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,
39 .eta_msec = FIO_CLIENT_DEF_ETA_MSEC,
42 static struct timeval eta_tv;
44 static FLIST_HEAD(client_list);
45 static FLIST_HEAD(eta_list);
47 static FLIST_HEAD(arg_list);
49 struct thread_stat client_ts;
50 struct group_run_stats client_gs;
53 static int sum_stat_nr;
55 #define FIO_CLIENT_HASH_BITS 7
56 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
57 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
58 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
60 static void fio_client_add_hash(struct fio_client *client)
62 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
64 bucket &= FIO_CLIENT_HASH_MASK;
65 flist_add(&client->hash_list, &client_hash[bucket]);
68 static void fio_client_remove_hash(struct fio_client *client)
70 if (!flist_empty(&client->hash_list))
71 flist_del_init(&client->hash_list);
74 static void fio_init fio_client_hash_init(void)
78 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
79 INIT_FLIST_HEAD(&client_hash[i]);
82 static struct fio_client *find_client_by_fd(int fd)
84 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
85 struct fio_client *client;
86 struct flist_head *entry;
88 flist_for_each(entry, &client_hash[bucket]) {
89 client = flist_entry(entry, struct fio_client, hash_list);
92 return fio_get_client(client);
98 static void remove_client(struct fio_client *client)
100 assert(client->refs);
105 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
106 flist_del(&client->list);
108 fio_client_remove_hash(client);
110 if (!flist_empty(&client->eta_list)) {
111 flist_del_init(&client->eta_list);
112 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
115 free(client->hostname);
126 void fio_put_client(struct fio_client *client)
128 remove_client(client);
131 struct fio_client *fio_get_client(struct fio_client *client)
137 static void __fio_client_add_cmd_option(struct fio_client *client,
142 index = client->argc++;
143 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
144 client->argv[index] = strdup(opt);
145 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
148 void fio_client_add_cmd_option(void *cookie, const char *opt)
150 struct fio_client *client = cookie;
151 struct flist_head *entry;
156 __fio_client_add_cmd_option(client, opt);
159 * Duplicate arguments to shared client group
161 flist_for_each(entry, &arg_list) {
162 client = flist_entry(entry, struct fio_client, arg_list);
164 __fio_client_add_cmd_option(client, opt);
168 struct fio_client *fio_client_add_explicit(struct client_ops *ops,
169 const char *hostname, int type,
172 struct fio_client *client;
174 client = malloc(sizeof(*client));
175 memset(client, 0, sizeof(*client));
177 INIT_FLIST_HEAD(&client->list);
178 INIT_FLIST_HEAD(&client->hash_list);
179 INIT_FLIST_HEAD(&client->arg_list);
180 INIT_FLIST_HEAD(&client->eta_list);
181 INIT_FLIST_HEAD(&client->cmd_list);
183 client->hostname = strdup(hostname);
185 if (type == Fio_client_socket)
190 ipv6 = type == Fio_client_ipv6;
191 if (fio_server_parse_host(hostname, &ipv6,
192 &client->addr.sin_addr,
193 &client->addr6.sin6_addr))
203 __fio_client_add_cmd_option(client, "fio");
205 flist_add(&client->list, &client_list);
207 dprint(FD_NET, "client: added <%s>\n", client->hostname);
214 int fio_client_add(struct client_ops *ops, const char *hostname, void **cookie)
216 struct fio_client *existing = *cookie;
217 struct fio_client *client;
221 * We always add our "exec" name as the option, hence 1
224 if (existing->argc == 1)
225 flist_add_tail(&existing->arg_list, &arg_list);
227 while (!flist_empty(&arg_list))
228 flist_del_init(arg_list.next);
232 client = malloc(sizeof(*client));
233 memset(client, 0, sizeof(*client));
235 INIT_FLIST_HEAD(&client->list);
236 INIT_FLIST_HEAD(&client->hash_list);
237 INIT_FLIST_HEAD(&client->arg_list);
238 INIT_FLIST_HEAD(&client->eta_list);
239 INIT_FLIST_HEAD(&client->cmd_list);
241 if (fio_server_parse_string(hostname, &client->hostname,
242 &client->is_sock, &client->port,
243 &client->addr.sin_addr,
244 &client->addr6.sin6_addr,
252 __fio_client_add_cmd_option(client, "fio");
254 flist_add(&client->list, &client_list);
256 dprint(FD_NET, "client: added <%s>\n", client->hostname);
261 static void probe_client(struct fio_client *client)
263 dprint(FD_NET, "client: send probe\n");
265 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0, &client->cmd_list);
