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 flist_head arg_list;
32 struct sockaddr_in addr;
33 struct sockaddr_un addr_un;
45 struct flist_head eta_list;
46 struct client_eta *eta_in_flight;
48 struct flist_head cmd_list;
54 static struct timeval eta_tv;
64 static FLIST_HEAD(client_list);
65 static FLIST_HEAD(eta_list);
67 static FLIST_HEAD(arg_list);
69 static struct thread_stat client_ts;
70 static struct group_run_stats client_gs;
71 static int sum_stat_clients;
72 static int sum_stat_nr;
74 #define FIO_CLIENT_HASH_BITS 7
75 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
76 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
77 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
79 static int handle_client(struct fio_client *client);
80 static void dec_jobs_eta(struct client_eta *eta);
82 static void fio_client_add_hash(struct fio_client *client)
84 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
86 bucket &= FIO_CLIENT_HASH_MASK;
87 flist_add(&client->hash_list, &client_hash[bucket]);
90 static void fio_client_remove_hash(struct fio_client *client)
92 if (!flist_empty(&client->hash_list))
93 flist_del_init(&client->hash_list);
96 static void fio_init fio_client_hash_init(void)
100 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
101 INIT_FLIST_HEAD(&client_hash[i]);
104 static struct fio_client *find_client_by_fd(int fd)
106 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
107 struct fio_client *client;
108 struct flist_head *entry;
110 flist_for_each(entry, &client_hash[bucket]) {
111 client = flist_entry(entry, struct fio_client, hash_list);
113 if (client->fd == fd)
120 static void remove_client(struct fio_client *client)
122 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
123 flist_del(&client->list);
125 fio_client_remove_hash(client);
127 if (!flist_empty(&client->eta_list)) {
128 flist_del_init(&client->eta_list);
129 dec_jobs_eta(client->eta_in_flight);
132 free(client->hostname);
142 static void __fio_client_add_cmd_option(struct fio_client *client,
147 index = client->argc++;
148 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
149 client->argv[index] = strdup(opt);
150 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
153 void fio_client_add_cmd_option(void *cookie, const char *opt)
155 struct fio_client *client = cookie;
156 struct flist_head *entry;
161 __fio_client_add_cmd_option(client, opt);
164 * Duplicate arguments to shared client group
166 flist_for_each(entry, &arg_list) {
167 client = flist_entry(entry, struct fio_client, arg_list);
169 __fio_client_add_cmd_option(client, opt);
173 int fio_client_add(const char *hostname, void **cookie)
175 struct fio_client *existing = *cookie;
176 struct fio_client *client;
180 * We always add our "exec" name as the option, hence 1
183 if (existing->argc == 1)
184 flist_add_tail(&existing->arg_list, &arg_list);
186 while (!flist_empty(&arg_list))
187 flist_del_init(arg_list.next);
191 client = malloc(sizeof(*client));
192 memset(client, 0, sizeof(*client));
194 INIT_FLIST_HEAD(&client->list);
195 INIT_FLIST_HEAD(&client->hash_list);
196 INIT_FLIST_HEAD(&client->arg_list);
197 INIT_FLIST_HEAD(&client->eta_list);
198 INIT_FLIST_HEAD(&client->cmd_list);
200 if (fio_server_parse_string(hostname, &client->hostname,
201 &client->is_sock, &client->port,
202 &client->addr.sin_addr))
207 __fio_client_add_cmd_option(client, "fio");
209 flist_add(&client->list, &client_list);
211 dprint(FD_NET, "client: added <%s>\n", client->hostname);
216 static int fio_client_connect_ip(struct fio_client *client)
220 client->addr.sin_family = AF_INET;
221 client->addr.sin_port = htons(client->port);
223 fd = socket(AF_INET, SOCK_STREAM, 0);
225 log_err("fio: socket: %s\n", strerror(errno));
229 if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) {
230 log_err("fio: connect: %s\n", strerror(errno));
231 log_err("fio: failed to connect to %s:%u\n", client->hostname,
240 static int fio_client_connect_sock(struct fio_client *client)
242 struct sockaddr_un *addr = &client->addr_un;
246 memset(addr, 0, sizeof(*addr));
247 addr->sun_family = AF_UNIX;
248 strcpy(addr->sun_path, client->hostname);
250 fd = socket(AF_UNIX, SOCK_STREAM, 0);
252 log_err("fio: socket: %s\n", strerror(errno));
256 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
257 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
258 log_err("fio: connect; %s\n", strerror(errno));
266 static int fio_client_connect(struct fio_client *client)
