11 #include <sys/socket.h>
13 #include <netinet/in.h>
14 #include <arpa/inet.h>
24 struct flist_head list;
25 struct flist_head hash_list;
26 struct sockaddr_in addr;
27 struct sockaddr_un addr_un;
50 static FLIST_HEAD(client_list);
52 #define FIO_CLIENT_HASH_BITS 7
53 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
54 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
55 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
57 static int handle_client(struct fio_client *client);
59 static void fio_client_add_hash(struct fio_client *client)
61 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
63 bucket &= FIO_CLIENT_HASH_MASK;
64 flist_add(&client->hash_list, &client_hash[bucket]);
67 static void fio_client_remove_hash(struct fio_client *client)
69 if (!flist_empty(&client->hash_list))
70 flist_del_init(&client->hash_list);
73 static void fio_init fio_client_hash_init(void)
77 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
78 INIT_FLIST_HEAD(&client_hash[i]);
81 static struct fio_client *find_client_by_fd(int fd)
83 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
84 struct fio_client *client;
85 struct flist_head *entry;
87 flist_for_each(entry, &client_hash[bucket]) {
88 client = flist_entry(entry, struct fio_client, hash_list);
97 static void remove_client(struct fio_client *client)
99 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
100 flist_del(&client->list);
102 fio_client_remove_hash(client);
104 free(client->hostname);
114 static int __fio_client_add_cmd_option(struct fio_client *client,
119 if (client->argc == FIO_NET_CMD_JOBLINE_ARGV) {
120 log_err("fio: max cmd line number reached.\n");
121 log_err("fio: cmd line <%s> has been ignored.\n", opt);
125 index = client->argc++;
126 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
127 client->argv[index] = strdup(opt);
128 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
132 int fio_client_add_cmd_option(void *cookie, const char *opt)
134 struct fio_client *client = cookie;
139 return __fio_client_add_cmd_option(client, opt);
142 int fio_client_add(const char *hostname, void **cookie)
144 struct fio_client *client;
146 client = malloc(sizeof(*client));
147 memset(client, 0, sizeof(*client));
149 INIT_FLIST_HEAD(&client->list);
150 INIT_FLIST_HEAD(&client->hash_list);
152 if (fio_server_parse_string(hostname, &client->hostname,
153 &client->is_sock, &client->port,
154 &client->addr.sin_addr))
159 __fio_client_add_cmd_option(client, "fio");
161 flist_add(&client->list, &client_list);
163 dprint(FD_NET, "client: added <%s>\n", client->hostname);
168 static int fio_client_connect_ip(struct fio_client *client)
172 client->addr.sin_family = AF_INET;
173 client->addr.sin_port = htons(client->port);
175 fd = socket(AF_INET, SOCK_STREAM, 0);
177 log_err("fio: socket: %s\n", strerror(errno));
181 if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) {
182 log_err("fio: connect: %s\n", strerror(errno));
183 log_err("fio: failed to connect to %s:%u\n", client->hostname,
192 static int fio_client_connect_sock(struct fio_client *client)
194 struct sockaddr_un *addr = &client->addr_un;
198 memset(addr, 0, sizeof(*addr));
199 addr->sun_family = AF_UNIX;
200 strcpy(addr->sun_path, client->hostname);
202 fd = socket(AF_UNIX, SOCK_STREAM, 0);
204 log_err("fio: socket: %s\n", strerror(errno));
208 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
209 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
210 log_err("fio: connect; %s\n", strerror(errno));
218 static int fio_client_connect(struct fio_client *client)
222 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
225 fd = fio_client_connect_sock(client);
227 fd = fio_client_connect_ip(client);
233 fio_client_add_hash(client);
234 client->state = Client_connected;
238 void fio_clients_terminate(void)
240 struct flist_head *entry;
241 struct fio_client *client;
243 dprint(FD_NET, "client: terminate clients\n");
245 flist_for_each(entry, &client_list) {
246 client = flist_entry(entry, struct fio_client, list);
248 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0);
252 static void sig_int(int sig)
254 dprint(FD_NET, "client: got signal %d\n", sig);
255 fio_clients_terminate();
258 static void client_signal_handler(void)
260 struct sigaction act;
