diff --git a/perf/c/local_lat.c b/perf/c/local_lat.c
new file mode 100644
index 00000000..707d4987
--- /dev/null
+++ b/perf/c/local_lat.c
@@ -0,0 +1,70 @@
+/*
+    Copyright (c) 2007-2009 FastMQ Inc.
+
+    This file is part of 0MQ.
+
+    0MQ is free software; you can redistribute it and/or modify it under
+    the terms of the Lesser GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    0MQ is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    Lesser GNU General Public License for more details.
+
+    You should have received a copy of the Lesser GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <zmq.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <assert.h>
+
+int main (int argc, char *argv [])
+{
+    const char *bind_to;
+    int roundtrip_count;
+    int message_size;
+    void *ctx;
+    void *s;
+    int rc;
+    int i;
+    zmq_msg_t msg;
+
+    if (argc != 4) {
+        printf ("usage: local_lat <bind-to> <roundtrip-count> "
+            "<message-size>\n");
+        return 1;
+    }
+    bind_to = argv [1];
+    roundtrip_count = atoi (argv [2]);
+    message_size = atoi (argv [3]);
+
+    ctx = zmq_init (1, 1);
+    assert (ctx);
+
+    s = zmq_socket (ctx, ZMQ_REP);
+    assert (s);
+
+    rc = zmq_bind (s, bind_to);
+    assert (rc == 0);
+
+    for (i = 0; i != roundtrip_count; i++) {
+        rc = zmq_msg_init (&msg);
+        assert (rc == 0);
+        rc = zmq_recv (s, &msg, 0);
+        assert (rc == 0);
+        assert (zmq_msg_size (&msg) == message_size);
+        rc = zmq_send (s, &msg, 0);
+        assert (rc == 0);
+        rc = zmq_msg_close (&msg);
+        assert (rc == 0);
+    }
+
+    sleep (1);
+
+    return 0;
+}
diff --git a/perf/c/local_thr.c b/perf/c/local_thr.c
new file mode 100644
index 00000000..c9614107
--- /dev/null
+++ b/perf/c/local_thr.c
@@ -0,0 +1,91 @@
+/*
+    Copyright (c) 2007-2009 FastMQ Inc.
+
+    This file is part of 0MQ.
+
+    0MQ is free software; you can redistribute it and/or modify it under
+    the terms of the Lesser GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    0MQ is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    Lesser GNU General Public License for more details.
+
+    You should have received a copy of the Lesser GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <zmq.hpp>
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <sys/time.h>
+
+int main (int argc, char *argv [])
+{
+    const char *bind_to;
+    int message_count;
+    int message_size;
+    void *ctx;
+    void *s;
+    int rc;
+    int i;
+    zmq_msg_t msg;
+    long long elapsed;
+    long long throughput;
+
+    if (argc != 4) {
+        printf ("usage: local_thr <bind-to> <message-count> "
+            "<message-size>\n");
+        return 1;
+    }
+    bind_to = argv [1];
+    message_count = atoi (argv [2]);
+    message_size = atoi (argv [3]);
+
+    ctx = zmq_init (1, 1);
+    assert (ctx);
+
+    s = zmq_socket (ctx, ZMQ_P2P);
+    assert (s);
+
+    rc = zmq_bind (s, bind_to);
+    assert (rc == 0);
+
+    rc = zmq_msg_init (&msg);
+    assert (rc == 0);
+
+    rc = zmq_recv (s, &msg, 0);
+    assert (rc == 0);
+    assert (zmq_msg_size (&msg) == message_size);
+
+    timeval start;
+    rc = gettimeofday (&start, NULL);
+    assert (rc == 0);
+
+    for (i = 0; i != message_count - 1; i++) {
+        rc = zmq_recv (s, &msg, 0);
+        assert (rc == 0);
+        assert (zmq_msg_size (&msg) == message_size);
+    }
+
+    timeval end;
+    rc = gettimeofday (&end, NULL);
+    assert (rc == 0);
+
+    end.tv_sec -= start.tv_sec;
+    start.tv_sec = 0;
+
+    elapsed = (end.tv_sec * 1000000 + end.tv_usec) -
+        (start.tv_sec * 1000000 + start.tv_usec);
+
+    throughput = (long long) message_count * 1000000 / elapsed;
+
+    printf ("message size: %d [B]\n", (int) message_size);
+    printf ("message count: %d\n", (int) message_count);
+    printf ("mean throughput: %d [msg/s]\n", (int) throughput);
+
+    return 0;
+}
diff --git a/perf/c/remote_lat.c b/perf/c/remote_lat.c
new file mode 100644
index 00000000..025c57de
--- /dev/null
+++ b/perf/c/remote_lat.c
@@ -0,0 +1,90 @@
+/*
+    Copyright (c) 2007-2009 FastMQ Inc.
