11 #include <sys/socket.h>
13 #include <netinet/in.h>
14 #include <arpa/inet.h>
25 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
26 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd);
27 static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd);
28 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
29 static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd);
30 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd);
31 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd);
33 struct client_ops fio_client_ops = {
35 .disk_util = handle_du,
36 .thread_status = handle_ts,
37 .group_stats = handle_gs,
39 .start = handle_start,
40 .eta = display_thread_status,
41 .probe = handle_probe,
42 .eta_msec = FIO_CLIENT_DEF_ETA_MSEC,
43 .client_type = FIO_CLIENT_TYPE_CLI,
46 static struct timeval eta_tv;
48 static FLIST_HEAD(client_list);
49 static FLIST_HEAD(eta_list);
51 static FLIST_HEAD(arg_list);
53 struct thread_stat client_ts;
54 struct group_run_stats client_gs;
57 static int sum_stat_nr;
59 #define FIO_CLIENT_HASH_BITS 7
60 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
61 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
62 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
64 static void fio_client_add_hash(struct fio_client *client)
66 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
68 bucket &= FIO_CLIENT_HASH_MASK;
69 flist_add(&client->hash_list, &client_hash[bucket]);
72 static void fio_client_remove_hash(struct fio_client *client)
74 if (!flist_empty(&client->hash_list))
75 flist_del_init(&client->hash_list);
78 static void fio_init fio_client_hash_init(void)
82 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
83 INIT_FLIST_HEAD(&client_hash[i]);
86 static struct fio_client *find_client_by_fd(int fd)
88 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
89 struct fio_client *client;
90 struct flist_head *entry;
92 flist_for_each(entry, &client_hash[bucket]) {
93 client = flist_entry(entry, struct fio_client, hash_list);
95 if (client->fd == fd) {
104 void fio_put_client(struct fio_client *client)
109 free(client->hostname);
118 static void remove_client(struct fio_client *client)
120 assert(client->refs);
122 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
124 if (!flist_empty(&client->list))
125 flist_del_init(&client->list);
127 fio_client_remove_hash(client);
129 if (!flist_empty(&client->eta_list)) {
130 flist_del_init(&client->eta_list);
131 fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
137 fio_put_client(client);
140 struct fio_client *fio_get_client(struct fio_client *client)
146 static void __fio_client_add_cmd_option(struct fio_client *client,
151 index = client->argc++;
152 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
153 client->argv[index] = strdup(opt);
154 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
157 void fio_client_add_cmd_option(void *cookie, const char *opt)
159 struct fio_client *client = cookie;
160 struct flist_head *entry;
165 __fio_client_add_cmd_option(client, opt);
168 * Duplicate arguments to shared client group
170 flist_for_each(entry, &arg_list) {
171 client = flist_entry(entry, struct fio_client, arg_list);
173 __fio_client_add_cmd_option(client, opt);
177 struct fio_client *fio_client_add_explicit(struct client_ops *ops,
178 const char *hostname, int type,
181 struct fio_client *client;
183 client = malloc(sizeof(*client));
184 memset(client, 0, sizeof(*client));
186 INIT_FLIST_HEAD(&client->list);
187 INIT_FLIST_HEAD(&client->hash_list);
188 INIT_FLIST_HEAD(&client->arg_list);
189 INIT_FLIST_HEAD(&client->eta_list);
190 INIT_FLIST_HEAD(&client->cmd_list);
192 client->hostname = strdup(hostname);
194 if (type == Fio_client_socket)
199 ipv6 = type == Fio_client_ipv6;
200 if (fio_server_parse_host(hostname, &ipv6,
201 &client->addr.sin_addr,
202 &client->addr6.sin6_addr))
211 client->type = ops->client_type;
213 __fio_client_add_cmd_option(client, "fio");
215 flist_add(&client->list, &client_list);
