Revert "client: respect terse output on client <--> backend relationship"
[fio.git] / client.c
index 96bb29c..f7726f7 100644 (file)
--- a/client.c
+++ b/client.c
@@ -1,13 +1,11 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
-#include <limits.h>
 #include <errno.h>
 #include <fcntl.h>
-#include <sys/poll.h>
+#include <poll.h>
 #include <sys/types.h>
 #include <sys/stat.h>
-#include <sys/wait.h>
 #include <sys/socket.h>
 #include <sys/un.h>
 #include <netinet/in.h>
 #include "server.h"
 #include "flist.h"
 #include "hash.h"
-#include "verify.h"
+#include "verify-state.h"
 
 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
 static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd);
 static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd);
 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
 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_stop(struct fio_client *client);
 static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd);
 
 static void convert_text(struct fio_net_cmd *cmd);
+static void client_display_thread_status(struct jobs_eta *je);
 
 struct client_ops fio_client_ops = {
        .text           = handle_text,
@@ -42,13 +41,13 @@ struct client_ops fio_client_ops = {
        .group_stats    = handle_gs,
        .stop           = handle_stop,
        .start          = handle_start,
-       .eta            = display_thread_status,
+       .eta            = client_display_thread_status,
        .probe          = handle_probe,
        .eta_msec       = FIO_CLIENT_DEF_ETA_MSEC,
        .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);
@@ -120,6 +119,58 @@ static int read_data(int fd, void *data, size_t size)
        return 0;
 }
 
+static int read_ini_data(int fd, void *data, size_t size)
+{
+       char *p = data;
+       int ret = 0;
+       FILE *fp;
+       int dupfd;
+
+       dupfd = dup(fd);
+       if (dupfd < 0)
+               return errno;
+
+       fp = fdopen(dupfd, "r");
+       if (!fp) {
+               ret = errno;
+               close(dupfd);
+               goto out;
+       }
+
+       while (1) {
+               ssize_t len;
+               char buf[OPT_LEN_MAX+1], *sub;
+
+               if (!fgets(buf, sizeof(buf), fp)) {
+                       if (ferror(fp)) {
+                               if (errno == EAGAIN || errno == EINTR)
+                                       continue;
+                               ret = errno;
+                       }
+                       break;
+               }
+
+               sub = fio_option_dup_subs(buf);
+               len = strlen(sub);
+               if (len + 1 > size) {
+                       log_err("fio: no space left to read data\n");
+                       free(sub);
+                       ret = ENOSPC;
+                       break;
+               }
+
+               memcpy(p, sub, len);
+               free(sub);
+               p += len;
+               *p = '\0';
+               size -= len;
+       }
+
+       fclose(fp);
+out:
+       return ret;
+}
+
 static void fio_client_json_init(void)
 {
        char time_buf[32];
@@ -318,7 +369,7 @@ 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;
 
@@ -557,7 +608,7 @@ 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;
@@ -728,7 +779,7 @@ 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;
@@ -765,13 +816,17 @@ static int __fio_client_send_local_ini(struct fio_client *client,
                return ret;
        }
 
+       /*
+        * Add extra space for variable expansion, but doesn't guarantee.
+        */
+       sb.st_size += OPT_LEN_MAX;
        p_size = sb.st_size + sizeof(*pdu);
        pdu = malloc(p_size);
        buf = pdu->buf;
 
        len = sb.st_size;
        p = buf;
-       if (read_data(fd, p, len)) {
+       if (read_ini_data(fd, p, len)) {
                log_err("fio: failed reading job file %s\n", filename);
                close(fd);
                free(pdu);
@@ -781,7 +836,7 @@ 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);
@@ -799,7 +854,7 @@ 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;
 }
@@ -885,6 +940,7 @@ 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);
@@ -892,7 +948,8 @@ static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
        dst->ctx                = le64_to_cpu(src->ctx);
        dst->minf               = le64_to_cpu(src->minf);
        dst->majf               = le64_to_cpu(src->majf);
-       dst->clat_percentiles   = le64_to_cpu(src->clat_percentiles);
+       dst->clat_percentiles   = le32_to_cpu(src->clat_percentiles);
+       dst->lat_percentiles    = le32_to_cpu(src->lat_percentiles);
        dst->percentile_precision = le64_to_cpu(src->percentile_precision);
 
