11 #include <sys/socket.h>
12 #include <netinet/in.h>
13 #include <arpa/inet.h>
23 struct flist_head list;
24 struct flist_head fd_hash_list;
25 struct flist_head name_hash_list;
26 struct sockaddr_in addr;
45 static FLIST_HEAD(client_list);
47 #define FIO_CLIENT_HASH_BITS 7
48 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
49 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
50 static struct flist_head client_fd_hash[FIO_CLIENT_HASH_SZ];
51 static struct flist_head client_name_hash[FIO_CLIENT_HASH_SZ];
53 static int handle_client(struct fio_client *client);
55 static void fio_client_add_fd_hash(struct fio_client *client)
57 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
59 bucket &= FIO_CLIENT_HASH_MASK;
60 flist_add(&client->fd_hash_list, &client_fd_hash[bucket]);
63 static void fio_client_remove_fd_hash(struct fio_client *client)
65 if (!flist_empty(&client->fd_hash_list))
66 flist_del_init(&client->fd_hash_list);
69 static void fio_client_add_name_hash(struct fio_client *client)
71 int bucket = jhash(client->hostname, strlen(client->hostname), 0);
73 bucket &= FIO_CLIENT_HASH_MASK;
74 flist_add(&client->name_hash_list, &client_name_hash[bucket]);
77 static void fio_client_remove_name_hash(struct fio_client *client)
79 if (!flist_empty(&client->name_hash_list))
80 flist_del_init(&client->name_hash_list);
83 static void fio_init fio_client_hash_init(void)
87 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++) {
88 INIT_FLIST_HEAD(&client_fd_hash[i]);
89 INIT_FLIST_HEAD(&client_name_hash[i]);
93 static struct fio_client *find_client_by_fd(int fd)
95 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
96 struct fio_client *client;
97 struct flist_head *entry;
99 flist_for_each(entry, &client_fd_hash[bucket]) {
100 client = flist_entry(entry, struct fio_client, fd_hash_list);
102 if (client->fd == fd)
109 static struct fio_client *find_client_by_name(const char *name)
111 int bucket = jhash(name, strlen(name), 0) & FIO_CLIENT_HASH_BITS;
112 struct fio_client *client;
113 struct flist_head *entry;
115 flist_for_each(entry, &client_name_hash[bucket]) {
116 client = flist_entry(entry, struct fio_client, name_hash_list);
118 if (!strcmp(name, client->hostname))
125 static void remove_client(struct fio_client *client)
127 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
128 flist_del(&client->list);
130 fio_client_remove_fd_hash(client);
131 fio_client_remove_name_hash(client);
133 free(client->hostname);
141 static int __fio_client_add_cmd_option(struct fio_client *client,
146 if (client->argc == FIO_NET_CMD_JOBLINE_ARGV) {
147 log_err("fio: max cmd line number reached.\n");
148 log_err("fio: cmd line <%s> has been ignored.\n", opt);
152 index = client->argc++;
153 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
154 client->argv[index] = strdup(opt);
155 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
159 int fio_client_add_cmd_option(const char *hostname, const char *opt)
161 struct fio_client *client;
163 if (!hostname || !opt)
166 client = find_client_by_name(hostname);
168 log_err("fio: unknown client %s\n", hostname);
172 return __fio_client_add_cmd_option(client, opt);
175 void fio_client_add(const char *hostname)
177 struct fio_client *client;
179 dprint(FD_NET, "client: added <%s>\n", hostname);
180 client = malloc(sizeof(*client));
181 memset(client, 0, sizeof(*client));
183 INIT_FLIST_HEAD(&client->list);
184 INIT_FLIST_HEAD(&client->fd_hash_list);
185 INIT_FLIST_HEAD(&client->name_hash_list);
187 client->hostname = strdup(hostname);
190 fio_client_add_name_hash(client);
192 __fio_client_add_cmd_option(client, "fio");
194 flist_add(&client->list, &client_list);
198 static int fio_client_connect(struct fio_client *client)
202 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
204 memset(&client->addr, 0, sizeof(client->addr));
205 client->addr.sin_family = AF_INET;
206 client->addr.sin_port = htons(fio_net_port);
208 if (inet_aton(client->hostname, &client->addr.sin_addr) != 1) {
209 struct hostent *hent;
211 hent = gethostbyname(client->hostname);
213 log_err("fio: gethostbyname: %s\n", strerror(errno));
214 log_err("fio: failed looking up hostname %s\n",
219 memcpy(&client->addr.sin_addr, hent->h_addr, 4);
222 fd = socket(AF_INET, SOCK_STREAM, 0);
224 log_err("fio: socket: %s\n", strerror(errno));
228 if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) {
229 log_err("fio: connect: %s\n", strerror(errno));