217 dprint(FD_NET, "client: added <%s>\n", client->hostname);
224 int fio_client_add(struct client_ops *ops, const char *hostname, void **cookie)
226 struct fio_client *existing = *cookie;
227 struct fio_client *client;
231 * We always add our "exec" name as the option, hence 1
234 if (existing->argc == 1)
235 flist_add_tail(&existing->arg_list, &arg_list);
237 while (!flist_empty(&arg_list))
238 flist_del_init(arg_list.next);
242 client = malloc(sizeof(*client));
243 memset(client, 0, sizeof(*client));
245 INIT_FLIST_HEAD(&client->list);
246 INIT_FLIST_HEAD(&client->hash_list);
247 INIT_FLIST_HEAD(&client->arg_list);
248 INIT_FLIST_HEAD(&client->eta_list);
249 INIT_FLIST_HEAD(&client->cmd_list);
251 if (fio_server_parse_string(hostname, &client->hostname,
252 &client->is_sock, &client->port,
253 &client->addr.sin_addr,
254 &client->addr6.sin6_addr,
261 client->type = ops->client_type;
263 __fio_client_add_cmd_option(client, "fio");
265 flist_add(&client->list, &client_list);
267 dprint(FD_NET, "client: added <%s>\n", client->hostname);
272 static void probe_client(struct fio_client *client)
274 dprint(FD_NET, "client: send probe\n");
276 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0, &client->cmd_list);
279 static int fio_client_connect_ip(struct fio_client *client)
281 struct sockaddr *addr;
282 fio_socklen_t socklen;
286 client->addr6.sin6_family = AF_INET6;
287 client->addr6.sin6_port = htons(client->port);
289 addr = (struct sockaddr *) &client->addr6;
290 socklen = sizeof(client->addr6);
292 client->addr.sin_family = AF_INET;
293 client->addr.sin_port = htons(client->port);
295 addr = (struct sockaddr *) &client->addr;
296 socklen = sizeof(client->addr);
299 fd = socket(domain, SOCK_STREAM, 0);
303 log_err("fio: socket: %s\n", strerror(errno));
307 if (connect(fd, addr, socklen) < 0) {
310 log_err("fio: connect: %s\n", strerror(errno));
311 log_err("fio: failed to connect to %s:%u\n", client->hostname,
320 static int fio_client_connect_sock(struct fio_client *client)
322 struct sockaddr_un *addr = &client->addr_un;
326 memset(addr, 0, sizeof(*addr));
327 addr->sun_family = AF_UNIX;
328 strcpy(addr->sun_path, client->hostname);
330 fd = socket(AF_UNIX, SOCK_STREAM, 0);
334 log_err("fio: socket: %s\n", strerror(errno));
338 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
339 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
342 log_err("fio: connect; %s\n", strerror(errno));
350 int fio_client_connect(struct fio_client *client)
354 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
357 fd = fio_client_connect_sock(client);
359 fd = fio_client_connect_ip(client);
361 dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
367 fio_client_add_hash(client);
368 client->state = Client_connected;
370 probe_client(client);
374 void fio_client_terminate(struct fio_client *client)
376 fio_net_send_quit(client->fd);
379 void fio_clients_terminate(void)
381 struct flist_head *entry;
382 struct fio_client *client;
384 dprint(FD_NET, "client: terminate clients\n");
386 flist_for_each(entry, &client_list) {
387 client = flist_entry(entry, struct fio_client, list);
388 fio_client_terminate(client);
392 static void sig_int(int sig)
394 dprint(FD_NET, "client: got signal %d\n", sig);
395 fio_clients_terminate();
398 static void client_signal_handler(void)
400 struct sigaction act;
402 memset(&act, 0, sizeof(act));
403 act.sa_handler = sig_int;
404 act.sa_flags = SA_RESTART;
405 sigaction(SIGINT, &act, NULL);
407 memset(&act, 0, sizeof(act));
408 act.sa_handler = sig_int;
409 act.sa_flags = SA_RESTART;
410 sigaction(SIGTERM, &act, NULL);
413 static int send_client_cmd_line(struct fio_client *client)
415 struct cmd_single_line_pdu *cslp;
416 struct cmd_line_pdu *clp;
417 unsigned long offset;
423 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
425 lens = malloc(client->argc * sizeof(unsigned int));
428 * Find out how much mem we need
430 for (i = 0, mem = 0; i < client->argc; i++) {
431 lens[i] = strlen(client->argv[i]) + 1;