268 static int fio_client_connect_ip(struct fio_client *client)
270 struct sockaddr *addr;
271 fio_socklen_t socklen;
275 client->addr6.sin6_family = AF_INET6;
276 client->addr6.sin6_port = htons(client->port);
278 addr = (struct sockaddr *) &client->addr6;
279 socklen = sizeof(client->addr6);
281 client->addr.sin_family = AF_INET;
282 client->addr.sin_port = htons(client->port);
284 addr = (struct sockaddr *) &client->addr;
285 socklen = sizeof(client->addr);
288 fd = socket(domain, SOCK_STREAM, 0);
292 log_err("fio: socket: %s\n", strerror(errno));
296 if (connect(fd, addr, socklen) < 0) {
299 log_err("fio: connect: %s\n", strerror(errno));
300 log_err("fio: failed to connect to %s:%u\n", client->hostname,
309 static int fio_client_connect_sock(struct fio_client *client)
311 struct sockaddr_un *addr = &client->addr_un;
315 memset(addr, 0, sizeof(*addr));
316 addr->sun_family = AF_UNIX;
317 strcpy(addr->sun_path, client->hostname);
319 fd = socket(AF_UNIX, SOCK_STREAM, 0);
323 log_err("fio: socket: %s\n", strerror(errno));
327 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
328 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
331 log_err("fio: connect; %s\n", strerror(errno));
339 int fio_client_connect(struct fio_client *client)
343 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
346 fd = fio_client_connect_sock(client);
348 fd = fio_client_connect_ip(client);
350 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
356 fio_client_add_hash(client);
357 client->state = Client_connected;
359 probe_client(client);
363 void fio_client_terminate(struct fio_client *client)
365 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0, NULL);
368 void fio_clients_terminate(void)
370 struct flist_head *entry;
371 struct fio_client *client;
373 dprint(FD_NET, "client: terminate clients\n");
375 flist_for_each(entry, &client_list) {
376 client = flist_entry(entry, struct fio_client, list);
377 fio_client_terminate(client);
381 static void sig_int(int sig)
383 dprint(FD_NET, "client: got signal %d\n", sig);
384 fio_clients_terminate();
387 static void client_signal_handler(void)
389 struct sigaction act;
391 memset(&act, 0, sizeof(act));
392 act.sa_handler = sig_int;
393 act.sa_flags = SA_RESTART;
394 sigaction(SIGINT, &act, NULL);
396 memset(&act, 0, sizeof(act));
397 act.sa_handler = sig_int;
398 act.sa_flags = SA_RESTART;
399 sigaction(SIGTERM, &act, NULL);
402 static int send_client_cmd_line(struct fio_client *client)
404 struct cmd_single_line_pdu *cslp;
405 struct cmd_line_pdu *clp;
406 unsigned long offset;
412 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
414 lens = malloc(client->argc * sizeof(unsigned int));
417 * Find out how much mem we need
419 for (i = 0, mem = 0; i < client->argc; i++) {
420 lens[i] = strlen(client->argv[i]) + 1;
425 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
427 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
431 offset = sizeof(*clp);
433 for (i = 0; i < client->argc; i++) {
434 uint16_t arg_len = lens[i];
437 strcpy((char *) cslp->text, client->argv[i]);
438 cslp->len = cpu_to_le16(arg_len);
439 offset += sizeof(*cslp) + arg_len;
443 clp->lines = cpu_to_le16(client->argc);
444 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, 0);
449 int fio_clients_connect(void)
451 struct fio_client *client;
452 struct flist_head *entry, *tmp;
457 WSAStartup(MAKEWORD(2,2), &wsd);
460 dprint(FD_NET, "client: connect all\n");
462 client_signal_handler();
464 flist_for_each_safe(entry, tmp, &client_list) {
465 client = flist_entry(entry, struct fio_client, list);
467 ret = fio_client_connect(client);
469 remove_client(client);
473 if (client->argc > 1)
474 send_client_cmd_line(client);
480 int fio_start_client(struct fio_client *client)
482 dprint(FD_NET, "client: start %s\n", client->hostname);
483 return fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_RUN, 0, NULL);
486 int fio_start_all_clients(void)
488 struct fio_client *client;
489 struct flist_head *entry, *tmp;
492 dprint(FD_NET, "client: start all\n");
494 flist_for_each_safe(entry, tmp, &client_list) {
495 client = flist_entry(entry, struct fio_client, list);
497 ret = fio_start_client(client);
499 remove_client(client);
504 return flist_empty(&client_list);
508 * Send file contents to server backend. We could use sendfile(), but to remain
509 * more portable lets just read/write the darn thing.
