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;
48 static FLIST_HEAD(client_list);
50 #define FIO_CLIENT_HASH_BITS 7
51 #define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
52 #define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
53 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
55 static int handle_client(struct fio_client *client);
57 static void fio_client_add_hash(struct fio_client *client)
59 int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
61 bucket &= FIO_CLIENT_HASH_MASK;
62 flist_add(&client->hash_list, &client_hash[bucket]);
65 static void fio_client_remove_hash(struct fio_client *client)
67 if (!flist_empty(&client->hash_list))
68 flist_del_init(&client->hash_list);
71 static void fio_init fio_client_hash_init(void)
75 for (i = 0; i < FIO_CLIENT_HASH_SZ; i++)
76 INIT_FLIST_HEAD(&client_hash[i]);
79 static struct fio_client *find_client_by_fd(int fd)
81 int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
82 struct fio_client *client;
83 struct flist_head *entry;
85 flist_for_each(entry, &client_hash[bucket]) {
86 client = flist_entry(entry, struct fio_client, hash_list);
95 static void remove_client(struct fio_client *client)
97 dprint(FD_NET, "client: removed <%s>\n", client->hostname);
98 flist_del(&client->list);
100 fio_client_remove_hash(client);
102 free(client->hostname);
110 static int __fio_client_add_cmd_option(struct fio_client *client,
115 if (client->argc == FIO_NET_CMD_JOBLINE_ARGV) {
116 log_err("fio: max cmd line number reached.\n");
117 log_err("fio: cmd line <%s> has been ignored.\n", opt);
121 index = client->argc++;
122 client->argv = realloc(client->argv, sizeof(char *) * client->argc);
123 client->argv[index] = strdup(opt);
124 dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
128 int fio_client_add_cmd_option(void *cookie, const char *opt)
130 struct fio_client *client = cookie;
135 return __fio_client_add_cmd_option(client, opt);
138 int fio_client_add(const char *hostname, void **cookie)
140 struct fio_client *client;
142 client = malloc(sizeof(*client));
143 memset(client, 0, sizeof(*client));
145 INIT_FLIST_HEAD(&client->list);
146 INIT_FLIST_HEAD(&client->hash_list);
148 if (fio_server_parse_string(hostname, &client->hostname,
149 &client->is_sock, &client->port,
150 &client->addr.sin_addr))
153 printf("%s %d %d\n", client->hostname, client->is_sock, client->port);
157 __fio_client_add_cmd_option(client, "fio");
159 flist_add(&client->list, &client_list);
161 dprint(FD_NET, "client: added <%s>\n", client->hostname);
166 static int fio_client_connect_ip(struct fio_client *client)
170 client->addr.sin_family = AF_INET;
171 client->addr.sin_port = htons(client->port);
173 fd = socket(AF_INET, SOCK_STREAM, 0);
175 log_err("fio: socket: %s\n", strerror(errno));
179 if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) {
180 log_err("fio: connect: %s\n", strerror(errno));
181 log_err("fio: failed to connect to %s\n", client->hostname);
189 static int fio_client_connect_sock(struct fio_client *client)
191 struct sockaddr_un *addr = &client->addr_un;
195 memset(addr, 0, sizeof(*addr));
196 addr->sun_family = AF_UNIX;
197 strcpy(addr->sun_path, client->hostname);
199 fd = socket(AF_UNIX, SOCK_STREAM, 0);
201 log_err("fio: socket: %s\n", strerror(errno));
205 len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
206 if (connect(fd, (struct sockaddr *) addr, len) < 0) {
207 log_err("fio: connect; %s\n", strerror(errno));
215 static int fio_client_connect(struct fio_client *client)
219 dprint(FD_NET, "client: connect to host %s\n", client->hostname);
221 memset(&client->addr, 0, sizeof(client->addr));
224 fd = fio_client_connect_sock(client);
226 fd = fio_client_connect_ip(client);
232 fio_client_add_hash(client);
233 client->state = Client_connected;
237 void fio_clients_terminate(void)
239 struct flist_head *entry;
240 struct fio_client *client;
242 dprint(FD_NET, "client: terminate clients\n");
244 flist_for_each(entry, &client_list) {
245 client = flist_entry(entry, struct fio_client, list);
247 fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0);
251 static void sig_int(int sig)
253 dprint(FD_NET, "client: got signal %d\n", sig);
