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);
30 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd);
32 struct client_ops fio_client_ops = {
33 .text_op = handle_text,
34 .disk_util = handle_du,
35 .thread_status = handle_ts,
36 .group_stats = handle_gs,
38 .start = handle_start,
39 .eta = display_thread_status,
40 .probe = handle_probe,
41 .eta_msec = FIO_CLIENT_DEF_ETA_MSEC,
44 static struct timeval eta_tv;
46 static FLIST_HEAD(client_list);
47 static FLIST_HEAD(eta_list);
49 static FLIST_HEAD(arg_list);
51 struct thread_stat client_ts;
52 struct group_run_stats client_gs;
55 static int sum_stat_nr;
57 #define FIO_CLIENT_HASH_BITS 7
58 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
59 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
60 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
62 static void fio_client_add_hash(struct fio_client *client)
64 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
66 bucket &= FIO_CLIENT_HASH_MASK;
67 flist_add(&client->hash_list, &client_hash[bucket]);
70 static void fio_client_remove_hash(struct fio_client *client)
72 if (!flist_empty(&client->hash_list))
73 flist_del_init(&client->hash_list);
76 static void fio_init fio_client_hash_init(void)
80 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
81 INIT_FLIST_HEAD(&client_hash[i]);
84 static struct fio_client *find_client_by_fd(int fd)
86 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
87 struct fio_client *client;
88 struct flist_head *entry;
90 flist_for_each(entry, &client_hash[bucket]) {
91 client = flist_entry(entry, struct fio_client, hash_list);
93 if (client->fd == fd) {
102 void fio_put_client(struct fio_client *client)
107 free(client->hostname);
116 static void remove_client(struct fio_client *client)
118 assert(client->refs);
120 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
122 if (!flist_empty(&client->list))
123 flist_del_init(&client->list);
125 fio_client_remove_hash(client);
127 if (!flist_empty(&client->eta_list)) {
128 flist_del_init(&client->eta_list);
129 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
135 fio_put_client(client);
138 struct fio_client *fio_get_client(struct fio_client *client)
144 static void __fio_client_add_cmd_option(struct fio_client *client,
149 index = client->argc++;
150 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
151 client->argv[index] = strdup(opt);
152 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
155 void fio_client_add_cmd_option(void *cookie, const char *opt)
157 struct fio_client *client = cookie;
158 struct flist_head *entry;
163 __fio_client_add_cmd_option(client, opt);
166 * Duplicate arguments to shared client group
168 flist_for_each(entry, &arg_list) {
169 client = flist_entry(entry, struct fio_client, arg_list);
171 __fio_client_add_cmd_option(client, opt);
175 struct fio_client *fio_client_add_explicit(struct client_ops *ops,
176 const char *hostname, int type,
179 struct fio_client *client;
181 client = malloc(sizeof(*client));
182 memset(client, 0, sizeof(*client));
184 INIT_FLIST_HEAD(&client->list);
185 INIT_FLIST_HEAD(&client->hash_list);
186 INIT_FLIST_HEAD(&client->arg_list);
187 INIT_FLIST_HEAD(&client->eta_list);
188 INIT_FLIST_HEAD(&client->cmd_list);
190 client->hostname = strdup(hostname);
192 if (type == Fio_client_socket)
197 ipv6 = type == Fio_client_ipv6;
198 if (fio_server_parse_host(hostname, &ipv6,
199 &client->addr.sin_addr,
200 &client->addr6.sin6_addr))
210 __fio_client_add_cmd_option(client, "fio");
212 flist_add(&client->list, &client_list);
214 dprint(FD_NET, "client: added <%s>\n", client->hostname);
221 int fio_client_add(struct client_ops *ops, const char *hostname, void **cookie)
223 struct fio_client *existing = *cookie;
224 struct fio_client *client;
228 * We always add our "exec" name as the option, hence 1
231 if (existing->argc == 1)
232 flist_add_tail(&existing->arg_list, &arg_list);
234 while (!flist_empty(&arg_list))
235 flist_del_init(arg_list.next);
239 client = malloc(sizeof(*client));