270 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
273 fd = fio_client_connect_sock(client);
275 fd = fio_client_connect_ip(client);
277 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
283 fio_client_add_hash(client);
284 client->state = Client_connected;
288 void fio_clients_terminate(void)
290 struct flist_head *entry;
291 struct fio_client *client;
293 dprint(FD_NET, "client: terminate clients\n");
295 flist_for_each(entry, &client_list) {
296 client = flist_entry(entry, struct fio_client, list);
298 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0, NULL);
302 static void sig_int(int sig)
304 dprint(FD_NET, "client: got signal %d\n", sig);
305 fio_clients_terminate();
308 static void client_signal_handler(void)
310 struct sigaction act;
312 memset(&act, 0, sizeof(act));
313 act.sa_handler = sig_int;
314 act.sa_flags = SA_RESTART;
315 sigaction(SIGINT, &act, NULL);
317 memset(&act, 0, sizeof(act));
318 act.sa_handler = sig_int;
319 act.sa_flags = SA_RESTART;
320 sigaction(SIGTERM, &act, NULL);
323 static void probe_client(struct fio_client *client)
325 dprint(FD_NET, "client: send probe\n");
327 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0, &client->cmd_list);
330 static int send_client_cmd_line(struct fio_client *client)
332 struct cmd_single_line_pdu *cslp;
333 struct cmd_line_pdu *clp;
334 unsigned long offset;
340 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
342 lens = malloc(client->argc * sizeof(unsigned int));
345 * Find out how much mem we need
347 for (i = 0, mem = 0; i < client->argc; i++) {
348 lens[i] = strlen(client->argv[i]) + 1;
353 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
355 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
359 offset = sizeof(*clp);
361 for (i = 0; i < client->argc; i++) {
362 uint16_t arg_len = lens[i];
365 strcpy((char *) cslp->text, client->argv[i]);
366 cslp->len = cpu_to_le16(arg_len);
367 offset += sizeof(*cslp) + arg_len;
371 clp->lines = cpu_to_le16(client->argc);
372 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, 0);
377 int fio_clients_connect(void)
379 struct fio_client *client;
380 struct flist_head *entry, *tmp;
383 dprint(FD_NET, "client: connect all\n");
385 client_signal_handler();
387 flist_for_each_safe(entry, tmp, &client_list) {
388 client = flist_entry(entry, struct fio_client, list);
390 ret = fio_client_connect(client);
392 remove_client(client);
396 probe_client(client);
398 if (client->argc > 1)
399 send_client_cmd_line(client);
406 * Send file contents to server backend. We could use sendfile(), but to remain
407 * more portable lets just read/write the darn thing.
409 static int fio_client_send_ini(struct fio_client *client, const char *filename)
416 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
418 fd = open(filename, O_RDONLY);
420 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
424 if (fstat(fd, &sb) < 0) {
425 log_err("fio: job file stat: %s\n", strerror(errno));
430 buf = malloc(sb.st_size);
435 ret = read(fd, p, len);
444 else if (errno == EAGAIN || errno == EINTR)
449 log_err("fio: failed reading job file %s\n", filename);
455 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size, 0);
461 int fio_clients_send_ini(const char *filename)
463 struct fio_client *client;
464 struct flist_head *entry, *tmp;
466 flist_for_each_safe(entry, tmp, &client_list) {
467 client = flist_entry(entry, struct fio_client, list);
469 if (fio_client_send_ini(client, filename))
470 remove_client(client);
476 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
478 dst->max_val = le64_to_cpu(src->max_val);
479 dst->min_val = le64_to_cpu(src->min_val);
480 dst->samples = le64_to_cpu(src->samples);
483 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
485 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
486 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
489 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
493 dst->error = le32_to_cpu(src->error);
494 dst->groupid = le32_to_cpu(src->groupid);
495 dst->pid = le32_to_cpu(src->pid);
496 dst->members = le32_to_cpu(src->members);
498 for (i = 0; i < 2; i++) {
499 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
500 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
501 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
502 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
505 dst->usr_time = le64_to_cpu(src->usr_time);
506 dst->sys_time = le64_to_cpu(src->sys_time);
507 dst->ctx = le64_to_cpu(src->ctx);
508 dst->minf = le64_to_cpu(src->minf);
