11 #include <sys/socket.h>
13 #include <netinet/in.h>
14 #include <arpa/inet.h>
28 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
29 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd);
30 static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd);
31 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
32 static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd);
33 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd);
34 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd);
36 static void convert_text(struct fio_net_cmd *cmd);
38 struct client_ops fio_client_ops = {
40 .disk_util = handle_du,
41 .thread_status = handle_ts,
42 .group_stats = handle_gs,
44 .start = handle_start,
45 .eta = display_thread_status,
46 .probe = handle_probe,
47 .eta_msec = FIO_CLIENT_DEF_ETA_MSEC,
48 .client_type = FIO_CLIENT_TYPE_CLI,
51 static struct timeval eta_tv;
53 static FLIST_HEAD(client_list);
54 static FLIST_HEAD(eta_list);
56 static FLIST_HEAD(arg_list);
58 struct thread_stat client_ts;
59 struct group_run_stats client_gs;
62 static int sum_stat_nr;
63 static struct json_object *root = NULL;
64 static struct json_object *job_opt_object = NULL;
65 static struct json_array *clients_array = NULL;
66 static struct json_array *du_array = NULL;
68 static int error_clients;
70 #define FIO_CLIENT_HASH_BITS 7
71 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
72 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
73 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
75 static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *, bool *);
77 static void fio_client_add_hash(struct fio_client *client)
79 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
81 bucket &= FIO_CLIENT_HASH_MASK;
82 flist_add(&client->hash_list, &client_hash[bucket]);
85 static void fio_client_remove_hash(struct fio_client *client)
87 if (!flist_empty(&client->hash_list))
88 flist_del_init(&client->hash_list);
91 static void fio_init fio_client_hash_init(void)
95 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
96 INIT_FLIST_HEAD(&client_hash[i]);
99 static int read_data(int fd, void *data, size_t size)
104 ret = read(fd, data, size);
106 if (errno == EAGAIN || errno == EINTR)
123 static void fio_client_json_init(void)
128 if (!(output_format & FIO_OUTPUT_JSON))
132 os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
133 time_buf[strlen(time_buf) - 1] = '\0';
135 root = json_create_object();
136 json_object_add_value_string(root, "fio version", fio_version_string);
137 json_object_add_value_int(root, "timestamp", time_p);
138 json_object_add_value_string(root, "time", time_buf);
140 job_opt_object = json_create_object();
141 json_object_add_value_object(root, "global options", job_opt_object);
142 clients_array = json_create_array();
143 json_object_add_value_array(root, "client_stats", clients_array);
144 du_array = json_create_array();
145 json_object_add_value_array(root, "disk_util", du_array);
148 static void fio_client_json_fini(void)
150 if (!(output_format & FIO_OUTPUT_JSON))
154 json_print_object(root, NULL);
156 json_free_object(root);
158 clients_array = NULL;
162 static struct fio_client *find_client_by_fd(int fd)
164 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
165 struct fio_client *client;
166 struct flist_head *entry;
168 flist_for_each(entry, &client_hash[bucket]) {
169 client = flist_entry(entry, struct fio_client, hash_list);
171 if (client->fd == fd) {
180 void fio_put_client(struct fio_client *client)
185 free(client->hostname);
190 while (client->nr_files) {
191 struct client_file *cf = &client->files[--client->nr_files];
197 if (client->opt_lists)
198 free(client->opt_lists);
200 if (!client->did_stat)
209 static int fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
211 if (!--eta->pending) {
220 static void fio_drain_client_text(struct fio_client *client)
223 struct fio_net_cmd *cmd;
225 cmd = fio_net_recv_cmd(client->fd, false);
229 if (cmd->opcode == FIO_NET_CMD_TEXT) {
231 client->ops->text(client, cmd);
238 static void remove_client(struct fio_client *client)
240 assert(client->refs);
242 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
244 fio_drain_client_text(client);
246 if (!flist_empty(&client->list))
247 flist_del_init(&client->list);
249 fio_client_remove_hash(client);
251 if (!flist_empty(&client->eta_list)) {
252 flist_del_init(&client->eta_list);
253 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
259 if (client->ops->removed)
260 client->ops->removed(client);
263 fio_put_client(client);
266 struct fio_client *fio_get_client(struct fio_client *client)
272 static void __fio_client_add_cmd_option(struct fio_client *client,
277 index = client->argc++;
278 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
279 client->argv[index] = strdup(opt);
280 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
283 void fio_client_add_cmd_option(void *cookie, const char *opt)
285 struct fio_client *client = cookie;
286 struct flist_head *entry;
291 __fio_client_add_cmd_option(client, opt);
294 * Duplicate arguments to shared client group
296 flist_for_each(entry, &arg_list) {
297 client = flist_entry(entry, struct fio_client, arg_list);
