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 struct client_ops fio_client_ops = {
38 .disk_util = handle_du,
39 .thread_status = handle_ts,
40 .group_stats = handle_gs,
42 .start = handle_start,
43 .eta = display_thread_status,
44 .probe = handle_probe,
45 .eta_msec = FIO_CLIENT_DEF_ETA_MSEC,
46 .client_type = FIO_CLIENT_TYPE_CLI,
49 static struct timeval eta_tv;
51 static FLIST_HEAD(client_list);
52 static FLIST_HEAD(eta_list);
54 static FLIST_HEAD(arg_list);
56 struct thread_stat client_ts;
57 struct group_run_stats client_gs;
60 static int sum_stat_nr;
61 static struct json_object *root = NULL;
62 static struct json_array *clients_array = NULL;
63 static struct json_array *du_array = NULL;
65 static int error_clients;
67 #define FIO_CLIENT_HASH_BITS 7
68 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
69 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
70 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
72 static void fio_client_add_hash(struct fio_client *client)
74 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
76 bucket &= FIO_CLIENT_HASH_MASK;
77 flist_add(&client->hash_list, &client_hash[bucket]);
80 static void fio_client_remove_hash(struct fio_client *client)
82 if (!flist_empty(&client->hash_list))
83 flist_del_init(&client->hash_list);
86 static void fio_init fio_client_hash_init(void)
90 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
91 INIT_FLIST_HEAD(&client_hash[i]);
94 static int read_data(int fd, void *data, size_t size)
99 ret = read(fd, data, size);
101 if (errno == EAGAIN || errno == EINTR)
118 static void fio_client_json_init(void)
120 if (output_format != FIO_OUTPUT_JSON)
122 root = json_create_object();
123 json_object_add_value_string(root, "fio version", fio_version_string);
124 clients_array = json_create_array();
125 json_object_add_value_array(root, "client_stats", clients_array);
126 du_array = json_create_array();
127 json_object_add_value_array(root, "disk_util", du_array);
130 static void fio_client_json_fini(void)
132 if (output_format != FIO_OUTPUT_JSON)
134 json_print_object(root);
136 json_free_object(root);
138 clients_array = NULL;
142 static struct fio_client *find_client_by_fd(int fd)
144 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
145 struct fio_client *client;
146 struct flist_head *entry;
148 flist_for_each(entry, &client_hash[bucket]) {
149 client = flist_entry(entry, struct fio_client, hash_list);
151 if (client->fd == fd) {
160 void fio_put_client(struct fio_client *client)
165 free(client->hostname);
170 while (client->nr_files) {
171 struct client_file *cf = &client->files[--client->nr_files];
178 if (!client->did_stat)
187 static int fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
189 if (!--eta->pending) {
198 static void remove_client(struct fio_client *client)
200 assert(client->refs);
202 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
204 if (!flist_empty(&client->list))
205 flist_del_init(&client->list);
207 fio_client_remove_hash(client);
209 if (!flist_empty(&client->eta_list)) {
210 flist_del_init(&client->eta_list);
211 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
217 if (client->ops->removed)
218 client->ops->removed(client);
221 fio_put_client(client);
224 struct fio_client *fio_get_client(struct fio_client *client)
230 static void __fio_client_add_cmd_option(struct fio_client *client,
235 index = client->argc++;
236 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
237 client->argv[index] = strdup(opt);
238 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
241 void fio_client_add_cmd_option(void *cookie, const char *opt)
243 struct fio_client *client = cookie;
244 struct flist_head *entry;
249 __fio_client_add_cmd_option(client, opt);
252 * Duplicate arguments to shared client group
254 flist_for_each(entry, &arg_list) {
255 client = flist_entry(entry, struct fio_client, arg_list);
257 __fio_client_add_cmd_option(client, opt);
261 struct fio_client *fio_client_add_explicit(struct client_ops *ops,
262 const char *hostname, int type,
265 struct fio_client *client;
267 client = malloc(sizeof(*client));
