(stream) => IoBody::Payload(stream),
-                        Body::Actor(ctx) => IoBody::Actor(ctx),
+                    let body = match self.req.replace_body(ClientBody::Empty) {
+                        ClientBody::Streaming(stream) => IoBody::Payload(stream),
+                        ClientBody::Actor(_) => panic!("Client actor is not supported"),
                         _ => IoBody::Done,
                     };
 
@@ -208,7 +218,9 @@ impl Future for SendRequest {
                             self.state = State::Send(pl);
                             return Ok(Async::NotReady);
                         }
-                        Err(err) => return Err(SendRequestError::ParseError(err)),
+                        Err(err) => {
+                            return Err(SendRequestError::ParseError(err));
+                        }
                     }
                 }
                 State::None => unreachable!(),
@@ -233,8 +245,7 @@ pub(crate) struct Pipeline {
 }
 
 enum IoBody {
-    Payload(BodyStream),
-    Actor(Box<ActorHttpContext>),
+    Payload(ClientBodyStream),
     Done,
 }
 
@@ -380,10 +391,7 @@ impl Pipeline {
             match self.timeout.as_mut().unwrap().poll() {
                 Ok(Async::Ready(())) => return Err(SendRequestError::Timeout),
                 Ok(Async::NotReady) => (),
-                Err(e) => {
-                    println!("err: {:?}", e);
-                    return Err(SendRequestError::Timeout);
-                }
+                Err(_) => return Err(SendRequestError::Timeout),
             }
         }
         Ok(())
@@ -397,66 +405,24 @@ impl Pipeline {
 
         let mut done = false;
         if self.drain.is_none() && self.write_state != RunningState::Paused {
-            'outter: loop {
+            loop {
                 let result = match mem::replace(&mut self.body, IoBody::Done) {
-                    IoBody::Payload(mut body) => match body.poll()? {
+                    IoBody::Payload(mut stream) => match stream.poll()? {
                         Async::Ready(None) => {
                             self.writer.write_eof()?;
                             self.body_completed = true;
                             break;
                         }
                         Async::Ready(Some(chunk)) => {
-                            self.body = IoBody::Payload(body);
-                            self.writer.write(chunk.into())?
+                            self.body = IoBody::Payload(stream);
+                            self.writer.write(chunk.as_ref())?
                         }
                         Async::NotReady => {
                             done = true;
-                            self.body = IoBody::Payload(body);
+                            self.body = IoBody::Payload(stream);
                             break;
                         }
                     },
-                    IoBody::Actor(mut ctx) => {
-                        if self.disconnected {
-                            ctx.disconnected();
-                        }
-                        match ctx.poll()? {
-                            Async::Ready(Some(vec)) => {
-                                if vec.is_empty() {
-                                    self.body = IoBody::Actor(ctx);
-                                    break;
-                                }
-                                let mut res = None;
-                                for frame in vec {
-                                    match frame {
-                                        Frame::Chunk(None) => {
-                                            self.body_completed = true;
-                                            self.writer.write_eof()?;
-                                            break 'outter;
-                                        }
-                                        Frame::Chunk(Some(chunk)) => {
-                                            res = Some(self.writer.write(chunk)?)
-                                        }
-                                        Frame::Drain(fut) => self.drain = Some(fut),
-                                    }
-                                }
-                                self.body = IoBody::Actor(ctx);
-                                if self.drain.is_some() {
-                                    self.write_state.resume();
-                                    break;
-                                }
-                                res.unwrap()
-                            }
-                            Async::Ready(None) => {
-                                done = true;
-                                break;
-                            }
-                            Async::NotReady => {
-                                done = true;
-                                self.body = IoBody::Actor(ctx);
-                                break;
-                            }
-                        }
-                    }
                     IoBody::Done => {
                         self.body_completed = true;
                         done = true;
diff --git a/src/client/request.rs b/src/client/request.rs
index d4baa254..97b97e01 100644
--- a/src/client/request.rs
+++ b/src/client/request.rs
@@ -12,9 +12,9 @@ use serde::Serialize;
 use serde_json;
 use url::Url;
 
+use super::body::ClientBody;
 use super::connector::{ClientConnector, Connection};
 use super::pipeline::SendRequest;
-use body::Body;
 use error::Error;
 use header::{ContentEncoding, Header, IntoHeaderValue};
 use http::header::{self, HeaderName, HeaderValue};
@@ -24,11 +24,13 @@ use httprequest::HttpRequest;
 
 /// An HTTP Client Request
 ///
-/// ```rust,ignore
+/// ```rust
 /// # extern crate actix;
 /// # extern crate actix_web;
 /// # extern crate futures;
+/// # extern crate tokio;
 /// # use futures::Future;
+/// # use std::process;
 /// use actix_web::client::ClientRequest;
 ///
 /// fn main() {
@@ -40,6 +42,7 @@ use httprequest::HttpRequest;
 ///             .map_err(|_| ())
 ///             .and_then(|response| {                     // <- server http response
 ///                 println!("Response: {:?}", response);
+/// #               process::exit(0);
 ///                 Ok(())
 ///             })
 ///     );
@@ -50,7 +53,7 @@ pub struct ClientRequest {
     method: Method,
     version: Version,
     headers: HeaderMap,
-    body: Body,
+    body: ClientBody,
     chunked: bool,
     upgrade: bool,
     timeout: Option<Duration>,
@@ -73,7 +76,7 @@ impl Default for ClientRequest {
             method: Method::default(),
             version: Version::HTTP_11,
             headers: HeaderMap::with_capacity(16),
-            body: Body::Empty,
+            body: ClientBody::Empty,
             chunked: false,
             upgrade: false,
             timeout: None,
@@ -217,17 +220,17 @@ impl ClientRequest {
 
     /// Get body of this response
     #[inline]
-    pub fn body(&self) -> &Body {
+    pub fn body(&self) -> &ClientBody {
         &self.body
     }
 