299 __fio_client_add_cmd_option(client, opt);
303 struct fio_client *fio_client_add_explicit(struct client_ops *ops,
304 const char *hostname, int type,
307 struct fio_client *client;
309 client = malloc(sizeof(*client));
310 memset(client, 0, sizeof(*client));
312 INIT_FLIST_HEAD(&client->list);
313 INIT_FLIST_HEAD(&client->hash_list);
314 INIT_FLIST_HEAD(&client->arg_list);
315 INIT_FLIST_HEAD(&client->eta_list);
316 INIT_FLIST_HEAD(&client->cmd_list);
318 client->hostname = strdup(hostname);
320 if (type == Fio_client_socket)
325 ipv6 = type == Fio_client_ipv6;
326 if (fio_server_parse_host(hostname, ipv6,
327 &client->addr.sin_addr,
328 &client->addr6.sin6_addr))
337 client->type = ops->client_type;
339 __fio_client_add_cmd_option(client, "fio");
341 flist_add(&client->list, &client_list);
343 dprint(FD_NET, "client: added <%s>\n", client->hostname);
350 int fio_client_add_ini_file(void *cookie, const char *ini_file, int remote)
352 struct fio_client *client = cookie;
353 struct client_file *cf;
360 dprint(FD_NET, "client <%s>: add ini %s\n", client->hostname, ini_file);
362 new_size = (client->nr_files + 1) * sizeof(struct client_file);
363 new_files = realloc(client->files, new_size);
367 client->files = new_files;
368 cf = &client->files[client->nr_files];
369 cf->file = strdup(ini_file);
375 int fio_client_add(struct client_ops *ops, const char *hostname, void **cookie)
377 struct fio_client *existing = *cookie;
378 struct fio_client *client;
382 * We always add our "exec" name as the option, hence 1
385 if (existing->argc == 1)
386 flist_add_tail(&existing->arg_list, &arg_list);
388 while (!flist_empty(&arg_list))
389 flist_del_init(arg_list.next);
393 client = malloc(sizeof(*client));
394 memset(client, 0, sizeof(*client));
396 INIT_FLIST_HEAD(&client->list);
397 INIT_FLIST_HEAD(&client->hash_list);
398 INIT_FLIST_HEAD(&client->arg_list);
399 INIT_FLIST_HEAD(&client->eta_list);
400 INIT_FLIST_HEAD(&client->cmd_list);
402 if (fio_server_parse_string(hostname, &client->hostname,
403 &client->is_sock, &client->port,
404 &client->addr.sin_addr,
405 &client->addr6.sin6_addr,
412 client->type = ops->client_type;
414 __fio_client_add_cmd_option(client, "fio");
416 flist_add(&client->list, &client_list);
418 dprint(FD_NET, "client: added <%s>\n", client->hostname);
423 static const char *server_name(struct fio_client *client, char *buf,
429 from = inet_ntop(AF_INET6, (struct sockaddr *) &client->addr6.sin6_addr, buf, bufsize);
430 else if (client->is_sock)
433 from = inet_ntop(AF_INET, (struct sockaddr *) &client->addr.sin_addr, buf, bufsize);
438 static void probe_client(struct fio_client *client)
440 struct cmd_client_probe_pdu pdu;
445 dprint(FD_NET, "client: send probe\n");
448 pdu.flags = __le64_to_cpu(FIO_PROBE_FLAG_ZLIB);
453 sname = server_name(client, buf, sizeof(buf));
454 memset(pdu.server, 0, sizeof(pdu.server));
455 strncpy((char *) pdu.server, sname, sizeof(pdu.server) - 1);
457 fio_net_send_cmd(client->fd, FIO_NET_CMD_PROBE, &pdu, sizeof(pdu), &tag, &client->cmd_list);
460 static int fio_client_connect_ip(struct fio_client *client)
462 struct sockaddr *addr;
467 client->addr6.sin6_family = AF_INET6;
468 client->addr6.sin6_port = htons(client->port);
470 addr = (struct sockaddr *) &client->addr6;
471 socklen = sizeof(client->addr6);
473 client->addr.sin_family = AF_INET;
474 client->addr.sin_port = htons(client->port);
476 addr = (struct sockaddr *) &client->addr;
477 socklen = sizeof(client->addr);
480 fd = socket(domain, SOCK_STREAM, 0);
484 log_err("fio: socket: %s\n", strerror(errno));
488 if (connect(fd, addr, socklen) < 0) {
491 log_err("fio: connect: %s\n", strerror(errno));
492 log_err("fio: failed to connect to %s:%u\n", client->hostname,
501 static int fio_client_connect_sock(struct fio_client *client)
503 struct sockaddr_un *addr = &client->addr_un;
507 memset(addr, 0, sizeof(*addr));
508 addr->sun_family = AF_UNIX;
509 strncpy(addr->sun_path, client->hostname, sizeof(addr->sun_path) - 1);
511 fd = socket(AF_UNIX, SOCK_STREAM, 0);
515 log_err("fio: socket: %s\n", strerror(errno));
519 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
520 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
523 log_err("fio: connect; %s\n", strerror(errno));
531 int fio_client_connect(struct fio_client *client)
535 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
538 fd = fio_client_connect_sock(client);
540 fd = fio_client_connect_ip(client);
542 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
548 fio_client_add_hash(client);
549 client->state = Client_connected;
551 probe_client(client);
555 int fio_client_terminate(struct fio_client *client)
557 return fio_net_send_quit(client->fd);
560 void fio_clients_terminate(void)
562 struct flist_head *entry;
563 struct fio_client *client;
565 dprint(FD_NET, "client: terminate clients\n");
567 flist_for_each(entry, &client_list) {
568 client = flist_entry(entry, struct fio_client, list);
569 fio_client_terminate(client);
573 static void sig_int(int sig)
575 dprint(FD_NET, "client: got signal %d\n", sig);
576 fio_clients_terminate();
579 static void client_signal_handler(void)