268 memset(client, 0, sizeof(*client));
270 INIT_FLIST_HEAD(&client->list);
271 INIT_FLIST_HEAD(&client->hash_list);
272 INIT_FLIST_HEAD(&client->arg_list);
273 INIT_FLIST_HEAD(&client->eta_list);
274 INIT_FLIST_HEAD(&client->cmd_list);
276 client->hostname = strdup(hostname);
278 if (type == Fio_client_socket)
283 ipv6 = type == Fio_client_ipv6;
284 if (fio_server_parse_host(hostname, ipv6,
285 &client->addr.sin_addr,
286 &client->addr6.sin6_addr))
295 client->type = ops->client_type;
297 __fio_client_add_cmd_option(client, "fio");
299 flist_add(&client->list, &client_list);
301 dprint(FD_NET, "client: added <%s>\n", client->hostname);
308 int fio_client_add_ini_file(void *cookie, const char *ini_file, int remote)
310 struct fio_client *client = cookie;
311 struct client_file *cf;
318 dprint(FD_NET, "client <%s>: add ini %s\n", client->hostname, ini_file);
320 new_size = (client->nr_files + 1) * sizeof(struct client_file);
321 new_files = realloc(client->files, new_size);
325 client->files = new_files;
326 cf = &client->files[client->nr_files];
327 cf->file = strdup(ini_file);
333 int fio_client_add(struct client_ops *ops, const char *hostname, void **cookie)
335 struct fio_client *existing = *cookie;
336 struct fio_client *client;
340 * We always add our "exec" name as the option, hence 1
343 if (existing->argc == 1)
344 flist_add_tail(&existing->arg_list, &arg_list);
346 while (!flist_empty(&arg_list))
347 flist_del_init(arg_list.next);
351 client = malloc(sizeof(*client));
352 memset(client, 0, sizeof(*client));
354 INIT_FLIST_HEAD(&client->list);
355 INIT_FLIST_HEAD(&client->hash_list);
356 INIT_FLIST_HEAD(&client->arg_list);
357 INIT_FLIST_HEAD(&client->eta_list);
358 INIT_FLIST_HEAD(&client->cmd_list);
360 if (fio_server_parse_string(hostname, &client->hostname,
361 &client->is_sock, &client->port,
362 &client->addr.sin_addr,
363 &client->addr6.sin6_addr,
370 client->type = ops->client_type;
372 __fio_client_add_cmd_option(client, "fio");
374 flist_add(&client->list, &client_list);
376 dprint(FD_NET, "client: added <%s>\n", client->hostname);
381 static const char *server_name(struct fio_client *client, char *buf,
387 from = inet_ntop(AF_INET6, (struct sockaddr *) &client->addr6.sin6_addr, buf, bufsize);
388 else if (client->is_sock)
391 from = inet_ntop(AF_INET, (struct sockaddr *) &client->addr.sin_addr, buf, bufsize);
396 static void probe_client(struct fio_client *client)
398 struct cmd_client_probe_pdu pdu;
403 dprint(FD_NET, "client: send probe\n");
406 pdu.flags = __le64_to_cpu(FIO_PROBE_FLAG_ZLIB);
411 sname = server_name(client, buf, sizeof(buf));
412 memset(pdu.server, 0, sizeof(pdu.server));
413 strncpy((char *) pdu.server, sname, sizeof(pdu.server) - 1);
415 fio_net_send_cmd(client->fd, FIO_NET_CMD_PROBE, &pdu, sizeof(pdu), &tag, &client->cmd_list);
418 static int fio_client_connect_ip(struct fio_client *client)
420 struct sockaddr *addr;
425 client->addr6.sin6_family = AF_INET6;
426 client->addr6.sin6_port = htons(client->port);
428 addr = (struct sockaddr *) &client->addr6;
429 socklen = sizeof(client->addr6);
431 client->addr.sin_family = AF_INET;
432 client->addr.sin_port = htons(client->port);
434 addr = (struct sockaddr *) &client->addr;
435 socklen = sizeof(client->addr);
438 fd = socket(domain, SOCK_STREAM, 0);
442 log_err("fio: socket: %s\n", strerror(errno));
446 if (connect(fd, addr, socklen) < 0) {
449 log_err("fio: connect: %s\n", strerror(errno));
450 log_err("fio: failed to connect to %s:%u\n", client->hostname,
459 static int fio_client_connect_sock(struct fio_client *client)
461 struct sockaddr_un *addr = &client->addr_un;
465 memset(addr, 0, sizeof(*addr));
466 addr->sun_family = AF_UNIX;
467 strncpy(addr->sun_path, client->hostname, sizeof(addr->sun_path) - 1);
469 fd = socket(AF_UNIX, SOCK_STREAM, 0);
473 log_err("fio: socket: %s\n", strerror(errno));
477 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
478 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
481 log_err("fio: connect; %s\n", strerror(errno));
489 int fio_client_connect(struct fio_client *client)
493 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