     /// Set a body
-    pub fn set_body<B: Into<Body>>(&mut self, body: B) {
+    pub fn set_body<B: Into<ClientBody>>(&mut self, body: B) {
         self.body = body.into();
     }
 
     /// Extract body, replace it with `Empty`
-    pub(crate) fn replace_body(&mut self, body: Body) -> Body {
+    pub(crate) fn replace_body(&mut self, body: ClientBody) -> ClientBody {
         mem::replace(&mut self.body, body)
     }
 
@@ -578,7 +581,9 @@ impl ClientRequestBuilder {
     /// Set a body and generate `ClientRequest`.
     ///
     /// `ClientRequestBuilder` can not be used after this call.
-    pub fn body<B: Into<Body>>(&mut self, body: B) -> Result<ClientRequest, Error> {
+    pub fn body<B: Into<ClientBody>>(
+        &mut self, body: B,
+    ) -> Result<ClientRequest, Error> {
         if let Some(e) = self.err.take() {
             return Err(e.into());
         }
@@ -644,17 +649,19 @@ impl ClientRequestBuilder {
     /// `ClientRequestBuilder` can not be used after this call.
     pub fn streaming<S, E>(&mut self, stream: S) -> Result<ClientRequest, Error>
     where
-        S: Stream<Item = Bytes, Error = E> + 'static,
+        S: Stream<Item = Bytes, Error = E> + Send + 'static,
         E: Into<Error>,
     {
-        self.body(Body::Streaming(Box::new(stream.map_err(|e| e.into()))))
+        self.body(ClientBody::Streaming(Box::new(
+            stream.map_err(|e| e.into()),
+        )))
     }
 
     /// Set an empty body and generate `ClientRequest`
     ///
     /// `ClientRequestBuilder` can not be used after this call.
     pub fn finish(&mut self) -> Result<ClientRequest, Error> {
-        self.body(Body::Empty)
+        self.body(ClientBody::Empty)
     }
 
     /// This method construct new `ClientRequestBuilder`
diff --git a/src/client/writer.rs b/src/client/writer.rs
index addc0324..dfbce1f3 100644
--- a/src/client/writer.rs
+++ b/src/client/writer.rs
@@ -19,13 +19,12 @@ use http::{HttpTryFrom, Version};
 use time::{self, Duration};
 use tokio_io::AsyncWrite;
 
-use body::{Binary, Body};
+use body::Binary;
 use header::ContentEncoding;
 use server::encoding::{ContentEncoder, TransferEncoding};
-use server::shared::SharedBytes;
 use server::WriterState;
 
-use client::ClientRequest;
+use client::{ClientBody, ClientRequest};
 
 const AVERAGE_HEADER_SIZE: usize = 30;
 
@@ -42,20 +41,20 @@ pub(crate) struct HttpClientWriter {
     flags: Flags,
     written: u64,
     headers_size: u32,
-    buffer: SharedBytes,
+    buffer: Box<BytesMut>,
     buffer_capacity: usize,
     encoder: ContentEncoder,
 }
 
 impl HttpClientWriter {
-    pub fn new(buffer: SharedBytes) -> HttpClientWriter {
-        let encoder = ContentEncoder::Identity(TransferEncoding::eof(buffer.clone()));
+    pub fn new() -> HttpClientWriter {
+        let encoder = ContentEncoder::Identity(TransferEncoding::eof());
         HttpClientWriter {
             flags: Flags::empty(),
             written: 0,
             headers_size: 0,
             buffer_capacity: 0,
-            buffer,
+            buffer: Box::new(BytesMut::new()),
             encoder,
         }
     }
@@ -98,12 +97,23 @@ impl HttpClientWriter {
     }
 }
 
+pub struct Writer<'a>(pub &'a mut BytesMut);
+
+impl<'a> io::Write for Writer<'a> {
+    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
+        self.0.extend_from_slice(buf);
+        Ok(buf.len())
+    }
+    fn flush(&mut self) -> io::Result<()> {
+        Ok(())
+    }
+}
+
 impl HttpClientWriter {
     pub fn start(&mut self, msg: &mut ClientRequest) -> io::Result<()> {
         // prepare task
         self.flags.insert(Flags::STARTED);
-        self.encoder = content_encoder(self.buffer.clone(), msg);
-
+        self.encoder = content_encoder(self.buffer.as_mut(), msg);
         if msg.upgrade() {
             self.flags.insert(Flags::UPGRADE);
         }
@@ -112,7 +122,7 @@ impl HttpClientWriter {
         {
             // status line
             writeln!(
-                self.buffer,
+                Writer(&mut self.buffer),
                 "{} {} {:?}\r",
                 msg.method(),
                 msg.uri()
@@ -120,40 +130,41 @@ impl HttpClientWriter {
                     .map(|u| u.as_str())
                     .unwrap_or("/"),
                 msg.version()
-            )?;
+            ).map_err(|e| io::Error::new(io::ErrorKind::Other, e))?;
 
             // write headers
-            let mut buffer = self.buffer.get_mut();
-            if let Body::Binary(ref bytes) = *msg.body() {
-                buffer.reserve(msg.headers().len() * AVERAGE_HEADER_SIZE + bytes.len());
+            if let ClientBody::Binary(ref bytes) = *msg.body() {
+                self.buffer
+                    .reserve(msg.headers().len() * AVERAGE_HEADER_SIZE + bytes.len());
             } else {
-                buffer.reserve(msg.headers().len() * AVERAGE_HEADER_SIZE);
+                self.buffer
+                    .reserve(msg.headers().len() * AVERAGE_HEADER_SIZE);
             }
 
             for (key, value) in msg.headers() {
                 let v = value.as_ref();
                 let k = key.as_str().as_bytes();
-                buffer.reserve(k.len() + v.len() + 4);
-                buffer.put_slice(k);
-                buffer.put_slice(b": ");
-                buffer.put_slice(v);
-                buffer.put_slice(b"\r\n");
+                self.buffer.reserve(k.len() + v.len() + 4);
+                self.buffer.put_slice(k);
+                self.buffer.put_slice(b": ");
+                self.buffer.put_slice(v);
+                self.buffer.put_slice(b"\r\n");
             }
 