581 struct sigaction act;
583 memset(&act, 0, sizeof(act));
584 act.sa_handler = sig_int;
585 act.sa_flags = SA_RESTART;
586 sigaction(SIGINT, &act, NULL);
588 memset(&act, 0, sizeof(act));
589 act.sa_handler = sig_int;
590 act.sa_flags = SA_RESTART;
591 sigaction(SIGTERM, &act, NULL);
593 /* Windows uses SIGBREAK as a quit signal from other applications */
595 memset(&act, 0, sizeof(act));
596 act.sa_handler = sig_int;
597 act.sa_flags = SA_RESTART;
598 sigaction(SIGBREAK, &act, NULL);
601 memset(&act, 0, sizeof(act));
602 act.sa_handler = sig_show_status;
603 act.sa_flags = SA_RESTART;
604 sigaction(SIGUSR1, &act, NULL);
607 static int send_client_cmd_line(struct fio_client *client)
609 struct cmd_single_line_pdu *cslp;
610 struct cmd_line_pdu *clp;
611 unsigned long offset;
617 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
619 lens = malloc(client->argc * sizeof(unsigned int));
622 * Find out how much mem we need
624 for (i = 0, mem = 0; i < client->argc; i++) {
625 lens[i] = strlen(client->argv[i]) + 1;
630 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
632 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
636 offset = sizeof(*clp);
638 for (i = 0; i < client->argc; i++) {
639 uint16_t arg_len = lens[i];
642 strcpy((char *) cslp->text, client->argv[i]);
643 cslp->len = cpu_to_le16(arg_len);
644 offset += sizeof(*cslp) + arg_len;
648 clp->lines = cpu_to_le16(client->argc);
649 clp->client_type = __cpu_to_le16(client->type);
650 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, NULL, NULL);
655 int fio_clients_connect(void)
657 struct fio_client *client;
658 struct flist_head *entry, *tmp;
663 WSAStartup(MAKEWORD(2, 2), &wsd);
666 dprint(FD_NET, "client: connect all\n");
668 client_signal_handler();
670 flist_for_each_safe(entry, tmp, &client_list) {
671 client = flist_entry(entry, struct fio_client, list);
673 ret = fio_client_connect(client);
675 remove_client(client);
679 if (client->argc > 1)
680 send_client_cmd_line(client);
686 int fio_start_client(struct fio_client *client)
688 dprint(FD_NET, "client: start %s\n", client->hostname);
689 return fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_RUN, 0, NULL);
692 int fio_start_all_clients(void)
694 struct fio_client *client;
695 struct flist_head *entry, *tmp;
698 dprint(FD_NET, "client: start all\n");
700 fio_client_json_init();
702 flist_for_each_safe(entry, tmp, &client_list) {
703 client = flist_entry(entry, struct fio_client, list);
705 ret = fio_start_client(client);
707 remove_client(client);
712 return flist_empty(&client_list);
715 static int __fio_client_send_remote_ini(struct fio_client *client,
716 const char *filename)
718 struct cmd_load_file_pdu *pdu;
722 dprint(FD_NET, "send remote ini %s to %s\n", filename, client->hostname);
724 p_size = sizeof(*pdu) + strlen(filename) + 1;
725 pdu = malloc(p_size);
726 memset(pdu, 0, p_size);
727 pdu->name_len = strlen(filename);
728 strcpy((char *) pdu->file, filename);
729 pdu->client_type = cpu_to_le16((uint16_t) client->type);
731 client->sent_job = 1;
732 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_LOAD_FILE, pdu, p_size,NULL, NULL);
738 * Send file contents to server backend. We could use sendfile(), but to remain
739 * more portable lets just read/write the darn thing.
741 static int __fio_client_send_local_ini(struct fio_client *client,
742 const char *filename)
744 struct cmd_job_pdu *pdu;
752 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
754 fd = open(filename, O_RDONLY);
757 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
761 if (fstat(fd, &sb) < 0) {
763 log_err("fio: job file stat: %s\n", strerror(errno));
768 p_size = sb.st_size + sizeof(*pdu);
769 pdu = malloc(p_size);
774 if (read_data(fd, p, len)) {
775 log_err("fio: failed reading job file %s\n", filename);
781 pdu->buf_len = __cpu_to_le32(sb.st_size);
782 pdu->client_type = cpu_to_le32(client->type);
784 client->sent_job = 1;
785 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, pdu, p_size, NULL, NULL);
791 int fio_client_send_ini(struct fio_client *client, const char *filename,
797 ret = __fio_client_send_local_ini(client, filename);
799 ret = __fio_client_send_remote_ini(client, filename);
802 client->sent_job = 1;
807 static int fio_client_send_cf(struct fio_client *client,
808 struct client_file *cf)
810 return fio_client_send_ini(client, cf->file, cf->remote);
813 int fio_clients_send_ini(const char *filename)
815 struct fio_client *client;
816 struct flist_head *entry, *tmp;
818 flist_for_each_safe(entry, tmp, &client_list) {
819 client = flist_entry(entry, struct fio_client, list);
821 if (client->nr_files) {
824 for (i = 0; i < client->nr_files; i++) {
825 struct client_file *cf;
827 cf = &client->files[i];
829 if (fio_client_send_cf(client, cf)) {
830 remove_client(client);
835 if (client->sent_job)
837 if (!filename || fio_client_send_ini(client, filename, 0))
838 remove_client(client);
844 int fio_client_update_options(struct fio_client *client,
845 struct thread_options *o, uint64_t *tag)
847 struct cmd_add_job_pdu pdu;
849 pdu.thread_number = cpu_to_le32(client->thread_number);