511 static int __fio_client_send_ini(struct fio_client *client, const char *filename)
518 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
520 fd = open(filename, O_RDONLY);
524 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
528 if (fstat(fd, &sb) < 0) {
531 log_err("fio: job file stat: %s\n", strerror(errno));
536 buf = malloc(sb.st_size);
541 ret = read(fd, p, len);
550 else if (errno == EAGAIN || errno == EINTR)
555 log_err("fio: failed reading job file %s\n", filename);
561 client->sent_job = 1;
562 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size, 0);
568 int fio_client_send_ini(struct fio_client *client, const char *filename)
572 ret = __fio_client_send_ini(client, filename);
574 remove_client(client);
578 client->sent_job = 1;
582 int fio_clients_send_ini(const char *filename)
584 struct fio_client *client;
585 struct flist_head *entry, *tmp;
587 flist_for_each_safe(entry, tmp, &client_list) {
588 client = flist_entry(entry, struct fio_client, list);
590 fio_client_send_ini(client, filename);
596 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
598 dst->max_val = le64_to_cpu(src->max_val);
599 dst->min_val = le64_to_cpu(src->min_val);
600 dst->samples = le64_to_cpu(src->samples);
603 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
605 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
606 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
609 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
613 dst->error = le32_to_cpu(src->error);
614 dst->groupid = le32_to_cpu(src->groupid);
615 dst->pid = le32_to_cpu(src->pid);
616 dst->members = le32_to_cpu(src->members);
618 for (i = 0; i < 2; i++) {
619 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
620 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
621 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
622 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
625 dst->usr_time = le64_to_cpu(src->usr_time);
626 dst->sys_time = le64_to_cpu(src->sys_time);
627 dst->ctx = le64_to_cpu(src->ctx);
628 dst->minf = le64_to_cpu(src->minf);
629 dst->majf = le64_to_cpu(src->majf);
630 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
632 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
633 fio_fp64_t *fps = &src->percentile_list[i];
634 fio_fp64_t *fpd = &dst->percentile_list[i];
636 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
639 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
640 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
641 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
642 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
645 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
646 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
647 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
650 for (i = 0; i < 2; i++)
651 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
652 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
654 for (i = 0; i < 3; i++) {
655 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
656 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
659 dst->total_submit = le64_to_cpu(src->total_submit);
660 dst->total_complete = le64_to_cpu(src->total_complete);
662 for (i = 0; i < 2; i++) {
663 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
664 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
667 dst->total_run_time = le64_to_cpu(src->total_run_time);
668 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
669 dst->total_err_count = le64_to_cpu(src->total_err_count);
670 dst->first_error = le32_to_cpu(src->first_error);
671 dst->kb_base = le32_to_cpu(src->kb_base);
674 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
678 for (i = 0; i < 2; i++) {
679 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