496 fd = fio_client_connect_sock(client);
498 fd = fio_client_connect_ip(client);
500 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
506 fio_client_add_hash(client);
507 client->state = Client_connected;
509 probe_client(client);
513 int fio_client_terminate(struct fio_client *client)
515 return fio_net_send_quit(client->fd);
518 void fio_clients_terminate(void)
520 struct flist_head *entry;
521 struct fio_client *client;
523 dprint(FD_NET, "client: terminate clients\n");
525 flist_for_each(entry, &client_list) {
526 client = flist_entry(entry, struct fio_client, list);
527 fio_client_terminate(client);
531 static void sig_int(int sig)
533 dprint(FD_NET, "client: got signal %d\n", sig);
534 fio_clients_terminate();
537 static void sig_show_status(int sig)
539 show_running_run_stats();
542 static void client_signal_handler(void)
544 struct sigaction act;
546 memset(&act, 0, sizeof(act));
547 act.sa_handler = sig_int;
548 act.sa_flags = SA_RESTART;
549 sigaction(SIGINT, &act, NULL);
551 memset(&act, 0, sizeof(act));
552 act.sa_handler = sig_int;
553 act.sa_flags = SA_RESTART;
554 sigaction(SIGTERM, &act, NULL);
556 /* Windows uses SIGBREAK as a quit signal from other applications */
558 memset(&act, 0, sizeof(act));
559 act.sa_handler = sig_int;
560 act.sa_flags = SA_RESTART;
561 sigaction(SIGBREAK, &act, NULL);
564 memset(&act, 0, sizeof(act));
565 act.sa_handler = sig_show_status;
566 act.sa_flags = SA_RESTART;
567 sigaction(SIGUSR1, &act, NULL);
570 static int send_client_cmd_line(struct fio_client *client)
572 struct cmd_single_line_pdu *cslp;
573 struct cmd_line_pdu *clp;
574 unsigned long offset;
580 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
582 lens = malloc(client->argc * sizeof(unsigned int));
585 * Find out how much mem we need
587 for (i = 0, mem = 0; i < client->argc; i++) {
588 lens[i] = strlen(client->argv[i]) + 1;
593 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
595 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
599 offset = sizeof(*clp);
601 for (i = 0; i < client->argc; i++) {
602 uint16_t arg_len = lens[i];
605 strcpy((char *) cslp->text, client->argv[i]);
606 cslp->len = cpu_to_le16(arg_len);
607 offset += sizeof(*cslp) + arg_len;
611 clp->lines = cpu_to_le16(client->argc);
612 clp->client_type = __cpu_to_le16(client->type);
613 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, NULL, NULL);
618 int fio_clients_connect(void)
620 struct fio_client *client;
621 struct flist_head *entry, *tmp;
626 WSAStartup(MAKEWORD(2, 2), &wsd);
629 dprint(FD_NET, "client: connect all\n");
631 client_signal_handler();
633 flist_for_each_safe(entry, tmp, &client_list) {
634 client = flist_entry(entry, struct fio_client, list);
636 ret = fio_client_connect(client);
638 remove_client(client);
642 if (client->argc > 1)
643 send_client_cmd_line(client);
649 int fio_start_client(struct fio_client *client)
651 dprint(FD_NET, "client: start %s\n", client->hostname);
652 return fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_RUN, 0, NULL);
655 int fio_start_all_clients(void)
657 struct fio_client *client;
658 struct flist_head *entry, *tmp;
661 dprint(FD_NET, "client: start all\n");
663 fio_client_json_init();
665 flist_for_each_safe(entry, tmp, &client_list) {
666 client = flist_entry(entry, struct fio_client, list);
668 ret = fio_start_client(client);
670 remove_client(client);
675 return flist_empty(&client_list);
678 static int __fio_client_send_remote_ini(struct fio_client *client,
679 const char *filename)
681 struct cmd_load_file_pdu *pdu;
685 dprint(FD_NET, "send remote ini %s to %s\n", filename, client->hostname);
687 p_size = sizeof(*pdu) + strlen(filename) + 1;
688 pdu = malloc(p_size);
689 memset(pdu, 0, p_size);
690 pdu->name_len = strlen(filename);
691 strcpy((char *) pdu->file, filename);
692 pdu->client_type = cpu_to_le16((uint16_t) client->type);
694 client->sent_job = 1;
695 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_LOAD_FILE, pdu, p_size,NULL, NULL);
701 * Send file contents to server backend. We could use sendfile(), but to remain
702 * more portable lets just read/write the darn thing.