850 pdu.groupid = cpu_to_le32(client->groupid);
851 convert_thread_options_to_net(&pdu.top, o);
853 return fio_net_send_cmd(client->fd, FIO_NET_CMD_UPDATE_JOB, &pdu, sizeof(pdu), tag, &client->cmd_list);
856 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
858 dst->max_val = le64_to_cpu(src->max_val);
859 dst->min_val = le64_to_cpu(src->min_val);
860 dst->samples = le64_to_cpu(src->samples);
863 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
865 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
866 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
869 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
873 dst->error = le32_to_cpu(src->error);
874 dst->thread_number = le32_to_cpu(src->thread_number);
875 dst->groupid = le32_to_cpu(src->groupid);
876 dst->pid = le32_to_cpu(src->pid);
877 dst->members = le32_to_cpu(src->members);
878 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
880 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
881 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
882 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
883 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
884 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
887 dst->usr_time = le64_to_cpu(src->usr_time);
888 dst->sys_time = le64_to_cpu(src->sys_time);
889 dst->ctx = le64_to_cpu(src->ctx);
890 dst->minf = le64_to_cpu(src->minf);
891 dst->majf = le64_to_cpu(src->majf);
892 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
893 dst->percentile_precision = le64_to_cpu(src->percentile_precision);
895 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
896 fio_fp64_t *fps = &src->percentile_list[i];
897 fio_fp64_t *fpd = &dst->percentile_list[i];
899 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
902 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
903 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
904 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
905 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
908 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
909 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
910 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
913 for (i = 0; i < DDIR_RWDIR_CNT; i++)
914 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
915 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
917 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
918 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
919 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
920 dst->drop_io_u[i] = le64_to_cpu(src->drop_io_u[i]);
923 dst->total_submit = le64_to_cpu(src->total_submit);
924 dst->total_complete = le64_to_cpu(src->total_complete);
926 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
927 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
928 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
931 dst->total_run_time = le64_to_cpu(src->total_run_time);
932 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
933 dst->total_err_count = le64_to_cpu(src->total_err_count);
934 dst->first_error = le32_to_cpu(src->first_error);
935 dst->kb_base = le32_to_cpu(src->kb_base);
936 dst->unit_base = le32_to_cpu(src->unit_base);
938 dst->latency_depth = le32_to_cpu(src->latency_depth);
939 dst->latency_target = le64_to_cpu(src->latency_target);
940 dst->latency_window = le64_to_cpu(src->latency_window);
941 dst->latency_percentile.u.f = fio_uint64_to_double(le64_to_cpu(src->latency_percentile.u.i));
943 dst->nr_block_infos = le64_to_cpu(src->nr_block_infos);
944 for (i = 0; i < dst->nr_block_infos; i++)
945 dst->block_infos[i] = le32_to_cpu(src->block_infos[i]);
948 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
952 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
953 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
954 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
955 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
956 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
957 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
958 dst->agg[i] = le64_to_cpu(src->agg[i]);
961 dst->kb_base = le32_to_cpu(src->kb_base);
962 dst->unit_base = le32_to_cpu(src->unit_base);
963 dst->groupid = le32_to_cpu(src->groupid);
964 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
967 static void json_object_add_client_info(struct json_object *obj,
968 struct fio_client *client)
970 const char *hostname = client->hostname ? client->hostname : "";
972 json_object_add_value_string(obj, "hostname", hostname);
973 json_object_add_value_int(obj, "port", client->port);
976 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
978 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
979 struct flist_head *opt_list = NULL;
980 struct json_object *tsobj;
982 if (client->opt_lists && p->ts.thread_number <= client->jobs)
983 opt_list = &client->opt_lists[p->ts.thread_number - 1];
985 tsobj = show_thread_status(&p->ts, &p->rs, opt_list, NULL);
986 client->did_stat = 1;
988 json_object_add_client_info(tsobj, client);
989 json_array_add_value_object(clients_array, tsobj);
992 if (sum_stat_clients <= 1)
995 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr == 1);