680 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
681 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
682 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
683 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
684 dst->agg[i] = le64_to_cpu(src->agg[i]);
687 dst->kb_base = le32_to_cpu(src->kb_base);
688 dst->groupid = le32_to_cpu(src->groupid);
691 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
693 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
695 show_thread_status(&p->ts, &p->rs);
697 if (sum_stat_clients == 1)
700 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
701 sum_group_stats(&client_gs, &p->rs);
704 client_ts.groupid = p->ts.groupid;
706 if (++sum_stat_nr == sum_stat_clients) {
707 strcpy(client_ts.name, "All clients");
708 show_thread_status(&client_ts, &client_gs);
712 static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
714 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
716 show_group_stats(gs);
719 static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
721 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
722 const char *buf = (const char *) pdu->buf;
726 name = client->name ? client->name : client->hostname;
728 if (!client->skip_newline)
729 fprintf(f_out, "<%s> ", name);
730 ret = fwrite(buf, pdu->buf_len, 1, f_out);
732 client->skip_newline = strchr(buf, '\n') == NULL;
735 static void convert_agg(struct disk_util_agg *agg)
739 for (i = 0; i < 2; i++) {
740 agg->ios[i] = le32_to_cpu(agg->ios[i]);
741 agg->merges[i] = le32_to_cpu(agg->merges[i]);
742 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
743 agg->ticks[i] = le32_to_cpu(agg->ticks[i]);
746 agg->io_ticks = le32_to_cpu(agg->io_ticks);
747 agg->time_in_queue = le32_to_cpu(agg->time_in_queue);
748 agg->slavecount = le32_to_cpu(agg->slavecount);
749 agg->max_util.u.f = fio_uint64_to_double(__le64_to_cpu(agg->max_util.u.i));
752 static void convert_dus(struct disk_util_stat *dus)
756 for (i = 0; i < 2; i++) {
757 dus->ios[i] = le32_to_cpu(dus->ios[i]);
758 dus->merges[i] = le32_to_cpu(dus->merges[i]);
759 dus->sectors[i] = le64_to_cpu(dus->sectors[i]);
760 dus->ticks[i] = le32_to_cpu(dus->ticks[i]);
763 dus->io_ticks = le32_to_cpu(dus->io_ticks);
764 dus->time_in_queue = le32_to_cpu(dus->time_in_queue);
765 dus->msec = le64_to_cpu(dus->msec);
768 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
770 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
772 if (!client->disk_stats_shown) {
773 client->disk_stats_shown = 1;
774 log_info("\nDisk stats (read/write):\n");
777 print_disk_util(&du->dus, &du->agg, terse_output);
780 static void convert_jobs_eta(struct jobs_eta *je)
784 je->nr_running = le32_to_cpu(je->nr_running);
785 je->nr_ramp = le32_to_cpu(je->nr_ramp);
786 je->nr_pending = le32_to_cpu(je->nr_pending);
787 je->files_open = le32_to_cpu(je->files_open);
789 for (i = 0; i < 2; i++) {
790 je->m_rate[i] = le32_to_cpu(je->m_rate[i]);
791 je->t_rate[i] = le32_to_cpu(je->t_rate[i]);
792 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
793 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
794 je->rate[i] = le32_to_cpu(je->rate[i]);
795 je->iops[i] = le32_to_cpu(je->iops[i]);
798 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
799 je->eta_sec = le64_to_cpu(je->eta_sec);
800 je->nr_threads = le32_to_cpu(je->nr_threads);
803 void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
807 dst->nr_running += je->nr_running;
808 dst->nr_ramp += je->nr_ramp;
809 dst->nr_pending += je->nr_pending;
810 dst->files_open += je->files_open;
812 for (i = 0; i < 2; i++) {
813 dst->m_rate[i] += je->m_rate[i];
814 dst->t_rate[i] += je->t_rate[i];
815 dst->m_iops[i] += je->m_iops[i];
816 dst->t_iops[i] += je->t_iops[i];