254 fio_clients_terminate();
257 static void client_signal_handler(void)
259 struct sigaction act;
261 memset(&act, 0, sizeof(act));
262 act.sa_handler = sig_int;
263 act.sa_flags = SA_RESTART;
264 sigaction(SIGINT, &act, NULL);
266 memset(&act, 0, sizeof(act));
267 act.sa_handler = sig_int;
268 act.sa_flags = SA_RESTART;
269 sigaction(SIGTERM, &act, NULL);
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);
277 handle_client(client);
280 static int send_client_cmd_line(struct fio_client *client)
282 struct cmd_line_pdu *pdu;
285 dprint(FD_NET, "client: send cmdline %d\n", client->argc);
287 pdu = malloc(sizeof(*pdu));
288 for (i = 0; i < client->argc; i++)
289 strcpy((char *) pdu->argv[i], client->argv[i]);
291 pdu->argc = cpu_to_le16(client->argc);
292 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, sizeof(*pdu));
297 int fio_clients_connect(void)
299 struct fio_client *client;
300 struct flist_head *entry, *tmp;
303 dprint(FD_NET, "client: connect all\n");
305 client_signal_handler();
307 flist_for_each_safe(entry, tmp, &client_list) {
308 client = flist_entry(entry, struct fio_client, list);
310 ret = fio_client_connect(client);
312 remove_client(client);
316 probe_client(client);
318 if (client->argc > 1)
319 send_client_cmd_line(client);
326 * Send file contents to server backend. We could use sendfile(), but to remain
327 * more portable lets just read/write the darn thing.
329 static int fio_client_send_ini(struct fio_client *client, const char *filename)
336 dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
338 fd = open(filename, O_RDONLY);
340 log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
344 if (fstat(fd, &sb) < 0) {
345 log_err("fio: job file stat: %s\n", strerror(errno));
350 buf = malloc(sb.st_size);
355 ret = read(fd, p, len);
364 else if (errno == EAGAIN || errno == EINTR)
369 log_err("fio: failed reading job file %s\n", filename);
374 ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size);
380 int fio_clients_send_ini(const char *filename)
382 struct fio_client *client;
383 struct flist_head *entry, *tmp;
385 flist_for_each_safe(entry, tmp, &client_list) {
386 client = flist_entry(entry, struct fio_client, list);
388 if (fio_client_send_ini(client, filename))
389 remove_client(client);
395 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
397 dst->max_val = le64_to_cpu(src->max_val);
398 dst->min_val = le64_to_cpu(src->min_val);
399 dst->samples = le64_to_cpu(src->samples);
402 * Floats arrive as IEEE 754 encoded uint64_t, convert back to double
404 dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
405 dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
408 static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
412 dst->error = le32_to_cpu(src->error);
413 dst->groupid = le32_to_cpu(src->groupid);
414 dst->pid = le32_to_cpu(src->pid);
415 dst->members = le32_to_cpu(src->members);
417 for (i = 0; i < 2; i++) {
418 convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
419 convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
420 convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
421 convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
424 dst->usr_time = le64_to_cpu(src->usr_time);
425 dst->sys_time = le64_to_cpu(src->sys_time);
426 dst->ctx = le64_to_cpu(src->ctx);
427 dst->minf = le64_to_cpu(src->minf);
428 dst->majf = le64_to_cpu(src->majf);
429 dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
431 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
432 fio_fp64_t *fps = &src->percentile_list[i];
433 fio_fp64_t *fpd = &dst->percentile_list[i];
435 fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
438 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
439 dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
440 dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
441 dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
444 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
445 dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
446 dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
449 for (i = 0; i < 2; i++)
450 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
451 dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