996 sum_group_stats(&client_gs, &p->rs);
999 client_ts.thread_number = p->ts.thread_number;
1000 client_ts.groupid = p->ts.groupid;
1001 client_ts.unified_rw_rep = p->ts.unified_rw_rep;
1003 if (++sum_stat_nr == sum_stat_clients) {
1004 strcpy(client_ts.name, "All clients");
1005 tsobj = show_thread_status(&client_ts, &client_gs, NULL, NULL);
1007 json_object_add_client_info(tsobj, client);
1008 json_array_add_value_object(clients_array, tsobj);
1013 static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
1015 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
1017 if (output_format & FIO_OUTPUT_NORMAL)
1018 show_group_stats(gs, NULL);
1021 static void handle_job_opt(struct fio_client *client, struct fio_net_cmd *cmd)
1023 struct cmd_job_option *pdu = (struct cmd_job_option *) cmd->payload;
1024 struct print_option *p;
1026 if (!job_opt_object)
1029 pdu->global = le16_to_cpu(pdu->global);
1030 pdu->truncated = le16_to_cpu(pdu->truncated);
1031 pdu->groupid = le32_to_cpu(pdu->groupid);
1033 p = malloc(sizeof(*p));
1034 p->name = strdup((char *) pdu->name);
1035 if (pdu->value[0] != '\0')
1036 p->value = strdup((char *) pdu->value);
1041 const char *pos = "";
1046 json_object_add_value_string(job_opt_object, p->name, pos);
1047 } else if (client->opt_lists) {
1048 struct flist_head *opt_list = &client->opt_lists[pdu->groupid];
1050 flist_add_tail(&p->list, opt_list);
1054 static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
1056 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
1057 const char *buf = (const char *) pdu->buf;
1061 name = client->name ? client->name : client->hostname;
1063 if (!client->skip_newline)
1064 fprintf(f_out, "<%s> ", name);
1065 ret = fwrite(buf, pdu->buf_len, 1, f_out);
1067 client->skip_newline = strchr(buf, '\n') == NULL;
1070 static void convert_agg(struct disk_util_agg *agg)
1074 for (i = 0; i < 2; i++) {
1075 agg->ios[i] = le64_to_cpu(agg->ios[i]);
1076 agg->merges[i] = le64_to_cpu(agg->merges[i]);
1077 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
1078 agg->ticks[i] = le64_to_cpu(agg->ticks[i]);
1081 agg->io_ticks = le64_to_cpu(agg->io_ticks);
1082 agg->time_in_queue = le64_to_cpu(agg->time_in_queue);
1083 agg->slavecount = le32_to_cpu(agg->slavecount);
1084 agg->max_util.u.f = fio_uint64_to_double(le64_to_cpu(agg->max_util.u.i));
1087 static void convert_dus(struct disk_util_stat *dus)
1091 for (i = 0; i < 2; i++) {
1092 dus->s.ios[i] = le64_to_cpu(dus->s.ios[i]);
1093 dus->s.merges[i] = le64_to_cpu(dus->s.merges[i]);
1094 dus->s.sectors[i] = le64_to_cpu(dus->s.sectors[i]);
1095 dus->s.ticks[i] = le64_to_cpu(dus->s.ticks[i]);
1098 dus->s.io_ticks = le64_to_cpu(dus->s.io_ticks);
1099 dus->s.time_in_queue = le64_to_cpu(dus->s.time_in_queue);
1100 dus->s.msec = le64_to_cpu(dus->s.msec);
1103 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
1105 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
1107 if (!client->disk_stats_shown) {
1108 client->disk_stats_shown = 1;
1109 log_info("\nDisk stats (read/write):\n");
1112 if (output_format & FIO_OUTPUT_JSON) {
1113 struct json_object *duobj;
1114 json_array_add_disk_util(&du->dus, &du->agg, du_array);
1115 duobj = json_array_last_value_object(du_array);
1116 json_object_add_client_info(duobj, client);
1118 if (output_format & FIO_OUTPUT_TERSE)
1119 print_disk_util(&du->dus, &du->agg, 1, NULL);
1120 if (output_format & FIO_OUTPUT_NORMAL)
1121 print_disk_util(&du->dus, &du->agg, 0, NULL);
1124 static void convert_jobs_eta(struct jobs_eta *je)
1128 je->nr_running = le32_to_cpu(je->nr_running);
1129 je->nr_ramp = le32_to_cpu(je->nr_ramp);
1130 je->nr_pending = le32_to_cpu(je->nr_pending);
1131 je->nr_setting_up = le32_to_cpu(je->nr_setting_up);
1132 je->files_open = le32_to_cpu(je->files_open);
1134 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1135 je->m_rate[i] = le32_to_cpu(je->m_rate[i]);
1136 je->t_rate[i] = le32_to_cpu(je->t_rate[i]);
1137 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
1138 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
1139 je->rate[i] = le32_to_cpu(je->rate[i]);
1140 je->iops[i] = le32_to_cpu(je->iops[i]);
1143 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
1144 je->eta_sec = le64_to_cpu(je->eta_sec);
1145 je->nr_threads = le32_to_cpu(je->nr_threads);
1146 je->is_pow2 = le32_to_cpu(je->is_pow2);
1147 je->unit_base = le32_to_cpu(je->unit_base);
1150 void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
1154 dst->nr_running += je->nr_running;
1155 dst->nr_ramp += je->nr_ramp;
1156 dst->nr_pending += je->nr_pending;
1157 dst->nr_setting_up += je->nr_setting_up;
1158 dst->files_open += je->files_open;
1160 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1161 dst->m_rate[i] += je->m_rate[i];
1162 dst->t_rate[i] += je->t_rate[i];
1163 dst->m_iops[i] += je->m_iops[i];
1164 dst->t_iops[i] += je->t_iops[i];
1165 dst->rate[i] += je->rate[i];
1166 dst->iops[i] += je->iops[i];
1169 dst->elapsed_sec += je->elapsed_sec;
1171 if (je->eta_sec > dst->eta_sec)
1172 dst->eta_sec = je->eta_sec;
1174 dst->nr_threads += je->nr_threads;
1177 * This wont be correct for multiple strings, but at least it
1178 * works for the basic cases.