704 static int __fio_client_send_local_ini(struct fio_client *client,
705 const char *filename)
707 struct cmd_job_pdu *pdu;
715 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
717 fd = open(filename, O_RDONLY);
720 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
724 if (fstat(fd, &sb) < 0) {
726 log_err("fio: job file stat: %s\n", strerror(errno));
731 p_size = sb.st_size + sizeof(*pdu);
732 pdu = malloc(p_size);
737 if (read_data(fd, p, len)) {
738 log_err("fio: failed reading job file %s\n", filename);
744 pdu->buf_len = __cpu_to_le32(sb.st_size);
745 pdu->client_type = cpu_to_le32(client->type);
747 client->sent_job = 1;
748 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, pdu, p_size, NULL, NULL);
754 int fio_client_send_ini(struct fio_client *client, const char *filename,
760 ret = __fio_client_send_local_ini(client, filename);
762 ret = __fio_client_send_remote_ini(client, filename);
765 client->sent_job = 1;
770 static int fio_client_send_cf(struct fio_client *client,
771 struct client_file *cf)
773 return fio_client_send_ini(client, cf->file, cf->remote);
776 int fio_clients_send_ini(const char *filename)
778 struct fio_client *client;
779 struct flist_head *entry, *tmp;
781 flist_for_each_safe(entry, tmp, &client_list) {
782 client = flist_entry(entry, struct fio_client, list);
784 if (client->nr_files) {
787 for (i = 0; i < client->nr_files; i++) {
788 struct client_file *cf;
790 cf = &client->files[i];
792 if (fio_client_send_cf(client, cf)) {
793 remove_client(client);
798 if (client->sent_job)
800 if (!filename || fio_client_send_ini(client, filename, 0))
801 remove_client(client);
807 int fio_client_update_options(struct fio_client *client,
808 struct thread_options *o, uint64_t *tag)
810 struct cmd_add_job_pdu pdu;
812 pdu.thread_number = cpu_to_le32(client->thread_number);
813 pdu.groupid = cpu_to_le32(client->groupid);
814 convert_thread_options_to_net(&pdu.top, o);
816 return fio_net_send_cmd(client->fd, FIO_NET_CMD_UPDATE_JOB, &pdu, sizeof(pdu), tag, &client->cmd_list);
819 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
821 dst->max_val = le64_to_cpu(src->max_val);
822 dst->min_val = le64_to_cpu(src->min_val);
823 dst->samples = le64_to_cpu(src->samples);
826 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
828 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
829 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
832 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
836 dst->error = le32_to_cpu(src->error);
837 dst->thread_number = le32_to_cpu(src->thread_number);
838 dst->groupid = le32_to_cpu(src->groupid);
839 dst->pid = le32_to_cpu(src->pid);
840 dst->members = le32_to_cpu(src->members);
841 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
843 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
844 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
845 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
846 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
847 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
850 dst->usr_time = le64_to_cpu(src->usr_time);
851 dst->sys_time = le64_to_cpu(src->sys_time);
852 dst->ctx = le64_to_cpu(src->ctx);
853 dst->minf = le64_to_cpu(src->minf);
854 dst->majf = le64_to_cpu(src->majf);
855 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
856 dst->percentile_precision = le64_to_cpu(src->percentile_precision);
858 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
859 fio_fp64_t *fps = &src->percentile_list[i];
860 fio_fp64_t *fpd = &dst->percentile_list[i];
862 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
865 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
866 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
867 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
868 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
871 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
872 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
873 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
876 for (i = 0; i < DDIR_RWDIR_CNT; i++)
877 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
878 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
880 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
881 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
882 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
883 dst->drop_io_u[i] = le64_to_cpu(src->drop_io_u[i]);
886 dst->total_submit = le64_to_cpu(src->total_submit);
887 dst->total_complete = le64_to_cpu(src->total_complete);
889 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
890 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
891 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
894 dst->total_run_time = le64_to_cpu(src->total_run_time);
895 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
896 dst->total_err_count = le64_to_cpu(src->total_err_count);
897 dst->first_error = le32_to_cpu(src->first_error);
898 dst->kb_base = le32_to_cpu(src->kb_base);
899 dst->unit_base = le32_to_cpu(src->unit_base);
901 dst->latency_depth = le32_to_cpu(src->latency_depth);
902 dst->latency_target = le64_to_cpu(src->latency_target);
903 dst->latency_window = le64_to_cpu(src->latency_window);
904 dst->latency_percentile.u.f = fio_uint64_to_double(le64_to_cpu(src->latency_percentile.u.i));
906 dst->nr_block_infos = le64_to_cpu(src->nr_block_infos);
907 for (i = 0; i < dst->nr_block_infos; i++)
908 dst->block_infos[i] = le32_to_cpu(src->block_infos[i]);
911 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