             // set date header
             if !msg.headers().contains_key(DATE) {
-                buffer.extend_from_slice(b"date: ");
-                set_date(&mut buffer);
-                buffer.extend_from_slice(b"\r\n\r\n");
+                self.buffer.extend_from_slice(b"date: ");
+                set_date(&mut self.buffer);
+                self.buffer.extend_from_slice(b"\r\n\r\n");
             } else {
-                buffer.extend_from_slice(b"\r\n");
+                self.buffer.extend_from_slice(b"\r\n");
             }
-            self.headers_size = buffer.len() as u32;
+            self.headers_size = self.buffer.len() as u32;
 
             if msg.body().is_binary() {
-                if let Body::Binary(bytes) = msg.replace_body(Body::Empty) {
+                if let ClientBody::Binary(bytes) = msg.replace_body(ClientBody::Empty) {
                     self.written += bytes.len() as u64;
-                    self.encoder.write(bytes)?;
+                    self.encoder.write(bytes.as_ref())?;
                 }
             } else {
                 self.buffer_capacity = msg.write_buffer_capacity();
@@ -162,7 +173,7 @@ impl HttpClientWriter {
         Ok(())
     }
 
-    pub fn write(&mut self, payload: Binary) -> io::Result<WriterState> {
+    pub fn write(&mut self, payload: &[u8]) -> io::Result<WriterState> {
         self.written += payload.len() as u64;
         if !self.flags.contains(Flags::DISCONNECTED) {
             if self.flags.contains(Flags::UPGRADE) {
@@ -210,20 +221,21 @@ impl HttpClientWriter {
     }
 }
 
-fn content_encoder(buf: SharedBytes, req: &mut ClientRequest) -> ContentEncoder {
+fn content_encoder(buf: &mut BytesMut, req: &mut ClientRequest) -> ContentEncoder {
     let version = req.version();
-    let mut body = req.replace_body(Body::Empty);
+    let mut body = req.replace_body(ClientBody::Empty);
     let mut encoding = req.content_encoding();
 
-    let transfer = match body {
-        Body::Empty => {
+    let mut transfer = match body {
+        ClientBody::Empty => {
             req.headers_mut().remove(CONTENT_LENGTH);
-            TransferEncoding::length(0, buf)
+            TransferEncoding::length(0)
         }
-        Body::Binary(ref mut bytes) => {
+        ClientBody::Binary(ref mut bytes) => {
             if encoding.is_compression() {
-                let tmp = SharedBytes::default();
-                let transfer = TransferEncoding::eof(tmp.clone());
+                let mut tmp = BytesMut::new();
+                let mut transfer = TransferEncoding::eof();
+                transfer.set_buffer(&mut tmp);
                 let mut enc = match encoding {
                     #[cfg(feature = "flate2")]
                     ContentEncoding::Deflate => ContentEncoder::Deflate(
@@ -242,7 +254,7 @@ fn content_encoder(buf: SharedBytes, req: &mut ClientRequest) -> ContentEncoder
                     ContentEncoding::Auto => unreachable!(),
                 };
                 // TODO return error!
-                let _ = enc.write(bytes.clone());
+                let _ = enc.write(bytes.as_ref());
                 let _ = enc.write_eof();
                 *bytes = Binary::from(tmp.take());
 
@@ -256,9 +268,9 @@ fn content_encoder(buf: SharedBytes, req: &mut ClientRequest) -> ContentEncoder
             let _ = write!(b, "{}", bytes.len());
             req.headers_mut()
                 .insert(CONTENT_LENGTH, HeaderValue::try_from(b.freeze()).unwrap());
-            TransferEncoding::eof(buf)
+            TransferEncoding::eof()
         }
-        Body::Streaming(_) | Body::Actor(_) => {
+        ClientBody::Streaming(_) | ClientBody::Actor(_) => {
             if req.upgrade() {
                 if version == Version::HTTP_2 {
                     error!("Connection upgrade is forbidden for HTTP/2");
@@ -270,9 +282,9 @@ fn content_encoder(buf: SharedBytes, req: &mut ClientRequest) -> ContentEncoder
                     encoding = ContentEncoding::Identity;
                     req.headers_mut().remove(CONTENT_ENCODING);
                 }
-                TransferEncoding::eof(buf)
+                TransferEncoding::eof()
             } else {
-                streaming_encoding(buf, version, req)
+                streaming_encoding(version, req)
             }
         }
     };
@@ -283,6 +295,7 @@ fn content_encoder(buf: SharedBytes, req: &mut ClientRequest) -> ContentEncoder
             HeaderValue::from_static(encoding.as_str()),
         );
     }
+    transfer.set_buffer(buf);
 
     req.replace_body(body);
     match encoding {
@@ -303,19 +316,17 @@ fn content_encoder(buf: SharedBytes, req: &mut ClientRequest) -> ContentEncoder
     }
 }
 
