+++ /dev/null
-/*
- * Copyright (c) 2010, 2011, 2012, 2013, 2015 Nicira, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <config.h>
-
-#include <errno.h>
-#include <getopt.h>
-#include <limits.h>
-#include <poll.h>
-#include <stdlib.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-#include <stddef.h>
-#include <unistd.h>
-
-#include "command-line.h"
-#include "poll-loop.h"
-#include "socket-util.h"
-#include "timeval.h"
-#include "util.h"
-#include "openvswitch/vlog.h"
-
-#define DEFAULT_PORT 6630
-
-#define MAX_SOCKETS 65535
-static int n_batches = 1;
-static int n_sockets = 100;
-
-static struct in_addr local_addr;
-static unsigned short int local_min_port, local_max_port;
-
-static struct in_addr remote_addr;
-static unsigned short int remote_min_port, remote_max_port;
-
-static double max_rate;
-
-static double timeout;
-
-static const struct ovs_cmdl_command *get_all_commands(void);
-
-static void parse_options(int argc, char *argv[]);
-static void usage(void);
-
-static int
-do_poll(struct pollfd *fds, int nfds, int timeout)
-{
- int retval;
-#ifndef _WIN32
- do {
- retval = poll(fds, nfds, timeout);
- } while (retval < 0 && errno == EINTR);
-#else
- retval = WSAPoll(fds, nfds, timeout);
-#endif
- return retval;
-}
-
-static long long int
-time_in_msec(void)
-{
- struct timeval tv;
-
- xgettimeofday(&tv);
-
- return tv.tv_sec * 1000LL + tv.tv_usec / 1000;
-}
-
-int
-main(int argc, char *argv[])
-{
- struct ovs_cmdl_context ctx = { .argc = 0, };
- set_program_name(argv[0]);
- vlog_set_levels(NULL, VLF_ANY_DESTINATION, VLL_EMER);
- parse_options(argc, argv);
- ctx.argc = argc - optind;
- ctx.argv = argv + optind;
- ovs_cmdl_run_command(&ctx, get_all_commands());
- return 0;
-}
-
-static void
-parse_target(const char *s_, struct in_addr *addr,
- unsigned short int *min, unsigned short int *max)
-{
- char *s = xstrdup(s_);
- char *colon;
- int error;
-
- colon = strchr(s, ':');
- if (colon) {
- *colon = '\0';
- }
-
- if (*s != '\0') {
- error = lookup_hostname(s, addr);
- if (error) {
- ovs_fatal(error, "failed to look up IP address for \"%s\"", s_);
- }
- } else {
- addr->s_addr = htonl(INADDR_ANY);
- }
-
- *min = *max = 0;
- if (colon && colon[1] != '\0') {
- const char *ports = colon + 1;
- if (ovs_scan(ports, "%hu-%hu", min, max)) {
- if (*min > *max) {
- ovs_fatal(0, "%s: minimum is greater than maximum", s_);
- }
- } else if (ovs_scan(ports, "%hu", min)) {
- *max = *min;
- } else {
- ovs_fatal(0, "%s: number or range expected", s_);
- }
- }
-
- free(s);
-}
-
-static void
-parse_options(int argc, char *argv[])
-{
- static const struct option long_options[] = {
- {"local", required_argument, NULL, 'l'},
- {"remote", required_argument, NULL, 'r'},
- {"batches", required_argument, NULL, 'b'},
- {"sockets", required_argument, NULL, 's'},
- {"max-rate", required_argument, NULL, 'c'},
- {"timeout", required_argument, NULL, 'T'},
- {"help", no_argument, NULL, 'h'},
- {"version", no_argument, NULL, 'V'},
- {NULL, 0, NULL, 0},
- };
- char *short_options = ovs_cmdl_long_options_to_short_options(long_options);
-
- local_addr.s_addr = htonl(INADDR_ANY);
- local_min_port = local_max_port = 0;
-
- remote_addr.s_addr = htonl(0);
- remote_min_port = remote_max_port = 0;
-
- for (;;) {
- int c;
-
- c = getopt_long(argc, argv, short_options, long_options, NULL);
- if (c == -1) {
- break;
- }
-
- switch (c) {
- case 'l':
- parse_target(optarg,
- &local_addr, &local_min_port, &local_max_port);