240 memset(client, 0, sizeof(*client));
242 INIT_FLIST_HEAD(&client->list);
243 INIT_FLIST_HEAD(&client->hash_list);
244 INIT_FLIST_HEAD(&client->arg_list);
245 INIT_FLIST_HEAD(&client->eta_list);
246 INIT_FLIST_HEAD(&client->cmd_list);
248 if (fio_server_parse_string(hostname, &client->hostname,
249 &client->is_sock, &client->port,
250 &client->addr.sin_addr,
251 &client->addr6.sin6_addr,
259 __fio_client_add_cmd_option(client, "fio");
261 flist_add(&client->list, &client_list);
263 dprint(FD_NET, "client: added <%s>\n", client->hostname);
268 static void probe_client(struct fio_client *client)
270 dprint(FD_NET, "client: send probe\n");
272 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0, &client->cmd_list);
275 static int fio_client_connect_ip(struct fio_client *client)
277 struct sockaddr *addr;
278 fio_socklen_t socklen;
282 client->addr6.sin6_family = AF_INET6;
283 client->addr6.sin6_port = htons(client->port);
285 addr = (struct sockaddr *) &client->addr6;
286 socklen = sizeof(client->addr6);
288 client->addr.sin_family = AF_INET;
289 client->addr.sin_port = htons(client->port);
291 addr = (struct sockaddr *) &client->addr;
292 socklen = sizeof(client->addr);
295 fd = socket(domain, SOCK_STREAM, 0);
299 log_err("fio: socket: %s\n", strerror(errno));
303 if (connect(fd, addr, socklen) < 0) {
306 log_err("fio: connect: %s\n", strerror(errno));
307 log_err("fio: failed to connect to %s:%u\n", client->hostname,
316 static int fio_client_connect_sock(struct fio_client *client)
318 struct sockaddr_un *addr = &client->addr_un;
322 memset(addr, 0, sizeof(*addr));
323 addr->sun_family = AF_UNIX;
324 strcpy(addr->sun_path, client->hostname);
326 fd = socket(AF_UNIX, SOCK_STREAM, 0);
330 log_err("fio: socket: %s\n", strerror(errno));
334 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
335 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
338 log_err("fio: connect; %s\n", strerror(errno));
346 int fio_client_connect(struct fio_client *client)
350 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
353 fd = fio_client_connect_sock(client);
355 fd = fio_client_connect_ip(client);
357 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
363 fio_client_add_hash(client);
364 client->state = Client_connected;
366 probe_client(client);
370 void fio_client_terminate(struct fio_client *client)
372 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0, NULL);
375 void fio_clients_terminate(void)
377 struct flist_head *entry;
378 struct fio_client *client;
380 dprint(FD_NET, "client: terminate clients\n");
382 flist_for_each(entry, &client_list) {
383 client = flist_entry(entry, struct fio_client, list);
384 fio_client_terminate(client);
388 static void sig_int(int sig)
390 dprint(FD_NET, "client: got signal %d\n", sig);
391 fio_clients_terminate();
394 static void client_signal_handler(void)
396 struct sigaction act;
398 memset(&act, 0, sizeof(act));
399 act.sa_handler = sig_int;
400 act.sa_flags = SA_RESTART;
401 sigaction(SIGINT, &act, NULL);
403 memset(&act, 0, sizeof(act));
404 act.sa_handler = sig_int;
405 act.sa_flags = SA_RESTART;
406 sigaction(SIGTERM, &act, NULL);
409 static int send_client_cmd_line(struct fio_client *client)
411 struct cmd_single_line_pdu *cslp;
412 struct cmd_line_pdu *clp;
413 unsigned long offset;
419 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
421 lens = malloc(client->argc * sizeof(unsigned int));
424 * Find out how much mem we need
426 for (i = 0, mem = 0; i < client->argc; i++) {
427 lens[i] = strlen(client->argv[i]) + 1;
432 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
434 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
438 offset = sizeof(*clp);
440 for (i = 0; i < client->argc; i++) {
441 uint16_t arg_len = lens[i];
444 strcpy((char *) cslp->text, client->argv[i]);
445 cslp->len = cpu_to_le16(arg_len);
446 offset += sizeof(*cslp) + arg_len;
450 clp->lines = cpu_to_le16(client->argc);
451 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, 0);
456 int fio_clients_connect(void)
458 struct fio_client *client;
