11 #include <sys/socket.h>
12 #include <netinet/in.h>
13 #include <arpa/inet.h>
19 #include "crc/crc32.h"
23 struct flist_head list;
24 struct sockaddr_in addr;
43 static FLIST_HEAD(client_list);
45 static int handle_client(struct fio_client *client);
47 static struct fio_client *find_client_by_fd(int fd)
49 struct fio_client *client;
50 struct flist_head *entry;
52 flist_for_each(entry, &client_list) {
53 client = flist_entry(entry, struct fio_client, list);
62 static struct fio_client *find_client_by_name(const char *name)
64 struct fio_client *client;
65 struct flist_head *entry;
67 flist_for_each(entry, &client_list) {
68 client = flist_entry(entry, struct fio_client, list);
70 if (!strcmp(name, client->hostname))
77 static void remove_client(struct fio_client *client)
79 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
80 flist_del(&client->list);
83 free(client->hostname);
90 static int __fio_client_add_cmd_option(struct fio_client *client,
95 if (client->argc == FIO_NET_CMD_JOBLINE_ARGV) {
96 log_err("fio: max cmd line number reached.\n");
97 log_err("fio: cmd line <%s> has been ignored.\n", opt);
101 index = client->argc++;
102 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
103 client->argv[index] = strdup(opt);
104 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
108 int fio_client_add_cmd_option(const char *hostname, const char *opt)
110 struct fio_client *client;
112 if (!hostname || !opt)
115 client = find_client_by_name(hostname);
117 log_err("fio: unknown client %s\n", hostname);
121 return __fio_client_add_cmd_option(client, opt);
124 void fio_client_add(const char *hostname)
126 struct fio_client *client;
128 dprint(FD_NET, "client: added <%s>\n", hostname);
129 client = malloc(sizeof(*client));
130 memset(client, 0, sizeof(*client));
132 client->hostname = strdup(hostname);
135 __fio_client_add_cmd_option(client, "fio");
137 flist_add(&client->list, &client_list);
141 static int fio_client_connect(struct fio_client *client)
145 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
147 memset(&client->addr, 0, sizeof(client->addr));
148 client->addr.sin_family = AF_INET;
149 client->addr.sin_port = htons(fio_net_port);
151 if (inet_aton(client->hostname, &client->addr.sin_addr) != 1) {
152 struct hostent *hent;
154 hent = gethostbyname(client->hostname);
156 log_err("fio: gethostbyname: %s\n", strerror(errno));
157 log_err("fio: failed looking up hostname %s\n",
162 memcpy(&client->addr.sin_addr, hent->h_addr, 4);
165 fd = socket(AF_INET, SOCK_STREAM, 0);
167 log_err("fio: socket: %s\n", strerror(errno));
171 if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) {
172 log_err("fio: connect: %s\n", strerror(errno));
173 log_err("fio: failed to connect to %s\n", client->hostname);
178 client->state = Client_connected;
182 void fio_clients_terminate(void)
184 struct flist_head *entry;
185 struct fio_client *client;
187 dprint(FD_NET, "client: terminate clients\n");
189 flist_for_each(entry, &client_list) {
190 client = flist_entry(entry, struct fio_client, list);
192 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0);
196 static void sig_int(int sig)
198 dprint(FD_NET, "client: got sign %d\n", sig);
199 fio_clients_terminate();
202 static void client_signal_handler(void)
204 struct sigaction act;
206 memset(&act, 0, sizeof(act));
207 act.sa_handler = sig_int;
208 act.sa_flags = SA_RESTART;
209 sigaction(SIGINT, &act, NULL);
211 memset(&act, 0, sizeof(act));
212 act.sa_handler = sig_int;
213 act.sa_flags = SA_RESTART;
214 sigaction(SIGTERM, &act, NULL);
217 static void probe_client(struct fio_client *client)
219 dprint(FD_NET, "client: send probe\n");
221 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0);
222 handle_client(client);
225 static int send_client_cmd_line(struct fio_client *client)
227 struct cmd_line_pdu *pdu;
230 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
232 pdu = malloc(sizeof(*pdu));
233 for (i = 0; i < client->argc; i++)
234 strcpy((char *) pdu->argv[i], client->argv[i]);
236 pdu->argc = cpu_to_le16(client->argc);
237 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, sizeof(*pdu));
242 int fio_clients_connect(void)
244 struct fio_client *client;
245 struct flist_head *entry, *tmp;
248 dprint(FD_NET, "client: connect all\n");
250 client_signal_handler();
252 flist_for_each_safe(entry, tmp, &client_list) {
253 client = flist_entry(entry, struct fio_client, list);
255 ret = fio_client_connect(client);
257 remove_client(client);
261 probe_client(client);
263 if (client->argc > 1)
264 send_client_cmd_line(client);
271 * Send file contents to server backend. We could use sendfile(), but to remain
272 * more portable lets just read/write the darn thing.
