diff -r 5be0d816aff5 src/java.httpclient/share/classes/java/net/http/PlainHttpConnection.java
--- a/src/java.httpclient/share/classes/java/net/http/PlainHttpConnection.java	Mon Jun 06 09:13:35 2016 +0200
+++ b/src/java.httpclient/share/classes/java/net/http/PlainHttpConnection.java	Tue Jun 07 12:22:19 2016 -0700
@@ -128,6 +128,7 @@
             this.chan = SocketChannel.open();
             int bufsize = client.getReceiveBufferSize();
             chan.setOption(StandardSocketOptions.SO_RCVBUF, bufsize);
+            chan.socket().setTcpNoDelay(true);
         } catch (IOException e) {
             throw new InternalError(e);
         }