- break;
-
- case 'r':
- parse_target(optarg,
- &remote_addr, &remote_min_port, &remote_max_port);
- if (remote_addr.s_addr == htonl(INADDR_ANY)) {
- ovs_fatal(0, "remote IP address is required");
- }
- break;
-
- case 'b':
- n_batches = atoi(optarg);
- if (n_batches < 0) {
- ovs_fatal(0, "--batches or -b argument must be at least 1");
- }
- break;
-
- case 's':
- n_sockets = atoi(optarg);
- if (n_sockets < 1 || n_sockets > MAX_SOCKETS) {
- ovs_fatal(0, "--sockets or -s argument must be between 1 "
- "and %d (inclusive)", MAX_SOCKETS);
- }
- break;
-
- case 'c':
- max_rate = atof(optarg);
- if (max_rate <= 0.0) {
- ovs_fatal(0, "--max-rate or -c argument must be positive");
- }
- break;
-
- case 'T':
- timeout = atoi(optarg);
- if (!timeout) {
- ovs_fatal(0, "-T or --timeout argument must be positive");
- }
- break;
-
- case 'h':
- usage();
-
- case 'V':
- ovs_print_version(0, 0);
- exit(EXIT_SUCCESS);
-
- case '?':
- exit(EXIT_FAILURE);
-
- default:
- abort();
- }
- }
- free(short_options);
-}
-
-static void
-usage(void)
-{
- printf("\
-%s: Open vSwitch flow setup benchmark utility\n\
-usage: %s [OPTIONS] COMMAND [ARG...]\n\
- latency connect many times all at once\n\
- rate measure sustained flow setup rate\n\
- listen accept TCP connections\n\
- help display this help message\n\
-\n\
-Command options:\n\
- -l, --local [IP][:PORTS] use local IP and range of PORTS\n\
- -r, --remote IP[:PORTS] connect to remote IP and PORTS\n\
- -s, --sockets N number of sockets for \"rate\" or \"latency\"\n\
- -b, --batches N number of connection batches for \"latency\"\n\
- -c, --max-rate NPERSEC connection rate limit for \"rate\"\n\
- -T, --timeout MAXSECS max number of seconds to run for \"rate\"\n\
-\n\
-Other options:\n\
- -h, --help display this help message\n\
- -V, --version display version information\n",
- program_name, program_name);
- exit(EXIT_SUCCESS);
-}
-
-static void
-cmd_listen(struct ovs_cmdl_context *ctx OVS_UNUSED)
-{
- struct pollfd *fds;
- int n_fds;
- int port;
- int i;
-
- if (!local_min_port && !local_max_port) {
- local_min_port = local_max_port = DEFAULT_PORT;
- }
- fds = xmalloc((1 + local_max_port - local_min_port) * sizeof *fds);
- n_fds = 0;
- for (port = local_min_port; port <= local_max_port; port++) {
- struct sockaddr_in sin;
- unsigned int yes = 1;
- int error;
- int fd;
-
- /* Create socket, set SO_REUSEADDR. */
- fd = socket(AF_INET, SOCK_STREAM, 0);
- if (fd < 0) {
- ovs_fatal(errno, "failed to create socket");
- }
- error = set_nonblocking(fd);
- if (error) {
- ovs_fatal(error, "failed to set non-blocking mode");
- }
- if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof yes) < 0) {
- ovs_fatal(errno, "setsockopt(SO_REUSEADDR) failed");
- }
-
- /* Bind. */
- sin.sin_family = AF_INET;
- sin.sin_addr = remote_addr;
- sin.sin_port = htons(port);
- if (bind(fd, (struct sockaddr *) &sin, sizeof sin) < 0) {
- ovs_fatal(errno, "bind failed");
- }
-
- /* Listen. */
- if (listen(fd, 10000) < 0) {
- ovs_fatal(errno, "listen failed");
- }
-
- fds[n_fds].fd = fd;
- fds[n_fds].events = POLLIN;
- n_fds++;
- }
-
- for (;;) {
- int retval;
-
- retval = do_poll(fds, n_fds, -1);
- if (retval < 0) {
- ovs_fatal(errno, "poll failed");
- }
-
- for (i = 0; i < n_fds; i++) {
- if (fds[i].revents & POLLIN) {
- int newfd;
-
- do {
- newfd = accept(fds[i].fd, NULL, NULL);
- } while (newfd < 0 && errno == EINTR);
-
- if (newfd >= 0) {
- close(newfd);