459 struct flist_head *entry, *tmp;
464 WSAStartup(MAKEWORD(2,2), &wsd);
467 dprint(FD_NET, "client: connect all\n");
469 client_signal_handler();
471 flist_for_each_safe(entry, tmp, &client_list) {
472 client = flist_entry(entry, struct fio_client, list);
474 ret = fio_client_connect(client);
476 remove_client(client);
480 if (client->argc > 1)
481 send_client_cmd_line(client);
487 int fio_start_client(struct fio_client *client)
489 dprint(FD_NET, "client: start %s\n", client->hostname);
490 return fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_RUN, 0, NULL);
493 int fio_start_all_clients(void)
495 struct fio_client *client;
496 struct flist_head *entry, *tmp;
499 dprint(FD_NET, "client: start all\n");
501 flist_for_each_safe(entry, tmp, &client_list) {
502 client = flist_entry(entry, struct fio_client, list);
504 ret = fio_start_client(client);
506 remove_client(client);
511 return flist_empty(&client_list);
515 * Send file contents to server backend. We could use sendfile(), but to remain
516 * more portable lets just read/write the darn thing.
518 static int __fio_client_send_ini(struct fio_client *client, const char *filename)
525 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
527 fd = open(filename, O_RDONLY);
531 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
535 if (fstat(fd, &sb) < 0) {
538 log_err("fio: job file stat: %s\n", strerror(errno));
543 buf = malloc(sb.st_size);
548 ret = read(fd, p, len);
557 else if (errno == EAGAIN || errno == EINTR)
562 log_err("fio: failed reading job file %s\n", filename);
568 client->sent_job = 1;
569 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size, 0);
575 int fio_client_send_ini(struct fio_client *client, const char *filename)
579 ret = __fio_client_send_ini(client, filename);
581 client->sent_job = 1;
586 int fio_clients_send_ini(const char *filename)
588 struct fio_client *client;
589 struct flist_head *entry, *tmp;
591 flist_for_each_safe(entry, tmp, &client_list) {
592 client = flist_entry(entry, struct fio_client, list);
594 if (fio_client_send_ini(client, filename))
595 remove_client(client);
601 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
603 dst->max_val = le64_to_cpu(src->max_val);
604 dst->min_val = le64_to_cpu(src->min_val);
605 dst->samples = le64_to_cpu(src->samples);
608 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
610 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
611 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
614 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
618 dst->error = le32_to_cpu(src->error);
619 dst->groupid = le32_to_cpu(src->groupid);
620 dst->pid = le32_to_cpu(src->pid);
621 dst->members = le32_to_cpu(src->members);
623 for (i = 0; i < 2; i++) {
624 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
625 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
626 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
627 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
630 dst->usr_time = le64_to_cpu(src->usr_time);
631 dst->sys_time = le64_to_cpu(src->sys_time);
632 dst->ctx = le64_to_cpu(src->ctx);
633 dst->minf = le64_to_cpu(src->minf);
634 dst->majf = le64_to_cpu(src->majf);
635 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
637 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
638 fio_fp64_t *fps = &src->percentile_list[i];
639 fio_fp64_t *fpd = &dst->percentile_list[i];
641 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
644 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
645 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
646 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
647 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
650 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
651 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
652 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
655 for (i = 0; i < 2; i++)
656 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
657 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
659 for (i = 0; i < 3; i++) {