        for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
@@ -903,19 +960,21 @@ static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
        }
 
        for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
-               dst->io_u_map[i]        = le32_to_cpu(src->io_u_map[i]);
-               dst->io_u_submit[i]     = le32_to_cpu(src->io_u_submit[i]);
-               dst->io_u_complete[i]   = le32_to_cpu(src->io_u_complete[i]);
+               dst->io_u_map[i]        = le64_to_cpu(src->io_u_map[i]);
+               dst->io_u_submit[i]     = le64_to_cpu(src->io_u_submit[i]);
+               dst->io_u_complete[i]   = le64_to_cpu(src->io_u_complete[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]);
-               dst->io_u_lat_m[i]      = le32_to_cpu(src->io_u_lat_m[i]);
-       }
+       for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
+               dst->io_u_lat_n[i]      = le64_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]      = le64_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]      = le64_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++)
-                       dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
+                       dst->io_u_plat[i][j] = le64_to_cpu(src->io_u_plat[i][j]);
 
        for (i = 0; i < DDIR_RWDIR_CNT; i++) {
                dst->total_io_u[i]      = le64_to_cpu(src->total_io_u[i]);
@@ -938,6 +997,8 @@ static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
        dst->kb_base            = le32_to_cpu(src->kb_base);
        dst->unit_base          = le32_to_cpu(src->unit_base);
 
+       dst->sig_figs           = le32_to_cpu(src->sig_figs);
+
        dst->latency_depth      = le32_to_cpu(src->latency_depth);
        dst->latency_target     = le64_to_cpu(src->latency_target);
        dst->latency_window     = le64_to_cpu(src->latency_window);
@@ -950,13 +1011,12 @@ static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
        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_sum_y           = le64_to_cpu(src->ss_sum_y);
        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) {
+       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]);
@@ -973,12 +1033,13 @@ 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]);
        }
 
        dst->kb_base    = le32_to_cpu(src->kb_base);
        dst->unit_base  = le32_to_cpu(src->unit_base);
+       dst->sig_figs   = le32_to_cpu(src->sig_figs);
        dst->groupid    = le32_to_cpu(src->groupid);
        dst->unified_rw_rep     = le32_to_cpu(src->unified_rw_rep);
 }
@@ -1002,7 +1063,7 @@ static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
                opt_list = &client->opt_lists[p->ts.thread_number - 1];
 
        tsobj = show_thread_status(&p->ts, &p->rs, opt_list, NULL);
-       client->did_stat = 1;
+       client->did_stat = true;
        if (tsobj) {
                json_object_add_client_info(tsobj, client);
                json_array_add_value_object(clients_array, tsobj);
@@ -1018,6 +1079,7 @@ static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
        client_ts.thread_number = p->ts.thread_number;
        client_ts.groupid = p->ts.groupid;
        client_ts.unified_rw_rep = p->ts.unified_rw_rep;
+       client_ts.sig_figs = p->ts.sig_figs;
 
        if (++sum_stat_nr == sum_stat_clients) {
                strcpy(client_ts.name, "All clients");
@@ -1076,13 +1138,17 @@ static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
        const char *buf = (const char *) pdu->buf;
        const char *name;
        int fio_unused ret;
+       struct buf_output out;
+
+       buf_output_init(&out);
 
        name = client->name ? client->name : client->hostname;
 
-       if (!client->skip_newline)
-               fprintf(f_out, "<%s> ", name);
-       ret = fwrite(buf, pdu->buf_len, 1, f_out);
-       fflush(f_out);
+       if (!client->skip_newline && !(output_format & FIO_OUTPUT_TERSE))
+               __log_buf(&out, "<%s> ", name);
+       __log_buf(&out, "%s", buf);
+       log_info_buf(out.buf, out.buflen);
+       buf_output_free(&out);
        client->skip_newline = strchr(buf, '\n') == NULL;
 }
 
@@ -1124,8 +1190,9 @@ 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;
-               log_info("\nDisk stats (read/write):\n");
+               client->disk_stats_shown = true;
+               if (!(output_format & FIO_OUTPUT_JSON))
+                       log_info("\nDisk stats (read/write):\n");
        }
 
        if (output_format & FIO_OUTPUT_JSON) {
@@ -1151,11 +1218,11 @@ 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]);
        }
 