436 * We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
438 mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
442 offset = sizeof(*clp);
444 for (i = 0; i < client->argc; i++) {
445 uint16_t arg_len = lens[i];
448 strcpy((char *) cslp->text, client->argv[i]);
449 cslp->len = cpu_to_le16(arg_len);
450 offset += sizeof(*cslp) + arg_len;
454 clp->lines = cpu_to_le16(client->argc);
455 clp->client_type = __cpu_to_le16(client->type);
456 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, 0);
461 int fio_clients_connect(void)
463 struct fio_client *client;
464 struct flist_head *entry, *tmp;
469 WSAStartup(MAKEWORD(2,2), &wsd);
472 dprint(FD_NET, "client: connect all\n");
474 client_signal_handler();
476 flist_for_each_safe(entry, tmp, &client_list) {
477 client = flist_entry(entry, struct fio_client, list);
479 ret = fio_client_connect(client);
481 remove_client(client);
485 if (client->argc > 1)
486 send_client_cmd_line(client);
492 int fio_start_client(struct fio_client *client)
494 dprint(FD_NET, "client: start %s\n", client->hostname);
495 return fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_RUN, 0, NULL);
498 int fio_start_all_clients(void)
500 struct fio_client *client;
501 struct flist_head *entry, *tmp;
504 dprint(FD_NET, "client: start all\n");
506 flist_for_each_safe(entry, tmp, &client_list) {
507 client = flist_entry(entry, struct fio_client, list);
509 ret = fio_start_client(client);
511 remove_client(client);
516 return flist_empty(&client_list);
520 * Send file contents to server backend. We could use sendfile(), but to remain
521 * more portable lets just read/write the darn thing.
523 static int __fio_client_send_ini(struct fio_client *client, const char *filename)
525 struct cmd_job_pdu *pdu;
533 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
535 fd = open(filename, O_RDONLY);
539 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
543 if (fstat(fd, &sb) < 0) {
546 log_err("fio: job file stat: %s\n", strerror(errno));
551 p_size = sb.st_size + sizeof(*pdu);
552 pdu = malloc(p_size);
558 ret = read(fd, p, len);
567 else if (errno == EAGAIN || errno == EINTR)
572 log_err("fio: failed reading job file %s\n", filename);
578 pdu->buf_len = __cpu_to_le32(sb.st_size);
579 pdu->client_type = cpu_to_le32(client->type);
581 client->sent_job = 1;
582 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, pdu, p_size, 0);
588 int fio_client_send_ini(struct fio_client *client, const char *filename)
592 ret = __fio_client_send_ini(client, filename);
594 client->sent_job = 1;
599 int fio_clients_send_ini(const char *filename)
601 struct fio_client *client;
602 struct flist_head *entry, *tmp;
604 flist_for_each_safe(entry, tmp, &client_list) {
605 client = flist_entry(entry, struct fio_client, list);
607 if (fio_client_send_ini(client, filename))
608 remove_client(client);
614 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
616 dst->max_val = le64_to_cpu(src->max_val);
617 dst->min_val = le64_to_cpu(src->min_val);
618 dst->samples = le64_to_cpu(src->samples);
621 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
623 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
624 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
627 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
631 dst->error = le32_to_cpu(src->error);
632 dst->thread_number = le32_to_cpu(src->thread_number);
633 dst->groupid = le32_to_cpu(src->groupid);
634 dst->pid = le32_to_cpu(src->pid);
635 dst->members = le32_to_cpu(src->members);
637 for (i = 0; i < 2; i++) {
638 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
639 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
640 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
641 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
644 dst->usr_time = le64_to_cpu(src->usr_time);
645 dst->sys_time = le64_to_cpu(src->sys_time);
646 dst->ctx = le64_to_cpu(src->ctx);
647 dst->minf = le64_to_cpu(src->minf);
648 dst->majf = le64_to_cpu(src->majf);
649 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
