11 #include <sys/socket.h>
13 #include <netinet/in.h>
14 #include <arpa/inet.h>
24 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
25 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd);
26 static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd);
27 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
28 static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd);
29 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd);
31 struct client_ops fio_client_ops = {
32 .text_op = handle_text,
33 .disk_util = handle_du,
34 .thread_status = handle_ts,
35 .group_stats = handle_gs,
37 .eta = display_thread_status,
38 .probe = handle_probe,
41 static struct timeval eta_tv;
43 static FLIST_HEAD(client_list);
44 static FLIST_HEAD(eta_list);
46 static FLIST_HEAD(arg_list);
48 struct thread_stat client_ts;
49 struct group_run_stats client_gs;
52 static int sum_stat_nr;
54 #define FIO_CLIENT_HASH_BITS 7
55 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
56 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
57 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
59 static void fio_client_add_hash(struct fio_client *client)
61 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
63 bucket &= FIO_CLIENT_HASH_MASK;
64 flist_add(&client->hash_list, &client_hash[bucket]);
67 static void fio_client_remove_hash(struct fio_client *client)
69 if (!flist_empty(&client->hash_list))
70 flist_del_init(&client->hash_list);
73 static void fio_init fio_client_hash_init(void)
77 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
78 INIT_FLIST_HEAD(&client_hash[i]);
81 static struct fio_client *find_client_by_fd(int fd)
83 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
84 struct fio_client *client;
85 struct flist_head *entry;
87 flist_for_each(entry, &client_hash[bucket]) {
88 client = flist_entry(entry, struct fio_client, hash_list);
90 if (client->fd == fd) {
99 static void remove_client(struct fio_client *client)
101 assert(client->refs);
106 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
107 flist_del(&client->list);
109 fio_client_remove_hash(client);
111 if (!flist_empty(&client->eta_list)) {
112 flist_del_init(&client->eta_list);
113 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
116 free(client->hostname);
127 static void put_client(struct fio_client *client)
129 remove_client(client);
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;
146 struct flist_head *entry;
151 __fio_client_add_cmd_option(client, opt);
154 * Duplicate arguments to shared client group
156 flist_for_each(entry, &arg_list) {
157 client = flist_entry(entry, struct fio_client, arg_list);
159 __fio_client_add_cmd_option(client, opt);
163 struct fio_client *fio_client_add_explicit(struct client_ops *ops,
164 const char *hostname, int type,
167 struct fio_client *client;
169 client = malloc(sizeof(*client));
170 memset(client, 0, sizeof(*client));
172 INIT_FLIST_HEAD(&client->list);
173 INIT_FLIST_HEAD(&client->hash_list);
174 INIT_FLIST_HEAD(&client->arg_list);
175 INIT_FLIST_HEAD(&client->eta_list);
176 INIT_FLIST_HEAD(&client->cmd_list);
178 client->hostname = strdup(hostname);
180 if (type == Fio_client_socket)
185 ipv6 = type == Fio_client_ipv6;
186 if (fio_server_parse_host(hostname, &ipv6,
187 &client->addr.sin_addr,
188 &client->addr6.sin6_addr))
198 __fio_client_add_cmd_option(client, "fio");
200 flist_add(&client->list, &client_list);
202 dprint(FD_NET, "client: added <%s>\n", client->hostname);
209 int fio_client_add(struct client_ops *ops, const char *hostname, void **cookie)
211 struct fio_client *existing = *cookie;
212 struct fio_client *client;
216 * We always add our "exec" name as the option, hence 1
219 if (existing->argc == 1)
220 flist_add_tail(&existing->arg_list, &arg_list);
222 while (!flist_empty(&arg_list))
223 flist_del_init(arg_list.next);
227 client = malloc(sizeof(*client));
228 memset(client, 0, sizeof(*client));
230 INIT_FLIST_HEAD(&client->list);
231 INIT_FLIST_HEAD(&client->hash_list);