660 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
661 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
664 dst->total_submit = le64_to_cpu(src->total_submit);
665 dst->total_complete = le64_to_cpu(src->total_complete);
667 for (i = 0; i < 2; i++) {
668 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
669 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
672 dst->total_run_time = le64_to_cpu(src->total_run_time);
673 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
674 dst->total_err_count = le64_to_cpu(src->total_err_count);
675 dst->first_error = le32_to_cpu(src->first_error);
676 dst->kb_base = le32_to_cpu(src->kb_base);
679 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
683 for (i = 0; i < 2; i++) {
684 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
685 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
686 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
687 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
688 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
689 dst->agg[i] = le64_to_cpu(src->agg[i]);
692 dst->kb_base = le32_to_cpu(src->kb_base);
693 dst->groupid = le32_to_cpu(src->groupid);
696 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
698 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
700 show_thread_status(&p->ts, &p->rs);
702 if (sum_stat_clients == 1)
705 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
706 sum_group_stats(&client_gs, &p->rs);
709 client_ts.groupid = p->ts.groupid;
711 if (++sum_stat_nr == sum_stat_clients) {
712 strcpy(client_ts.name, "All clients");
713 show_thread_status(&client_ts, &client_gs);
717 static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
719 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
721 show_group_stats(gs);
724 static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
726 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
727 const char *buf = (const char *) pdu->buf;
731 name = client->name ? client->name : client->hostname;
733 if (!client->skip_newline)
734 fprintf(f_out, "<%s> ", name);
735 ret = fwrite(buf, pdu->buf_len, 1, f_out);
737 client->skip_newline = strchr(buf, '\n') == NULL;
740 static void convert_agg(struct disk_util_agg *agg)
744 for (i = 0; i < 2; i++) {
745 agg->ios[i] = le32_to_cpu(agg->ios[i]);
746 agg->merges[i] = le32_to_cpu(agg->merges[i]);
747 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
748 agg->ticks[i] = le32_to_cpu(agg->ticks[i]);
751 agg->io_ticks = le32_to_cpu(agg->io_ticks);
752 agg->time_in_queue = le32_to_cpu(agg->time_in_queue);
753 agg->slavecount = le32_to_cpu(agg->slavecount);
754 agg->max_util.u.f = fio_uint64_to_double(__le64_to_cpu(agg->max_util.u.i));
757 static void convert_dus(struct disk_util_stat *dus)
761 for (i = 0; i < 2; i++) {
762 dus->ios[i] = le32_to_cpu(dus->ios[i]);
763 dus->merges[i] = le32_to_cpu(dus->merges[i]);
764 dus->sectors[i] = le64_to_cpu(dus->sectors[i]);
765 dus->ticks[i] = le32_to_cpu(dus->ticks[i]);
768 dus->io_ticks = le32_to_cpu(dus->io_ticks);
769 dus->time_in_queue = le32_to_cpu(dus->time_in_queue);
770 dus->msec = le64_to_cpu(dus->msec);
773 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
775 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
777 if (!client->disk_stats_shown) {
778 client->disk_stats_shown = 1;
779 log_info("\nDisk stats (read/write):\n");
782 print_disk_util(&du->dus, &du->agg, terse_output);
785 static void convert_jobs_eta(struct jobs_eta *je)
789 je->nr_running = le32_to_cpu(je->nr_running);
790 je->nr_ramp = le32_to_cpu(je->nr_ramp);
791 je->nr_pending = le32_to_cpu(je->nr_pending);
792 je->files_open = le32_to_cpu(je->files_open);
794 for (i = 0; i < 2; i++) {
795 je->m_rate[i] = le32_to_cpu(je->m_rate[i]);
796 je->t_rate[i] = le32_to_cpu(je->t_rate[i]);
797 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
798 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
799 je->rate[i] = le32_to_cpu(je->rate[i]);
800 je->iops[i] = le32_to_cpu(je->iops[i]);
803 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