-fn streaming_encoding(
-    buf: SharedBytes, version: Version, req: &mut ClientRequest,
-) -> TransferEncoding {
+fn streaming_encoding(version: Version, req: &mut ClientRequest) -> TransferEncoding {
     if req.chunked() {
         // Enable transfer encoding
         req.headers_mut().remove(CONTENT_LENGTH);
         if version == Version::HTTP_2 {
             req.headers_mut().remove(TRANSFER_ENCODING);
-            TransferEncoding::eof(buf)
+            TransferEncoding::eof()
         } else {
             req.headers_mut()
                 .insert(TRANSFER_ENCODING, HeaderValue::from_static("chunked"));
-            TransferEncoding::chunked(buf)
+            TransferEncoding::chunked()
         }
     } else {
         // if Content-Length is specified, then use it as length hint
@@ -338,9 +349,9 @@ fn streaming_encoding(
 
         if !chunked {
             if let Some(len) = len {
-                TransferEncoding::length(len, buf)
+                TransferEncoding::length(len)
             } else {
-                TransferEncoding::eof(buf)
+                TransferEncoding::eof()
             }
         } else {
             // Enable transfer encoding
@@ -348,11 +359,11 @@ fn streaming_encoding(
                 Version::HTTP_11 => {
                     req.headers_mut()
                         .insert(TRANSFER_ENCODING, HeaderValue::from_static("chunked"));
-                    TransferEncoding::chunked(buf)
+                    TransferEncoding::chunked()
                 }
                 _ => {
                     req.headers_mut().remove(TRANSFER_ENCODING);
-                    TransferEncoding::eof(buf)
+                    TransferEncoding::eof()
                 }
             }
         }
diff --git a/src/context.rs b/src/context.rs
index 76594e7b..b40b4bbb 100644
--- a/src/context.rs
+++ b/src/context.rs
@@ -1,5 +1,5 @@
+use futures::sync::oneshot;
 use futures::sync::oneshot::Sender;
-use futures::unsync::oneshot;
 use futures::{Async, Future, Poll};
 use smallvec::SmallVec;
 use std::marker::PhantomData;
diff --git a/src/fs.rs b/src/fs.rs
index a8f66ded..8a362107 100644
--- a/src/fs.rs
+++ b/src/fs.rs
@@ -801,7 +801,6 @@ mod tests {
             .finish()
             .unwrap();
         let response = srv.execute(request.send()).unwrap();
-
         assert_eq!(response.status(), StatusCode::PARTIAL_CONTENT);
 
         // Invalid range header
diff --git a/src/pipeline.rs b/src/pipeline.rs
index be85dc33..289c5fcb 100644
--- a/src/pipeline.rs
+++ b/src/pipeline.rs
@@ -3,7 +3,7 @@ use std::marker::PhantomData;
 use std::rc::Rc;
 use std::{io, mem};
 
-use futures::unsync::oneshot;
+use futures::sync::oneshot;
 use futures::{Async, Future, Poll, Stream};
 use log::Level::Debug;
 
diff --git a/src/server/encoding.rs b/src/server/encoding.rs
index 4379a4ba..6d814482 100644
--- a/src/server/encoding.rs
+++ b/src/server/encoding.rs
@@ -1,7 +1,7 @@
 use std::fmt::Write as FmtWrite;
 use std::io::{Read, Write};
 use std::str::FromStr;
-use std::{cmp, io, mem};
+use std::{cmp, io, mem, ptr};
 
 #[cfg(feature = "brotli")]
 use brotli2::write::{BrotliDecoder, BrotliEncoder};
@@ -25,8 +25,6 @@ use httprequest::HttpInnerMessage;
 use httpresponse::HttpResponse;
 use payload::{PayloadSender, PayloadStatus, PayloadWriter};
 
-use super::shared::SharedBytes;
-
 pub(crate) enum PayloadType {
     Sender(PayloadSender),
     Encoding(Box<EncodedPayload>),
@@ -381,12 +379,12 @@ pub(crate) enum ContentEncoder {
 }
 
 impl ContentEncoder {
-    pub fn empty(bytes: SharedBytes) -> ContentEncoder {
-        ContentEncoder::Identity(TransferEncoding::eof(bytes))
+    pub fn empty() -> ContentEncoder {
+        ContentEncoder::Identity(TransferEncoding::eof())
     }
 
     pub fn for_server(
-        buf: SharedBytes, req: &HttpInnerMessage, resp: &mut HttpResponse,
+        buf: &mut BytesMut, req: &HttpInnerMessage, resp: &mut HttpResponse,
         response_encoding: ContentEncoding,
     ) -> ContentEncoder {
         let version = resp.version().unwrap_or_else(|| req.version);
@@ -441,7 +439,7 @@ impl ContentEncoder {
                 if req.method != Method::HEAD {
                     resp.headers_mut().remove(CONTENT_LENGTH);
                 }
-                TransferEncoding::length(0, buf)
+                TransferEncoding::length(0)
             }
             &Body::Binary(_) => {
                 #[cfg(any(feature = "brotli", feature = "flate2"))]
@@ -449,8 +447,9 @@ impl ContentEncoder {
                     if !(encoding == ContentEncoding::Identity
                         || encoding == ContentEncoding::Auto)
                     {
-                        let tmp = SharedBytes::default();
-                        let transfer = TransferEncoding::eof(tmp.clone());
+                        let mut tmp = BytesMut::default();
+                        let mut transfer = TransferEncoding::eof();
+                        transfer.set_buffer(&mut tmp);
                         let mut enc = match encoding {
                             #[cfg(feature = "flate2")]
                             ContentEncoding::Deflate => ContentEncoder::Deflate(
@@ -472,7 +471,7 @@ impl ContentEncoder {
                         let bin = resp.replace_body(Body::Empty).binary();
 
