Merge branch 'asmfix' of https://github.com/oohal/fio
[fio.git] / client.c
index 35cbf68cfa82860507ba12f616c27207a926f796..281d853f14a771f1ecb36b62fedc5f5ca565848b 100644 (file)
--- a/client.c
+++ b/client.c
@@ -33,6 +33,8 @@ static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd);
 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd);
 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd);
 
+static void convert_text(struct fio_net_cmd *cmd);
+
 struct client_ops fio_client_ops = {
        .text           = handle_text,
        .disk_util      = handle_du,
@@ -46,7 +48,7 @@ struct client_ops fio_client_ops = {
        .client_type    = FIO_CLIENT_TYPE_CLI,
 };
 
-static struct timeval eta_tv;
+static struct timespec eta_ts;
 
 static FLIST_HEAD(client_list);
 static FLIST_HEAD(eta_list);
@@ -59,6 +61,7 @@ int sum_stat_clients;
 
 static int sum_stat_nr;
 static struct json_object *root = NULL;
+static struct json_object *job_opt_object = NULL;
 static struct json_array *clients_array = NULL;
 static struct json_array *du_array = NULL;
 
@@ -69,6 +72,8 @@ static int error_clients;
 #define FIO_CLIENT_HASH_MASK   (FIO_CLIENT_HASH_SZ - 1)
 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
 
+static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *, bool *);
+
 static void fio_client_add_hash(struct fio_client *client)
 {
        int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
@@ -117,10 +122,23 @@ static int read_data(int fd, void *data, size_t size)
 
 static void fio_client_json_init(void)
 {
+       char time_buf[32];
+       time_t time_p;
+
        if (!(output_format & FIO_OUTPUT_JSON))
                return;
+
+       time(&time_p);
+       os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
+       time_buf[strlen(time_buf) - 1] = '\0';
+
        root = json_create_object();
        json_object_add_value_string(root, "fio version", fio_version_string);
+       json_object_add_value_int(root, "timestamp", time_p);
+       json_object_add_value_string(root, "time", time_buf);
+
+       job_opt_object = json_create_object();
+       json_object_add_value_object(root, "global options", job_opt_object);
        clients_array = json_create_array();
        json_object_add_value_array(root, "client_stats", clients_array);
        du_array = json_create_array();
@@ -131,6 +149,8 @@ static void fio_client_json_fini(void)
 {
        if (!(output_format & FIO_OUTPUT_JSON))
                return;
+
+       log_info("\n");
        json_print_object(root, NULL);
        log_info("\n");
        json_free_object(root);
@@ -174,6 +194,8 @@ void fio_put_client(struct fio_client *client)
        }
        if (client->files)
                free(client->files);
+       if (client->opt_lists)
+               free(client->opt_lists);
 
        if (!client->did_stat)
                sum_stat_clients--;
@@ -195,12 +217,32 @@ static int fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
        return 1;
 }
 
+static void fio_drain_client_text(struct fio_client *client)
+{
+       do {
+               struct fio_net_cmd *cmd;
+
+               cmd = fio_net_recv_cmd(client->fd, false);
+               if (!cmd)
+                       break;
+
+               if (cmd->opcode == FIO_NET_CMD_TEXT) {
+                       convert_text(cmd);
+                       client->ops->text(client, cmd);
+               }
+
+               free(cmd);
+       } while (1);
+}
+
 static void remove_client(struct fio_client *client)
 {
        assert(client->refs);
 
        dprint(FD_NET, "client: removed <%s>\n", client->hostname);
 
+       fio_drain_client_text(client);
+
        if (!flist_empty(&client->list))
                flist_del_init(&client->list);
 
@@ -276,7 +318,7 @@ struct fio_client *fio_client_add_explicit(struct client_ops *ops,
        client->hostname = strdup(hostname);
 
        if (type == Fio_client_socket)
-               client->is_sock = 1;
+               client->is_sock = true;
        else {
                int ipv6;
 
@@ -305,7 +347,7 @@ err:
        return NULL;
 }
 
-int fio_client_add_ini_file(void *cookie, const char *ini_file, int remote)
+int fio_client_add_ini_file(void *cookie, const char *ini_file, bool remote)
 {
        struct fio_client *client = cookie;
        struct client_file *cf;
@@ -515,7 +557,7 @@ int fio_client_terminate(struct fio_client *client)
        return fio_net_send_quit(client->fd);
 }
 