230 log_err("fio: failed to connect to %s\n", client->hostname);
235 fio_client_add_fd_hash(client);
236 client->state = Client_connected;
240 void fio_clients_terminate(void)
242 struct flist_head *entry;
243 struct fio_client *client;
245 dprint(FD_NET, "client: terminate clients\n");
247 flist_for_each(entry, &client_list) {
248 client = flist_entry(entry, struct fio_client, list);
250 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0);
254 static void sig_int(int sig)
256 dprint(FD_NET, "client: got sign %d\n", sig);
257 fio_clients_terminate();
260 static void client_signal_handler(void)
262 struct sigaction act;
264 memset(&act, 0, sizeof(act));
265 act.sa_handler = sig_int;
266 act.sa_flags = SA_RESTART;
267 sigaction(SIGINT, &act, NULL);
269 memset(&act, 0, sizeof(act));
270 act.sa_handler = sig_int;
271 act.sa_flags = SA_RESTART;
272 sigaction(SIGTERM, &act, NULL);
275 static void probe_client(struct fio_client *client)
277 dprint(FD_NET, "client: send probe\n");
279 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0);
280 handle_client(client);
283 static int send_client_cmd_line(struct fio_client *client)
285 struct cmd_line_pdu *pdu;
288 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
290 pdu = malloc(sizeof(*pdu));
291 for (i = 0; i < client->argc; i++)
292 strcpy((char *) pdu->argv[i], client->argv[i]);
294 pdu->argc = cpu_to_le16(client->argc);
295 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, sizeof(*pdu));
300 int fio_clients_connect(void)
302 struct fio_client *client;
303 struct flist_head *entry, *tmp;
306 dprint(FD_NET, "client: connect all\n");
308 client_signal_handler();
310 flist_for_each_safe(entry, tmp, &client_list) {
311 client = flist_entry(entry, struct fio_client, list);
313 ret = fio_client_connect(client);
315 remove_client(client);
319 probe_client(client);
321 if (client->argc > 1)
322 send_client_cmd_line(client);
329 * Send file contents to server backend. We could use sendfile(), but to remain
330 * more portable lets just read/write the darn thing.
332 static int fio_client_send_ini(struct fio_client *client, const char *filename)
339 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
341 fd = open(filename, O_RDONLY);
343 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
347 if (fstat(fd, &sb) < 0) {
348 log_err("fio: job file stat: %s\n", strerror(errno));
352 buf = malloc(sb.st_size);
357 ret = read(fd, p, len);
366 else if (errno == EAGAIN || errno == EINTR)
371 log_err("fio: failed reading job file %s\n", filename);
375 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size);
380 int fio_clients_send_ini(const char *filename)
382 struct fio_client *client;
383 struct flist_head *entry, *tmp;
385 flist_for_each_safe(entry, tmp, &client_list) {
386 client = flist_entry(entry, struct fio_client, list);
388 if (fio_client_send_ini(client, filename))
389 remove_client(client);
395 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
397 dst->max_val = le64_to_cpu(src->max_val);
398 dst->min_val = le64_to_cpu(src->min_val);
399 dst->samples = le64_to_cpu(src->samples);
402 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
404 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
405 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
408 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
412 dst->error = le32_to_cpu(src->error);
413 dst->groupid = le32_to_cpu(src->groupid);
414 dst->pid = le32_to_cpu(src->pid);
415 dst->members = le32_to_cpu(src->members);
417 for (i = 0; i < 2; i++) {
418 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
419 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
420 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
421 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
424 dst->usr_time = le64_to_cpu(src->usr_time);
425 dst->sys_time = le64_to_cpu(src->sys_time);
426 dst->ctx = le64_to_cpu(src->ctx);
427 dst->minf = le64_to_cpu(src->minf);
428 dst->majf = le64_to_cpu(src->majf);
429 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
431 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
432 fio_fp64_t *fps = &src->percentile_list[i];
433 fio_fp64_t *fpd = &dst->percentile_list[i];
435 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
438 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
439 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
440 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
441 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