232 INIT_FLIST_HEAD(&client->arg_list);
233 INIT_FLIST_HEAD(&client->eta_list);
234 INIT_FLIST_HEAD(&client->cmd_list);
236 if (fio_server_parse_string(hostname, &client->hostname,
237 &client->is_sock, &client->port,
238 &client->addr.sin_addr,
239 &client->addr6.sin6_addr,
247 __fio_client_add_cmd_option(client, "fio");
249 flist_add(&client->list, &client_list);
251 dprint(FD_NET, "client: added <%s>\n", client->hostname);
256 static int fio_client_connect_ip(struct fio_client *client)
258 struct sockaddr *addr;
259 fio_socklen_t socklen;
263 client->addr6.sin6_family = AF_INET6;
264 client->addr6.sin6_port = htons(client->port);
266 addr = (struct sockaddr *) &client->addr6;
267 socklen = sizeof(client->addr6);
269 client->addr.sin_family = AF_INET;
270 client->addr.sin_port = htons(client->port);
272 addr = (struct sockaddr *) &client->addr;
273 socklen = sizeof(client->addr);
276 fd = socket(domain, SOCK_STREAM, 0);
280 log_err("fio: socket: %s\n", strerror(errno));
284 if (connect(fd, addr, socklen) < 0) {
287 log_err("fio: connect: %s\n", strerror(errno));
288 log_err("fio: failed to connect to %s:%u\n", client->hostname,
297 static int fio_client_connect_sock(struct fio_client *client)
299 struct sockaddr_un *addr = &client->addr_un;
303 memset(addr, 0, sizeof(*addr));
304 addr->sun_family = AF_UNIX;
305 strcpy(addr->sun_path, client->hostname);
307 fd = socket(AF_UNIX, SOCK_STREAM, 0);
311 log_err("fio: socket: %s\n", strerror(errno));
315 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
316 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
319 log_err("fio: connect; %s\n", strerror(errno));
327 int fio_client_connect(struct fio_client *client)
331 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
334 fd = fio_client_connect_sock(client);
336 fd = fio_client_connect_ip(client);
338 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
344 fio_client_add_hash(client);
345 client->state = Client_connected;
349 void fio_client_terminate(struct fio_client *client)
351 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0, NULL);
354 void fio_clients_terminate(void)
356 struct flist_head *entry;
357 struct fio_client *client;
359 dprint(FD_NET, "client: terminate clients\n");
361 flist_for_each(entry, &client_list) {
362 client = flist_entry(entry, struct fio_client, list);
363 fio_client_terminate(client);
367 static void sig_int(int sig)
369 dprint(FD_NET, "client: got signal %d\n", sig);
370 fio_clients_terminate();
373 static void client_signal_handler(void)
375 struct sigaction act;
377 memset(&act, 0, sizeof(act));
378 act.sa_handler = sig_int;
379 act.sa_flags = SA_RESTART;
380 sigaction(SIGINT, &act, NULL);
382 memset(&act, 0, sizeof(act));
383 act.sa_handler = sig_int;
384 act.sa_flags = SA_RESTART;
385 sigaction(SIGTERM, &act, NULL);
388 static void probe_client(struct fio_client *client)
390 dprint(FD_NET, "client: send probe\n");
392 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0, &client->cmd_list);
395 static int send_client_cmd_line(struct fio_client *client)
397 struct cmd_single_line_pdu *cslp;
398 struct cmd_line_pdu *clp;
399 unsigned long offset;
405 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
407 lens = malloc(client->argc * sizeof(unsigned int));
410 * Find out how much mem we need
412 for (i = 0, mem = 0; i < client->argc; i++) {
413 lens[i] = strlen(client->argv[i]) + 1;
418 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
420 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
424 offset = sizeof(*clp);
426 for (i = 0; i < client->argc; i++) {
427 uint16_t arg_len = lens[i];
430 strcpy((char *) cslp->text, client->argv[i]);
431 cslp->len = cpu_to_le16(arg_len);
432 offset += sizeof(*cslp) + arg_len;
436 clp->lines = cpu_to_le16(client->argc);
437 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, 0);
442 int fio_clients_connect(void)
444 struct fio_client *client;
445 struct flist_head *entry, *tmp;
450 WSAStartup(MAKEWORD(2,2), &wsd);