915 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
916 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
917 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
918 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
919 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
920 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
921 dst->agg[i] = le64_to_cpu(src->agg[i]);
924 dst->kb_base = le32_to_cpu(src->kb_base);
925 dst->unit_base = le32_to_cpu(src->unit_base);
926 dst->groupid = le32_to_cpu(src->groupid);
927 dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
930 static void json_object_add_client_info(struct json_object *obj,
931 struct fio_client *client)
933 const char *hostname = client->hostname ? client->hostname : "";
935 json_object_add_value_string(obj, "hostname", hostname);
936 json_object_add_value_int(obj, "port", client->port);
939 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
941 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
942 struct json_object *tsobj;
944 tsobj = show_thread_status(&p->ts, &p->rs);
945 client->did_stat = 1;
947 json_object_add_client_info(tsobj, client);
948 json_array_add_value_object(clients_array, tsobj);
951 if (sum_stat_clients <= 1)
954 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
955 sum_group_stats(&client_gs, &p->rs);
958 client_ts.thread_number = p->ts.thread_number;
959 client_ts.groupid = p->ts.groupid;
960 client_ts.unified_rw_rep = p->ts.unified_rw_rep;
962 if (++sum_stat_nr == sum_stat_clients) {
963 strcpy(client_ts.name, "All clients");
964 tsobj = show_thread_status(&client_ts, &client_gs);
966 json_object_add_client_info(tsobj, client);
967 json_array_add_value_object(clients_array, tsobj);
972 static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
974 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
976 show_group_stats(gs);
979 static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
981 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
982 const char *buf = (const char *) pdu->buf;
986 name = client->name ? client->name : client->hostname;
988 if (!client->skip_newline)
989 fprintf(f_out, "<%s> ", name);
990 ret = fwrite(buf, pdu->buf_len, 1, f_out);
992 client->skip_newline = strchr(buf, '\n') == NULL;
995 static void convert_agg(struct disk_util_agg *agg)
999 for (i = 0; i < 2; i++) {
1000 agg->ios[i] = le64_to_cpu(agg->ios[i]);
1001 agg->merges[i] = le64_to_cpu(agg->merges[i]);
1002 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
1003 agg->ticks[i] = le64_to_cpu(agg->ticks[i]);
1006 agg->io_ticks = le64_to_cpu(agg->io_ticks);
1007 agg->time_in_queue = le64_to_cpu(agg->time_in_queue);
1008 agg->slavecount = le32_to_cpu(agg->slavecount);
1009 agg->max_util.u.f = fio_uint64_to_double(le64_to_cpu(agg->max_util.u.i));
1012 static void convert_dus(struct disk_util_stat *dus)
1016 for (i = 0; i < 2; i++) {
1017 dus->s.ios[i] = le64_to_cpu(dus->s.ios[i]);
1018 dus->s.merges[i] = le64_to_cpu(dus->s.merges[i]);
1019 dus->s.sectors[i] = le64_to_cpu(dus->s.sectors[i]);
1020 dus->s.ticks[i] = le64_to_cpu(dus->s.ticks[i]);
1023 dus->s.io_ticks = le64_to_cpu(dus->s.io_ticks);
1024 dus->s.time_in_queue = le64_to_cpu(dus->s.time_in_queue);
1025 dus->s.msec = le64_to_cpu(dus->s.msec);
1028 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
1030 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
1032 if (!client->disk_stats_shown) {
1033 client->disk_stats_shown = 1;
1034 log_info("\nDisk stats (read/write):\n");
1037 if (output_format == FIO_OUTPUT_JSON) {
1038 struct json_object *duobj;
1039 json_array_add_disk_util(&du->dus, &du->agg, du_array);
1040 duobj = json_array_last_value_object(du_array);
1041 json_object_add_client_info(duobj, client);
1043 print_disk_util(&du->dus, &du->agg, output_format == FIO_OUTPUT_TERSE);
1046 static void convert_jobs_eta(struct jobs_eta *je)
1050 je->nr_running = le32_to_cpu(je->nr_running);
1051 je->nr_ramp = le32_to_cpu(je->nr_ramp);
1052 je->nr_pending = le32_to_cpu(je->nr_pending);
1053 je->nr_setting_up = le32_to_cpu(je->nr_setting_up);
1054 je->files_open = le32_to_cpu(je->files_open);
1056 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1057 je->m_rate[i] = le32_to_cpu(je->m_rate[i]);
1058 je->t_rate[i] = le32_to_cpu(je->t_rate[i]);
1059 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
1060 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
1061 je->rate[i] = le32_to_cpu(je->rate[i]);
1062 je->iops[i] = le32_to_cpu(je->iops[i]);
1065 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
1066 je->eta_sec = le64_to_cpu(je->eta_sec);
1067 je->nr_threads = le32_to_cpu(je->nr_threads);
1068 je->is_pow2 = le32_to_cpu(je->is_pow2);
1069 je->unit_base = le32_to_cpu(je->unit_base);
1072 void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
1076 dst->nr_running += je->nr_running;
1077 dst->nr_ramp += je->nr_ramp;
1078 dst->nr_pending += je->nr_pending;
1079 dst->nr_setting_up += je->nr_setting_up;
1080 dst->files_open += je->files_open;
1082 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1083 dst->m_rate[i] += je->m_rate[i];
1084 dst->t_rate[i] += je->t_rate[i];
1085 dst->m_iops[i] += je->m_iops[i];
1086 dst->t_iops[i] += je->t_iops[i];
1087 dst->rate[i] += je->rate[i];
1088 dst->iops[i] += je->iops[i];
1091 dst->elapsed_sec += je->elapsed_sec;
1093 if (je->eta_sec > dst->eta_sec)
1094 dst->eta_sec = je->eta_sec;
1096 dst->nr_threads += je->nr_threads;
1099 * This wont be correct for multiple strings, but at least it
1100 * works for the basic cases.