444 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
445 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
446 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
449 for (i = 0; i < 2; i++)
450 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
451 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
453 for (i = 0; i < 3; i++) {
454 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
455 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
458 dst->total_submit = le64_to_cpu(src->total_submit);
459 dst->total_complete = le64_to_cpu(src->total_complete);
461 for (i = 0; i < 2; i++) {
462 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
463 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
466 dst->total_run_time = le64_to_cpu(src->total_run_time);
467 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
468 dst->total_err_count = le64_to_cpu(src->total_err_count);
469 dst->first_error = le32_to_cpu(src->first_error);
470 dst->kb_base = le32_to_cpu(src->kb_base);
473 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
477 for (i = 0; i < 2; i++) {
478 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
479 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
480 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
481 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
482 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
483 dst->agg[i] = le64_to_cpu(src->agg[i]);
486 dst->kb_base = le32_to_cpu(src->kb_base);
487 dst->groupid = le32_to_cpu(src->groupid);
490 static void handle_ts(struct fio_net_cmd *cmd)
492 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
494 convert_ts(&p->ts, &p->ts);
495 convert_gs(&p->rs, &p->rs);
497 show_thread_status(&p->ts, &p->rs);
500 static void handle_gs(struct fio_net_cmd *cmd)
502 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
505 show_group_stats(gs);
508 static void handle_eta(struct fio_net_cmd *cmd)
510 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
513 je->nr_running = le32_to_cpu(je->nr_running);
514 je->nr_ramp = le32_to_cpu(je->nr_ramp);
515 je->nr_pending = le32_to_cpu(je->nr_pending);
516 je->files_open = le32_to_cpu(je->files_open);
517 je->m_rate = le32_to_cpu(je->m_rate);
518 je->t_rate = le32_to_cpu(je->t_rate);
519 je->m_iops = le32_to_cpu(je->m_iops);
520 je->t_iops = le32_to_cpu(je->t_iops);
522 for (i = 0; i < 2; i++) {
523 je->rate[i] = le32_to_cpu(je->rate[i]);
524 je->iops[i] = le32_to_cpu(je->iops[i]);
527 je->elapsed_sec = le32_to_cpu(je->nr_running);
528 je->eta_sec = le64_to_cpu(je->eta_sec);
530 display_thread_status(je);
533 static void handle_probe(struct fio_net_cmd *cmd)
535 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
537 log_info("Probe: hostname=%s, be=%u, fio ver %u.%u.%u\n",
538 probe->hostname, probe->bigendian, probe->fio_major,
539 probe->fio_minor, probe->fio_patch);
542 static int handle_client(struct fio_client *client)
544 struct fio_net_cmd *cmd;
546 dprint(FD_NET, "client: handle %s\n", client->hostname);
548 cmd = fio_net_recv_cmd(client->fd);
552 dprint(FD_NET, "client: got cmd op %d from %s\n",
553 cmd->opcode, client->hostname);
555 switch (cmd->opcode) {
556 case FIO_NET_CMD_QUIT:
557 remove_client(client);
560 case FIO_NET_CMD_TEXT: {
561 const char *buf = (const char *) cmd->payload;
564 if (!client->skip_newline)
565 fprintf(f_out, "<%s> ", client->hostname);
566 ret = fwrite(buf, cmd->pdu_len, 1, f_out);
568 client->skip_newline = strchr(buf, '\n') == NULL;
580 case FIO_NET_CMD_ETA:
584 case FIO_NET_CMD_PROBE:
588 case FIO_NET_CMD_START:
589 client->state = Client_started;
592 case FIO_NET_CMD_STOP:
593 client->state = Client_stopped;
597 log_err("fio: unknown client op: %d\n", cmd->opcode);
605 int fio_handle_clients(void)
607 struct fio_client *client;
608 struct flist_head *entry;
612 pfds = malloc(nr_clients * sizeof(struct pollfd));
614 while (!exit_backend && nr_clients) {
616 flist_for_each(entry, &client_list) {
617 client = flist_entry(entry, struct fio_client, list);
619 pfds[i].fd = client->fd;
620 pfds[i].events = POLLIN;
624 assert(i == nr_clients);
627 ret = poll(pfds, nr_clients, 100);
631 log_err("fio: poll clients: %s\n", strerror(errno));
637 for (i = 0; i < nr_clients; i++) {
638 if (!(pfds[i].revents & POLLIN))
641 client = find_client_by_fd(pfds[i].fd);
643 log_err("fio: unknown client fd %d\n", pfds[i].fd);
646 if (!handle_client(client)) {
647 log_info("client: host=%s disconnected\n",
649 remove_client(client);