262 memset(&act, 0, sizeof(act));
263 act.sa_handler = sig_int;
264 act.sa_flags = SA_RESTART;
265 sigaction(SIGINT, &act, NULL);
267 memset(&act, 0, sizeof(act));
268 act.sa_handler = sig_int;
269 act.sa_flags = SA_RESTART;
270 sigaction(SIGTERM, &act, NULL);
273 static void probe_client(struct fio_client *client)
275 dprint(FD_NET, "client: send probe\n");
277 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0);
278 handle_client(client);
281 static int send_client_cmd_line(struct fio_client *client)
283 struct cmd_line_pdu *pdu;
286 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
288 pdu = malloc(sizeof(*pdu));
289 for (i = 0; i < client->argc; i++)
290 strcpy((char *) pdu->argv[i], client->argv[i]);
292 pdu->argc = cpu_to_le16(client->argc);
293 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, sizeof(*pdu));
298 int fio_clients_connect(void)
300 struct fio_client *client;
301 struct flist_head *entry, *tmp;
304 dprint(FD_NET, "client: connect all\n");
306 client_signal_handler();
308 flist_for_each_safe(entry, tmp, &client_list) {
309 client = flist_entry(entry, struct fio_client, list);
311 ret = fio_client_connect(client);
313 remove_client(client);
317 probe_client(client);
319 if (client->argc > 1)
320 send_client_cmd_line(client);
327 * Send file contents to server backend. We could use sendfile(), but to remain
328 * more portable lets just read/write the darn thing.
330 static int fio_client_send_ini(struct fio_client *client, const char *filename)
337 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
339 fd = open(filename, O_RDONLY);
341 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
345 if (fstat(fd, &sb) < 0) {
346 log_err("fio: job file stat: %s\n", strerror(errno));
351 buf = malloc(sb.st_size);
356 ret = read(fd, p, len);
365 else if (errno == EAGAIN || errno == EINTR)
370 log_err("fio: failed reading job file %s\n", filename);
376 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size);
382 int fio_clients_send_ini(const char *filename)
384 struct fio_client *client;
385 struct flist_head *entry, *tmp;
387 flist_for_each_safe(entry, tmp, &client_list) {
388 client = flist_entry(entry, struct fio_client, list);
390 if (fio_client_send_ini(client, filename))
391 remove_client(client);
397 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
399 dst->max_val = le64_to_cpu(src->max_val);
400 dst->min_val = le64_to_cpu(src->min_val);
401 dst->samples = le64_to_cpu(src->samples);
404 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
406 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
407 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
410 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
414 dst->error = le32_to_cpu(src->error);
415 dst->groupid = le32_to_cpu(src->groupid);
416 dst->pid = le32_to_cpu(src->pid);
417 dst->members = le32_to_cpu(src->members);
419 for (i = 0; i < 2; i++) {
420 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
421 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
422 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
423 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
426 dst->usr_time = le64_to_cpu(src->usr_time);
427 dst->sys_time = le64_to_cpu(src->sys_time);
428 dst->ctx = le64_to_cpu(src->ctx);
429 dst->minf = le64_to_cpu(src->minf);
430 dst->majf = le64_to_cpu(src->majf);
431 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
433 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
434 fio_fp64_t *fps = &src->percentile_list[i];
435 fio_fp64_t *fpd = &dst->percentile_list[i];
437 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
440 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
441 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
442 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
443 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
446 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
447 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
448 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
451 for (i = 0; i < 2; i++)
452 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
453 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
455 for (i = 0; i < 3; i++) {
456 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
457 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