-void fio_clients_terminate(void)
+static void fio_clients_terminate(void)
 {
        struct flist_head *entry;
        struct fio_client *client;
@@ -686,7 +728,7 @@ static int __fio_client_send_remote_ini(struct fio_client *client,
        strcpy((char *) pdu->file, filename);
        pdu->client_type = cpu_to_le16((uint16_t) client->type);
 
-       client->sent_job = 1;
+       client->sent_job = true;
        ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_LOAD_FILE, pdu, p_size,NULL, NULL);
        free(pdu);
        return ret;
@@ -739,7 +781,7 @@ static int __fio_client_send_local_ini(struct fio_client *client,
        pdu->buf_len = __cpu_to_le32(sb.st_size);
        pdu->client_type = cpu_to_le32(client->type);
 
-       client->sent_job = 1;
+       client->sent_job = true;
        ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, pdu, p_size, NULL, NULL);
        free(pdu);
        close(fd);
@@ -747,7 +789,7 @@ static int __fio_client_send_local_ini(struct fio_client *client,
 }
 
 int fio_client_send_ini(struct fio_client *client, const char *filename,
-                       int remote)
+                       bool remote)
 {
        int ret;
 
@@ -757,7 +799,7 @@ int fio_client_send_ini(struct fio_client *client, const char *filename,
                ret = __fio_client_send_remote_ini(client, filename);
 
        if (!ret)
-               client->sent_job = 1;
+               client->sent_job = true;
 
        return ret;
 }
@@ -774,6 +816,8 @@ int fio_clients_send_ini(const char *filename)
        struct flist_head *entry, *tmp;
 
        flist_for_each_safe(entry, tmp, &client_list) {
+               bool failed = false;
+
                client = flist_entry(entry, struct fio_client, list);
 
                if (client->nr_files) {
@@ -785,12 +829,13 @@ int fio_clients_send_ini(const char *filename)
                                cf = &client->files[i];
 
                                if (fio_client_send_cf(client, cf)) {
+                                       failed = true;
                                        remove_client(client);
                                        break;
                                }
                        }
                }
-               if (client->sent_job)
+               if (client->sent_job || failed)
                        continue;
                if (!filename || fio_client_send_ini(client, filename, 0))
                        remove_client(client);
@@ -840,6 +885,7 @@ static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
                convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
                convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
                convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
+               convert_io_stat(&dst->iops_stat[i], &src->iops_stat[i]);
        }
 
        dst->usr_time           = le64_to_cpu(src->usr_time);
@@ -863,10 +909,12 @@ static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
                dst->io_u_complete[i]   = le32_to_cpu(src->io_u_complete[i]);
        }
 
-       for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
+       for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
+               dst->io_u_lat_n[i]      = le32_to_cpu(src->io_u_lat_n[i]);
+       for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
                dst->io_u_lat_u[i]      = le32_to_cpu(src->io_u_lat_u[i]);
+       for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
                dst->io_u_lat_m[i]      = le32_to_cpu(src->io_u_lat_m[i]);
-       }
 
        for (i = 0; i < DDIR_RWDIR_CNT; i++)
                for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
@@ -901,6 +949,21 @@ static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
        dst->nr_block_infos     = le64_to_cpu(src->nr_block_infos);
        for (i = 0; i < dst->nr_block_infos; i++)
                dst->block_infos[i] = le32_to_cpu(src->block_infos[i]);
+
+       dst->ss_dur             = le64_to_cpu(src->ss_dur);
+       dst->ss_state           = le32_to_cpu(src->ss_state);
+       dst->ss_head            = le32_to_cpu(src->ss_head);
+       dst->ss_limit.u.f       = fio_uint64_to_double(le64_to_cpu(src->ss_limit.u.i));
+       dst->ss_slope.u.f       = fio_uint64_to_double(le64_to_cpu(src->ss_slope.u.i));
+       dst->ss_deviation.u.f   = fio_uint64_to_double(le64_to_cpu(src->ss_deviation.u.i));
+       dst->ss_criterion.u.f   = fio_uint64_to_double(le64_to_cpu(src->ss_criterion.u.i));
+
+       if (dst->ss_state & __FIO_SS_DATA) {
+               for (i = 0; i < dst->ss_dur; i++ ) {
+                       dst->ss_iops_data[i] = le64_to_cpu(src->ss_iops_data[i]);
+                       dst->ss_bw_data[i] = le64_to_cpu(src->ss_bw_data[i]);
+               }
+       }
 }
 