817 dst->rate[i] += je->rate[i];
818 dst->iops[i] += je->iops[i];
821 dst->elapsed_sec += je->elapsed_sec;
823 if (je->eta_sec > dst->eta_sec)
824 dst->eta_sec = je->eta_sec;
826 dst->nr_threads += je->nr_threads;
827 /* we need to handle je->run_str too ... */
830 void fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
832 if (!--eta->pending) {
838 static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
840 struct fio_net_int_cmd *icmd = NULL;
841 struct flist_head *entry;
843 flist_for_each(entry, &client->cmd_list) {
844 icmd = flist_entry(entry, struct fio_net_int_cmd, list);
846 if (cmd->tag == (uintptr_t) icmd)
853 log_err("fio: client: unable to find matching tag\n");
857 flist_del(&icmd->list);
858 cmd->tag = icmd->saved_tag;
862 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
864 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
865 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
867 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
869 assert(client->eta_in_flight == eta);
871 client->eta_in_flight = NULL;
872 flist_del_init(&client->eta_list);
874 if (client->ops->jobs_eta)
875 client->ops->jobs_eta(client, je);
877 fio_client_sum_jobs_eta(&eta->eta, je);
878 fio_client_dec_jobs_eta(eta, client->ops->eta);
881 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
883 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
884 const char *os, *arch;
887 os = fio_get_os_string(probe->os);
891 arch = fio_get_arch_string(probe->arch);
895 sprintf(bit, "%d-bit", probe->bpp * 8);
897 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%u.%u.%u\n",
898 probe->hostname, probe->bigendian, bit, os, arch,
899 probe->fio_major, probe->fio_minor, probe->fio_patch);
902 client->name = strdup((char *) probe->hostname);
905 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
907 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
909 client->state = Client_started;
910 client->jobs = le32_to_cpu(pdu->jobs);
913 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
916 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
919 static void convert_stop(struct fio_net_cmd *cmd)
921 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
923 pdu->error = le32_to_cpu(pdu->error);
926 static void convert_text(struct fio_net_cmd *cmd)
928 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
930 pdu->level = le32_to_cpu(pdu->level);
931 pdu->buf_len = le32_to_cpu(pdu->buf_len);
932 pdu->log_sec = le64_to_cpu(pdu->log_sec);
933 pdu->log_usec = le64_to_cpu(pdu->log_usec);
936 int fio_handle_client(struct fio_client *client)
938 struct client_ops *ops = client->ops;
939 struct fio_net_cmd *cmd;
941 dprint(FD_NET, "client: handle %s\n", client->hostname);
943 cmd = fio_net_recv_cmd(client->fd);
947 dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
948 fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
950 switch (cmd->opcode) {
951 case FIO_NET_CMD_QUIT:
954 remove_client(client);
957 case FIO_NET_CMD_TEXT:
959 ops->text_op(client, cmd);
962 case FIO_NET_CMD_DU: {
963 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
965 convert_dus(&du->dus);
966 convert_agg(&du->agg);
968 ops->disk_util(client, cmd);
972 case FIO_NET_CMD_TS: {
973 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
975 convert_ts(&p->ts, &p->ts);
976 convert_gs(&p->rs, &p->rs);
978 ops->thread_status(client, cmd);
982 case FIO_NET_CMD_GS: {
983 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
987 ops->group_stats(client, cmd);
991 case FIO_NET_CMD_ETA: {
992 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
994 remove_reply_cmd(client, cmd);
995 convert_jobs_eta(je);
996 handle_eta(client, cmd);
1000 case FIO_NET_CMD_PROBE:
1001 remove_reply_cmd(client, cmd);