- } else if (errno != EAGAIN) {
- ovs_fatal(errno, "accept failed");
- }
- }
- }
- }
-}
-
-/* Increments '*value' within the range 'min...max' inclusive. Returns true
- * if '*value' wraps around to 'min', otherwise false. */
-static bool
-increment(unsigned short int *value,
- unsigned short int min, unsigned short int max)
-{
- if (*value < max) {
- ++*value;
- return false;
- } else {
- *value = min;
- return true;
- }
-}
-
-static void
-next_ports(unsigned short int *local_port, unsigned short int *remote_port)
-{
- if (increment(local_port, local_min_port, local_max_port)) {
- increment(remote_port, remote_min_port, remote_max_port);
- }
-}
-
-static void
-bind_local_port(int fd, unsigned short int *local_port,
- unsigned short int *remote_port)
-{
- int error;
-
- if (!local_min_port && !local_max_port) {
- next_ports(local_port, remote_port);
- return;
- }
-
- do {
- struct sockaddr_in local;
-
- memset(&local, 0, sizeof local);
- local.sin_family = AF_INET;
- local.sin_addr = local_addr;
- local.sin_port = htons(*local_port);
- error = (bind(fd, (struct sockaddr *) &local, sizeof local) < 0
- ? errno : 0);
- next_ports(local_port, remote_port);
- } while (error == EADDRINUSE || error == EINTR);
- if (error) {
- ovs_fatal(error, "bind failed");
- }
-}
-
-static void
-cmd_rate(struct ovs_cmdl_context *ctx OVS_UNUSED)
-{
- unsigned short int local_port;
- unsigned short int remote_port;
- unsigned int completed = 0;
- unsigned int failures = 0;
- long long int start, prev;
- struct pollfd *fds;
- int n_fds;
-
- if (!remote_addr.s_addr) {
- ovs_fatal(0, "remote address must be specified with -r or --remote");
- }
- if (!remote_min_port && !remote_max_port) {
- remote_min_port = remote_max_port = DEFAULT_PORT;
- }
-
- local_port = local_min_port;
- remote_port = remote_min_port;
- fds = xmalloc(n_sockets * sizeof *fds);
- n_fds = 0;
- start = prev = time_in_msec();
- for (;;) {
- long long int now;
- long long int may_open;
- int delay;
- int retval;
- int j;
-
- if (max_rate > 0) {
- long long int cur_total = completed + n_fds;
- long long int max_total = (time_in_msec() - start) * (max_rate / 1000.0);
- if (max_total > cur_total) {
- may_open = MIN(n_sockets, max_total - cur_total);
- } else {
- may_open = 0;
- }
- delay = 1000.0 / max_rate;
- } else {
- may_open = n_sockets;
- delay = 1000;
- }
-
- while (may_open-- > 0 && n_fds < n_sockets) {
- struct sockaddr_in remote;
- int error;
- int fd;
-
- fd = socket(AF_INET, SOCK_STREAM, 0);
- if (fd < 0) {
- ovs_fatal(errno, "socket failed");
- }
-
- error = set_nonblocking(fd);
- if (error) {
- ovs_fatal(error, "set_nonblocking failed");
- }
-
- bind_local_port(fd, &local_port, &remote_port);
-
- memset(&remote, 0, sizeof remote);
- remote.sin_family = AF_INET;
- remote.sin_addr = remote_addr;
- remote.sin_port = htons(remote_port);
- if (connect(fd, (struct sockaddr *) &remote, sizeof remote) < 0) {
- if (errno == EINPROGRESS) {
- fds[n_fds].fd = fd;
- fds[n_fds].events = POLLOUT;
- fds[n_fds].revents = 0;
- n_fds++;
- } else if (errno != ECONNREFUSED) {
- ovs_fatal(errno, "connect");
- }
- } else {
- /* Success, I guess. */
- shutdown(fd, 2);
- close(fd);
- completed++;
- }
- }
-
- if (n_fds == n_sockets) {
- delay = 1000;
- }
-
- retval = do_poll(fds, n_fds, delay);
- if (retval < 0) {
- ovs_fatal(errno, "poll");
- }
-
- for (j = 0; j < n_fds; ) {
- if (fds[j].revents) {
- if (fds[j].revents & POLLERR) {
- failures++;
- }