 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
@@ -912,7 +975,7 @@ static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
                dst->min_run[i]         = le64_to_cpu(src->min_run[i]);
                dst->max_bw[i]          = le64_to_cpu(src->max_bw[i]);
                dst->min_bw[i]          = le64_to_cpu(src->min_bw[i]);
-               dst->io_kb[i]           = le64_to_cpu(src->io_kb[i]);
+               dst->iobytes[i]         = le64_to_cpu(src->iobytes[i]);
                dst->agg[i]             = le64_to_cpu(src->agg[i]);
        }
 
@@ -934,10 +997,14 @@ static void json_object_add_client_info(struct json_object *obj,
 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
 {
        struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
+       struct flist_head *opt_list = NULL;
        struct json_object *tsobj;
 
-       tsobj = show_thread_status(&p->ts, &p->rs, NULL);
-       client->did_stat = 1;
+       if (client->opt_lists && p->ts.thread_number <= client->jobs)
+               opt_list = &client->opt_lists[p->ts.thread_number - 1];
+
+       tsobj = show_thread_status(&p->ts, &p->rs, opt_list, NULL);
+       client->did_stat = true;
        if (tsobj) {
                json_object_add_client_info(tsobj, client);
                json_array_add_value_object(clients_array, tsobj);
@@ -956,7 +1023,7 @@ static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
 
        if (++sum_stat_nr == sum_stat_clients) {
                strcpy(client_ts.name, "All clients");
-               tsobj = show_thread_status(&client_ts, &client_gs, NULL);
+               tsobj = show_thread_status(&client_ts, &client_gs, NULL, NULL);
                if (tsobj) {
                        json_object_add_client_info(tsobj, client);
                        json_array_add_value_object(clients_array, tsobj);
@@ -968,7 +1035,41 @@ static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
 {
        struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
 
-       show_group_stats(gs, NULL);
+       if (output_format & FIO_OUTPUT_NORMAL)
+               show_group_stats(gs, NULL);
+}
+
+static void handle_job_opt(struct fio_client *client, struct fio_net_cmd *cmd)
+{
+       struct cmd_job_option *pdu = (struct cmd_job_option *) cmd->payload;
+       struct print_option *p;
+
+       if (!job_opt_object)
+               return;
+
+       pdu->global = le16_to_cpu(pdu->global);
+       pdu->truncated = le16_to_cpu(pdu->truncated);
+       pdu->groupid = le32_to_cpu(pdu->groupid);
+
+       p = malloc(sizeof(*p));
+       p->name = strdup((char *) pdu->name);
+       if (pdu->value[0] != '\0')
+               p->value = strdup((char *) pdu->value);
+       else
+               p->value = NULL;
+
+       if (pdu->global) {
+               const char *pos = "";
+
+               if (p->value)
+                       pos = p->value;
+
+               json_object_add_value_string(job_opt_object, p->name, pos);
+       } else if (client->opt_lists) {
+               struct flist_head *opt_list = &client->opt_lists[pdu->groupid];
+
+               flist_add_tail(&p->list, opt_list);
+       }
 }
 
 static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
@@ -1025,7 +1126,7 @@ static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
        struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
 
        if (!client->disk_stats_shown) {
-               client->disk_stats_shown = 1;
+               client->disk_stats_shown = true;
                log_info("\nDisk stats (read/write):\n");
        }
 
@@ -1052,11 +1153,11 @@ static void convert_jobs_eta(struct jobs_eta *je)
        je->files_open          = le32_to_cpu(je->files_open);
 
        for (i = 0; i < DDIR_RWDIR_CNT; i++) {
-               je->m_rate[i]   = le32_to_cpu(je->m_rate[i]);
-               je->t_rate[i]   = le32_to_cpu(je->t_rate[i]);
+               je->m_rate[i]   = le64_to_cpu(je->m_rate[i]);
+               je->t_rate[i]   = le64_to_cpu(je->t_rate[i]);
                je->m_iops[i]   = le32_to_cpu(je->m_iops[i]);
                je->t_iops[i]   = le32_to_cpu(je->t_iops[i]);
-               je->rate[i]     = le32_to_cpu(je->rate[i]);
+               je->rate[i]     = le64_to_cpu(je->rate[i]);
                je->iops[i]     = le32_to_cpu(je->iops[i]);
        }
 