651 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
652 fio_fp64_t *fps = &src->percentile_list[i];
653 fio_fp64_t *fpd = &dst->percentile_list[i];
655 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
658 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
659 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
660 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
661 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
664 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
665 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
666 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
669 for (i = 0; i < 2; i++)
670 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
671 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
673 for (i = 0; i < 3; i++) {
674 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
675 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
678 dst->total_submit = le64_to_cpu(src->total_submit);
679 dst->total_complete = le64_to_cpu(src->total_complete);
681 for (i = 0; i < 2; i++) {
682 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
683 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
686 dst->total_run_time = le64_to_cpu(src->total_run_time);
687 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
688 dst->total_err_count = le64_to_cpu(src->total_err_count);
689 dst->first_error = le32_to_cpu(src->first_error);
690 dst->kb_base = le32_to_cpu(src->kb_base);
693 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
697 for (i = 0; i < 2; i++) {
698 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
699 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
700 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
701 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
702 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
703 dst->agg[i] = le64_to_cpu(src->agg[i]);
706 dst->kb_base = le32_to_cpu(src->kb_base);
707 dst->groupid = le32_to_cpu(src->groupid);
710 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
712 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
714 show_thread_status(&p->ts, &p->rs);
716 if (sum_stat_clients == 1)
719 sum_thread_stats(&client_ts, &p->ts, sum_stat_nr);
720 sum_group_stats(&client_gs, &p->rs);
723 client_ts.thread_number = p->ts.thread_number;
724 client_ts.groupid = p->ts.groupid;
726 if (++sum_stat_nr == sum_stat_clients) {
727 strcpy(client_ts.name, "All clients");
728 show_thread_status(&client_ts, &client_gs);
732 static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
734 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
736 show_group_stats(gs);
739 static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
741 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
742 const char *buf = (const char *) pdu->buf;
746 name = client->name ? client->name : client->hostname;
748 if (!client->skip_newline)
749 fprintf(f_out, "<%s> ", name);
750 ret = fwrite(buf, pdu->buf_len, 1, f_out);
752 client->skip_newline = strchr(buf, '\n') == NULL;
755 static void convert_agg(struct disk_util_agg *agg)
759 for (i = 0; i < 2; i++) {
760 agg->ios[i] = le32_to_cpu(agg->ios[i]);
761 agg->merges[i] = le32_to_cpu(agg->merges[i]);
762 agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
763 agg->ticks[i] = le32_to_cpu(agg->ticks[i]);
766 agg->io_ticks = le32_to_cpu(agg->io_ticks);
767 agg->time_in_queue = le32_to_cpu(agg->time_in_queue);
768 agg->slavecount = le32_to_cpu(agg->slavecount);
769 agg->max_util.u.f = fio_uint64_to_double(__le64_to_cpu(agg->max_util.u.i));
772 static void convert_dus(struct disk_util_stat *dus)
776 for (i = 0; i < 2; i++) {
777 dus->ios[i] = le32_to_cpu(dus->ios[i]);
778 dus->merges[i] = le32_to_cpu(dus->merges[i]);
779 dus->sectors[i] = le64_to_cpu(dus->sectors[i]);
780 dus->ticks[i] = le32_to_cpu(dus->ticks[i]);
783 dus->io_ticks = le32_to_cpu(dus->io_ticks);
784 dus->time_in_queue = le32_to_cpu(dus->time_in_queue);
785 dus->msec = le64_to_cpu(dus->msec);