453 dprint(FD_NET, "client: connect all\n");
455 client_signal_handler();
457 flist_for_each_safe(entry, tmp, &client_list) {
458 client = flist_entry(entry, struct fio_client, list);
460 ret = fio_client_connect(client);
462 remove_client(client);
466 probe_client(client);
468 if (client->argc > 1)
469 send_client_cmd_line(client);
475 int fio_start_client(struct fio_client *client)
477 dprint(FD_NET, "client: start %s\n", client->hostname);
478 return fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_RUN, 0, NULL);
481 int fio_start_all_clients(void)
483 struct fio_client *client;
484 struct flist_head *entry, *tmp;
487 dprint(FD_NET, "client: start all\n");
489 flist_for_each_safe(entry, tmp, &client_list) {
490 client = flist_entry(entry, struct fio_client, list);
492 ret = fio_start_client(client);
494 remove_client(client);
499 return flist_empty(&client_list);
503 * Send file contents to server backend. We could use sendfile(), but to remain
504 * more portable lets just read/write the darn thing.
506 static int __fio_client_send_ini(struct fio_client *client, const char *filename)
513 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
515 fd = open(filename, O_RDONLY);
519 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
523 if (fstat(fd, &sb) < 0) {
526 log_err("fio: job file stat: %s\n", strerror(errno));
531 buf = malloc(sb.st_size);
536 ret = read(fd, p, len);
545 else if (errno == EAGAIN || errno == EINTR)
550 log_err("fio: failed reading job file %s\n", filename);
556 client->sent_job = 1;
557 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size, 0);
563 int fio_client_send_ini(struct fio_client *client, const char *filename)
567 ret = __fio_client_send_ini(client, filename);
569 remove_client(client);
573 client->sent_job = 1;
577 int fio_clients_send_ini(const char *filename)
579 struct fio_client *client;
580 struct flist_head *entry, *tmp;
582 flist_for_each_safe(entry, tmp, &client_list) {
583 client = flist_entry(entry, struct fio_client, list);
585 fio_client_send_ini(client, filename);
591 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
593 dst->max_val = le64_to_cpu(src->max_val);
594 dst->min_val = le64_to_cpu(src->min_val);
595 dst->samples = le64_to_cpu(src->samples);
598 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
600 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
601 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
604 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
608 dst->error = le32_to_cpu(src->error);
609 dst->groupid = le32_to_cpu(src->groupid);
610 dst->pid = le32_to_cpu(src->pid);
611 dst->members = le32_to_cpu(src->members);
613 for (i = 0; i < 2; i++) {
614 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
615 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
616 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
617 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
620 dst->usr_time = le64_to_cpu(src->usr_time);
621 dst->sys_time = le64_to_cpu(src->sys_time);
622 dst->ctx = le64_to_cpu(src->ctx);
623 dst->minf = le64_to_cpu(src->minf);
624 dst->majf = le64_to_cpu(src->majf);
625 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
627 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
628 fio_fp64_t *fps = &src->percentile_list[i];
629 fio_fp64_t *fpd = &dst->percentile_list[i];
631 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
634 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
635 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
636 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
637 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
640 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
641 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
642 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
645 for (i = 0; i < 2; i++)
646 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
647 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
649 for (i = 0; i < 3; i++) {