@@ -1100,7 +1201,7 @@ void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
        strcpy((char *) dst->run_str, (char *) je->run_str);
 }
 
-static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
+static bool remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
 {
        struct fio_net_cmd_reply *reply = NULL;
        struct flist_head *entry;
@@ -1116,12 +1217,13 @@ static void remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
 
        if (!reply) {
                log_err("fio: client: unable to find matching tag (%llx)\n", (unsigned long long) cmd->tag);
-               return;
+               return false;
        }
 
        flist_del(&reply->list);
        cmd->tag = reply->saved_tag;
        free(reply);
+       return true;
 }
 
 int fio_client_wait_for_reply(struct fio_client *client, uint64_t tag)
@@ -1168,6 +1270,111 @@ static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
        fio_client_dec_jobs_eta(eta, client->ops->eta);
 }
 
+static void client_flush_hist_samples(FILE *f, int hist_coarseness, void *samples,
+                                     uint64_t sample_size)
+{
+       struct io_sample *s;
+       int log_offset;
+       uint64_t i, j, nr_samples;
+       struct io_u_plat_entry *entry;
+       unsigned int *io_u_plat;
+
+       int stride = 1 << hist_coarseness;
+
+       if (!sample_size)
+               return;
+
+       s = __get_sample(samples, 0, 0);
+       log_offset = (s->__ddir & LOG_OFFSET_SAMPLE_BIT) != 0;
+
+       nr_samples = sample_size / __log_entry_sz(log_offset);
+
+       for (i = 0; i < nr_samples; i++) {
+
+               s = (struct io_sample *)((char *)__get_sample(samples, log_offset, i) +
+                       i * sizeof(struct io_u_plat_entry));
+
+               entry = s->data.plat_entry;
+               io_u_plat = entry->io_u_plat;
+
+               fprintf(f, "%lu, %u, %u, ", (unsigned long) s->time,
+                                               io_sample_ddir(s), s->bs);
+               for (j = 0; j < FIO_IO_U_PLAT_NR - stride; j += stride) {
+                       fprintf(f, "%lu, ", hist_sum(j, stride, io_u_plat, NULL));
+               }
+               fprintf(f, "%lu\n", (unsigned long)
+                       hist_sum(FIO_IO_U_PLAT_NR - stride, stride, io_u_plat, NULL));
+
+       }
+}
+
+static int fio_client_handle_iolog(struct fio_client *client,
+                                  struct fio_net_cmd *cmd)
+{
+       struct cmd_iolog_pdu *pdu;
+       bool store_direct;
+       char *log_pathname;
+
+       pdu = convert_iolog(cmd, &store_direct);
+       if (!pdu) {
+               log_err("fio: failed converting IO log\n");
+               return 1;
+       }
+
+        /* allocate buffer big enough for next sprintf() call */
+       log_pathname = malloc(10 + strlen((char *)pdu->name) +
+                       strlen(client->hostname));
+       if (!log_pathname) {
+               log_err("fio: memory allocation of unique pathname failed\n");
+               return -1;
+       }
+       /* generate a unique pathname for the log file using hostname */
+       sprintf(log_pathname, "%s.%s", pdu->name, client->hostname);
+
+       if (store_direct) {
+               ssize_t ret;
+               size_t sz;
+               int fd;
+
+               fd = open((const char *) log_pathname,
+                               O_WRONLY | O_CREAT | O_TRUNC, 0644);
+               if (fd < 0) {
+                       log_err("fio: open log %s: %s\n",
+                               log_pathname, strerror(errno));
+                       return 1;
+               }
+
+               sz = cmd->pdu_len - sizeof(*pdu);
+               ret = write(fd, pdu->samples, sz);
+               close(fd);
+
+               if (ret != sz) {
+                       log_err("fio: short write on compressed log\n");
+                       return 1;
+               }
+
+               return 0;
+       } else {
+               FILE *f;
+               f = fopen((const char *) log_pathname, "w");
+               if (!f) {
+                       log_err("fio: fopen log %s : %s\n",
+                               log_pathname, strerror(errno));
+                       return 1;
+               }
+
+               if (pdu->log_type == IO_LOG_TYPE_HIST) {
+                       client_flush_hist_samples(f, pdu->log_hist_coarseness, pdu->samples,
+                                          pdu->nr_samples * sizeof(struct io_sample));
+               } else {
+                       flush_samples(f, pdu->samples,
+                                       pdu->nr_samples * sizeof(struct io_sample));
+               }
+               fclose(f);
+               return 0;
+       }
+}
+
 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
 {
        struct cmd_probe_reply_pdu *probe = (struct cmd_probe_reply_pdu *) cmd->payload;
@@ -1201,6 +1408,17 @@ static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
        client->jobs = le32_to_cpu(pdu->jobs);
        client->nr_stat = le32_to_cpu(pdu->stat_outputs);
 
