throughput tests use P2P sockets consistently

perf/cpp/remote_thr.cpp

@@ -36,7 +36,7 @@ int main (int argc, char *argv [])
 
     zmq::context_t ctx (1, 1);
 
-    zmq::socket_t s (ctx, ZMQ_REQ);
+    zmq::socket_t s (ctx, ZMQ_P2P);
     s.connect (connect_to);
 
     for (int i = 0; i != message_count; i++) {

perf/java/local_thr.java

@@ -35,7 +35,7 @@ class local_thr
 
          org.zmq.Context ctx = new org.zmq.Context (1, 1);
 
-         org.zmq.Socket s = new org.zmq.Socket (ctx, org.zmq.Socket.SUB);
+         org.zmq.Socket s = new org.zmq.Socket (ctx, org.zmq.Socket.P2P);
          s.bind (bindTo);
 
          byte [] data = s.recv (0);

perf/java/remote_thr.java

@@ -36,7 +36,7 @@ class remote_thr
 
          org.zmq.Context ctx = new org.zmq.Context (1, 1);
 
-         org.zmq.Socket s = new org.zmq.Socket (ctx, org.zmq.Socket.PUB);
+         org.zmq.Socket s = new org.zmq.Socket (ctx, org.zmq.Socket.P2P);
          s.connect (connectTo);
 
          byte msg [] = new byte [messageSize];

perf/ruby/local_thr.rb

@@ -28,7 +28,7 @@ message_size = ARGV[1].to_i
 message_count = ARGV[2].to_i
 					
 ctx = Context.new(1, 1)
-s = Socket.new(ctx, SUB);
+s = Socket.new(ctx, P2P);
 s.bind(bind_to);
 
 msg = s.recv(0)

perf/ruby/remote_thr.rb

@@ -28,7 +28,7 @@ message_size = ARGV[1].to_i
 message_count = ARGV[2].to_i
 			
 ctx = Context.new(1, 1)
-s = Socket.new(ctx, PUB);
+s = Socket.new(ctx, P2P);
 s.connect(connect_to);
 
 msg = "#{'0'*message_size}"