650 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
651 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
654 dst->total_submit = le64_to_cpu(src->total_submit);
655 dst->total_complete = le64_to_cpu(src->total_complete);
657 for (i = 0; i < 2; i++) {
658 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
659 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
662 dst->total_run_time = le64_to_cpu(src->total_run_time);
663 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
664 dst->total_err_count = le64_to_cpu(src->total_err_count);
665 dst->first_error = le32_to_cpu(src->first_error);
666 dst->kb_base = le32_to_cpu(src->kb_base);
669 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
673 for (i = 0; i < 2; i++) {
674 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
675 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
676 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
677 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
678 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
679 dst->agg[i] = le64_to_cpu(src->agg[i]);
682 dst->kb_base = le32_to_cpu(src->kb_base);
683 dst->groupid = le32_to_cpu(src->groupid);
686 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
688 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
690 show_thread_status(&p->ts, &p->rs);
692 if (sum_stat_clients == 1)
695 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
696 sum_group_stats(&client_gs, &p->rs);
699 client_ts.groupid = p->ts.groupid;
701 if (++sum_stat_nr == sum_stat_clients) {
702 strcpy(client_ts.name, "All clients");
703 show_thread_status(&client_ts, &client_gs);
707 static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
709 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
711 show_group_stats(gs);
714 static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
716 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
717 const char *buf = (const char *) pdu->buf;
721 name = client->name ? client->name : client->hostname;
723 if (!client->skip_newline)
724 fprintf(f_out, "<%s> ", name);
725 ret = fwrite(buf, pdu->buf_len, 1, f_out);
727 client->skip_newline = strchr(buf, '\n') == NULL;
730 static void convert_agg(struct disk_util_agg *agg)
734 for (i = 0; i < 2; i++) {
735 agg->ios[i] = le32_to_cpu(agg->ios[i]);
736 agg->merges[i] = le32_to_cpu(agg->merges[i]);
737 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
738 agg->ticks[i] = le32_to_cpu(agg->ticks[i]);
741 agg->io_ticks = le32_to_cpu(agg->io_ticks);
742 agg->time_in_queue = le32_to_cpu(agg->time_in_queue);
743 agg->slavecount = le32_to_cpu(agg->slavecount);
744 agg->max_util.u.f = fio_uint64_to_double(__le64_to_cpu(agg->max_util.u.i));
747 static void convert_dus(struct disk_util_stat *dus)
751 for (i = 0; i < 2; i++) {
752 dus->ios[i] = le32_to_cpu(dus->ios[i]);
753 dus->merges[i] = le32_to_cpu(dus->merges[i]);
754 dus->sectors[i] = le64_to_cpu(dus->sectors[i]);
755 dus->ticks[i] = le32_to_cpu(dus->ticks[i]);
758 dus->io_ticks = le32_to_cpu(dus->io_ticks);
759 dus->time_in_queue = le32_to_cpu(dus->time_in_queue);
760 dus->msec = le64_to_cpu(dus->msec);
763 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
765 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
767 if (!client->disk_stats_shown) {
768 client->disk_stats_shown = 1;
769 log_info("\nDisk stats (read/write):\n");
772 print_disk_util(&du->dus, &du->agg, terse_output);
775 static void convert_jobs_eta(struct jobs_eta *je)
779 je->nr_running = le32_to_cpu(je->nr_running);
780 je->nr_ramp = le32_to_cpu(je->nr_ramp);
781 je->nr_pending = le32_to_cpu(je->nr_pending);
782 je->files_open = le32_to_cpu(je->files_open);
784 for (i = 0; i < 2; i++) {
785 je->m_rate[i] = le32_to_cpu(je->m_rate[i]);
786 je->t_rate[i] = le32_to_cpu(je->t_rate[i]);
787 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
788 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
789 je->rate[i] = le32_to_cpu(je->rate[i]);
790 je->iops[i] = le32_to_cpu(je->iops[i]);