@@ -1164,6 +1231,7 @@ static void convert_jobs_eta(struct jobs_eta *je)
        je->nr_threads          = le32_to_cpu(je->nr_threads);
        je->is_pow2             = le32_to_cpu(je->is_pow2);
        je->unit_base           = le32_to_cpu(je->unit_base);
+       je->sig_figs            = le32_to_cpu(je->sig_figs);
 }
 
 void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
@@ -1199,7 +1267,7 @@ 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;
@@ -1215,12 +1283,13 @@ 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)
@@ -1267,54 +1336,124 @@ 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;
+       uint64_t *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, %llu, ", (unsigned long) s->time,
+                                               io_sample_ddir(s), (unsigned long long) s->bs);
+               for (j = 0; j < FIO_IO_U_PLAT_NR - stride; j += stride) {
+                       fprintf(f, "%llu, ", (unsigned long long)hist_sum(j, stride, io_u_plat, NULL));
+               }
+               fprintf(f, "%llu\n", (unsigned long 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;
+       struct cmd_iolog_pdu *pdu = NULL;
        bool store_direct;
+       char *log_pathname = NULL;
+       int ret = 0;
 
        pdu = convert_iolog(cmd, &store_direct);
        if (!pdu) {
                log_err("fio: failed converting IO log\n");
-               return 1;
+               ret = 1;
+               goto out;
+       }
+
+        /* 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");
+               ret = -1;
+               goto out;
        }
+       /* 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;
+               ssize_t wrote;
                size_t sz;
                int fd;
 
-               fd = open((const char *) pdu->name,
+               fd = open((const char *) log_pathname,
                                O_WRONLY | O_CREAT | O_TRUNC, 0644);
                if (fd < 0) {
-                       log_err("fio: open log: %s\n", strerror(errno));
-                       return 1;
+                       log_err("fio: open log %s: %s\n",
+                               log_pathname, strerror(errno));
+                       ret = 1;
+                       goto out;
                }
 
                sz = cmd->pdu_len - sizeof(*pdu);
-               ret = write(fd, pdu->samples, sz);
+               wrote = write(fd, pdu->samples, sz);
                close(fd);
 
-               if (ret != sz) {
+               if (wrote != sz) {
                        log_err("fio: short write on compressed log\n");
-                       return 1;
+                       ret = 1;
+                       goto out;
                }
 
-               return 0;
+               ret = 0;
        } else {
                FILE *f;
-
-               f = fopen((const char *) pdu->name, "w");
+               f = fopen((const char *) log_pathname, "w");
                if (!f) {
-                       log_err("fio: fopen log: %s\n", strerror(errno));
-                       return 1;
+                       log_err("fio: fopen log %s : %s\n",
+                               log_pathname, strerror(errno));
+                       ret = 1;
+                       goto out;
                }
 
-               flush_samples(f, pdu->samples,
-                               pdu->nr_samples * sizeof(struct io_sample));
+               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;
+               ret = 0;
        }
+
+out:
+       if (pdu && pdu != (void *) cmd->payload)
+               free(pdu);
+
+       if (log_pathname)
+               free(log_pathname);
+
+       return ret;
 }
 
 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
@@ -1334,9 +1473,10 @@ static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
        sprintf(bit, "%d-bit", probe->bpp * 8);
        probe->flags = le64_to_cpu(probe->flags);
 
-       log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%s, flags=%lx\n",
-               probe->hostname, probe->bigendian, bit, os, arch,
-               probe->fio_version, (unsigned long) probe->flags);
+       if (!(output_format & FIO_OUTPUT_JSON))
+               log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%s, flags=%lx\n",
+                       probe->hostname, probe->bigendian, bit, os, arch,
+                       probe->fio_version, (unsigned long) probe->flags);
 
        if (!client->name)
                client->name = strdup((char *) probe->hostname);
@@ -1364,7 +1504,7 @@ static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
        sum_stat_clients += client->nr_stat;
 }
 