788 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
790 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
792 if (!client->disk_stats_shown) {
793 client->disk_stats_shown = 1;
794 log_info("\nDisk stats (read/write):\n");
797 print_disk_util(&du->dus, &du->agg, terse_output);
800 static void convert_jobs_eta(struct jobs_eta *je)
804 je->nr_running = le32_to_cpu(je->nr_running);
805 je->nr_ramp = le32_to_cpu(je->nr_ramp);
806 je->nr_pending = le32_to_cpu(je->nr_pending);
807 je->files_open = le32_to_cpu(je->files_open);
809 for (i = 0; i < 2; i++) {
810 je->m_rate[i] = le32_to_cpu(je->m_rate[i]);
811 je->t_rate[i] = le32_to_cpu(je->t_rate[i]);
812 je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
813 je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
814 je->rate[i] = le32_to_cpu(je->rate[i]);
815 je->iops[i] = le32_to_cpu(je->iops[i]);
818 je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
819 je->eta_sec = le64_to_cpu(je->eta_sec);
820 je->nr_threads = le32_to_cpu(je->nr_threads);
823 void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
827 dst->nr_running += je->nr_running;
828 dst->nr_ramp += je->nr_ramp;
829 dst->nr_pending += je->nr_pending;
830 dst->files_open += je->files_open;
832 for (i = 0; i < 2; i++) {
833 dst->m_rate[i] += je->m_rate[i];
834 dst->t_rate[i] += je->t_rate[i];
835 dst->m_iops[i] += je->m_iops[i];
836 dst->t_iops[i] += je->t_iops[i];
837 dst->rate[i] += je->rate[i];
838 dst->iops[i] += je->iops[i];
841 dst->elapsed_sec += je->elapsed_sec;
843 if (je->eta_sec > dst->eta_sec)
844 dst->eta_sec = je->eta_sec;
846 dst->nr_threads += je->nr_threads;
847 /* we need to handle je->run_str too ... */
850 void fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
852 if (!--eta->pending) {
858 static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
860 struct fio_net_int_cmd *icmd = NULL;
861 struct flist_head *entry;
863 flist_for_each(entry, &client->cmd_list) {
864 icmd = flist_entry(entry, struct fio_net_int_cmd, list);
866 if (cmd->tag == (uintptr_t) icmd)
873 log_err("fio: client: unable to find matching tag\n");
877 flist_del(&icmd->list);
878 cmd->tag = icmd->saved_tag;
882 static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
884 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
885 struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
887 dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
889 assert(client->eta_in_flight == eta);
891 client->eta_in_flight = NULL;
892 flist_del_init(&client->eta_list);
894 if (client->ops->jobs_eta)
895 client->ops->jobs_eta(client, je);
897 fio_client_sum_jobs_eta(&eta->eta, je);
898 fio_client_dec_jobs_eta(eta, client->ops->eta);
901 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
903 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
904 const char *os, *arch;
907 os = fio_get_os_string(probe->os);
911 arch = fio_get_arch_string(probe->arch);
915 sprintf(bit, "%d-bit", probe->bpp * 8);
917 log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%u.%u.%u\n",
918 probe->hostname, probe->bigendian, bit, os, arch,
919 probe->fio_major, probe->fio_minor, probe->fio_patch);
922 client->name = strdup((char *) probe->hostname);
925 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
927 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
929 client->state = Client_started;
930 client->jobs = pdu->jobs;
933 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
936 log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
939 static void convert_stop(struct fio_net_cmd *cmd)
941 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
943 pdu->error = le32_to_cpu(pdu->error);
946 static void convert_text(struct fio_net_cmd *cmd)
948 struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
950 pdu->level = le32_to_cpu(pdu->level);
951 pdu->buf_len = le32_to_cpu(pdu->buf_len);
952 pdu->log_sec = le64_to_cpu(pdu->log_sec);
953 pdu->log_usec = le64_to_cpu(pdu->log_usec);
957 * This has been compressed on the server side, since it can be big.