1102 strcpy((char *) dst->run_str, (char *) je->run_str);
1105 static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
1107 struct fio_net_cmd_reply *reply = NULL;
1108 struct flist_head *entry;
1110 flist_for_each(entry, &client->cmd_list) {
1111 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1113 if (cmd->tag == (uintptr_t) reply)
1120 log_err("fio: client: unable to find matching tag (%llx)\n", (unsigned long long) cmd->tag);
1124 flist_del(&reply->list);
1125 cmd->tag = reply->saved_tag;
1129 int fio_client_wait_for_reply(struct fio_client *client, uint64_t tag)
1132 struct fio_net_cmd_reply *reply = NULL;
1133 struct flist_head *entry;
1135 flist_for_each(entry, &client->cmd_list) {
1136 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1138 if (tag == (uintptr_t) reply)
1153 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
1155 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
1156 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
1158 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
1160 assert(client->eta_in_flight == eta);
1162 client->eta_in_flight = NULL;
1163 flist_del_init(&client->eta_list);
1165 if (client->ops->jobs_eta)
1166 client->ops->jobs_eta(client, je);
1168 fio_client_sum_jobs_eta(&eta->eta, je);
1169 fio_client_dec_jobs_eta(eta, client->ops->eta);
1172 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
1174 struct cmd_probe_reply_pdu *probe = (struct cmd_probe_reply_pdu *) cmd->payload;
1175 const char *os, *arch;
1178 os = fio_get_os_string(probe->os);
1182 arch = fio_get_arch_string(probe->arch);
1186 sprintf(bit, "%d-bit", probe->bpp * 8);
1187 probe->flags = le64_to_cpu(probe->flags);
1189 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%s, flags=%lx\n",
1190 probe->hostname, probe->bigendian, bit, os, arch,
1191 probe->fio_version, (unsigned long) probe->flags);
1194 client->name = strdup((char *) probe->hostname);
1197 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
1199 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1201 client->state = Client_started;
1202 client->jobs = le32_to_cpu(pdu->jobs);
1203 client->nr_stat = le32_to_cpu(pdu->stat_outputs);
1205 sum_stat_clients += client->nr_stat;
1208 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
1211 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
1214 static void convert_stop(struct fio_net_cmd *cmd)
1216 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1218 pdu->error = le32_to_cpu(pdu->error);
1221 static void convert_text(struct fio_net_cmd *cmd)
1223 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
1225 pdu->level = le32_to_cpu(pdu->level);
1226 pdu->buf_len = le32_to_cpu(pdu->buf_len);
1227 pdu->log_sec = le64_to_cpu(pdu->log_sec);
1228 pdu->log_usec = le64_to_cpu(pdu->log_usec);
1231 static struct cmd_iolog_pdu *convert_iolog_gz(struct fio_net_cmd *cmd,
1232 struct cmd_iolog_pdu *pdu)
1235 struct cmd_iolog_pdu *ret;
1237 uint32_t nr_samples;
1241 stream.zalloc = Z_NULL;
1242 stream.zfree = Z_NULL;
1243 stream.opaque = Z_NULL;
1244 stream.avail_in = 0;
1245 stream.next_in = Z_NULL;
1247 if (inflateInit(&stream) != Z_OK)
1251 * Get header first, it's not compressed
1253 nr_samples = le64_to_cpu(pdu->nr_samples);
1255 total = nr_samples * __log_entry_sz(le32_to_cpu(pdu->log_offset));
1256 ret = malloc(total + sizeof(*pdu));
1257 ret->nr_samples = nr_samples;
1259 memcpy(ret, pdu, sizeof(*pdu));
1261 p = (void *) ret + sizeof(*pdu);
1263 stream.avail_in = cmd->pdu_len - sizeof(*pdu);
1264 stream.next_in = (void *) pdu + sizeof(*pdu);
1265 while (stream.avail_in) {
1266 unsigned int this_chunk = 65536;
1267 unsigned int this_len;
1270 if (this_chunk > total)
1273 stream.avail_out = this_chunk;
1274 stream.next_out = p;
1275 err = inflate(&stream, Z_NO_FLUSH);
1276 /* may be Z_OK, or Z_STREAM_END */
1278 log_err("fio: inflate error %d\n", err);
1284 this_len = this_chunk - stream.avail_out;
1290 inflateEnd(&stream);
1298 * This has been compressed on the server side, since it can be big.
1301 static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd)
1303 struct cmd_iolog_pdu *pdu = (struct cmd_iolog_pdu *) cmd->payload;
1304 struct cmd_iolog_pdu *ret;
1309 * Convert if compressed and we support it. If it's not
1310 * compressed, we need not do anything.