509 dst->majf = le64_to_cpu(src->majf);
510 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
512 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
513 fio_fp64_t *fps = &src->percentile_list[i];
514 fio_fp64_t *fpd = &dst->percentile_list[i];
516 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
519 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
520 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
521 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
522 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
525 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
526 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
527 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
530 for (i = 0; i < 2; i++)
531 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
532 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
534 for (i = 0; i < 3; i++) {
535 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
536 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
539 dst->total_submit = le64_to_cpu(src->total_submit);
540 dst->total_complete = le64_to_cpu(src->total_complete);
542 for (i = 0; i < 2; i++) {
543 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
544 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
547 dst->total_run_time = le64_to_cpu(src->total_run_time);
548 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
549 dst->total_err_count = le64_to_cpu(src->total_err_count);
550 dst->first_error = le32_to_cpu(src->first_error);
551 dst->kb_base = le32_to_cpu(src->kb_base);
554 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
558 for (i = 0; i < 2; i++) {
559 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
560 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
561 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
562 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
563 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
564 dst->agg[i] = le64_to_cpu(src->agg[i]);
567 dst->kb_base = le32_to_cpu(src->kb_base);
568 dst->groupid = le32_to_cpu(src->groupid);
571 static void handle_ts(struct fio_net_cmd *cmd)
573 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
575 convert_ts(&p->ts, &p->ts);
576 convert_gs(&p->rs, &p->rs);
578 show_thread_status(&p->ts, &p->rs);
580 if (sum_stat_clients == 1)
583 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
584 sum_group_stats(&client_gs, &p->rs);
587 client_ts.groupid = p->ts.groupid;
589 if (++sum_stat_nr == sum_stat_clients) {
590 strcpy(client_ts.name, "All clients");
591 show_thread_status(&client_ts, &client_gs);
595 static void handle_gs(struct fio_net_cmd *cmd)
597 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
600 show_group_stats(gs);
603 static void convert_jobs_eta(struct jobs_eta *je)
607 je->nr_running = le32_to_cpu(je->nr_running);
608 je->nr_ramp = le32_to_cpu(je->nr_ramp);
609 je->nr_pending = le32_to_cpu(je->nr_pending);
610 je->files_open = le32_to_cpu(je->files_open);
611 je->m_rate = le32_to_cpu(je->m_rate);
612 je->t_rate = le32_to_cpu(je->t_rate);
613 je->m_iops = le32_to_cpu(je->m_iops);
614 je->t_iops = le32_to_cpu(je->t_iops);
616 for (i = 0; i < 2; i++) {
617 je->rate[i] = le32_to_cpu(je->rate[i]);
618 je->iops[i] = le32_to_cpu(je->iops[i]);
621 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
622 je->eta_sec = le64_to_cpu(je->eta_sec);
625 static void sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
629 dst->nr_running += je->nr_running;
630 dst->nr_ramp += je->nr_ramp;
631 dst->nr_pending += je->nr_pending;
632 dst->files_open += je->files_open;
633 dst->m_rate += je->m_rate;
634 dst->t_rate += je->t_rate;
635 dst->m_iops += je->m_iops;
636 dst->t_iops += je->t_iops;
638 for (i = 0; i < 2; i++) {
639 dst->rate[i] += je->rate[i];
640 dst->iops[i] += je->iops[i];
643 dst->elapsed_sec += je->elapsed_sec;
645 if (je->eta_sec > dst->eta_sec)
646 dst->eta_sec = je->eta_sec;
649 static void dec_jobs_eta(struct client_eta *eta)
651 if (!--eta->pending) {
652 display_thread_status(&eta->eta);
657 static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
659 struct fio_net_int_cmd *icmd = NULL;
660 struct flist_head *entry;
662 flist_for_each(entry, &client->cmd_list) {
663 icmd = flist_entry(entry, struct fio_net_int_cmd, list);
665 if (cmd->tag == (uint64_t) icmd)
672 log_err("fio: client: unable to find matching tag\n");
676 flist_del(&icmd->list);
677 cmd->tag = icmd->saved_tag;
681 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
683 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