1180 strcpy((char *) dst->run_str, (char *) je->run_str);
1183 static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
1185 struct fio_net_cmd_reply *reply = NULL;
1186 struct flist_head *entry;
1188 flist_for_each(entry, &client->cmd_list) {
1189 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1191 if (cmd->tag == (uintptr_t) reply)
1198 log_err("fio: client: unable to find matching tag (%llx)\n", (unsigned long long) cmd->tag);
1202 flist_del(&reply->list);
1203 cmd->tag = reply->saved_tag;
1207 int fio_client_wait_for_reply(struct fio_client *client, uint64_t tag)
1210 struct fio_net_cmd_reply *reply = NULL;
1211 struct flist_head *entry;
1213 flist_for_each(entry, &client->cmd_list) {
1214 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1216 if (tag == (uintptr_t) reply)
1231 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
1233 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
1234 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
1236 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
1238 assert(client->eta_in_flight == eta);
1240 client->eta_in_flight = NULL;
1241 flist_del_init(&client->eta_list);
1242 client->eta_timeouts = 0;
1244 if (client->ops->jobs_eta)
1245 client->ops->jobs_eta(client, je);
1247 fio_client_sum_jobs_eta(&eta->eta, je);
1248 fio_client_dec_jobs_eta(eta, client->ops->eta);
1251 static int fio_client_handle_iolog(struct fio_client *client,
1252 struct fio_net_cmd *cmd)
1254 struct cmd_iolog_pdu *pdu;
1257 pdu = convert_iolog(cmd, &store_direct);
1259 log_err("fio: failed converting IO log\n");
1268 fd = open((const char *) pdu->name,
1269 O_WRONLY | O_CREAT | O_TRUNC, 0644);
1271 log_err("fio: open log: %s\n", strerror(errno));
1275 sz = cmd->pdu_len - sizeof(*pdu);
1276 ret = write(fd, pdu->samples, sz);
1280 log_err("fio: short write on compressed log\n");
1288 f = fopen((const char *) pdu->name, "w");
1290 log_err("fio: fopen log: %s\n", strerror(errno));
1294 flush_samples(f, pdu->samples,
1295 pdu->nr_samples * sizeof(struct io_sample));
1301 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
1303 struct cmd_probe_reply_pdu *probe = (struct cmd_probe_reply_pdu *) cmd->payload;
1304 const char *os, *arch;
1307 os = fio_get_os_string(probe->os);
1311 arch = fio_get_arch_string(probe->arch);
1315 sprintf(bit, "%d-bit", probe->bpp * 8);
1316 probe->flags = le64_to_cpu(probe->flags);
1318 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%s, flags=%lx\n",
1319 probe->hostname, probe->bigendian, bit, os, arch,
1320 probe->fio_version, (unsigned long) probe->flags);
1323 client->name = strdup((char *) probe->hostname);
1326 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
1328 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1330 client->state = Client_started;
1331 client->jobs = le32_to_cpu(pdu->jobs);
1332 client->nr_stat = le32_to_cpu(pdu->stat_outputs);
1337 if (client->opt_lists)
1338 free(client->opt_lists);
1340 client->opt_lists = malloc(client->jobs * sizeof(struct flist_head));
1341 for (i = 0; i < client->jobs; i++)
1342 INIT_FLIST_HEAD(&client->opt_lists[i]);
1345 sum_stat_clients += client->nr_stat;
1348 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
1351 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
1354 static void convert_stop(struct fio_net_cmd *cmd)
1356 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1358 pdu->error = le32_to_cpu(pdu->error);
1361 static void convert_text(struct fio_net_cmd *cmd)
1363 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
1365 pdu->level = le32_to_cpu(pdu->level);
1366 pdu->buf_len = le32_to_cpu(pdu->buf_len);
1367 pdu->log_sec = le64_to_cpu(pdu->log_sec);
1368 pdu->log_usec = le64_to_cpu(pdu->log_usec);
1371 static struct cmd_iolog_pdu *convert_iolog_gz(struct fio_net_cmd *cmd,
1372 struct cmd_iolog_pdu *pdu)
1375 struct cmd_iolog_pdu *ret;
1377 uint32_t nr_samples;
1381 stream.zalloc = Z_NULL;
1382 stream.zfree = Z_NULL;
1383 stream.opaque = Z_NULL;
1384 stream.avail_in = 0;
1385 stream.next_in = Z_NULL;
1387 if (inflateInit(&stream) != Z_OK)
1391 * Get header first, it's not compressed
1393 nr_samples = le64_to_cpu(pdu->nr_samples);
1395 total = nr_samples * __log_entry_sz(le32_to_cpu(pdu->log_offset));
1396 ret = malloc(total + sizeof(*pdu));
1397 ret->nr_samples = nr_samples;
1399 memcpy(ret, pdu, sizeof(*pdu));
1401 p = (void *) ret + sizeof(*pdu);
1403 stream.avail_in = cmd->pdu_len - sizeof(*pdu);
1404 stream.next_in = (void *) pdu + sizeof(*pdu);
1405 while (stream.avail_in) {
1406 unsigned int this_chunk = 65536;
1407 unsigned int this_len;
1410 if (this_chunk > total)
1413 stream.avail_out = this_chunk;
1414 stream.next_out = p;
1415 err = inflate(&stream, Z_NO_FLUSH);
1416 /* may be Z_OK, or Z_STREAM_END */
1418 log_err("fio: inflate error %d\n", err);
1424 this_len = this_chunk - stream.avail_out;
1430 inflateEnd(&stream);
1438 * This has been compressed on the server side, since it can be big.
1441 static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd,
1444 struct cmd_iolog_pdu *pdu = (struct cmd_iolog_pdu *) cmd->payload;
1445 struct cmd_iolog_pdu *ret;
1450 *store_direct = false;
1453 * Convert if compressed and we support it. If it's not
1454 * compressed, we need not do anything.
