11 #include <sys/socket.h>
13 #include <netinet/in.h>
14 #include <arpa/inet.h>
29 struct flist_head list;
30 struct flist_head hash_list;
31 struct sockaddr_in addr;
32 struct sockaddr_un addr_un;
44 struct flist_head eta_list;
45 struct client_eta *eta_in_flight;
51 static struct timeval eta_tv;
61 static FLIST_HEAD(client_list);
62 static FLIST_HEAD(eta_list);
64 #define FIO_CLIENT_HASH_BITS 7
65 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
66 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
67 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
69 static int handle_client(struct fio_client *client);
70 static void dec_jobs_eta(struct client_eta *eta);
72 static void fio_client_add_hash(struct fio_client *client)
74 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
76 bucket &= FIO_CLIENT_HASH_MASK;
77 flist_add(&client->hash_list, &client_hash[bucket]);
80 static void fio_client_remove_hash(struct fio_client *client)
82 if (!flist_empty(&client->hash_list))
83 flist_del_init(&client->hash_list);
86 static void fio_init fio_client_hash_init(void)
90 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
91 INIT_FLIST_HEAD(&client_hash[i]);
94 static struct fio_client *find_client_by_fd(int fd)
96 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
97 struct fio_client *client;
98 struct flist_head *entry;
100 flist_for_each(entry, &client_hash[bucket]) {
101 client = flist_entry(entry, struct fio_client, hash_list);
103 if (client->fd == fd)
110 static void remove_client(struct fio_client *client)
112 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
113 flist_del(&client->list);
115 fio_client_remove_hash(client);
117 if (!flist_empty(&client->eta_list)) {
118 flist_del_init(&client->eta_list);
119 dec_jobs_eta(client->eta_in_flight);
122 free(client->hostname);
132 static void __fio_client_add_cmd_option(struct fio_client *client,
137 index = client->argc++;
138 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
139 client->argv[index] = strdup(opt);
140 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
143 void fio_client_add_cmd_option(void *cookie, const char *opt)
145 struct fio_client *client = cookie;
150 __fio_client_add_cmd_option(client, opt);
153 int fio_client_add(const char *hostname, void **cookie)
155 struct fio_client *client;
157 client = malloc(sizeof(*client));
158 memset(client, 0, sizeof(*client));
160 INIT_FLIST_HEAD(&client->list);
161 INIT_FLIST_HEAD(&client->hash_list);
162 INIT_FLIST_HEAD(&client->eta_list);
164 if (fio_server_parse_string(hostname, &client->hostname,
165 &client->is_sock, &client->port,
166 &client->addr.sin_addr))
171 __fio_client_add_cmd_option(client, "fio");
173 flist_add(&client->list, &client_list);
175 dprint(FD_NET, "client: added <%s>\n", client->hostname);
180 static int fio_client_connect_ip(struct fio_client *client)
184 client->addr.sin_family = AF_INET;
185 client->addr.sin_port = htons(client->port);
187 fd = socket(AF_INET, SOCK_STREAM, 0);
189 log_err("fio: socket: %s\n", strerror(errno));
193 if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) {
194 log_err("fio: connect: %s\n", strerror(errno));
195 log_err("fio: failed to connect to %s:%u\n", client->hostname,
204 static int fio_client_connect_sock(struct fio_client *client)
206 struct sockaddr_un *addr = &client->addr_un;
210 memset(addr, 0, sizeof(*addr));
211 addr->sun_family = AF_UNIX;
212 strcpy(addr->sun_path, client->hostname);
214 fd = socket(AF_UNIX, SOCK_STREAM, 0);
216 log_err("fio: socket: %s\n", strerror(errno));
220 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
221 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
222 log_err("fio: connect; %s\n", strerror(errno));
230 static int fio_client_connect(struct fio_client *client)
234 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
237 fd = fio_client_connect_sock(client);
239 fd = fio_client_connect_ip(client);
245 fio_client_add_hash(client);
246 client->state = Client_connected;
250 void fio_clients_terminate(void)
252 struct flist_head *entry;
253 struct fio_client *client;
255 dprint(FD_NET, "client: terminate clients\n");
257 flist_for_each(entry, &client_list) {
258 client = flist_entry(entry, struct fio_client, list);
260 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0);
264 static void sig_int(int sig)
266 dprint(FD_NET, "client: got signal %d\n", sig);
267 fio_clients_terminate();
270 static void client_signal_handler(void)
272 struct sigaction act;
274 memset(&act, 0, sizeof(act));
275 act.sa_handler = sig_int;
276 act.sa_flags = SA_RESTART;
277 sigaction(SIGINT, &act, NULL);
279 memset(&act, 0, sizeof(act));
280 act.sa_handler = sig_int;
281 act.sa_flags = SA_RESTART;
282 sigaction(SIGTERM, &act, NULL);
285 static void probe_client(struct fio_client *client)
287 dprint(FD_NET, "client: send probe\n");
289 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0);
290 handle_client(client);
293 static int send_client_cmd_line(struct fio_client *client)
295 struct cmd_single_line_pdu *cslp;
296 struct cmd_line_pdu *clp;
297 unsigned long offset;
303 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
305 lens = malloc(client->argc * sizeof(unsigned int));
308 * Find out how much mem we need
310 for (i = 0, mem = 0; i < client->argc; i++) {
311 lens[i] = strlen(client->argv[i]) + 1;
316 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
318 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
322 offset = sizeof(*clp);
324 for (i = 0; i < client->argc; i++) {
325 uint16_t arg_len = lens[i];
328 strcpy((char *) cslp->text, client->argv[i]);
329 cslp->len = cpu_to_le16(arg_len);
330 offset += sizeof(*cslp) + arg_len;
334 clp->lines = cpu_to_le16(client->argc);
335 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, 0);
340 int fio_clients_connect(void)
342 struct fio_client *client;
343 struct flist_head *entry, *tmp;
346 dprint(FD_NET, "client: connect all\n");
348 client_signal_handler();
350 flist_for_each_safe(entry, tmp, &client_list) {
351 client = flist_entry(entry, struct fio_client, list);
353 ret = fio_client_connect(client);
355 remove_client(client);
359 probe_client(client);
361 if (client->argc > 1)
362 send_client_cmd_line(client);
369 * Send file contents to server backend. We could use sendfile(), but to remain
370 * more portable lets just read/write the darn thing.