684 struct client_eta *eta = (struct client_eta *) cmd->tag;
686 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
688 assert(client->eta_in_flight == eta);
690 client->eta_in_flight = NULL;
691 flist_del_init(&client->eta_list);
693 convert_jobs_eta(je);
694 sum_jobs_eta(&eta->eta, je);
698 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
700 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
701 const char *os, *arch;
703 os = fio_get_os_string(probe->os);
707 arch = fio_get_arch_string(probe->arch);
711 log_info("hostname=%s, be=%u, os=%s, arch=%s, fio=%u.%u.%u\n",
712 probe->hostname, probe->bigendian, os, arch, probe->fio_major,
713 probe->fio_minor, probe->fio_patch);
716 client->name = strdup((char *) probe->hostname);
719 static int handle_client(struct fio_client *client)
721 struct fio_net_cmd *cmd;
723 dprint(FD_NET, "client: handle %s\n", client->hostname);
725 cmd = fio_net_recv_cmd(client->fd);
729 dprint(FD_NET, "client: got cmd op %s from %s\n",
730 fio_server_op(cmd->opcode), client->hostname);
732 switch (cmd->opcode) {
733 case FIO_NET_CMD_QUIT:
734 remove_client(client);
737 case FIO_NET_CMD_TEXT: {
738 const char *buf = (const char *) cmd->payload;
742 name = client->name ? client->name : client->hostname;
744 if (!client->skip_newline)
745 fprintf(f_out, "<%s> ", name);
746 ret = fwrite(buf, cmd->pdu_len, 1, f_out);
748 client->skip_newline = strchr(buf, '\n') == NULL;
760 case FIO_NET_CMD_ETA:
761 remove_reply_cmd(client, cmd);
762 handle_eta(client, cmd);
765 case FIO_NET_CMD_PROBE:
766 remove_reply_cmd(client, cmd);
767 handle_probe(client, cmd);
770 case FIO_NET_CMD_START:
771 client->state = Client_started;
774 case FIO_NET_CMD_STOP:
775 client->state = Client_stopped;
779 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
787 static void request_client_etas(void)
789 struct fio_client *client;
790 struct flist_head *entry;
791 struct client_eta *eta;
794 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
796 eta = malloc(sizeof(*eta));
797 memset(&eta->eta, 0, sizeof(eta->eta));
798 eta->pending = nr_clients;
800 flist_for_each(entry, &client_list) {
801 client = flist_entry(entry, struct fio_client, list);
803 if (!flist_empty(&client->eta_list)) {
808 assert(!client->eta_in_flight);
809 flist_add_tail(&client->eta_list, &eta_list);
810 client->eta_in_flight = eta;
811 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
812 (uint64_t) eta, &client->cmd_list);
818 dprint(FD_NET, "client: requested eta tag %p\n", eta);
821 static int client_check_cmd_timeout(struct fio_client *client,
824 struct fio_net_int_cmd *cmd;
825 struct flist_head *entry, *tmp;
828 flist_for_each_safe(entry, tmp, &client->cmd_list) {
829 cmd = flist_entry(entry, struct fio_net_int_cmd, list);
831 if (mtime_since(&cmd->tv, now) < FIO_NET_CLIENT_TIMEOUT)
834 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
835 fio_server_op(cmd->cmd.opcode));
836 flist_del(&cmd->list);
841 return flist_empty(&client->cmd_list) && ret;
844 static int fio_client_timed_out(void)
846 struct fio_client *client;
847 struct flist_head *entry, *tmp;
851 gettimeofday(&tv, NULL);
853 flist_for_each_safe(entry, tmp, &client_list) {
854 client = flist_entry(entry, struct fio_client, list);
856 if (flist_empty(&client->cmd_list))
859 if (!client_check_cmd_timeout(client, &tv))
862 log_err("fio: client %s timed out\n", client->hostname);
863 remove_client(client);
870 int fio_handle_clients(void)
872 struct fio_client *client;
873 struct flist_head *entry;
877 gettimeofday(&eta_tv, NULL);
879 pfds = malloc(nr_clients * sizeof(struct pollfd));
881 sum_stat_clients = nr_clients;
882 init_thread_stat(&client_ts);
883 init_group_run_stat(&client_gs);
885 while (!exit_backend && nr_clients) {
887 flist_for_each(entry, &client_list) {
888 client = flist_entry(entry, struct fio_client, list);
890 pfds[i].fd = client->fd;
891 pfds[i].events = POLLIN;
895 assert(i == nr_clients);
900 gettimeofday(&tv, NULL);
901 if (mtime_since(&eta_tv, &tv) >= 900) {
902 request_client_etas();
903 memcpy(&eta_tv, &tv, sizeof(tv));
905 if (fio_client_timed_out())
909 ret = poll(pfds, nr_clients, 100);
913 log_err("fio: poll clients: %s\n", strerror(errno));
919 for (i = 0; i < nr_clients; i++) {
920 if (!(pfds[i].revents & POLLIN))
923 client = find_client_by_fd(pfds[i].fd);
925 log_err("fio: unknown client fd %d\n", pfds[i].fd);
928 if (!handle_client(client)) {
929 log_info("client: host=%s disconnected\n",
931 remove_client(client);