1312 if (le32_to_cpu(pdu->compressed)) {
1314 log_err("fio: server sent compressed data by mistake\n");
1317 ret = convert_iolog_gz(cmd, pdu);
1319 log_err("fio: failed decompressing log\n");
1325 ret->nr_samples = le64_to_cpu(ret->nr_samples);
1326 ret->thread_number = le32_to_cpu(ret->thread_number);
1327 ret->log_type = le32_to_cpu(ret->log_type);
1328 ret->compressed = le32_to_cpu(ret->compressed);
1329 ret->log_offset = le32_to_cpu(ret->log_offset);
1331 samples = &ret->samples[0];
1332 for (i = 0; i < ret->nr_samples; i++) {
1333 struct io_sample *s;
1335 s = __get_sample(samples, ret->log_offset, i);
1336 s->time = le64_to_cpu(s->time);
1337 s->val = le64_to_cpu(s->val);
1338 s->__ddir = le32_to_cpu(s->__ddir);
1339 s->bs = le32_to_cpu(s->bs);
1341 if (ret->log_offset) {
1342 struct io_sample_offset *so = (void *) s;
1344 so->offset = le64_to_cpu(so->offset);
1351 static void sendfile_reply(int fd, struct cmd_sendfile_reply *rep,
1352 size_t size, uint64_t tag)
1354 rep->error = cpu_to_le32(rep->error);
1355 fio_net_send_cmd(fd, FIO_NET_CMD_SENDFILE, rep, size, &tag, NULL);
1358 static int send_file(struct fio_client *client, struct cmd_sendfile *pdu,
1361 struct cmd_sendfile_reply *rep;
1366 size = sizeof(*rep);
1369 if (stat((char *)pdu->path, &sb) < 0) {
1372 sendfile_reply(client->fd, rep, size, tag);
1378 rep = realloc(rep, size);
1379 rep->size = cpu_to_le32((uint32_t) sb.st_size);
1381 fd = open((char *)pdu->path, O_RDONLY);
1385 rep->error = read_data(fd, &rep->data, sb.st_size);
1386 sendfile_reply(client->fd, rep, size, tag);
1392 int fio_handle_client(struct fio_client *client)
1394 struct client_ops *ops = client->ops;
1395 struct fio_net_cmd *cmd;
1397 dprint(FD_NET, "client: handle %s\n", client->hostname);
1399 cmd = fio_net_recv_cmd(client->fd);
1403 dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
1404 fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
1406 switch (cmd->opcode) {
1407 case FIO_NET_CMD_QUIT:
1409 ops->quit(client, cmd);
1410 remove_client(client);
1412 case FIO_NET_CMD_TEXT:
1414 ops->text(client, cmd);
1416 case FIO_NET_CMD_DU: {
1417 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
1419 convert_dus(&du->dus);
1420 convert_agg(&du->agg);
1422 ops->disk_util(client, cmd);
1425 case FIO_NET_CMD_TS: {
1426 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
1428 convert_ts(&p->ts, &p->ts);
1429 convert_gs(&p->rs, &p->rs);
1431 ops->thread_status(client, cmd);
1434 case FIO_NET_CMD_GS: {
1435 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
1439 ops->group_stats(client, cmd);
1442 case FIO_NET_CMD_ETA: {
1443 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
1445 remove_reply_cmd(client, cmd);
1446 convert_jobs_eta(je);
1447 handle_eta(client, cmd);
1450 case FIO_NET_CMD_PROBE:
1451 remove_reply_cmd(client, cmd);
1452 ops->probe(client, cmd);
1454 case FIO_NET_CMD_SERVER_START:
1455 client->state = Client_running;
1457 ops->job_start(client, cmd);
1459 case FIO_NET_CMD_START: {
1460 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1462 pdu->jobs = le32_to_cpu(pdu->jobs);
1463 ops->start(client, cmd);
1466 case FIO_NET_CMD_STOP: {
1467 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1470 client->state = Client_stopped;
1471 client->error = le32_to_cpu(pdu->error);
1472 client->signal = le32_to_cpu(pdu->signal);
1473 ops->stop(client, cmd);
1476 case FIO_NET_CMD_ADD_JOB: {
1477 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
1479 client->thread_number = le32_to_cpu(pdu->thread_number);
1480 client->groupid = le32_to_cpu(pdu->groupid);
1483 ops->add_job(client, cmd);
1486 case FIO_NET_CMD_IOLOG:
1488 struct cmd_iolog_pdu *pdu;
1490 pdu = convert_iolog(cmd);
1491 ops->iolog(client, pdu);
1494 case FIO_NET_CMD_UPDATE_JOB:
1495 ops->update_job(client, cmd);
1496 remove_reply_cmd(client, cmd);
1498 case FIO_NET_CMD_VTRIGGER: {
1499 struct all_io_list *pdu = (struct all_io_list *) cmd->payload;
1504 strcpy(buf, aux_path);
1508 __verify_save_state(pdu, server_name(client, &buf[off], sizeof(buf) - off));
1509 exec_trigger(trigger_cmd);
1512 case FIO_NET_CMD_SENDFILE: {