793 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
794 je->eta_sec = le64_to_cpu(je->eta_sec);
795 je->nr_threads = le32_to_cpu(je->nr_threads);
798 void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
802 dst->nr_running += je->nr_running;
803 dst->nr_ramp += je->nr_ramp;
804 dst->nr_pending += je->nr_pending;
805 dst->files_open += je->files_open;
807 for (i = 0; i < 2; i++) {
808 dst->m_rate[i] += je->m_rate[i];
809 dst->t_rate[i] += je->t_rate[i];
810 dst->m_iops[i] += je->m_iops[i];
811 dst->t_iops[i] += je->t_iops[i];
812 dst->rate[i] += je->rate[i];
813 dst->iops[i] += je->iops[i];
816 dst->elapsed_sec += je->elapsed_sec;
818 if (je->eta_sec > dst->eta_sec)
819 dst->eta_sec = je->eta_sec;
821 dst->nr_threads += je->nr_threads;
822 /* we need to handle je->run_str too ... */
825 void fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
827 if (!--eta->pending) {
833 static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
835 struct fio_net_int_cmd *icmd = NULL;
836 struct flist_head *entry;
838 flist_for_each(entry, &client->cmd_list) {
839 icmd = flist_entry(entry, struct fio_net_int_cmd, list);
841 if (cmd->tag == (uintptr_t) icmd)
848 log_err("fio: client: unable to find matching tag\n");
852 flist_del(&icmd->list);
853 cmd->tag = icmd->saved_tag;
857 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
859 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
860 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
862 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
864 assert(client->eta_in_flight == eta);
866 client->eta_in_flight = NULL;
867 flist_del_init(&client->eta_list);
869 if (client->ops->jobs_eta)
870 client->ops->jobs_eta(client, je);
872 fio_client_sum_jobs_eta(&eta->eta, je);
873 fio_client_dec_jobs_eta(eta, client->ops->eta);
876 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
878 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
879 const char *os, *arch;
882 os = fio_get_os_string(probe->os);
886 arch = fio_get_arch_string(probe->arch);
890 sprintf(bit, "%d-bit", probe->bpp * 8);
892 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%u.%u.%u\n",
893 probe->hostname, probe->bigendian, bit, os, arch,
894 probe->fio_major, probe->fio_minor, probe->fio_patch);
897 client->name = strdup((char *) probe->hostname);
900 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
902 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
904 client->state = Client_started;
905 client->jobs = le32_to_cpu(pdu->jobs);
908 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
911 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
914 static void convert_stop(struct fio_net_cmd *cmd)
916 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
918 pdu->error = le32_to_cpu(pdu->error);
921 static void convert_text(struct fio_net_cmd *cmd)
923 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
925 pdu->level = le32_to_cpu(pdu->level);
926 pdu->buf_len = le32_to_cpu(pdu->buf_len);
927 pdu->log_sec = le64_to_cpu(pdu->log_sec);
928 pdu->log_usec = le64_to_cpu(pdu->log_usec);
931 int fio_handle_client(struct fio_client *client)
933 struct client_ops *ops = client->ops;
934 struct fio_net_cmd *cmd;
936 dprint(FD_NET, "client: handle %s\n", client->hostname);
938 cmd = fio_net_recv_cmd(client->fd);
942 dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
943 fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
945 switch (cmd->opcode) {
946 case FIO_NET_CMD_QUIT:
949 remove_client(client);
952 case FIO_NET_CMD_TEXT:
954 ops->text_op(client, cmd);
957 case FIO_NET_CMD_DU: {
958 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
960 convert_dus(&du->dus);
961 convert_agg(&du->agg);
963 ops->disk_util(client, cmd);
967 case FIO_NET_CMD_TS: {
968 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
970 convert_ts(&p->ts, &p->ts);
971 convert_gs(&p->rs, &p->rs);
973 ops->thread_status(client, cmd);
977 case FIO_NET_CMD_GS: {
978 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