+
+    This file is part of 0MQ.
+
+    0MQ is free software; you can redistribute it and/or modify it under
+    the terms of the Lesser GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    0MQ is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    Lesser GNU General Public License for more details.
+
+    You should have received a copy of the Lesser GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <zmq.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <sys/time.h>
+
+int main (int argc, char *argv [])
+{
+    const char *connect_to;
+    int roundtrip_count;
+    int message_size;
+    void *ctx;
+    void *s;
+    int rc;
+    int i;
+    zmq_msg_t msg;
+    double elapsed;
+    double latency;
+
+    if (argc != 4) {
+        printf ("usage: remote_lat <connect-to> <roundtrip-count> "
+            "<message-size>\n");
+        return 1;
+    }
+    connect_to = argv [1];
+    roundtrip_count = atoi (argv [2]);
+    message_size = atoi (argv [3]);
+
+    ctx = zmq_init (1, 1);
+    assert (ctx);
+
+    s = zmq_socket (ctx, ZMQ_REQ);
+    assert (s);
+
+    rc = zmq_connect (s, connect_to);
+    assert (rc == 0);
+
+    timeval start;
+    rc = gettimeofday (&start, NULL);
+    assert (rc == 0);
+
+    for (i = 0; i != roundtrip_count; i++) {
+        rc = zmq_msg_init_size (&msg, message_size);
+        assert (rc == 0);
+        rc = zmq_send (s, &msg, 0);
+        assert (rc == 0);
+        rc = zmq_recv (s, &msg, 0);
+        assert (rc == 0);
+        assert (zmq_msg_size (&msg) == message_size);
+        rc = zmq_msg_close (&msg);
+        assert (rc == 0);
+    }
+
+
+    timeval end;
+    rc = gettimeofday (&end, NULL);
+    assert (rc == 0);
+
+    end.tv_sec -= start.tv_sec;
+    start.tv_sec = 0;
+
+    elapsed = (end.tv_sec * 1000000 + end.tv_usec) -
+        (start.tv_sec * 1000000 + start.tv_usec);
+    latency = elapsed / (roundtrip_count * 2);
+
+    printf ("message size: %d [B]\n", (int) message_size);
+    printf ("roundtrip count: %d\n", (int) roundtrip_count);
+    printf ("average latency: %3f [us]\n", (double) latency);
+
+    return 0;
+}
diff --git a/perf/c/remote_thr.c b/perf/c/remote_thr.c
new file mode 100644
index 00000000..a30c6f29
--- /dev/null
+++ b/perf/c/remote_thr.c
@@ -0,0 +1,67 @@
+/*
+    Copyright (c) 2007-2009 FastMQ Inc.
+
+    This file is part of 0MQ.
+
+    0MQ is free software; you can redistribute it and/or modify it under
+    the terms of the Lesser GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    0MQ is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    Lesser GNU General Public License for more details.
+
+    You should have received a copy of the Lesser GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <zmq.hpp>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <assert.h>
+
+int main (int argc, char *argv [])
+{
+    const char *connect_to;
+    int message_count;
+    int message_size;
+    void *ctx;
+    void *s;
+    int rc;
+    int i;
+    zmq_msg_t msg;
+
+    if (argc != 4) {
+        printf ("usage: remote_thr <connect-to> <message-count> "
+            "<message-size>\n");
+        return 1;
+    }
+    connect_to = argv [1];
+    message_count = atoi (argv [2]);
+    message_size = atoi (argv [3]);
+
+    ctx = zmq_init (1, 1);
+    assert (ctx);
+
+    s = zmq_socket (ctx, ZMQ_P2P);
+    assert (s);
+
+    rc = zmq_connect (s, connect_to);
+    assert (rc == 0);
+
+    for (i = 0; i != message_count; i++) {
+        rc = zmq_msg_init_size (&msg, message_size);
+        assert (rc == 0);
+        rc = zmq_send (s, &msg, 0);
+        assert (rc == 0);
+        rc = zmq_msg_close (&msg);
+        assert (rc == 0);
+    }
+
+    sleep (10);
+
+    return 0;
+}