804 je->eta_sec = le64_to_cpu(je->eta_sec);
805 je->nr_threads = le32_to_cpu(je->nr_threads);
808 void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
812 dst->nr_running += je->nr_running;
813 dst->nr_ramp += je->nr_ramp;
814 dst->nr_pending += je->nr_pending;
815 dst->files_open += je->files_open;
817 for (i = 0; i < 2; i++) {
818 dst->m_rate[i] += je->m_rate[i];
819 dst->t_rate[i] += je->t_rate[i];
820 dst->m_iops[i] += je->m_iops[i];
821 dst->t_iops[i] += je->t_iops[i];
822 dst->rate[i] += je->rate[i];
823 dst->iops[i] += je->iops[i];
826 dst->elapsed_sec += je->elapsed_sec;
828 if (je->eta_sec > dst->eta_sec)
829 dst->eta_sec = je->eta_sec;
831 dst->nr_threads += je->nr_threads;
832 /* we need to handle je->run_str too ... */
835 void fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
837 if (!--eta->pending) {
843 static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
845 struct fio_net_int_cmd *icmd = NULL;
846 struct flist_head *entry;
848 flist_for_each(entry, &client->cmd_list) {
849 icmd = flist_entry(entry, struct fio_net_int_cmd, list);
851 if (cmd->tag == (uintptr_t) icmd)
858 log_err("fio: client: unable to find matching tag\n");
862 flist_del(&icmd->list);
863 cmd->tag = icmd->saved_tag;
867 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
869 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
870 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
872 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
874 assert(client->eta_in_flight == eta);
876 client->eta_in_flight = NULL;
877 flist_del_init(&client->eta_list);
879 if (client->ops->jobs_eta)
880 client->ops->jobs_eta(client, je);
882 fio_client_sum_jobs_eta(&eta->eta, je);
883 fio_client_dec_jobs_eta(eta, client->ops->eta);
886 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
888 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
889 const char *os, *arch;
892 os = fio_get_os_string(probe->os);
896 arch = fio_get_arch_string(probe->arch);
900 sprintf(bit, "%d-bit", probe->bpp * 8);
902 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%u.%u.%u\n",
903 probe->hostname, probe->bigendian, bit, os, arch,
904 probe->fio_major, probe->fio_minor, probe->fio_patch);
907 client->name = strdup((char *) probe->hostname);
910 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
912 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
914 client->state = Client_started;
915 client->jobs = pdu->jobs;
918 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
921 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
924 static void convert_stop(struct fio_net_cmd *cmd)
926 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
928 pdu->error = le32_to_cpu(pdu->error);
931 static void convert_text(struct fio_net_cmd *cmd)
933 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
935 pdu->level = le32_to_cpu(pdu->level);
936 pdu->buf_len = le32_to_cpu(pdu->buf_len);
937 pdu->log_sec = le64_to_cpu(pdu->log_sec);
938 pdu->log_usec = le64_to_cpu(pdu->log_usec);
941 int fio_handle_client(struct fio_client *client)
943 struct client_ops *ops = client->ops;
944 struct fio_net_cmd *cmd;
946 dprint(FD_NET, "client: handle %s\n", client->hostname);
948 cmd = fio_net_recv_cmd(client->fd);
952 dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
953 fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
955 switch (cmd->opcode) {
956 case FIO_NET_CMD_QUIT:
959 remove_client(client);
962 case FIO_NET_CMD_TEXT:
964 ops->text_op(client, cmd);
967 case FIO_NET_CMD_DU: {
968 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
970 convert_dus(&du->dus);
971 convert_agg(&du->agg);
973 ops->disk_util(client, cmd);
977 case FIO_NET_CMD_TS: {
978 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
980 convert_ts(&p->ts, &p->ts);
981 convert_gs(&p->rs, &p->rs);
983 ops->thread_status(client, cmd);
987 case FIO_NET_CMD_GS: {
988 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
992 ops->group_stats(client, cmd);
996 case FIO_NET_CMD_ETA: {
997 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