                         // TODO return error!
-                        let _ = enc.write(bin);
+                        let _ = enc.write(bin.as_ref());
                         let _ = enc.write_eof();
                         let body = tmp.take();
                         len = body.len();
@@ -492,7 +491,7 @@ impl ContentEncoder {
                 } else {
                     // resp.headers_mut().remove(CONTENT_LENGTH);
                 }
-                TransferEncoding::eof(buf)
+                TransferEncoding::eof()
             }
             &Body::Streaming(_) | &Body::Actor(_) => {
                 if resp.upgrade() {
@@ -503,14 +502,14 @@ impl ContentEncoder {
                         encoding = ContentEncoding::Identity;
                         resp.headers_mut().remove(CONTENT_ENCODING);
                     }
-                    TransferEncoding::eof(buf)
+                    TransferEncoding::eof()
                 } else {
                     if !(encoding == ContentEncoding::Identity
                         || encoding == ContentEncoding::Auto)
                     {
                         resp.headers_mut().remove(CONTENT_LENGTH);
                     }
-                    ContentEncoder::streaming_encoding(buf, version, resp)
+                    ContentEncoder::streaming_encoding(version, resp)
                 }
             }
         };
@@ -519,6 +518,7 @@ impl ContentEncoder {
             resp.set_body(Body::Empty);
             transfer.kind = TransferEncodingKind::Length(0);
         }
+        transfer.set_buffer(buf);
 
         match encoding {
             #[cfg(feature = "flate2")]
@@ -539,7 +539,7 @@ impl ContentEncoder {
     }
 
     fn streaming_encoding(
-        buf: SharedBytes, version: Version, resp: &mut HttpResponse,
+        version: Version, resp: &mut HttpResponse,
     ) -> TransferEncoding {
         match resp.chunked() {
             Some(true) => {
@@ -547,14 +547,14 @@ impl ContentEncoder {
                 resp.headers_mut().remove(CONTENT_LENGTH);
                 if version == Version::HTTP_2 {
                     resp.headers_mut().remove(TRANSFER_ENCODING);
-                    TransferEncoding::eof(buf)
+                    TransferEncoding::eof()
                 } else {
                     resp.headers_mut()
                         .insert(TRANSFER_ENCODING, HeaderValue::from_static("chunked"));
-                    TransferEncoding::chunked(buf)
+                    TransferEncoding::chunked()
                 }
             }
-            Some(false) => TransferEncoding::eof(buf),
+            Some(false) => TransferEncoding::eof(),
             None => {
                 // if Content-Length is specified, then use it as length hint
                 let (len, chunked) =
@@ -577,9 +577,9 @@ impl ContentEncoder {
 
                 if !chunked {
                     if let Some(len) = len {
-                        TransferEncoding::length(len, buf)
+                        TransferEncoding::length(len)
                     } else {
-                        TransferEncoding::eof(buf)
+                        TransferEncoding::eof()
                     }
                 } else {
                     // Enable transfer encoding
@@ -589,11 +589,11 @@ impl ContentEncoder {
                                 TRANSFER_ENCODING,
                                 HeaderValue::from_static("chunked"),
                             );
-                            TransferEncoding::chunked(buf)
+                            TransferEncoding::chunked()
                         }
                         _ => {
                             resp.headers_mut().remove(TRANSFER_ENCODING);
-                            TransferEncoding::eof(buf)
+                            TransferEncoding::eof()
                         }
                     }
                 }
@@ -619,10 +619,8 @@ impl ContentEncoder {
     #[cfg_attr(feature = "cargo-clippy", allow(inline_always))]
     #[inline(always)]
     pub fn write_eof(&mut self) -> Result<bool, io::Error> {
-        let encoder = mem::replace(
-            self,
-            ContentEncoder::Identity(TransferEncoding::eof(SharedBytes::empty())),
-        );
+        let encoder =
+            mem::replace(self, ContentEncoder::Identity(TransferEncoding::eof()));
 
         match encoder {
             #[cfg(feature = "brotli")]
@@ -662,38 +660,32 @@ impl ContentEncoder {
 
     #[cfg_attr(feature = "cargo-clippy", allow(inline_always))]
     #[inline(always)]
-    pub fn write(&mut self, data: Binary) -> Result<(), io::Error> {
+    pub fn write(&mut self, data: &[u8]) -> Result<(), io::Error> {
         match *self {
             #[cfg(feature = "brotli")]
-            ContentEncoder::Br(ref mut encoder) => {
-                match encoder.write_all(data.as_ref()) {
-                    Ok(_) => Ok(()),
-                    Err(err) => {
-                        trace!("Error decoding br encoding: {}", err);
-                        Err(err)
-                    }
+            ContentEncoder::Br(ref mut encoder) => match encoder.write_all(data) {
+                Ok(_) => Ok(()),
+                Err(err) => {
+                    trace!("Error decoding br encoding: {}", err);
+                    Err(err)
                 }
-            }
+            },
             #[cfg(feature = "flate2")]
-            ContentEncoder::Gzip(ref mut encoder) => {
-                match encoder.write_all(data.as_ref()) {
-                    Ok(_) => Ok(()),
-                    Err(err) => {
-                        trace!("Error decoding gzip encoding: {}", err);
-                        Err(err)
-                    }
+            ContentEncoder::Gzip(ref mut encoder) => match encoder.write_all(data) {
+                Ok(_) => Ok(()),
+                Err(err) => {
+                    trace!("Error decoding gzip encoding: {}", err);
+                    Err(err)
                 }
-            }
+            },
             #[cfg(feature = "flate2")]
-            ContentEncoder::Deflate(ref mut encoder) => {
-                match encoder.write_all(data.as_ref()) {
-                    Ok(_) => Ok(()),
-                    Err(err) => {
-                        trace!("Error decoding deflate encoding: {}", err);
-                        Err(err)
-                    }
+            ContentEncoder::Deflate(ref mut encoder) => match encoder.write_all(data) {
+                Ok(_) => Ok(()),
+                Err(err) => {
+                    trace!("Error decoding deflate encoding: {}", err);
+                    Err(err)
                 }
-            }
+            },
             ContentEncoder::Identity(ref mut encoder) => {
                 encoder.encode(data)?;
                 Ok(())
@@ -705,10 +697,12 @@ impl ContentEncoder {
 /// Encoders to handle different Transfer-Encodings.
 #[derive(Debug, Clone)]
 pub(crate) struct TransferEncoding {
+    buf: *mut BytesMut,
     kind: TransferEncodingKind,
-    buffer: SharedBytes,
 }
 