960 static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd)
962 struct cmd_iolog_pdu *pdu = (struct cmd_iolog_pdu *) cmd->payload;
963 struct cmd_iolog_pdu *ret;
970 stream.zalloc = Z_NULL;
971 stream.zfree = Z_NULL;
972 stream.opaque = Z_NULL;
974 stream.next_in = Z_NULL;
976 if (inflateInit(&stream) != Z_OK)
980 * Get header first, it's not compressed
982 nr_samples = le32_to_cpu(pdu->nr_samples);
984 total = nr_samples * sizeof(struct io_sample);
985 ret = malloc(total + sizeof(*pdu));
986 ret->thread_number = le32_to_cpu(pdu->thread_number);
987 ret->nr_samples = nr_samples;
988 ret->log_type = le32_to_cpu(pdu->log_type);
989 strcpy((char *) ret->name, (char *) pdu->name);
991 p = (void *) ret + sizeof(*pdu);
993 stream.avail_in = cmd->pdu_len - sizeof(*pdu);
994 stream.next_in = (void *) pdu + sizeof(*pdu);
995 while (stream.avail_in) {
996 unsigned int this_chunk = 65536;
997 unsigned int this_len;
1000 if (this_chunk > total)
1003 stream.avail_out = this_chunk;
1004 stream.next_out = p;
1005 err = inflate(&stream, Z_NO_FLUSH);
1006 /* may be Z_OK, or Z_STREAM_END */
1008 log_err("fio: inflate error %d\n", err);
1014 this_len = this_chunk - stream.avail_out;
1019 for (i = 0; i < ret->nr_samples; i++) {
1020 struct io_sample *s = &ret->samples[i];
1022 s->time = le64_to_cpu(s->time);
1023 s->val = le64_to_cpu(s->val);
1024 s->ddir = le32_to_cpu(s->ddir);
1025 s->bs = le32_to_cpu(s->bs);
1029 inflateEnd(&stream);
1033 int fio_handle_client(struct fio_client *client)
1035 struct client_ops *ops = client->ops;
1036 struct fio_net_cmd *cmd;
1038 dprint(FD_NET, "client: handle %s\n", client->hostname);
1040 cmd = fio_net_recv_cmd(client->fd);
1044 dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
1045 fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
1047 switch (cmd->opcode) {
1048 case FIO_NET_CMD_QUIT:
1050 ops->quit(client, cmd);
1051 remove_client(client);
1054 case FIO_NET_CMD_TEXT:
1056 ops->text(client, cmd);
1059 case FIO_NET_CMD_DU: {
1060 struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
1062 convert_dus(&du->dus);
1063 convert_agg(&du->agg);
1065 ops->disk_util(client, cmd);
1069 case FIO_NET_CMD_TS: {
1070 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
1072 convert_ts(&p->ts, &p->ts);
1073 convert_gs(&p->rs, &p->rs);
1075 ops->thread_status(client, cmd);
1079 case FIO_NET_CMD_GS: {
1080 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
1084 ops->group_stats(client, cmd);
1088 case FIO_NET_CMD_ETA: {
1089 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
1091 remove_reply_cmd(client, cmd);
1092 convert_jobs_eta(je);
1093 handle_eta(client, cmd);
1097 case FIO_NET_CMD_PROBE:
1098 remove_reply_cmd(client, cmd);
1099 ops->probe(client, cmd);
1102 case FIO_NET_CMD_SERVER_START:
1103 client->state = Client_running;
1105 ops->job_start(client, cmd);
1108 case FIO_NET_CMD_START: {
1109 struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
1111 pdu->jobs = le32_to_cpu(pdu->jobs);
1112 ops->start(client, cmd);
1116 case FIO_NET_CMD_STOP: {
1117 struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
1120 client->state = Client_stopped;
1121 client->error = le32_to_cpu(pdu->error);
1122 client->signal = le32_to_cpu(pdu->signal);
1123 ops->stop(client, cmd);
1127 case FIO_NET_CMD_ADD_JOB:
1129 ops->add_job(client, cmd);
1132 case FIO_NET_CMD_IOLOG:
1134 struct cmd_iolog_pdu *pdu;
