zbd: rename zbd_zone_idx() and zbd_zone_nr()
[fio.git] / stat.c
diff --git a/stat.c b/stat.c
index d8c01d14d594769df3c4e95a1451d9e767bb39af..7e84058d9b911294956d0970e218cf97ea0a3344 100644 (file)
--- a/stat.c
+++ b/stat.c
 #include "zbd.h"
 #include "oslib/asprintf.h"
 
+#ifdef WIN32
+#define LOG_MSEC_SLACK 2
+#else
 #define LOG_MSEC_SLACK 1
+#endif
 
 struct fio_sem *stat_sem;
 
@@ -211,7 +215,7 @@ static void show_clat_percentiles(uint64_t *io_u_plat, unsigned long long nr,
 
        len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
        if (!len || !ovals)
-               goto out;
+               return;
 
        /*
         * We default to nsecs, but if the value range is such that we
@@ -258,7 +262,6 @@ static void show_clat_percentiles(uint64_t *io_u_plat, unsigned long long nr,
                        log_buf(out, "\n");
        }
 
-out:
        free(ovals);
 }
 
@@ -282,6 +285,46 @@ bool calc_lat(struct io_stat *is, unsigned long long *min,
        return true;
 }
 
+void show_mixed_group_stats(struct group_run_stats *rs, struct buf_output *out) 
+{
+       char *io, *agg, *min, *max;
+       char *ioalt, *aggalt, *minalt, *maxalt;
+       uint64_t io_mix = 0, agg_mix = 0, min_mix = -1, max_mix = 0, min_run = -1, max_run = 0;
+       int i;
+       const int i2p = is_power_of_2(rs->kb_base);
+
+       for (i = 0; i < DDIR_RWDIR_CNT; i++) {
+               if (!rs->max_run[i])
+                       continue;
+               io_mix += rs->iobytes[i];
+               agg_mix += rs->agg[i];
+               min_mix = min_mix < rs->min_bw[i] ? min_mix : rs->min_bw[i];
+               max_mix = max_mix > rs->max_bw[i] ? max_mix : rs->max_bw[i];
+               min_run = min_run < rs->min_run[i] ? min_run : rs->min_run[i];
+               max_run = max_run > rs->max_run[i] ? max_run : rs->max_run[i];
+       }
+       io = num2str(io_mix, rs->sig_figs, 1, i2p, N2S_BYTE);
+       ioalt = num2str(io_mix, rs->sig_figs, 1, !i2p, N2S_BYTE);
+       agg = num2str(agg_mix, rs->sig_figs, 1, i2p, rs->unit_base);
+       aggalt = num2str(agg_mix, rs->sig_figs, 1, !i2p, rs->unit_base);
+       min = num2str(min_mix, rs->sig_figs, 1, i2p, rs->unit_base);
+       minalt = num2str(min_mix, rs->sig_figs, 1, !i2p, rs->unit_base);
+       max = num2str(max_mix, rs->sig_figs, 1, i2p, rs->unit_base);
+       maxalt = num2str(max_mix, rs->sig_figs, 1, !i2p, rs->unit_base);
+       log_buf(out, "  MIXED: bw=%s (%s), %s-%s (%s-%s), io=%s (%s), run=%llu-%llumsec\n",
+                       agg, aggalt, min, max, minalt, maxalt, io, ioalt,
+                       (unsigned long long) min_run,
+                       (unsigned long long) max_run);
+       free(io);
+       free(agg);
+       free(min);
+       free(max);
+       free(ioalt);
+       free(aggalt);
+       free(minalt);
+       free(maxalt);
+}
+
 void show_group_stats(struct group_run_stats *rs, struct buf_output *out)
 {
        char *io, *agg, *min, *max;
@@ -306,7 +349,7 @@ void show_group_stats(struct group_run_stats *rs, struct buf_output *out)
                max = num2str(rs->max_bw[i], rs->sig_figs, 1, i2p, rs->unit_base);
                maxalt = num2str(rs->max_bw[i], rs->sig_figs, 1, !i2p, rs->unit_base);
                log_buf(out, "%s: bw=%s (%s), %s-%s (%s-%s), io=%s (%s), run=%llu-%llumsec\n",
-                               rs->unified_rw_rep ? "  MIXED" : str[i],
+                               (rs->unified_rw_rep == UNIFIED_MIXED) ? "  MIXED" : str[i],
                                agg, aggalt, min, max, minalt, maxalt, io, ioalt,
                                (unsigned long long) rs->min_run[i],
                                (unsigned long long) rs->max_run[i]);
@@ -320,6 +363,10 @@ void show_group_stats(struct group_run_stats *rs, struct buf_output *out)
                free(minalt);
                free(maxalt);
        }
+       
+       /* Need to aggregate statisitics to show mixed values */
+       if (rs->unified_rw_rep == UNIFIED_BOTH) 
+               show_mixed_group_stats(rs, out);
 }
 