- shutdown(fds[j].fd, 2);
- close(fds[j].fd);
- fds[j] = fds[--n_fds];
- completed++;
- } else {
- j++;
- }
- }
-
- now = time_in_msec();
- if (now >= prev + 1000) {
- long long int elapsed = now - start;
- printf("%.3f s elapsed, %u OK, %u failed, avg %.1f/s\n",
- elapsed / 1000.0, completed - failures, failures,
- completed / (elapsed / 1000.0));
- fflush(stdout);
- prev = now;
-
- if (timeout && elapsed > timeout * 1000LL) {
- break;
- }
- }
- }
- free(fds);
-}
-
-static void
-timer_end(long long int start, bool error,
- int *min, int *max, unsigned long long int *total)
-{
- int elapsed = time_in_msec() - start;
- static int last_elapsed = INT_MIN;
- char c = error ? '!' : '.';
-
- if (last_elapsed != elapsed) {
- if (last_elapsed != INT_MIN) {
- putchar('\n');
- }
- printf("%5d %c", elapsed, c);
- fflush(stdout);
- last_elapsed = elapsed;
- } else {
- putchar(c);
- fflush(stdout);
- }
-
- if (elapsed < *min) {
- *min = elapsed;
- }
- if (elapsed > *max) {
- *max = elapsed;
- }
- *total += elapsed;
-}
-
-static void
-cmd_latency(struct ovs_cmdl_context *ctx OVS_UNUSED)
-{
- unsigned short int local_port;
- unsigned short int remote_port;
- int min = INT_MAX;
- int max = 0;
- unsigned long long int total = 0;
- int i;
-
- if (!remote_addr.s_addr) {
- ovs_fatal(0, "remote address must be specified with -r or --rate");
- }
- if (!remote_min_port && !remote_max_port) {
- remote_min_port = remote_max_port = DEFAULT_PORT;
- }
-
- local_port = local_min_port;
- remote_port = remote_min_port;
- for (i = 0; i < n_batches; i++) {
- struct pollfd fds[MAX_SOCKETS];
- long long int start;
- int n_fds;
- int j;
-
- start = time_in_msec();
- n_fds = 0;
- for (j = 0; j < n_sockets; j++) {
- struct sockaddr_in remote;
- int error;
- int fd;
-
- fd = socket(AF_INET, SOCK_STREAM, 0);
- if (fd < 0) {
- ovs_fatal(errno, "socket failed");
- }
-
- error = set_nonblocking(fd);
- if (error) {
- ovs_fatal(error, "set_nonblocking failed");
- }
-
- bind_local_port(fd, &local_port, &remote_port);
-
- memset(&remote, 0, sizeof remote);
- remote.sin_family = AF_INET;
- remote.sin_addr = remote_addr;
- remote.sin_port = htons(remote_port);
- if (connect(fd, (struct sockaddr *) &remote, sizeof remote) < 0) {
- if (errno == EINPROGRESS) {
- fds[n_fds].fd = fd;
- fds[n_fds].events = POLLOUT;
- fds[n_fds].revents = 0;
- n_fds++;
- } else if (errno != ECONNREFUSED) {
- ovs_fatal(errno, "connect");
- }
- } else {
- /* Success, I guess. */
- close(fd);
- timer_end(start, 0, &min, &max, &total);
- }
- }
-
- while (n_fds > 0) {
- int retval;
-
- retval = do_poll(fds, n_fds, -1);
- if (retval < 0) {
- ovs_fatal(errno, "poll");
- }
-
- for (j = 0; j < n_fds; ) {
- if (fds[j].revents) {
- timer_end(start,
- fds[j].revents & (POLLERR|POLLHUP) ? 1 : 0,
- &min, &max, &total);
- close(fds[j].fd);
- fds[j] = fds[--n_fds];
- } else {
- j++;
- }
- }
- }
- putchar('\n');
- }
-
- printf("min %d ms, max %d ms, avg %llu ms\n",
- min, max, total / (1ULL * n_sockets * n_batches));
-}
-
-static void
-cmd_help(struct ovs_cmdl_context *ctx OVS_UNUSED)
-{
- usage();
-}
-
-static const struct ovs_cmdl_command all_commands[] = {
- { "listen", NULL, 0, 0, cmd_listen },
- { "rate", NULL, 0, 0, cmd_rate },
- { "latency", NULL, 0, 0, cmd_latency },
- { "help", NULL, 0, 0, cmd_help },
- { NULL, NULL, 0, 0, NULL },
-};
-
-static const struct ovs_cmdl_command *get_all_commands(void)
-{
- return all_commands;
-}
projects / cascardo / ovs.git / blobdiff