453 for (i = 0; i < 3; i++) {
454 dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
455 dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
458 dst->total_submit = le64_to_cpu(src->total_submit);
459 dst->total_complete = le64_to_cpu(src->total_complete);
461 for (i = 0; i < 2; i++) {
462 dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
463 dst->runtime[i] = le64_to_cpu(src->runtime[i]);
466 dst->total_run_time = le64_to_cpu(src->total_run_time);
467 dst->continue_on_error = le16_to_cpu(src->continue_on_error);
468 dst->total_err_count = le64_to_cpu(src->total_err_count);
469 dst->first_error = le32_to_cpu(src->first_error);
470 dst->kb_base = le32_to_cpu(src->kb_base);
473 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
477 for (i = 0; i < 2; i++) {
478 dst->max_run[i] = le64_to_cpu(src->max_run[i]);
479 dst->min_run[i] = le64_to_cpu(src->min_run[i]);
480 dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
481 dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
482 dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
483 dst->agg[i] = le64_to_cpu(src->agg[i]);
486 dst->kb_base = le32_to_cpu(src->kb_base);
487 dst->groupid = le32_to_cpu(src->groupid);
490 static void handle_ts(struct fio_net_cmd *cmd)
492 struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
494 convert_ts(&p->ts, &p->ts);
495 convert_gs(&p->rs, &p->rs);
497 show_thread_status(&p->ts, &p->rs);
500 static void handle_gs(struct fio_net_cmd *cmd)
502 struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
505 show_group_stats(gs);
508 static void handle_eta(struct fio_net_cmd *cmd)
510 struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
513 je->nr_running = le32_to_cpu(je->nr_running);
514 je->nr_ramp = le32_to_cpu(je->nr_ramp);
515 je->nr_pending = le32_to_cpu(je->nr_pending);
516 je->files_open = le32_to_cpu(je->files_open);
517 je->m_rate = le32_to_cpu(je->m_rate);
518 je->t_rate = le32_to_cpu(je->t_rate);
519 je->m_iops = le32_to_cpu(je->m_iops);
520 je->t_iops = le32_to_cpu(je->t_iops);
522 for (i = 0; i < 2; i++) {
523 je->rate[i] = le32_to_cpu(je->rate[i]);
524 je->iops[i] = le32_to_cpu(je->iops[i]);
527 je->elapsed_sec = le32_to_cpu(je->nr_running);
528 je->eta_sec = le64_to_cpu(je->eta_sec);
530 display_thread_status(je);
533 static void handle_probe(struct fio_net_cmd *cmd)
535 struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;
537 log_info("Probe: hostname=%s, be=%u, fio ver %u.%u.%u\n",
538 probe->hostname, probe->bigendian, probe->fio_major,
539 probe->fio_minor, probe->fio_patch);
542 static int handle_client(struct fio_client *client)
544 struct fio_net_cmd *cmd;
546 dprint(FD_NET, "client: handle %s\n", client->hostname);
548 cmd = fio_net_recv_cmd(client->fd);
552 dprint(FD_NET, "client: got cmd op %d from %s\n",
553 cmd->opcode, client->hostname);
555 switch (cmd->opcode) {
556 case FIO_NET_CMD_QUIT:
557 remove_client(client);
560 case FIO_NET_CMD_TEXT: {
561 const char *buf = (const char *) cmd->payload;
564 if (!client->skip_newline)
565 fprintf(f_out, "<%s> ", client->hostname);
566 ret = fwrite(buf, cmd->pdu_len, 1, f_out);
568 client->skip_newline = strchr(buf, '\n') == NULL;
580 case FIO_NET_CMD_ETA:
584 case FIO_NET_CMD_PROBE:
588 case FIO_NET_CMD_START:
589 client->state = Client_started;
592 case FIO_NET_CMD_STOP:
593 client->state = Client_stopped;
597 log_err("fio: unknown client op: %d\n", cmd->opcode);
605 int fio_handle_clients(void)
607 struct fio_client *client;
608 struct flist_head *entry;
612 pfds = malloc(nr_clients * sizeof(struct pollfd));
614 while (!exit_backend && nr_clients) {
616 flist_for_each(entry, &client_list) {
617 client = flist_entry(entry, struct fio_client, list);
619 pfds[i].fd = client->fd;
620 pfds[i].events = POLLIN;
624 assert(i == nr_clients);
627 ret = poll(pfds, nr_clients, 100);
631 log_err("fio: poll clients: %s\n", strerror(errno));
637 for (i = 0; i < nr_clients; i++) {
638 if (!(pfds[i].revents & POLLIN))
641 client = find_client_by_fd(pfds[i].fd);
643 log_err("fio: unknown client fd %d\n", pfds[i].fd);
646 if (!handle_client(client)) {
647 log_info("client: host=%s disconnected\n",
649 remove_client(client);