372 static int fio_client_send_ini(struct fio_client *client, const char *filename)
379 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
381 fd = open(filename, O_RDONLY);
383 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
387 if (fstat(fd, &sb) < 0) {
388 log_err("fio: job file stat: %s\n", strerror(errno));
393 buf = malloc(sb.st_size);
398 ret = read(fd, p, len);
407 else if (errno == EAGAIN || errno == EINTR)
412 log_err("fio: failed reading job file %s\n", filename);
418 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size, 0);
424 int fio_clients_send_ini(const char *filename)
426 struct fio_client *client;
427 struct flist_head *entry, *tmp;
429 flist_for_each_safe(entry, tmp, &client_list) {
430 client = flist_entry(entry, struct fio_client, list);
432 if (fio_client_send_ini(client, filename))
433 remove_client(client);
439 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
441 dst->max_val = le64_to_cpu(src->max_val);
442 dst->min_val = le64_to_cpu(src->min_val);
443 dst->samples = le64_to_cpu(src->samples);
446 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
448 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
449 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
452 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
456 dst->error = le32_to_cpu(src->error);
457 dst->groupid = le32_to_cpu(src->groupid);
458 dst->pid = le32_to_cpu(src->pid);
459 dst->members = le32_to_cpu(src->members);
461 for (i = 0; i < 2; i++) {
462 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
463 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
464 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
465 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
468 dst->usr_time = le64_to_cpu(src->usr_time);
469 dst->sys_time = le64_to_cpu(src->sys_time);
470 dst->ctx = le64_to_cpu(src->ctx);
471 dst->minf = le64_to_cpu(src->minf);
472 dst->majf = le64_to_cpu(src->majf);
473 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
475 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
476 fio_fp64_t *fps = &src->percentile_list[i];
477 fio_fp64_t *fpd = &dst->percentile_list[i];
479 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
482 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
483 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
484 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
485 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
488 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
489 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
490 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
493 for (i = 0; i < 2; i++)
494 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
495 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
497 for (i = 0; i < 3; i++) {
498 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
499 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
502 dst->total_submit = le64_to_cpu(src->total_submit);
503 dst->total_complete = le64_to_cpu(src->total_complete);
505 for (i = 0; i < 2; i++) {
506 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
507 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
510 dst->total_run_time = le64_to_cpu(src->total_run_time);
511 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
512 dst->total_err_count = le64_to_cpu(src->total_err_count);
513 dst->first_error = le32_to_cpu(src->first_error);
514 dst->kb_base = le32_to_cpu(src->kb_base);
517 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
521 for (i = 0; i < 2; i++) {
522 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
523 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
524 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
525 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
526 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
527 dst->agg[i] = le64_to_cpu(src->agg[i]);
530 dst->kb_base = le32_to_cpu(src->kb_base);
531 dst->groupid = le32_to_cpu(src->groupid);
534 static void handle_ts(struct fio_net_cmd *cmd)
536 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
538 convert_ts(&p->ts, &p->ts);
539 convert_gs(&p->rs, &p->rs);
541 show_thread_status(&p->ts, &p->rs);
544 static void handle_gs(struct fio_net_cmd *cmd)
546 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
549 show_group_stats(gs);
552 static void convert_jobs_eta(struct jobs_eta *je)
556 je->nr_running = le32_to_cpu(je->nr_running);
557 je->nr_ramp = le32_to_cpu(je->nr_ramp);
558 je->nr_pending = le32_to_cpu(je->nr_pending);