+       if (client->jobs) {
+               int i;
+
+               if (client->opt_lists)
+                       free(client->opt_lists);
+
+               client->opt_lists = malloc(client->jobs * sizeof(struct flist_head));
+               for (i = 0; i < client->jobs; i++)
+                       INIT_FLIST_HEAD(&client->opt_lists[i]);
+       }
+
        sum_stat_clients += client->nr_stat;
 }
 
@@ -1235,7 +1453,7 @@ static struct cmd_iolog_pdu *convert_iolog_gz(struct fio_net_cmd *cmd,
        z_stream stream;
        uint32_t nr_samples;
        size_t total;
-       void *p;
+       char *p;
 
        stream.zalloc = Z_NULL;
        stream.zfree = Z_NULL;
@@ -1251,16 +1469,20 @@ static struct cmd_iolog_pdu *convert_iolog_gz(struct fio_net_cmd *cmd,
         */
        nr_samples = le64_to_cpu(pdu->nr_samples);
 
-       total = nr_samples * __log_entry_sz(le32_to_cpu(pdu->log_offset));
+       if (pdu->log_type == IO_LOG_TYPE_HIST)
+               total = nr_samples * (__log_entry_sz(le32_to_cpu(pdu->log_offset)) +
+                                       sizeof(struct io_u_plat_entry));
+       else
+               total = nr_samples * __log_entry_sz(le32_to_cpu(pdu->log_offset));
        ret = malloc(total + sizeof(*pdu));
        ret->nr_samples = nr_samples;
 
        memcpy(ret, pdu, sizeof(*pdu));
 
-       p = (void *) ret + sizeof(*pdu);
+       p = (char *) ret + sizeof(*pdu);
 
        stream.avail_in = cmd->pdu_len - sizeof(*pdu);
-       stream.next_in = (void *) pdu + sizeof(*pdu);
+       stream.next_in = (void *)((char *) pdu + sizeof(*pdu));
        while (stream.avail_in) {
                unsigned int this_chunk = 65536;
                unsigned int this_len;
@@ -1270,7 +1492,7 @@ static struct cmd_iolog_pdu *convert_iolog_gz(struct fio_net_cmd *cmd,
                        this_chunk = total;
 
                stream.avail_out = this_chunk;
-               stream.next_out = p;
+               stream.next_out = (void *)p;
                err = inflate(&stream, Z_NO_FLUSH);
                /* may be Z_OK, or Z_STREAM_END */
                if (err < 0) {
@@ -1297,18 +1519,23 @@ err:
  * This has been compressed on the server side, since it can be big.
  * Uncompress here.
  */
-static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd)
+static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd,
+                                          bool *store_direct)
 {
        struct cmd_iolog_pdu *pdu = (struct cmd_iolog_pdu *) cmd->payload;
        struct cmd_iolog_pdu *ret;
        uint64_t i;
+       int compressed;
        void *samples;
 
+       *store_direct = false;
+
        /*
         * Convert if compressed and we support it. If it's not
         * compressed, we need not do anything.
         */
-       if (le32_to_cpu(pdu->compressed)) {
+       compressed = le32_to_cpu(pdu->compressed);
+       if (compressed == XMIT_COMPRESSED) {
 #ifndef CONFIG_ZLIB
                log_err("fio: server sent compressed data by mistake\n");
                return NULL;
@@ -1318,6 +1545,9 @@ static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd)
                        log_err("fio: failed decompressing log\n");
                        return NULL;
                }
+       } else if (compressed == STORE_COMPRESSED) {
+               *store_direct = true;
+               ret = pdu;
        } else
                ret = pdu;
 