+unsafe impl Send for TransferEncoding {}
+
 #[derive(Debug, PartialEq, Clone)]
 enum TransferEncodingKind {
     /// An Encoder for when Transfer-Encoding includes `chunked`.
@@ -724,27 +718,31 @@ enum TransferEncodingKind {
 }
 
 impl TransferEncoding {
+    pub(crate) fn set_buffer(&mut self, buf: *mut BytesMut) {
+        self.buf = buf;
+    }
+
     #[inline]
-    pub fn eof(bytes: SharedBytes) -> TransferEncoding {
+    pub fn eof() -> TransferEncoding {
         TransferEncoding {
             kind: TransferEncodingKind::Eof,
-            buffer: bytes,
+            buf: ptr::null_mut(),
         }
     }
 
     #[inline]
-    pub fn chunked(bytes: SharedBytes) -> TransferEncoding {
+    pub fn chunked() -> TransferEncoding {
         TransferEncoding {
             kind: TransferEncodingKind::Chunked(false),
-            buffer: bytes,
+            buf: ptr::null_mut(),
         }
     }
 
     #[inline]
-    pub fn length(len: u64, bytes: SharedBytes) -> TransferEncoding {
+    pub fn length(len: u64) -> TransferEncoding {
         TransferEncoding {
             kind: TransferEncodingKind::Length(len),
-            buffer: bytes,
+            buf: ptr::null_mut(),
         }
     }
 
@@ -759,11 +757,13 @@ impl TransferEncoding {
 
     /// Encode message. Return `EOF` state of encoder
     #[inline]
-    pub fn encode(&mut self, mut msg: Binary) -> io::Result<bool> {
+    pub fn encode(&mut self, msg: &[u8]) -> io::Result<bool> {
         match self.kind {
             TransferEncodingKind::Eof => {
                 let eof = msg.is_empty();
-                self.buffer.extend(msg);
+                debug_assert!(!self.buf.is_null());
+                let buf = unsafe { &mut *self.buf };
+                buf.extend(msg);
                 Ok(eof)
             }
             TransferEncodingKind::Chunked(ref mut eof) => {
@@ -773,15 +773,20 @@ impl TransferEncoding {
 
                 if msg.is_empty() {
                     *eof = true;
-                    self.buffer.extend_from_slice(b"0\r\n\r\n");
+                    debug_assert!(!self.buf.is_null());
+                    let buf = unsafe { &mut *self.buf };
+                    buf.extend_from_slice(b"0\r\n\r\n");
                 } else {
                     let mut buf = BytesMut::new();
                     writeln!(&mut buf, "{:X}\r", msg.len())
                         .map_err(|e| io::Error::new(io::ErrorKind::Other, e))?;
-                    self.buffer.reserve(buf.len() + msg.len() + 2);
-                    self.buffer.extend(buf.into());
-                    self.buffer.extend(msg);
-                    self.buffer.extend_from_slice(b"\r\n");
+
+                    debug_assert!(!self.buf.is_null());
+                    let b = unsafe { &mut *self.buf };
+                    b.reserve(buf.len() + msg.len() + 2);
+                    b.extend_from_slice(buf.as_ref());
+                    b.extend_from_slice(msg);
+                    b.extend_from_slice(b"\r\n");
                 }
                 Ok(*eof)
             }
@@ -791,7 +796,9 @@ impl TransferEncoding {
                         return Ok(*remaining == 0);
                     }
                     let len = cmp::min(*remaining, msg.len() as u64);
-                    self.buffer.extend(msg.take().split_to(len as usize).into());
+
+                    debug_assert!(!self.buf.is_null());
+                    unsafe { &mut *self.buf }.extend(&msg[..len as usize]);
 
                     *remaining -= len as u64;
                     Ok(*remaining == 0)
@@ -811,7 +818,10 @@ impl TransferEncoding {
             TransferEncodingKind::Chunked(ref mut eof) => {
                 if !*eof {
                     *eof = true;
-                    self.buffer.extend_from_slice(b"0\r\n\r\n");
+
+                    debug_assert!(!self.buf.is_null());
+                    let buf = unsafe { &mut *self.buf };
+                    buf.extend_from_slice(b"0\r\n\r\n");
                 }
                 true
             }
@@ -822,7 +832,7 @@ impl TransferEncoding {
 impl io::Write for TransferEncoding {
     #[inline]
     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        self.encode(Binary::from_slice(buf))?;
+        self.encode(buf)?;
         Ok(buf.len())
     }
 
@@ -904,12 +914,15 @@ mod tests {
 
     #[test]
     fn test_chunked_te() {
-        let bytes = SharedBytes::default();
-        let mut enc = TransferEncoding::chunked(bytes.clone());
-        assert!(!enc.encode(Binary::from(b"test".as_ref())).ok().unwrap());
-        assert!(enc.encode(Binary::from(b"".as_ref())).ok().unwrap());
+        let mut bytes = BytesMut::new();
+        let mut enc = TransferEncoding::chunked();
+        {
+            enc.set_buffer(&mut bytes);
+            assert!(!enc.encode(b"test").ok().unwrap());
+            assert!(enc.encode(b"").ok().unwrap());
+        }
         assert_eq!(
-            bytes.get_mut().take().freeze(),
+            bytes.take().freeze(),
             Bytes::from_static(b"4\r\ntest\r\n0\r\n\r\n")
         );
     }
diff --git a/src/server/h1writer.rs b/src/server/h1writer.rs
index 648a164f..a144a2ff 100644
--- a/src/server/h1writer.rs
+++ b/src/server/h1writer.rs
@@ -46,7 +46,7 @@ impl<T: AsyncWrite, H: 'static> H1Writer<T, H> {
     ) -> H1Writer<T, H> {
         H1Writer {
             flags: Flags::KEEPALIVE,
-            encoder: ContentEncoder::empty(buf.clone()),
+            encoder: ContentEncoder::empty(),
             written: 0,
             headers_size: 0,
             buffer: buf,
@@ -116,7 +116,7 @@ impl<T: AsyncWrite, H: 'static> Writer for H1Writer<T, H> {
     ) -> io::Result<WriterState> {
         // prepare task
         self.encoder =
-            ContentEncoder::for_server(self.buffer.clone(), req, msg, encoding);
+            ContentEncoder::for_server(self.buffer.get_mut(), req, msg, encoding);
         if msg.keep_alive().unwrap_or_else(|| req.keep_alive()) {
             self.flags = Flags::STARTED | Flags::KEEPALIVE;
         } else {
@@ -223,7 +223,7 @@ impl<T: AsyncWrite, H: 'static> Writer for H1Writer<T, H> {
 