559 je->files_open = le32_to_cpu(je->files_open);
560 je->m_rate = le32_to_cpu(je->m_rate);
561 je->t_rate = le32_to_cpu(je->t_rate);
562 je->m_iops = le32_to_cpu(je->m_iops);
563 je->t_iops = le32_to_cpu(je->t_iops);
565 for (i = 0; i < 2; i++) {
566 je->rate[i] = le32_to_cpu(je->rate[i]);
567 je->iops[i] = le32_to_cpu(je->iops[i]);
570 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
571 je->eta_sec = le64_to_cpu(je->eta_sec);
574 static void sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
578 dst->nr_running += je->nr_running;
579 dst->nr_ramp += je->nr_ramp;
580 dst->nr_pending += je->nr_pending;
581 dst->files_open += je->files_open;
582 dst->m_rate += je->m_rate;
583 dst->t_rate += je->t_rate;
584 dst->m_iops += je->m_iops;
585 dst->t_iops += je->t_iops;
587 for (i = 0; i < 2; i++) {
588 dst->rate[i] += je->rate[i];
589 dst->iops[i] += je->iops[i];
592 dst->elapsed_sec += je->elapsed_sec;
594 if (je->eta_sec > dst->eta_sec)
595 dst->eta_sec = je->eta_sec;
598 static void dec_jobs_eta(struct client_eta *eta)
600 if (!--eta->pending) {
601 display_thread_status(&eta->eta);
606 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
608 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
609 struct client_eta *eta = (struct client_eta *) cmd->tag;
611 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
613 assert(client->eta_in_flight == eta);
615 client->eta_in_flight = NULL;
616 flist_del_init(&client->eta_list);
618 convert_jobs_eta(je);
619 sum_jobs_eta(&eta->eta, je);
623 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
625 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
626 const char *os, *arch;
628 os = fio_get_os_string(probe->os);
632 arch = fio_get_arch_string(probe->arch);
636 log_info("hostname=%s, be=%u, os=%s, arch=%s, fio=%u.%u.%u\n",
637 probe->hostname, probe->bigendian, os, arch, probe->fio_major,
638 probe->fio_minor, probe->fio_patch);
641 client->name = strdup((char *) probe->hostname);
644 static int handle_client(struct fio_client *client)
646 struct fio_net_cmd *cmd;
648 dprint(FD_NET, "client: handle %s\n", client->hostname);
650 cmd = fio_net_recv_cmd(client->fd);
654 dprint(FD_NET, "client: got cmd op %d from %s\n",
655 cmd->opcode, client->hostname);
657 switch (cmd->opcode) {
658 case FIO_NET_CMD_QUIT:
659 remove_client(client);
662 case FIO_NET_CMD_TEXT: {
663 const char *buf = (const char *) cmd->payload;
667 name = client->name ? client->name : client->hostname;
669 if (!client->skip_newline)
670 fprintf(f_out, "<%s> ", name);
671 ret = fwrite(buf, cmd->pdu_len, 1, f_out);
673 client->skip_newline = strchr(buf, '\n') == NULL;
685 case FIO_NET_CMD_ETA:
686 handle_eta(client, cmd);
689 case FIO_NET_CMD_PROBE:
690 handle_probe(client, cmd);
693 case FIO_NET_CMD_START:
694 client->state = Client_started;
697 case FIO_NET_CMD_STOP:
698 client->state = Client_stopped;
702 log_err("fio: unknown client op: %d\n", cmd->opcode);
710 static void request_client_etas(void)
712 struct fio_client *client;
713 struct flist_head *entry;
714 struct client_eta *eta;
717 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
719 eta = malloc(sizeof(*eta));
720 memset(&eta->eta, 0, sizeof(eta->eta));
721 eta->pending = nr_clients;
723 flist_for_each(entry, &client_list) {
724 client = flist_entry(entry, struct fio_client, list);
726 if (!flist_empty(&client->eta_list)) {
731 assert(!client->eta_in_flight);
732 flist_add_tail(&client->eta_list, &eta_list);
733 client->eta_in_flight = eta;
734 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
741 dprint(FD_NET, "client: requested eta tag %p\n", eta);
744 int fio_handle_clients(void)
746 struct fio_client *client;
747 struct flist_head *entry;
751 gettimeofday(&eta_tv, NULL);
753 pfds = malloc(nr_clients * sizeof(struct pollfd));
755 while (!exit_backend && nr_clients) {
757 flist_for_each(entry, &client_list) {
758 client = flist_entry(entry, struct fio_client, list);
760 pfds[i].fd = client->fd;
761 pfds[i].events = POLLIN;
765 assert(i == nr_clients);
770 gettimeofday(&tv, NULL);
771 if (mtime_since(&eta_tv, &tv) >= 900) {
772 request_client_etas();
773 memcpy(&eta_tv, &tv, sizeof(tv));
776 ret = poll(pfds, nr_clients, 100);
780 log_err("fio: poll clients: %s\n", strerror(errno));
786 for (i = 0; i < nr_clients; i++) {
787 if (!(pfds[i].revents & POLLIN))
790 client = find_client_by_fd(pfds[i].fd);
792 log_err("fio: unknown client fd %d\n", pfds[i].fd);
795 if (!handle_client(client)) {
796 log_info("client: host=%s disconnected\n",
798 remove_client(client);