-static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
+static void handle_stop(struct fio_client *client)
 {
        if (client->error)
                log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
@@ -1393,9 +1533,9 @@ static struct cmd_iolog_pdu *convert_iolog_gz(struct fio_net_cmd *cmd,
 #ifdef CONFIG_ZLIB
        struct cmd_iolog_pdu *ret;
        z_stream stream;
-       uint32_t nr_samples;
+       uint64_t nr_samples;
        size_t total;
-       void *p;
+       char *p;
 
        stream.zalloc = Z_NULL;
        stream.zfree = Z_NULL;
@@ -1411,16 +1551,20 @@ 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;
@@ -1430,7 +1574,7 @@ 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) {
@@ -1494,6 +1638,7 @@ 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;
@@ -1503,16 +1648,25 @@ static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd,
                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);
+               s->bs           = le64_to_cpu(s->bs);
 
                if (ret->log_offset) {
                        struct io_sample_offset *so = (void *) s;
 
                        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;
@@ -1574,6 +1728,8 @@ int fio_handle_client(struct fio_client *client)
        dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
                fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
 
+       client->last_cmd = cmd->opcode;
+
        switch (cmd->opcode) {
        case FIO_NET_CMD_QUIT:
                if (ops->quit)
@@ -1597,7 +1753,7 @@ int fio_handle_client(struct fio_client *client)
                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) {
+               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);
@@ -1622,7 +1778,8 @@ 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;
@@ -1650,7 +1807,7 @@ int fio_handle_client(struct fio_client *client)
                client->state = Client_stopped;
                client->error = le32_to_cpu(pdu->error);
                client->signal = le32_to_cpu(pdu->signal);
-               ops->stop(client, cmd);
+               ops->stop(client);
                break;
                }
        case FIO_NET_CMD_ADD_JOB: {
@@ -1739,6 +1896,9 @@ static void request_client_etas(struct client_ops *ops)
        struct client_eta *eta;
        int skipped = 0;
 
+       if (eta_print == FIO_ETA_NEVER)
+               return;
+
        dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
 
        eta = calloc(1, sizeof(*eta) + __THREAD_RUNSTR_SZ(REAL_MAX_JOBS));
@@ -1775,10 +1935,12 @@ static void request_client_etas(struct client_ops *ops)
 static int handle_cmd_timeout(struct fio_client *client,
                              struct fio_net_cmd_reply *reply)
 {
+       uint16_t reply_opcode = reply->opcode;
+
        flist_del(&reply->list);
        free(reply);
 
-       if (reply->opcode != FIO_NET_CMD_SEND_ETA)
+       if (reply_opcode != FIO_NET_CMD_SEND_ETA)
                return 1;
 
        log_info("client <%s>: timeout on SEND_ETA\n", client->hostname);
@@ -1799,23 +1961,26 @@ 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;
        int ret = 0;
 
        flist_for_each_safe(entry, tmp, &client->cmd_list) {
+               unsigned int op;
+
                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;
 
+               op = reply->opcode;
                if (!handle_cmd_timeout(client, reply))
                        continue;
 
                log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
-                                               fio_server_op(reply->opcode));
+                                               fio_server_op(op));
                ret = 1;
        }
 
@@ -1826,10 +1991,10 @@ 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);
@@ -1837,7 +2002,7 @@ 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)
@@ -1845,7 +2010,10 @@ static int fio_check_clients_timed_out(void)
                else
                        log_err("fio: client %s timed out\n", client->hostname);
 
-               client->error = ETIMEDOUT;
+               if (client->last_cmd != FIO_NET_CMD_VTRIGGER)
+                       client->error = ETIMEDOUT;
+               else
+                       log_info("fio: ignoring timeout due to vtrigger\n");
                remove_client(client);
                ret = 1;
        }
@@ -1858,7 +2026,7 @@ 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));
 
@@ -1890,13 +2058,13 @@ 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 (eta_time_within_slack(mtime_since(&eta_ts, &ts))) {
                                request_client_etas(ops);
-                               memcpy(&eta_tv, &tv, sizeof(tv));
+                               memcpy(&eta_ts, &ts, sizeof(ts));
 
                                if (fio_check_clients_timed_out())
                                        break;
@@ -1941,3 +2109,9 @@ int fio_handle_clients(struct client_ops *ops)
        free(pfds);
        return retval || error_clients;
 }
+
+static void client_display_thread_status(struct jobs_eta *je)
+{
+       if (!(output_format & FIO_OUTPUT_JSON))
+               display_thread_status(je);
+}