982 ops->group_stats(client, cmd);
986 case FIO_NET_CMD_ETA: {
987 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
989 remove_reply_cmd(client, cmd);
990 convert_jobs_eta(je);
991 handle_eta(client, cmd);
995 case FIO_NET_CMD_PROBE:
996 remove_reply_cmd(client, cmd);
997 ops->probe(client, cmd);
1000 case FIO_NET_CMD_SERVER_START:
1001 client->state = Client_running;
1004 case FIO_NET_CMD_START:
1005 handle_start(client, cmd);
1008 case FIO_NET_CMD_STOP: {
1009 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1012 client->state = Client_stopped;
1013 client->error = pdu->error;
1014 ops->stop(client, cmd);
1018 case FIO_NET_CMD_ADD_JOB:
1020 ops->add_job(client, cmd);
1024 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
1032 static void request_client_etas(struct client_ops *ops)
1034 struct fio_client *client;
1035 struct flist_head *entry;
1036 struct client_eta *eta;
1039 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
1041 eta = malloc(sizeof(*eta));
1042 memset(&eta->eta, 0, sizeof(eta->eta));
1043 eta->pending = nr_clients;
1045 flist_for_each(entry, &client_list) {
1046 client = flist_entry(entry, struct fio_client, list);
1048 if (!flist_empty(&client->eta_list)) {
1052 if (client->state != Client_running)
1055 assert(!client->eta_in_flight);
1056 flist_add_tail(&client->eta_list, &eta_list);
1057 client->eta_in_flight = eta;
1058 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
1059 (uintptr_t) eta, &client->cmd_list);
1063 fio_client_dec_jobs_eta(eta, ops->eta);
1065 dprint(FD_NET, "client: requested eta tag %p\n", eta);
1068 static int client_check_cmd_timeout(struct fio_client *client,
1069 struct timeval *now)
1071 struct fio_net_int_cmd *cmd;
1072 struct flist_head *entry, *tmp;
1075 flist_for_each_safe(entry, tmp, &client->cmd_list) {
1076 cmd = flist_entry(entry, struct fio_net_int_cmd, list);
1078 if (mtime_since(&cmd->tv, now) < FIO_NET_CLIENT_TIMEOUT)
1081 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
1082 fio_server_op(cmd->cmd.opcode));
1083 flist_del(&cmd->list);
1088 return flist_empty(&client->cmd_list) && ret;
1091 static int fio_check_clients_timed_out(void)
1093 struct fio_client *client;
1094 struct flist_head *entry, *tmp;
1098 gettimeofday(&tv, NULL);
1100 flist_for_each_safe(entry, tmp, &client_list) {
1101 client = flist_entry(entry, struct fio_client, list);
1103 if (flist_empty(&client->cmd_list))
1106 if (!client_check_cmd_timeout(client, &tv))
1109 if (client->ops->timed_out)
1110 client->ops->timed_out(client);
1112 log_err("fio: client %s timed out\n", client->hostname);
1114 remove_client(client);
1121 int fio_handle_clients(struct client_ops *ops)
1123 struct pollfd *pfds;
1124 int i, ret = 0, retval = 0;
1126 gettimeofday(&eta_tv, NULL);
1128 pfds = malloc(nr_clients * sizeof(struct pollfd));
1130 sum_stat_clients = nr_clients;
1131 init_thread_stat(&client_ts);
1132 init_group_run_stat(&client_gs);
1134 while (!exit_backend && nr_clients) {
1135 struct flist_head *entry, *tmp;
1136 struct fio_client *client;
1139 flist_for_each_safe(entry, tmp, &client_list) {
1140 client = flist_entry(entry, struct fio_client, list);
1142 if (!client->sent_job && !client->ops->stay_connected &&
1143 flist_empty(&client->cmd_list)) {
1144 remove_client(client);
1148 pfds[i].fd = client->fd;
1149 pfds[i].events = POLLIN;
1156 assert(i == nr_clients);
1161 gettimeofday(&tv, NULL);
1162 if (mtime_since(&eta_tv, &tv) >= 900) {
1163 request_client_etas(ops);
1164 memcpy(&eta_tv, &tv, sizeof(tv));
1166 if (fio_check_clients_timed_out())
1170 ret = poll(pfds, nr_clients, 100);
1174 log_err("fio: poll clients: %s\n", strerror(errno));
1180 for (i = 0; i < nr_clients; i++) {
1181 if (!(pfds[i].revents & POLLIN))
1184 client = find_client_by_fd(pfds[i].fd);
1186 log_err("fio: unknown client fd %d\n", pfds[i].fd);
1189 if (!fio_handle_client(client)) {
1190 log_info("client: host=%s disconnected\n",
1192 remove_client(client);
1194 } else if (client->error)