@@ -1326,14 +1556,21 @@ static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd)
        ret->log_type           = le32_to_cpu(ret->log_type);
        ret->compressed         = le32_to_cpu(ret->compressed);
        ret->log_offset         = le32_to_cpu(ret->log_offset);
+       ret->log_hist_coarseness = le32_to_cpu(ret->log_hist_coarseness);
+
+       if (*store_direct)
+               return ret;
 
        samples = &ret->samples[0];
        for (i = 0; i < ret->nr_samples; i++) {
                struct io_sample *s;
 
                s = __get_sample(samples, ret->log_offset, i);
+               if (ret->log_type == IO_LOG_TYPE_HIST)
+                       s = (struct io_sample *)((char *)s + sizeof(struct io_u_plat_entry) * i);
+
                s->time         = le64_to_cpu(s->time);
-               s->val          = le64_to_cpu(s->val);
+               s->data.val     = le64_to_cpu(s->data.val);
                s->__ddir       = le32_to_cpu(s->__ddir);
                s->bs           = le32_to_cpu(s->bs);
 
@@ -1342,6 +1579,12 @@ static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd)
 
                        so->offset = le64_to_cpu(so->offset);
                }
+
+               if (ret->log_type == IO_LOG_TYPE_HIST) {
+                       s->data.plat_entry = (struct io_u_plat_entry *)(((char *)s) + sizeof(*s));
+                       s->data.plat_entry->list.next = NULL;
+                       s->data.plat_entry->list.prev = NULL;
+               }
        }
 
        return ret;
@@ -1354,8 +1597,8 @@ static void sendfile_reply(int fd, struct cmd_sendfile_reply *rep,
        fio_net_send_cmd(fd, FIO_NET_CMD_SENDFILE, rep, size, &tag, NULL);
 }
 
-static int send_file(struct fio_client *client, struct cmd_sendfile *pdu,
-                    uint64_t tag)
+static int fio_send_file(struct fio_client *client, struct cmd_sendfile *pdu,
+                        uint64_t tag)
 {
        struct cmd_sendfile_reply *rep;
        struct stat sb;
@@ -1392,10 +1635,11 @@ int fio_handle_client(struct fio_client *client)
 {
        struct client_ops *ops = client->ops;
        struct fio_net_cmd *cmd;
+       int size;
 
        dprint(FD_NET, "client: handle %s\n", client->hostname);
 
-       cmd = fio_net_recv_cmd(client->fd);
+       cmd = fio_net_recv_cmd(client->fd, true);
        if (!cmd)
                return 0;
 
@@ -1424,6 +1668,15 @@ int fio_handle_client(struct fio_client *client)
        case FIO_NET_CMD_TS: {
                struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
 
+               dprint(FD_NET, "client: ts->ss_state = %u\n", (unsigned int) le32_to_cpu(p->ts.ss_state));
+               if (le32_to_cpu(p->ts.ss_state) & __FIO_SS_DATA) {
+                       dprint(FD_NET, "client: received steadystate ring buffers\n");
+
+                       size = le64_to_cpu(p->ts.ss_dur);
+                       p->ts.ss_iops_data = (uint64_t *) ((struct cmd_ts_pdu *)cmd->payload + 1);
+                       p->ts.ss_bw_data = p->ts.ss_iops_data + size;
+               }
+
                convert_ts(&p->ts, &p->ts);
                convert_gs(&p->rs, &p->rs);
 
@@ -1441,7 +1694,8 @@ int fio_handle_client(struct fio_client *client)
        case FIO_NET_CMD_ETA: {
                struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
 