274 static int fio_client_send_ini(struct fio_client *client, const char *filename)
281 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
283 fd = open(filename, O_RDONLY);
285 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
289 if (fstat(fd, &sb) < 0) {
290 log_err("fio: job file stat: %s\n", strerror(errno));
294 buf = malloc(sb.st_size);
299 ret = read(fd, p, len);
308 else if (errno == EAGAIN || errno == EINTR)
313 log_err("fio: failed reading job file %s\n", filename);
317 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size);
322 int fio_clients_send_ini(const char *filename)
324 struct fio_client *client;
325 struct flist_head *entry, *tmp;
327 flist_for_each_safe(entry, tmp, &client_list) {
328 client = flist_entry(entry, struct fio_client, list);
330 if (fio_client_send_ini(client, filename))
331 remove_client(client);
337 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
339 dst->max_val = le64_to_cpu(src->max_val);
340 dst->min_val = le64_to_cpu(src->min_val);
341 dst->samples = le64_to_cpu(src->samples);
344 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
346 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
347 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
350 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
354 dst->error = le32_to_cpu(src->error);
355 dst->groupid = le32_to_cpu(src->groupid);
356 dst->pid = le32_to_cpu(src->pid);
357 dst->members = le32_to_cpu(src->members);
359 for (i = 0; i < 2; i++) {
360 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
361 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
362 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
363 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
366 dst->usr_time = le64_to_cpu(src->usr_time);
367 dst->sys_time = le64_to_cpu(src->sys_time);
368 dst->ctx = le64_to_cpu(src->ctx);
369 dst->minf = le64_to_cpu(src->minf);
370 dst->majf = le64_to_cpu(src->majf);
371 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
373 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
374 fio_fp64_t *fps = &src->percentile_list[i];
375 fio_fp64_t *fpd = &dst->percentile_list[i];
377 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
380 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
381 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
382 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
383 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
386 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
387 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
388 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
391 for (i = 0; i < 2; i++)
392 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
393 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
395 for (i = 0; i < 3; i++) {
396 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
397 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
400 dst->total_submit = le64_to_cpu(src->total_submit);
401 dst->total_complete = le64_to_cpu(src->total_complete);
403 for (i = 0; i < 2; i++) {
404 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
405 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
408 dst->total_run_time = le64_to_cpu(src->total_run_time);
409 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
410 dst->total_err_count = le64_to_cpu(src->total_err_count);
411 dst->first_error = le32_to_cpu(src->first_error);
412 dst->kb_base = le32_to_cpu(src->kb_base);
415 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
419 for (i = 0; i < 2; i++) {
420 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
421 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
422 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
423 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
424 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
425 dst->agg[i] = le64_to_cpu(src->agg[i]);
428 dst->kb_base = le32_to_cpu(src->kb_base);
429 dst->groupid = le32_to_cpu(src->groupid);
432 static void handle_ts(struct fio_net_cmd *cmd)
434 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
436 convert_ts(&p->ts, &p->ts);
437 convert_gs(&p->rs, &p->rs);
439 show_thread_status(&p->ts, &p->rs);
442 static void handle_gs(struct fio_net_cmd *cmd)
444 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
447 show_group_stats(gs);
450 static void handle_eta(struct fio_net_cmd *cmd)
452 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
455 je->nr_running = le32_to_cpu(je->nr_running);
456 je->nr_ramp = le32_to_cpu(je->nr_ramp);
457 je->nr_pending = le32_to_cpu(je->nr_pending);
458 je->files_open = le32_to_cpu(je->files_open);
459 je->m_rate = le32_to_cpu(je->m_rate);
460 je->t_rate = le32_to_cpu(je->t_rate);
461 je->m_iops = le32_to_cpu(je->m_iops);
462 je->t_iops = le32_to_cpu(je->t_iops);
464 for (i = 0; i < 2; i++) {
465 je->rate[i] = le32_to_cpu(je->rate[i]);
466 je->iops[i] = le32_to_cpu(je->iops[i]);
469 je->elapsed_sec = le32_to_cpu(je->nr_running);
470 je->eta_sec = le64_to_cpu(je->eta_sec);
472 display_thread_status(je);
475 static void handle_probe(struct fio_net_cmd *cmd)
477 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
479 log_info("Probe: hostname=%s, be=%u, fio ver %u.%u.%u\n",
480 probe->hostname, probe->bigendian, probe->fio_major,
481 probe->fio_minor, probe->fio_patch);
484 static int handle_client(struct fio_client *client)
486 struct fio_net_cmd *cmd;
488 dprint(FD_NET, "client: handle %s\n", client->hostname);
490 cmd = fio_net_recv_cmd(client->fd);
494 dprint(FD_NET, "client: got cmd op %d from %s\n",
495 cmd->opcode, client->hostname);
497 switch (cmd->opcode) {
498 case FIO_NET_CMD_QUIT:
499 remove_client(client);
502 case FIO_NET_CMD_TEXT: {
503 const char *buf = (const char *) cmd->payload;
506 if (!client->skip_newline)
507 fprintf(f_out, "<%s> ", client->hostname);
508 ret = fwrite(buf, cmd->pdu_len, 1, f_out);
510 client->skip_newline = strchr(buf, '\n') == NULL;
522 case FIO_NET_CMD_ETA:
526 case FIO_NET_CMD_PROBE:
530 case FIO_NET_CMD_START:
531 client->state = Client_started;
534 case FIO_NET_CMD_STOP:
535 client->state = Client_stopped;
539 log_err("fio: unknown client op: %d\n", cmd->opcode);
547 int fio_handle_clients(void)
549 struct fio_client *client;
550 struct flist_head *entry;
554 pfds = malloc(nr_clients * sizeof(struct pollfd));
556 while (!exit_backend && nr_clients) {
558 flist_for_each(entry, &client_list) {
559 client = flist_entry(entry, struct fio_client, list);
561 pfds[i].fd = client->fd;
562 pfds[i].events = POLLIN;
566 assert(i == nr_clients);
569 ret = poll(pfds, nr_clients, 100);
573 log_err("fio: poll clients: %s\n", strerror(errno));
579 for (i = 0; i < nr_clients; i++) {
580 if (!(pfds[i].revents & POLLIN))
583 client = find_client_by_fd(pfds[i].fd);
585 log_err("fio: unknown client\n");
588 if (!handle_client(client)) {
589 log_info("client: host=%s disconnected\n",
591 remove_client(client);