         if let Body::Binary(bytes) = body {
             self.written = bytes.len() as u64;
-            self.encoder.write(bytes)?;
+            self.encoder.write(bytes.as_ref())?;
         } else {
             // capacity, makes sense only for streaming or actor
             self.buffer_capacity = msg.write_buffer_capacity();
@@ -251,7 +251,7 @@ impl<T: AsyncWrite, H: 'static> Writer for H1Writer<T, H> {
                     }
                 } else {
                     // TODO: add warning, write after EOF
-                    self.encoder.write(payload)?;
+                    self.encoder.write(payload.as_ref())?;
                 }
             } else {
                 // could be response to EXCEPT header
diff --git a/src/server/h2writer.rs b/src/server/h2writer.rs
index 5fc13154..78a1ce18 100644
--- a/src/server/h2writer.rs
+++ b/src/server/h2writer.rs
@@ -51,7 +51,7 @@ impl<H: 'static> H2Writer<H> {
             respond,
             settings,
             stream: None,
-            encoder: ContentEncoder::empty(buf.clone()),
+            encoder: ContentEncoder::empty(),
             flags: Flags::empty(),
             written: 0,
             buffer: buf,
@@ -88,7 +88,7 @@ impl<H: 'static> Writer for H2Writer<H> {
         // prepare response
         self.flags.insert(Flags::STARTED);
         self.encoder =
-            ContentEncoder::for_server(self.buffer.clone(), req, msg, encoding);
+            ContentEncoder::for_server(self.buffer.get_mut(), req, msg, encoding);
         if let Body::Empty = *msg.body() {
             self.flags.insert(Flags::EOF);
         }
@@ -143,7 +143,7 @@ impl<H: 'static> Writer for H2Writer<H> {
         if let Body::Binary(bytes) = body {
             self.flags.insert(Flags::EOF);
             self.written = bytes.len() as u64;
-            self.encoder.write(bytes)?;
+            self.encoder.write(bytes.as_ref())?;
             if let Some(ref mut stream) = self.stream {
                 self.flags.insert(Flags::RESERVED);
                 stream.reserve_capacity(cmp::min(self.buffer.len(), CHUNK_SIZE));
@@ -162,7 +162,7 @@ impl<H: 'static> Writer for H2Writer<H> {
         if !self.flags.contains(Flags::DISCONNECTED) {
             if self.flags.contains(Flags::STARTED) {
                 // TODO: add warning, write after EOF
-                self.encoder.write(payload)?;
+                self.encoder.write(payload.as_ref())?;
             } else {
                 // might be response for EXCEPT
                 self.buffer.extend_from_slice(payload.as_ref())
diff --git a/src/server/shared.rs b/src/server/shared.rs
index 2d7e285b..54f7b1e6 100644
--- a/src/server/shared.rs
+++ b/src/server/shared.rs
@@ -48,10 +48,6 @@ impl Drop for SharedBytes {
 }
 
 impl SharedBytes {
-    pub fn empty() -> Self {
-        SharedBytes(None, None)
-    }
-
     pub fn new(bytes: Rc<BytesMut>, pool: Rc<SharedBytesPool>) -> SharedBytes {
         SharedBytes(Some(bytes), Some(pool))
     }
@@ -87,11 +83,6 @@ impl SharedBytes {
         self.get_mut().take()
     }
 
-    #[inline]
-    pub fn reserve(&self, cnt: usize) {
-        self.get_mut().reserve(cnt)
-    }
-
     #[inline]
     #[cfg_attr(feature = "cargo-clippy", allow(needless_pass_by_value))]
     pub fn extend(&self, data: Binary) {
diff --git a/src/test.rs b/src/test.rs
index 28403625..558695ad 100644
--- a/src/test.rs
+++ b/src/test.rs
@@ -60,7 +60,6 @@ use ws;
 /// ```
 pub struct TestServer {
     addr: net::SocketAddr,
-    thread: Option<thread::JoinHandle<()>>,
     server_sys: Addr<System>,
     ssl: bool,
     conn: Addr<ClientConnector>,
@@ -107,7 +106,7 @@ impl TestServer {
         let (tx, rx) = mpsc::channel();
 
         // run server in separate thread
-        let join = thread::spawn(move || {
+        thread::spawn(move || {
             let sys = System::new("actix-test-server");
             let tcp = net::TcpListener::bind("127.0.0.1:0").unwrap();
             let local_addr = tcp.local_addr().unwrap();
@@ -134,7 +133,6 @@ impl TestServer {
             server_sys,
             conn,
             ssl: false,
-            thread: Some(join),
             rt: Runtime::new().unwrap(),
         }
     }
@@ -190,10 +188,7 @@ impl TestServer {
 
     /// Stop http server
     fn stop(&mut self) {
-        if let Some(handle) = self.thread.take() {
-            self.server_sys.do_send(msgs::SystemExit(0));
-            let _ = handle.join();
-        }
+        self.server_sys.do_send(msgs::SystemExit(0));
     }
 
     /// Execute future on current core
@@ -287,7 +282,7 @@ impl<S: 'static> TestServerBuilder<S> {
         let ssl = false;
 