1002 ops->probe(client, cmd);
1005 case FIO_NET_CMD_SERVER_START:
1006 client->state = Client_running;
1009 case FIO_NET_CMD_START:
1010 handle_start(client, cmd);
1013 case FIO_NET_CMD_STOP: {
1014 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1017 client->state = Client_stopped;
1018 client->error = pdu->error;
1019 ops->stop(client, cmd);
1023 case FIO_NET_CMD_ADD_JOB:
1025 ops->add_job(client, cmd);
1029 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
1037 static void request_client_etas(struct client_ops *ops)
1039 struct fio_client *client;
1040 struct flist_head *entry;
1041 struct client_eta *eta;
1044 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
1046 eta = malloc(sizeof(*eta));
1047 memset(&eta->eta, 0, sizeof(eta->eta));
1048 eta->pending = nr_clients;
1050 flist_for_each(entry, &client_list) {
1051 client = flist_entry(entry, struct fio_client, list);
1053 if (!flist_empty(&client->eta_list)) {
1057 if (client->state != Client_running)
1060 assert(!client->eta_in_flight);
1061 flist_add_tail(&client->eta_list, &eta_list);
1062 client->eta_in_flight = eta;
1063 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
1064 (uintptr_t) eta, &client->cmd_list);
1068 fio_client_dec_jobs_eta(eta, ops->eta);
1070 dprint(FD_NET, "client: requested eta tag %p\n", eta);
1073 static int client_check_cmd_timeout(struct fio_client *client,
1074 struct timeval *now)
1076 struct fio_net_int_cmd *cmd;
1077 struct flist_head *entry, *tmp;
1080 flist_for_each_safe(entry, tmp, &client->cmd_list) {
1081 cmd = flist_entry(entry, struct fio_net_int_cmd, list);
1083 if (mtime_since(&cmd->tv, now) < FIO_NET_CLIENT_TIMEOUT)
1086 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
1087 fio_server_op(cmd->cmd.opcode));
1088 flist_del(&cmd->list);
1093 return flist_empty(&client->cmd_list) && ret;
1096 static int fio_check_clients_timed_out(void)
1098 struct fio_client *client;
1099 struct flist_head *entry, *tmp;
1103 gettimeofday(&tv, NULL);
1105 flist_for_each_safe(entry, tmp, &client_list) {
1106 client = flist_entry(entry, struct fio_client, list);
1108 if (flist_empty(&client->cmd_list))
1111 if (!client_check_cmd_timeout(client, &tv))
1114 if (client->ops->timed_out)
1115 client->ops->timed_out(client);
1117 log_err("fio: client %s timed out\n", client->hostname);
1119 remove_client(client);
1126 int fio_handle_clients(struct client_ops *ops)
1128 struct pollfd *pfds;
1129 int i, ret = 0, retval = 0;
1131 gettimeofday(&eta_tv, NULL);
1133 pfds = malloc(nr_clients * sizeof(struct pollfd));
1135 sum_stat_clients = nr_clients;
1136 init_thread_stat(&client_ts);
1137 init_group_run_stat(&client_gs);
1139 while (!exit_backend && nr_clients) {
1140 struct flist_head *entry, *tmp;
1141 struct fio_client *client;
1144 flist_for_each_safe(entry, tmp, &client_list) {
1145 client = flist_entry(entry, struct fio_client, list);
1147 if (!client->sent_job && !client->ops->stay_connected &&
1148 flist_empty(&client->cmd_list)) {
1149 remove_client(client);
1153 pfds[i].fd = client->fd;
1154 pfds[i].events = POLLIN;
1161 assert(i == nr_clients);
1166 gettimeofday(&tv, NULL);
1167 if (mtime_since(&eta_tv, &tv) >= ops->eta_msec) {
1168 request_client_etas(ops);
1169 memcpy(&eta_tv, &tv, sizeof(tv));
1171 if (fio_check_clients_timed_out())
1175 ret = poll(pfds, nr_clients, 100);
1179 log_err("fio: poll clients: %s\n", strerror(errno));
1185 for (i = 0; i < nr_clients; i++) {
1186 if (!(pfds[i].revents & POLLIN))
1189 client = find_client_by_fd(pfds[i].fd);
1191 log_err("fio: unknown client fd %d\n", pfds[i].fd);
1194 if (!fio_handle_client(client)) {
1195 log_info("client: host=%s disconnected\n",
1197 remove_client(client);
1199 } else if (client->error)
1201 fio_put_client(client);