5 #include <sys/socket.h>
6 #include <sys/sysctl.h>
8 #include <sys/usched.h>
11 #include <arpa/inet.h>
12 #include <netinet/in.h>
22 static void mainloop(const struct sockaddr_in *, int, int, long, u_long *,
29 usage(const char *cmd)
31 fprintf(stderr, "%s -4 inet4 [-4 inet4_1] -p port "
32 "[-i n_instance] [-c conn_max] [-l duration] [-u] [-B]\n", cmd);
37 main(int argc, char *argv[])
39 struct sockaddr_in *in, *tmp;
40 int opt, ninst, nconn, i, in_max, in_cnt, do_udp;
46 prm_len = sizeof(cpucnt);
47 if (sysctlbyname("hw.ncpu", &cpucnt, &prm_len, NULL, 0) != 0)
48 err(2, "sysctl hw.ncpu failed");
57 in = calloc(in_max, sizeof(struct sockaddr_in));
59 err(1, "calloc failed");
62 while ((opt = getopt(argc, argv, "4:Bc:i:l:p:u")) != -1) {
65 if (in_cnt >= in_max) {
66 struct sockaddr_in *old_in = in;
67 int old_in_max = in_max;
70 in = calloc(in_max, sizeof(struct sockaddr_in));
72 err(1, "calloc failed");
75 old_in_max * sizeof(struct sockaddr_in));
80 if (inet_pton(AF_INET, optarg, &tmp->sin_addr) <= 0) {
81 fprintf(stderr, "invalid inet address %s\n",
101 dur = strtol(optarg, NULL, 10);
105 port = htons(atoi(optarg));
117 if (ninst < 1 || dur < 1 || nconn < 1 || port == 0 || in_cnt == 0)
120 for (i = 0; i < in_cnt; ++i) {
122 tmp->sin_family = AF_INET;
123 tmp->sin_port = port;
126 result = mmap(NULL, ninst * sizeof(u_long), PROT_READ | PROT_WRITE,
127 MAP_ANON | MAP_SHARED, -1, 0);
128 if (result == MAP_FAILED)
129 err(1, "mmap failed");
130 memset(result, 0, ninst * sizeof(u_long));
132 for (i = 0; i < ninst; ++i) {
137 mainloop(in, in_cnt, nconn, dur, &result[i], do_udp, i);
139 } else if (pid < 0) {
140 err(1, "fork failed");
144 for (i = 0; i < ninst; ++i) {
147 pid = waitpid(-1, NULL, 0);
149 err(1, "waitpid failed");
153 for (i = 0; i < ninst; ++i)
155 printf("%lu\n", sum);
161 udp_send(const struct sockaddr_in *in)
166 s = socket(AF_INET, SOCK_DGRAM, 0);
168 warn("socket DGRAM failed");
172 if (connect(s, (const struct sockaddr *)in, sizeof(*in)) < 0) {
173 warn("connect DGRAM failed");
177 write(s, d, sizeof(d));
183 mainloop(const struct sockaddr_in *in, int in_cnt, int nconn_max,
184 long dur, u_long *res, int do_udp, int inst)
186 struct timespec start, end;
187 struct kevent *evt_change0, *evt;
188 int kq, nchange = 0, nconn = 0, nevt_max;
192 #ifndef SOCK_NONBLOCK
197 int cpu = inst % cpucnt;
199 usched_set(getpid(), USCHED_SET_CPU, &cpu, sizeof(cpu));
204 err(1, "kqueue failed");
206 nevt_max = nconn_max + 1; /* timer */
208 evt_change0 = malloc(nevt_max * sizeof(struct kevent));
209 if (evt_change0 == NULL)
210 err(1, "malloc evt_change failed");
212 evt = malloc(nevt_max * sizeof(struct kevent));
214 err(1, "malloc evt failed");
216 EV_SET(&evt_change0[0], 0, EVFILT_TIMER, EV_ADD | EV_ONESHOT, 0,
220 clock_gettime(CLOCK_MONOTONIC_PRECISE, &start);
222 struct kevent *evt_change = NULL;
225 while (nconn < nconn_max) {
226 const struct sockaddr_in *tmp;
229 tmp = &in[in_idx % in_cnt];
235 #ifndef SOCK_NONBLOCK
236 s = socket(AF_INET, SOCK_STREAM, 0);
238 err(1, "socket failed");
240 if (ioctl(s, FIONBIO, &nblock, sizeof(nblock)) < 0)
241 err(1, "ioctl failed");
243 s = socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK, 0);
245 err(1, "socket failed");
248 n = connect(s, (const struct sockaddr *)tmp,
257 if (error != EINPROGRESS)
258 errc(1, error, "connect failed");
262 if (nchange >= nevt_max) {
263 fprintf(stderr, "invalid nchange %d, max %d\n",
267 EV_SET(&evt_change0[nchange], s, EVFILT_WRITE, EV_ADD,
273 evt_change = evt_change0;
275 n = kevent(kq, evt_change, nchange, evt, nevt_max, NULL);
277 err(1, "kevent failed");
280 for (i = 0; i < n; ++i) {
281 struct kevent *e = &evt[i];
283 if (e->filter == EVFILT_TIMER) {
288 if ((e->flags & EV_EOF) && e->fflags) {
289 /* Error, don't count */
299 clock_gettime(CLOCK_MONOTONIC_PRECISE, &end);
301 timespecsub(&end, &start, &end);
302 time_us = ((double)end.tv_sec * 1000000.0) +
303 ((double)end.tv_nsec / 1000.0);
305 *res = ((double)count * 1000000.0) / time_us;