1456 compressed = le32_to_cpu(pdu->compressed);
1457 if (compressed == XMIT_COMPRESSED) {
1459 log_err("fio: server sent compressed data by mistake\n");
1462 ret = convert_iolog_gz(cmd, pdu);
1463 printf("compressed iolog, %p\n", ret);
1465 log_err("fio: failed decompressing log\n");
1468 } else if (compressed == STORE_COMPRESSED) {
1469 *store_direct = true;
1474 ret->nr_samples = le64_to_cpu(ret->nr_samples);
1475 ret->thread_number = le32_to_cpu(ret->thread_number);
1476 ret->log_type = le32_to_cpu(ret->log_type);
1477 ret->compressed = le32_to_cpu(ret->compressed);
1478 ret->log_offset = le32_to_cpu(ret->log_offset);
1483 samples = &ret->samples[0];
1484 for (i = 0; i < ret->nr_samples; i++) {
1485 struct io_sample *s;
1487 s = __get_sample(samples, ret->log_offset, i);
1488 s->time = le64_to_cpu(s->time);
1489 s->val = le64_to_cpu(s->val);
1490 s->__ddir = le32_to_cpu(s->__ddir);
1491 s->bs = le32_to_cpu(s->bs);
1493 if (ret->log_offset) {
1494 struct io_sample_offset *so = (void *) s;
1496 so->offset = le64_to_cpu(so->offset);
1503 static void sendfile_reply(int fd, struct cmd_sendfile_reply *rep,
1504 size_t size, uint64_t tag)
1506 rep->error = cpu_to_le32(rep->error);
1507 fio_net_send_cmd(fd, FIO_NET_CMD_SENDFILE, rep, size, &tag, NULL);
1510 static int fio_send_file(struct fio_client *client, struct cmd_sendfile *pdu,
1513 struct cmd_sendfile_reply *rep;
1518 size = sizeof(*rep);
1521 if (stat((char *)pdu->path, &sb) < 0) {
1524 sendfile_reply(client->fd, rep, size, tag);
1530 rep = realloc(rep, size);
1531 rep->size = cpu_to_le32((uint32_t) sb.st_size);
1533 fd = open((char *)pdu->path, O_RDONLY);
1537 rep->error = read_data(fd, &rep->data, sb.st_size);
1538 sendfile_reply(client->fd, rep, size, tag);
1544 int fio_handle_client(struct fio_client *client)
1546 struct client_ops *ops = client->ops;
1547 struct fio_net_cmd *cmd;
1549 dprint(FD_NET, "client: handle %s\n", client->hostname);
1551 cmd = fio_net_recv_cmd(client->fd, true);
1555 dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
1556 fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
1558 switch (cmd->opcode) {
1559 case FIO_NET_CMD_QUIT:
1561 ops->quit(client, cmd);
1562 remove_client(client);
1564 case FIO_NET_CMD_TEXT:
1566 ops->text(client, cmd);
1568 case FIO_NET_CMD_DU: {
1569 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
1571 convert_dus(&du->dus);
1572 convert_agg(&du->agg);
1574 ops->disk_util(client, cmd);
1577 case FIO_NET_CMD_TS: {
1578 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
1580 convert_ts(&p->ts, &p->ts);
1581 convert_gs(&p->rs, &p->rs);
1583 ops->thread_status(client, cmd);
1586 case FIO_NET_CMD_GS: {
1587 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
1591 ops->group_stats(client, cmd);
1594 case FIO_NET_CMD_ETA: {
1595 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
1597 remove_reply_cmd(client, cmd);
1598 convert_jobs_eta(je);
1599 handle_eta(client, cmd);
1602 case FIO_NET_CMD_PROBE:
1603 remove_reply_cmd(client, cmd);
1604 ops->probe(client, cmd);
1606 case FIO_NET_CMD_SERVER_START:
1607 client->state = Client_running;
1609 ops->job_start(client, cmd);
1611 case FIO_NET_CMD_START: {
1612 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1614 pdu->jobs = le32_to_cpu(pdu->jobs);
1615 ops->start(client, cmd);
1618 case FIO_NET_CMD_STOP: {
1619 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1622 client->state = Client_stopped;
1623 client->error = le32_to_cpu(pdu->error);
1624 client->signal = le32_to_cpu(pdu->signal);
1625 ops->stop(client, cmd);
1628 case FIO_NET_CMD_ADD_JOB: {
1629 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
1631 client->thread_number = le32_to_cpu(pdu->thread_number);
1632 client->groupid = le32_to_cpu(pdu->groupid);
1635 ops->add_job(client, cmd);
1638 case FIO_NET_CMD_IOLOG:
1639 fio_client_handle_iolog(client, cmd);
1641 case FIO_NET_CMD_UPDATE_JOB:
1642 ops->update_job(client, cmd);
1643 remove_reply_cmd(client, cmd);
1645 case FIO_NET_CMD_VTRIGGER: {
1646 struct all_io_list *pdu = (struct all_io_list *) cmd->payload;
1651 strcpy(buf, aux_path);
1655 __verify_save_state(pdu, server_name(client, &buf[off], sizeof(buf) - off));
1656 exec_trigger(trigger_cmd);
1659 case FIO_NET_CMD_SENDFILE: {
1660 struct cmd_sendfile *pdu = (struct cmd_sendfile *) cmd->payload;
1661 fio_send_file(client, pdu, cmd->tag);
1664 case FIO_NET_CMD_JOB_OPT: {
1665 handle_job_opt(client, cmd);
1669 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