460 dst->total_submit = le64_to_cpu(src->total_submit);
461 dst->total_complete = le64_to_cpu(src->total_complete);
463 for (i = 0; i < 2; i++) {
464 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
465 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
468 dst->total_run_time = le64_to_cpu(src->total_run_time);
469 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
470 dst->total_err_count = le64_to_cpu(src->total_err_count);
471 dst->first_error = le32_to_cpu(src->first_error);
472 dst->kb_base = le32_to_cpu(src->kb_base);
475 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
479 for (i = 0; i < 2; i++) {
480 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
481 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
482 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
483 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
484 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
485 dst->agg[i] = le64_to_cpu(src->agg[i]);
488 dst->kb_base = le32_to_cpu(src->kb_base);
489 dst->groupid = le32_to_cpu(src->groupid);
492 static void handle_ts(struct fio_net_cmd *cmd)
494 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
496 convert_ts(&p->ts, &p->ts);
497 convert_gs(&p->rs, &p->rs);
499 show_thread_status(&p->ts, &p->rs);
502 static void handle_gs(struct fio_net_cmd *cmd)
504 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
507 show_group_stats(gs);
510 static void handle_eta(struct fio_net_cmd *cmd)
512 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
515 je->nr_running = le32_to_cpu(je->nr_running);
516 je->nr_ramp = le32_to_cpu(je->nr_ramp);
517 je->nr_pending = le32_to_cpu(je->nr_pending);
518 je->files_open = le32_to_cpu(je->files_open);
519 je->m_rate = le32_to_cpu(je->m_rate);
520 je->t_rate = le32_to_cpu(je->t_rate);
521 je->m_iops = le32_to_cpu(je->m_iops);
522 je->t_iops = le32_to_cpu(je->t_iops);
524 for (i = 0; i < 2; i++) {
525 je->rate[i] = le32_to_cpu(je->rate[i]);
526 je->iops[i] = le32_to_cpu(je->iops[i]);
529 je->elapsed_sec = le32_to_cpu(je->nr_running);
530 je->eta_sec = le64_to_cpu(je->eta_sec);
532 display_thread_status(je);
535 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
537 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
538 const char *os, *arch;
540 os = fio_get_os_string(probe->os);
544 arch = fio_get_arch_string(probe->arch);
548 log_info("hostname=%s, be=%u, os=%s, arch=%s, fio=%u.%u.%u\n",
549 probe->hostname, probe->bigendian, os, arch, probe->fio_major,
550 probe->fio_minor, probe->fio_patch);
553 client->name = strdup((char *) probe->hostname);
556 static int handle_client(struct fio_client *client)
558 struct fio_net_cmd *cmd;
560 dprint(FD_NET, "client: handle %s\n", client->hostname);
562 cmd = fio_net_recv_cmd(client->fd);
566 dprint(FD_NET, "client: got cmd op %d from %s\n",
567 cmd->opcode, client->hostname);
569 switch (cmd->opcode) {
570 case FIO_NET_CMD_QUIT:
571 remove_client(client);
574 case FIO_NET_CMD_TEXT: {
575 const char *buf = (const char *) cmd->payload;
579 name = client->name ? client->name : client->hostname;
581 if (!client->skip_newline)
582 fprintf(f_out, "<%s> ", name);
583 ret = fwrite(buf, cmd->pdu_len, 1, f_out);
585 client->skip_newline = strchr(buf, '\n') == NULL;
597 case FIO_NET_CMD_ETA:
601 case FIO_NET_CMD_PROBE:
602 handle_probe(client, cmd);
605 case FIO_NET_CMD_START:
606 client->state = Client_started;
609 case FIO_NET_CMD_STOP:
610 client->state = Client_stopped;
614 log_err("fio: unknown client op: %d\n", cmd->opcode);
622 int fio_handle_clients(void)
624 struct fio_client *client;
625 struct flist_head *entry;
629 pfds = malloc(nr_clients * sizeof(struct pollfd));
631 while (!exit_backend && nr_clients) {
633 flist_for_each(entry, &client_list) {
634 client = flist_entry(entry, struct fio_client, list);
636 pfds[i].fd = client->fd;
637 pfds[i].events = POLLIN;
641 assert(i == nr_clients);
644 ret = poll(pfds, nr_clients, 100);
648 log_err("fio: poll clients: %s\n", strerror(errno));
654 for (i = 0; i < nr_clients; i++) {
655 if (!(pfds[i].revents & POLLIN))
658 client = find_client_by_fd(pfds[i].fd);
660 log_err("fio: unknown client fd %d\n", pfds[i].fd);
663 if (!handle_client(client)) {
664 log_info("client: host=%s disconnected\n",
666 remove_client(client);