1513 struct cmd_sendfile *pdu = (struct cmd_sendfile *) cmd->payload;
1514 send_file(client, pdu, cmd->tag);
1518 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
1526 int fio_clients_send_trigger(const char *cmd)
1528 struct flist_head *entry;
1529 struct fio_client *client;
1532 dprint(FD_NET, "client: send vtrigger: %s\n", cmd);
1539 flist_for_each(entry, &client_list) {
1540 struct cmd_vtrigger_pdu *pdu;
1542 client = flist_entry(entry, struct fio_client, list);
1544 pdu = malloc(sizeof(*pdu) + slen);
1545 pdu->len = cpu_to_le16((uint16_t) slen);
1547 memcpy(pdu->cmd, cmd, slen);
1548 fio_net_send_cmd(client->fd, FIO_NET_CMD_VTRIGGER, pdu,
1549 sizeof(*pdu) + slen, NULL, NULL);
1556 static void request_client_etas(struct client_ops *ops)
1558 struct fio_client *client;
1559 struct flist_head *entry;
1560 struct client_eta *eta;
1563 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
1565 eta = calloc(1, sizeof(*eta) + __THREAD_RUNSTR_SZ(REAL_MAX_JOBS));
1566 eta->pending = nr_clients;
1568 flist_for_each(entry, &client_list) {
1569 client = flist_entry(entry, struct fio_client, list);
1571 if (!flist_empty(&client->eta_list)) {
1575 if (client->state != Client_running)
1578 assert(!client->eta_in_flight);
1579 flist_add_tail(&client->eta_list, &eta_list);
1580 client->eta_in_flight = eta;
1581 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
1582 (uintptr_t) eta, &client->cmd_list);
1586 if (!fio_client_dec_jobs_eta(eta, ops->eta))
1590 dprint(FD_NET, "client: requested eta tag %p\n", eta);
1593 static int client_check_cmd_timeout(struct fio_client *client,
1594 struct timeval *now)
1596 struct fio_net_cmd_reply *reply;
1597 struct flist_head *entry, *tmp;
1600 flist_for_each_safe(entry, tmp, &client->cmd_list) {
1601 reply = flist_entry(entry, struct fio_net_cmd_reply, list);
1603 if (mtime_since(&reply->tv, now) < FIO_NET_CLIENT_TIMEOUT)
1606 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
1607 fio_server_op(reply->opcode));
1608 flist_del(&reply->list);
1613 return flist_empty(&client->cmd_list) && ret;
1616 static int fio_check_clients_timed_out(void)
1618 struct fio_client *client;
1619 struct flist_head *entry, *tmp;
1623 fio_gettime(&tv, NULL);
1625 flist_for_each_safe(entry, tmp, &client_list) {
1626 client = flist_entry(entry, struct fio_client, list);
1628 if (flist_empty(&client->cmd_list))
1631 if (!client_check_cmd_timeout(client, &tv))
1634 if (client->ops->timed_out)
1635 client->ops->timed_out(client);
1637 log_err("fio: client %s timed out\n", client->hostname);
1639 client->error = ETIMEDOUT;
1640 remove_client(client);
1647 int fio_handle_clients(struct client_ops *ops)
1649 struct pollfd *pfds;
1650 int i, ret = 0, retval = 0;
1652 fio_gettime(&eta_tv, NULL);
1654 pfds = malloc(nr_clients * sizeof(struct pollfd));
1656 init_thread_stat(&client_ts);
1657 init_group_run_stat(&client_gs);
1659 while (!exit_backend && nr_clients) {
1660 struct flist_head *entry, *tmp;
1661 struct fio_client *client;
1664 flist_for_each_safe(entry, tmp, &client_list) {
1665 client = flist_entry(entry, struct fio_client, list);
1667 if (!client->sent_job && !client->ops->stay_connected &&
1668 flist_empty(&client->cmd_list)) {
1669 remove_client(client);
1673 pfds[i].fd = client->fd;
1674 pfds[i].events = POLLIN;
1681 assert(i == nr_clients);
1687 fio_gettime(&tv, NULL);
1688 if (mtime_since(&eta_tv, &tv) >= 900) {
1689 request_client_etas(ops);
1690 memcpy(&eta_tv, &tv, sizeof(tv));
1692 if (fio_check_clients_timed_out())
1696 check_trigger_file();
1698 timeout = min(100u, ops->eta_msec);
1700 ret = poll(pfds, nr_clients, timeout);
1704 log_err("fio: poll clients: %s\n", strerror(errno));
1710 for (i = 0; i < nr_clients; i++) {
1711 if (!(pfds[i].revents & POLLIN))
1714 client = find_client_by_fd(pfds[i].fd);
1716 log_err("fio: unknown client fd %ld\n", (long) pfds[i].fd);
1719 if (!fio_handle_client(client)) {
1720 log_info("client: host=%s disconnected\n",
1722 remove_client(client);
1724 } else if (client->error)
1726 fio_put_client(client);
1730 fio_client_json_fini();
1733 return retval || error_clients;