999 remove_reply_cmd(client, cmd);
1000 convert_jobs_eta(je);
1001 handle_eta(client, cmd);
1005 case FIO_NET_CMD_PROBE:
1006 remove_reply_cmd(client, cmd);
1007 ops->probe(client, cmd);
1010 case FIO_NET_CMD_SERVER_START:
1011 client->state = Client_running;
1013 ops->job_start(client, cmd);
1016 case FIO_NET_CMD_START: {
1017 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1019 pdu->jobs = le32_to_cpu(pdu->jobs);
1020 ops->start(client, cmd);
1024 case FIO_NET_CMD_STOP: {
1025 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1028 client->state = Client_stopped;
1029 client->error = pdu->error;
1030 ops->stop(client, cmd);
1034 case FIO_NET_CMD_ADD_JOB:
1036 ops->add_job(client, cmd);
1040 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
1048 static void request_client_etas(struct client_ops *ops)
1050 struct fio_client *client;
1051 struct flist_head *entry;
1052 struct client_eta *eta;
1055 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
1057 eta = malloc(sizeof(*eta));
1058 memset(&eta->eta, 0, sizeof(eta->eta));
1059 eta->pending = nr_clients;
1061 flist_for_each(entry, &client_list) {
1062 client = flist_entry(entry, struct fio_client, list);
1064 if (!flist_empty(&client->eta_list)) {
1068 if (client->state != Client_running)
1071 assert(!client->eta_in_flight);
1072 flist_add_tail(&client->eta_list, &eta_list);
1073 client->eta_in_flight = eta;
1074 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
1075 (uintptr_t) eta, &client->cmd_list);
1079 fio_client_dec_jobs_eta(eta, ops->eta);
1081 dprint(FD_NET, "client: requested eta tag %p\n", eta);
1084 static int client_check_cmd_timeout(struct fio_client *client,
1085 struct timeval *now)
1087 struct fio_net_int_cmd *cmd;
1088 struct flist_head *entry, *tmp;
1091 flist_for_each_safe(entry, tmp, &client->cmd_list) {
1092 cmd = flist_entry(entry, struct fio_net_int_cmd, list);
1094 if (mtime_since(&cmd->tv, now) < FIO_NET_CLIENT_TIMEOUT)
1097 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
1098 fio_server_op(cmd->cmd.opcode));
1099 flist_del(&cmd->list);
1104 return flist_empty(&client->cmd_list) && ret;
1107 static int fio_check_clients_timed_out(void)
1109 struct fio_client *client;
1110 struct flist_head *entry, *tmp;
1114 gettimeofday(&tv, NULL);
1116 flist_for_each_safe(entry, tmp, &client_list) {
1117 client = flist_entry(entry, struct fio_client, list);
1119 if (flist_empty(&client->cmd_list))
1122 if (!client_check_cmd_timeout(client, &tv))
1125 if (client->ops->timed_out)
1126 client->ops->timed_out(client);
1128 log_err("fio: client %s timed out\n", client->hostname);
1130 remove_client(client);
1137 int fio_handle_clients(struct client_ops *ops)
1139 struct pollfd *pfds;
1140 int i, ret = 0, retval = 0;
1142 gettimeofday(&eta_tv, NULL);
1144 pfds = malloc(nr_clients * sizeof(struct pollfd));
1146 sum_stat_clients = nr_clients;
1147 init_thread_stat(&client_ts);
1148 init_group_run_stat(&client_gs);
1150 while (!exit_backend && nr_clients) {
1151 struct flist_head *entry, *tmp;
1152 struct fio_client *client;
1155 flist_for_each_safe(entry, tmp, &client_list) {
1156 client = flist_entry(entry, struct fio_client, list);
1158 if (!client->sent_job && !client->ops->stay_connected &&
1159 flist_empty(&client->cmd_list)) {
1160 remove_client(client);
1164 pfds[i].fd = client->fd;
1165 pfds[i].events = POLLIN;
1172 assert(i == nr_clients);
1177 gettimeofday(&tv, NULL);
1178 if (mtime_since(&eta_tv, &tv) >= ops->eta_msec) {
1179 request_client_etas(ops);
1180 memcpy(&eta_tv, &tv, sizeof(tv));
1182 if (fio_check_clients_timed_out())
1186 ret = poll(pfds, nr_clients, 100);
1190 log_err("fio: poll clients: %s\n", strerror(errno));
1196 for (i = 0; i < nr_clients; i++) {
1197 if (!(pfds[i].revents & POLLIN))
1200 client = find_client_by_fd(pfds[i].fd);
1202 log_err("fio: unknown client fd %d\n", pfds[i].fd);
1205 if (!fio_handle_client(client)) {
1206 log_info("client: host=%s disconnected\n",
1208 remove_client(client);
1210 } else if (client->error)
1212 fio_put_client(client);