         // run server in separate thread
-        let join = thread::spawn(move || {
+        thread::spawn(move || {
             let tcp = net::TcpListener::bind("127.0.0.1:0").unwrap();
             let local_addr = tcp.local_addr().unwrap();
 
@@ -332,7 +327,6 @@ impl<S: 'static> TestServerBuilder<S> {
             ssl,
             conn,
             server_sys,
-            thread: Some(join),
             rt: Runtime::new().unwrap(),
         }
     }
diff --git a/src/ws/client.rs b/src/ws/client.rs
index f8366752..fcf6ed40 100644
--- a/src/ws/client.rs
+++ b/src/ws/client.rs
@@ -7,7 +7,7 @@ use std::{fmt, io, str};
 use base64;
 use bytes::Bytes;
 use cookie::Cookie;
-use futures::unsync::mpsc::{unbounded, UnboundedSender};
+use futures::sync::mpsc::{unbounded, UnboundedSender};
 use futures::{Async, Future, Poll, Stream};
 use http::header::{self, HeaderName, HeaderValue};
 use http::{Error as HttpError, HttpTryFrom, StatusCode};
@@ -16,14 +16,14 @@ use sha1::Sha1;
 
 use actix::prelude::*;
 
-use body::{Binary, Body};
+use body::Binary;
 use error::{Error, UrlParseError};
 use header::IntoHeaderValue;
 use httpmessage::HttpMessage;
 use payload::PayloadHelper;
 
 use client::{
-    ClientConnector, ClientRequest, ClientRequestBuilder, ClientResponse,
+    ClientBody, ClientConnector, ClientRequest, ClientRequestBuilder, ClientResponse,
     HttpResponseParserError, SendRequest, SendRequestError,
 };
 
@@ -283,7 +283,7 @@ impl ClientHandshake {
         );
 
         let (tx, rx) = unbounded();
-        request.set_body(Body::Streaming(Box::new(rx.map_err(|_| {
+        request.set_body(ClientBody::Streaming(Box::new(rx.map_err(|_| {
             io::Error::new(io::ErrorKind::Other, "disconnected").into()
         }))));
 
diff --git a/src/ws/context.rs b/src/ws/context.rs
index 22323f49..2d7802b0 100644
--- a/src/ws/context.rs
+++ b/src/ws/context.rs
@@ -1,5 +1,4 @@
-use futures::sync::oneshot::Sender;
-use futures::unsync::oneshot;
+use futures::sync::oneshot::{self, Sender};
 use futures::{Async, Poll};
 use smallvec::SmallVec;
 
diff --git a/tests/test_client.rs b/tests/test_client.rs
index 5496e59f..9b9fb0e8 100644
--- a/tests/test_client.rs
+++ b/tests/test_client.rs
@@ -343,7 +343,10 @@ fn test_client_streaming_explicit() {
 
     let body = once(Ok(Bytes::from_static(STR.as_ref())));
 
-    let request = srv.get().body(Body::Streaming(Box::new(body))).unwrap();
+    let request = srv
+        .get()
+        .body(client::ClientBody::Streaming(Box::new(body)))
+        .unwrap();
     let response = srv.execute(request.send()).unwrap();
     assert!(response.status().is_success());
 
diff --git a/tests/test_server.rs b/tests/test_server.rs
index 120eef06..ed2848f7 100644
--- a/tests/test_server.rs
+++ b/tests/test_server.rs
@@ -32,7 +32,7 @@ use tokio::executor::current_thread;
 use tokio::runtime::current_thread::Runtime;
 use tokio_tcp::TcpStream;
 
-use actix::System;
+use actix::{msgs::SystemExit, Arbiter, System};
 use actix_web::*;
 
 const STR: &str = "Hello World Hello World Hello World Hello World Hello World \
@@ -74,12 +74,11 @@ fn test_start() {
             let srv = srv.bind("127.0.0.1:0").unwrap();
             let addr = srv.addrs()[0];
             let srv_addr = srv.start();
-            let _ = tx.send((addr, srv_addr));
+            let _ = tx.send((addr, srv_addr, Arbiter::system()));
         });
     });
-    let (addr, srv_addr) = rx.recv().unwrap();
+    let (addr, srv_addr, sys) = rx.recv().unwrap();
 
-    let _sys = System::new("test-server");
     let mut rt = Runtime::new().unwrap();
     {
         let req = client::ClientRequest::get(format!("http://{}/", addr).as_str())
@@ -102,7 +101,7 @@ fn test_start() {
 
     // resume
     let _ = srv_addr.send(server::ResumeServer).wait();
-    thread::sleep(time::Duration::from_millis(400));
+    thread::sleep(time::Duration::from_millis(200));
     {
         let req = client::ClientRequest::get(format!("http://{}/", addr).as_str())
             .finish()
@@ -110,6 +109,8 @@ fn test_start() {
         let response = rt.block_on(req.send()).unwrap();
         assert!(response.status().is_success());
     }
+
+    let _ = sys.send(SystemExit(0)).wait();
 }
 
 #[test]
@@ -129,12 +130,11 @@ fn test_shutdown() {
             let srv = srv.bind("127.0.0.1:0").unwrap();
             let addr = srv.addrs()[0];
             let srv_addr = srv.shutdown_timeout(1).start();
-            let _ = tx.send((addr, srv_addr));
+            let _ = tx.send((addr, srv_addr, Arbiter::system()));
         });
     });
-    let (addr, srv_addr) = rx.recv().unwrap();
+    let (addr, srv_addr, sys) = rx.recv().unwrap();
 
-    let _sys = System::new("test-server");
     let mut rt = Runtime::new().unwrap();
     {
         let req = client::ClientRequest::get(format!("http://{}/", addr).as_str())
@@ -147,6 +147,8 @@ fn test_shutdown() {
 
     thread::sleep(time::Duration::from_millis(1000));
     assert!(net::TcpStream::connect(addr).is_err());
+
+    let _ = sys.send(SystemExit(0)).wait();
 }
 
 #[test]