Add simple TCP connect and TCP receive benchmark components, intended to

measure the rate of TCP connection round trips supported by a host at
the socket layer.

tools/tools/netrate/tcpconnect/Makefile

@@ -0,0 +1,7 @@
+# $FreeBSD$
+
+PROG=	tcpconnect
+WARNS=	3
+NO_MAN=
+
+.include <bsd.prog.mk>

tools/tools/netrate/tcpconnect/tcpconnect.c

@@ -0,0 +1,135 @@
+/*-
+ * Copyright (c) 2005 Robert N. M. Watson
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/types.h>
+#include <sys/fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+
+#include <arpa/inet.h>
+
+#include <err.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+/*
+ * Simple micro-benchmark to see how many connections/second can be created
+ * in a serialized fashion against a given server.  A timer signal is used
+ * to interrupt the loop and assess the cost.
+ */
+#define	SECONDS	60
+#define	PORT	6060
+
+static int	timer_fired;
+
+/*
+ * Signal timer, which both interrupts the in-progress socket operation, and
+ * flags the timer as having fired so the main loop can exit.
+ */
+static void
+alarm_handler(__unused int signum)
+{
+
+	timer_fired = 1;
+}
+
+/*
+ * Build a connection.  In order to make sure the signal interrupts us as
+ * we wait, use non-blocking sockets and select().  Return 0 on success, or
+ * -1 if we were interrupted.  Exit with a failure if we get an unspected
+ * error.
+ */
+static int
+try_connect(struct sockaddr_in *sin)
+{
+	struct 
+	fd_set read_set;
+	int i, s;
+
+	s = socket(PF_INET, SOCK_STREAM, 0);
+	if (s < 0)
+		err(-1, "socket(PF_INET, SOCK_STREAM)");
+
+	i = 1;
+	if (fcntl(s, F_SETFL, FIONBIO, &i) < 0)
+		err(-1, "fcntl(s, FIOBIO, 1)");
+
+	FD_ZERO(&read_set);
+	FD_SET(s, &read_set);
+
+	if (connect(s, (struct sockaddr *)sin, sizeof(*sin)) < 0 &&
+	    errno != EINPROGRESS)
+		err(-1, "connect(%s)", inet_ntoa(sin->sin_addr));
+
+	if (select(s + 1, &read_set, &read_set, &read_set, NULL) < 0) {
+		if ((errno == EINTR && !timer_fired) || (errno != EINTR))
+			err(-1, "select");
+		return (-1);
+	}
+
+	close(s);
+	return (0);
+}
+
+
+int
+main(int argc, char *argv[])
+{
+	struct sockaddr_in sin;
+	u_int64_t counter;
+
+	if (argc != 2)
+		err(-1, "usage: tcpconnect [ip]");
+
+	bzero(&sin, sizeof(sin));
+	sin.sin_family = AF_INET;
+	sin.sin_len = sizeof(sin);
+	sin.sin_addr.s_addr = inet_addr(argv[1]);
+	sin.sin_port = htons(PORT);
+
+	if (signal(SIGALRM, alarm_handler) == SIG_ERR)
+		err(-1, "signal(SIGALRM)");
+
+	alarm(SECONDS);
+
+	counter = 0;
+	while (!timer_fired) {
+		if (try_connect(&sin) == 0)
+			counter++;
+	}
+	printf("%llu count\n", counter);
+	printf("%llu connections/second\n", counter / SECONDS);
+
+	return (0);
+}

tools/tools/netrate/tcpreceive/Makefile

@@ -0,0 +1,7 @@
+# $FreeBSD$
+
+PROG=	tcpreceive
+WARNS=	3
+NO_MAN=
+
+.include <bsd.prog.mk>

tools/tools/netrate/tcpreceive/tcpreceive.c

@@ -0,0 +1,113 @@
+/*-
+ * Copyright (c) 2005 Robert N. M. Watson
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Back end to a variety of TCP-related benchmarks.  This program accepts TCP
+ * connections on a port, and echoes all received data back to the sender.
+ * It is capable of handling only one connection at a time out of a single
+ * thread.
+ */
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+
+#include <arpa/inet.h>
+
+#include <err.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/*
+ * Simple micro-benchmark to see how many connections/second can be created
+ * in a serialized fashion against a given server.  A timer signal is used
+ * to interrupt the loop and assess the cost, and uses a fixed maximum
+ * buffer size.  It makes no attempt to time out old connections.
+ */
+#define	BUFFERSIZE	128*1024
+#define	PORT		6060
+
+static void
+handle_connection(int accept_sock)
+{
+	u_char buffer[BUFFERSIZE];
+	ssize_t len, recvlen, sofar;
+	int s;
+
+	s = accept(accept_sock, NULL, NULL);
+	if (s < 0) {
+		warn("accept");
+		return;
+	}
+
+	while (1) {
+		recvlen = recv(s, buffer, BUFFERSIZE, 0);
+		if (recvlen < 0 || recvlen == 0) {
+			close(s);
+			return;
+		}
+		sofar = 0;
+		while (sofar < recvlen) {
+			len = send(s, buffer + sofar, recvlen - sofar, 0);
+			if (len < 0) {
+				close(s);
+				return;
+			}
+			sofar += len;
+		}
+	}
+}
+
+int
+main(int argc, char *argv[])
+{
+	struct sockaddr_in sin;
+	int accept_sock;
+
+	accept_sock = socket(PF_INET, SOCK_STREAM, 0);
+	if (accept_sock < 0)
+		err(-1, "socket(PF_INET, SOCKET_STREAM, 0)");
+
+	bzero(&sin, sizeof(sin));
+	sin.sin_family = AF_INET;
+	sin.sin_len = sizeof(sin);
+	sin.sin_addr.s_addr = INADDR_ANY;
+	sin.sin_port = htons(PORT);
+
+	if (bind(accept_sock, (struct sockaddr *)&sin, sizeof(sin)) < 0)
+		err(-1, "bind");
+
+	if (listen(accept_sock, -1) < 0)
+		err(-1, "listen");
+
+	while (1)
+		handle_connection(accept_sock);
+
+	return (0);
+}