1677 int fio_clients_send_trigger(const char *cmd)
1679 struct flist_head *entry;
1680 struct fio_client *client;
1683 dprint(FD_NET, "client: send vtrigger: %s\n", cmd);
1690 flist_for_each(entry, &client_list) {
1691 struct cmd_vtrigger_pdu *pdu;
1693 client = flist_entry(entry, struct fio_client, list);
1695 pdu = malloc(sizeof(*pdu) + slen);
1696 pdu->len = cpu_to_le16((uint16_t) slen);
1698 memcpy(pdu->cmd, cmd, slen);
1699 fio_net_send_cmd(client->fd, FIO_NET_CMD_VTRIGGER, pdu,
1700 sizeof(*pdu) + slen, NULL, NULL);
1707 static void request_client_etas(struct client_ops *ops)
1709 struct fio_client *client;
1710 struct flist_head *entry;
1711 struct client_eta *eta;
1714 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
1716 eta = calloc(1, sizeof(*eta) + __THREAD_RUNSTR_SZ(REAL_MAX_JOBS));
1717 eta->pending = nr_clients;
1719 flist_for_each(entry, &client_list) {
1720 client = flist_entry(entry, struct fio_client, list);
1722 if (!flist_empty(&client->eta_list)) {
1726 if (client->state != Client_running)
1729 assert(!client->eta_in_flight);
1730 flist_add_tail(&client->eta_list, &eta_list);
1731 client->eta_in_flight = eta;
1732 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
1733 (uintptr_t) eta, &client->cmd_list);
1737 if (!fio_client_dec_jobs_eta(eta, ops->eta))
1741 dprint(FD_NET, "client: requested eta tag %p\n", eta);
1745 * A single SEND_ETA timeout isn't fatal. Attempt to recover.
1747 static int handle_cmd_timeout(struct fio_client *client,
1748 struct fio_net_cmd_reply *reply)
1750 flist_del(&reply->list);
1753 if (reply->opcode != FIO_NET_CMD_SEND_ETA)
1756 log_info("client <%s>: timeout on SEND_ETA\n", client->hostname);
1758 flist_del_init(&client->eta_list);
1759 if (client->eta_in_flight) {
1760 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
1761 client->eta_in_flight = NULL;
1765 * If we fail 5 in a row, give up...
1767 if (client->eta_timeouts++ > 5)
1773 static int client_check_cmd_timeout(struct fio_client *client,
1774 struct timeval *now)
1776 struct fio_net_cmd_reply *reply;
1777 struct flist_head *entry, *tmp;
1780 flist_for_each_safe(entry, tmp, &client->cmd_list) {
1781 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1783 if (mtime_since(&reply->tv, now) < FIO_NET_CLIENT_TIMEOUT)
1786 if (!handle_cmd_timeout(client, reply))
1789 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
1790 fio_server_op(reply->opcode));
1794 return flist_empty(&client->cmd_list) && ret;
1797 static int fio_check_clients_timed_out(void)
1799 struct fio_client *client;
1800 struct flist_head *entry, *tmp;
1804 fio_gettime(&tv, NULL);
1806 flist_for_each_safe(entry, tmp, &client_list) {
1807 client = flist_entry(entry, struct fio_client, list);
1809 if (flist_empty(&client->cmd_list))
1812 if (!client_check_cmd_timeout(client, &tv))
1815 if (client->ops->timed_out)
1816 client->ops->timed_out(client);
1818 log_err("fio: client %s timed out\n", client->hostname);
1820 client->error = ETIMEDOUT;
1821 remove_client(client);
1828 int fio_handle_clients(struct client_ops *ops)
1830 struct pollfd *pfds;
1831 int i, ret = 0, retval = 0;
1833 fio_gettime(&eta_tv, NULL);
1835 pfds = malloc(nr_clients * sizeof(struct pollfd));
1837 init_thread_stat(&client_ts);
1838 init_group_run_stat(&client_gs);
1840 while (!exit_backend && nr_clients) {
1841 struct flist_head *entry, *tmp;
1842 struct fio_client *client;
1845 flist_for_each_safe(entry, tmp, &client_list) {
1846 client = flist_entry(entry, struct fio_client, list);
1848 if (!client->sent_job && !client->ops->stay_connected &&
1849 flist_empty(&client->cmd_list)) {
1850 remove_client(client);
1854 pfds[i].fd = client->fd;
1855 pfds[i].events = POLLIN;
1862 assert(i == nr_clients);
1868 fio_gettime(&tv, NULL);
1869 if (mtime_since(&eta_tv, &tv) >= 900) {
1870 request_client_etas(ops);
1871 memcpy(&eta_tv, &tv, sizeof(tv));
1873 if (fio_check_clients_timed_out())
1877 check_trigger_file();
1879 timeout = min(100u, ops->eta_msec);
1881 ret = poll(pfds, nr_clients, timeout);
1885 log_err("fio: poll clients: %s\n", strerror(errno));
1891 for (i = 0; i < nr_clients; i++) {
1892 if (!(pfds[i].revents & POLLIN))
1895 client = find_client_by_fd(pfds[i].fd);
1897 log_err("fio: unknown client fd %ld\n", (long) pfds[i].fd);
1900 if (!fio_handle_client(client)) {
1901 log_info("client: host=%s disconnected\n",
1903 remove_client(client);
1905 } else if (client->error)
1907 fio_put_client(client);
1911 fio_client_json_fini();
1914 return retval || error_clients;