-               remove_reply_cmd(client, cmd);
+               if (!remove_reply_cmd(client, cmd))
+                       break;
                convert_jobs_eta(je);
                handle_eta(client, cmd);
                break;
@@ -1483,12 +1737,7 @@ int fio_handle_client(struct fio_client *client)
                break;
                }
        case FIO_NET_CMD_IOLOG:
-               if (ops->iolog) {
-                       struct cmd_iolog_pdu *pdu;
-
-                       pdu = convert_iolog(cmd);
-                       ops->iolog(client, pdu);
-               }
+               fio_client_handle_iolog(client, cmd);
                break;
        case FIO_NET_CMD_UPDATE_JOB:
                ops->update_job(client, cmd);
@@ -1510,9 +1759,13 @@ int fio_handle_client(struct fio_client *client)
                }
        case FIO_NET_CMD_SENDFILE: {
                struct cmd_sendfile *pdu = (struct cmd_sendfile *) cmd->payload;
-               send_file(client, pdu, cmd->tag);
+               fio_send_file(client, pdu, cmd->tag);
                break;
                }
+       case FIO_NET_CMD_JOB_OPT: {
+               handle_job_opt(client, cmd);
+               break;
+       }
        default:
                log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
                break;
@@ -1595,12 +1848,13 @@ static void request_client_etas(struct client_ops *ops)
 static int handle_cmd_timeout(struct fio_client *client,
                              struct fio_net_cmd_reply *reply)
 {
+       flist_del(&reply->list);
+       free(reply);
+
        if (reply->opcode != FIO_NET_CMD_SEND_ETA)
                return 1;
 
        log_info("client <%s>: timeout on SEND_ETA\n", client->hostname);
-       flist_del(&reply->list);
-       free(reply);
 
        flist_del_init(&client->eta_list);
        if (client->eta_in_flight) {
@@ -1618,7 +1872,7 @@ static int handle_cmd_timeout(struct fio_client *client,
 }
 
 static int client_check_cmd_timeout(struct fio_client *client,
-                                   struct timeval *now)
+                                   struct timespec *now)
 {
        struct fio_net_cmd_reply *reply;
        struct flist_head *entry, *tmp;
@@ -1627,7 +1881,7 @@ static int client_check_cmd_timeout(struct fio_client *client,
        flist_for_each_safe(entry, tmp, &client->cmd_list) {
                reply = flist_entry(entry, struct fio_net_cmd_reply, list);
 
-               if (mtime_since(&reply->tv, now) < FIO_NET_CLIENT_TIMEOUT)
+               if (mtime_since(&reply->ts, now) < FIO_NET_CLIENT_TIMEOUT)
                        continue;
 
                if (!handle_cmd_timeout(client, reply))
@@ -1635,8 +1889,6 @@ static int client_check_cmd_timeout(struct fio_client *client,
 
                log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
                                                fio_server_op(reply->opcode));
-               flist_del(&reply->list);
-               free(reply);
                ret = 1;
        }
 
@@ -1647,10 +1899,10 @@ static int fio_check_clients_timed_out(void)
 {
        struct fio_client *client;
        struct flist_head *entry, *tmp;
-       struct timeval tv;
+       struct timespec ts;
        int ret = 0;
 
-       fio_gettime(&tv, NULL);
+       fio_gettime(&ts, NULL);
 
        flist_for_each_safe(entry, tmp, &client_list) {
                client = flist_entry(entry, struct fio_client, list);
@@ -1658,7 +1910,7 @@ static int fio_check_clients_timed_out(void)
                if (flist_empty(&client->cmd_list))
                        continue;
 
-               if (!client_check_cmd_timeout(client, &tv))
+               if (!client_check_cmd_timeout(client, &ts))
                        continue;
 
                if (client->ops->timed_out)
@@ -1679,7 +1931,7 @@ int fio_handle_clients(struct client_ops *ops)
        struct pollfd *pfds;
        int i, ret = 0, retval = 0;
 
-       fio_gettime(&eta_tv, NULL);
+       fio_gettime(&eta_ts, NULL);
 
        pfds = malloc(nr_clients * sizeof(struct pollfd));
 
@@ -1711,13 +1963,13 @@ int fio_handle_clients(struct client_ops *ops)
                assert(i == nr_clients);
 
                do {
-                       struct timeval tv;
+                       struct timespec ts;
                        int timeout;
 
-                       fio_gettime(&tv, NULL);
-                       if (mtime_since(&eta_tv, &tv) >= 900) {
+                       fio_gettime(&ts, NULL);
+                       if (mtime_since(&eta_ts, &ts) >= 900) {
                                request_client_etas(ops);
-                               memcpy(&eta_tv, &tv, sizeof(tv));
+                               memcpy(&eta_ts, &ts, sizeof(ts));
 
                                if (fio_check_clients_timed_out())
                                        break;