1136 pdu = convert_iolog(cmd);
1137 ops->iolog(client, pdu);
1142 log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
1150 static void request_client_etas(struct client_ops *ops)
1152 struct fio_client *client;
1153 struct flist_head *entry;
1154 struct client_eta *eta;
1157 dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
1159 eta = malloc(sizeof(*eta));
1160 memset(&eta->eta, 0, sizeof(eta->eta));
1161 eta->pending = nr_clients;
1163 flist_for_each(entry, &client_list) {
1164 client = flist_entry(entry, struct fio_client, list);
1166 if (!flist_empty(&client->eta_list)) {
1170 if (client->state != Client_running)
1173 assert(!client->eta_in_flight);
1174 flist_add_tail(&client->eta_list, &eta_list);
1175 client->eta_in_flight = eta;
1176 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
1177 (uintptr_t) eta, &client->cmd_list);
1181 fio_client_dec_jobs_eta(eta, ops->eta);
1183 dprint(FD_NET, "client: requested eta tag %p\n", eta);
1186 static int client_check_cmd_timeout(struct fio_client *client,
1187 struct timeval *now)
1189 struct fio_net_int_cmd *cmd;
1190 struct flist_head *entry, *tmp;
1193 flist_for_each_safe(entry, tmp, &client->cmd_list) {
1194 cmd = flist_entry(entry, struct fio_net_int_cmd, list);
1196 if (mtime_since(&cmd->tv, now) < FIO_NET_CLIENT_TIMEOUT)
1199 log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
1200 fio_server_op(cmd->cmd.opcode));
1201 flist_del(&cmd->list);
1206 return flist_empty(&client->cmd_list) && ret;
1209 static int fio_check_clients_timed_out(void)
1211 struct fio_client *client;
1212 struct flist_head *entry, *tmp;
1216 gettimeofday(&tv, NULL);
1218 flist_for_each_safe(entry, tmp, &client_list) {
1219 client = flist_entry(entry, struct fio_client, list);
1221 if (flist_empty(&client->cmd_list))
1224 if (!client_check_cmd_timeout(client, &tv))
1227 if (client->ops->timed_out)
1228 client->ops->timed_out(client);
1230 log_err("fio: client %s timed out\n", client->hostname);
1232 remove_client(client);
1239 int fio_handle_clients(struct client_ops *ops)
1241 struct pollfd *pfds;
1242 int i, ret = 0, retval = 0;
1244 gettimeofday(&eta_tv, NULL);
1246 pfds = malloc(nr_clients * sizeof(struct pollfd));
1248 sum_stat_clients = nr_clients;
1249 init_thread_stat(&client_ts);
1250 init_group_run_stat(&client_gs);
1252 while (!exit_backend && nr_clients) {
1253 struct flist_head *entry, *tmp;
1254 struct fio_client *client;
1257 flist_for_each_safe(entry, tmp, &client_list) {
1258 client = flist_entry(entry, struct fio_client, list);
1260 if (!client->sent_job && !client->ops->stay_connected &&
1261 flist_empty(&client->cmd_list)) {
1262 remove_client(client);
1266 pfds[i].fd = client->fd;
1267 pfds[i].events = POLLIN;
1274 assert(i == nr_clients);
1279 gettimeofday(&tv, NULL);
1280 if (mtime_since(&eta_tv, &tv) >= ops->eta_msec) {
1281 request_client_etas(ops);
1282 memcpy(&eta_tv, &tv, sizeof(tv));
1284 if (fio_check_clients_timed_out())
1288 ret = poll(pfds, nr_clients, 100);
1292 log_err("fio: poll clients: %s\n", strerror(errno));
1298 for (i = 0; i < nr_clients; i++) {
1299 if (!(pfds[i].revents & POLLIN))
1302 client = find_client_by_fd(pfds[i].fd);
1304 log_err("fio: unknown client fd %d\n", pfds[i].fd);
1307 if (!fio_handle_client(client)) {
1308 log_info("client: host=%s disconnected\n",
1310 remove_client(client);
1312 } else if (client->error)
1314 fio_put_client(client);