 void stat_calc_dist(uint64_t *map, unsigned long total, double *io_u_dist)
@@ -414,6 +461,171 @@ static void display_lat(const char *name, unsigned long long min,
        free(maxp);
 }
 
+static double convert_agg_kbytes_percent(struct group_run_stats *rs, int ddir, int mean)
+{
+       double p_of_agg = 100.0;
+       if (rs && rs->agg[ddir] > 1024) {
+               p_of_agg = mean * 100.0 / (double) (rs->agg[ddir] / 1024.0);
+
+               if (p_of_agg > 100.0)
+                       p_of_agg = 100.0;
+       }
+       return p_of_agg;
+}
+
+static void show_mixed_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
+                            struct buf_output *out)
+{
+       unsigned long runt;
+       unsigned long long min, max, bw, iops;
+       double mean, dev;
+       char *io_p, *bw_p, *bw_p_alt, *iops_p, *post_st = NULL;
+       struct thread_stat *ts_lcl;
+
+       int i2p;
+       int ddir = 0;
+
+       /* Handle aggregation of Reads (ddir = 0), Writes (ddir = 1), and Trims (ddir = 2) */
+       ts_lcl = malloc(sizeof(struct thread_stat));
+       memset((void *)ts_lcl, 0, sizeof(struct thread_stat));
+       ts_lcl->unified_rw_rep = UNIFIED_MIXED;               /* calculate mixed stats  */
+       init_thread_stat_min_vals(ts_lcl);
+
+       sum_thread_stats(ts_lcl, ts, 1);
+
+       assert(ddir_rw(ddir));
+
+       if (!ts_lcl->runtime[ddir])
+               return;
+
+       i2p = is_power_of_2(rs->kb_base);
+       runt = ts_lcl->runtime[ddir];
+
+       bw = (1000 * ts_lcl->io_bytes[ddir]) / runt;
+       io_p = num2str(ts_lcl->io_bytes[ddir], ts->sig_figs, 1, i2p, N2S_BYTE);
+       bw_p = num2str(bw, ts->sig_figs, 1, i2p, ts->unit_base);
+       bw_p_alt = num2str(bw, ts->sig_figs, 1, !i2p, ts->unit_base);
+
+       iops = (1000 * ts_lcl->total_io_u[ddir]) / runt;
+       iops_p = num2str(iops, ts->sig_figs, 1, 0, N2S_NONE);
+
+       log_buf(out, "  mixed: IOPS=%s, BW=%s (%s)(%s/%llumsec)%s\n",
+                       iops_p, bw_p, bw_p_alt, io_p,
+                       (unsigned long long) ts_lcl->runtime[ddir],
+                       post_st ? : "");
+
+       free(post_st);
+       free(io_p);
+       free(bw_p);
+       free(bw_p_alt);
+       free(iops_p);
+
+       if (calc_lat(&ts_lcl->slat_stat[ddir], &min, &max, &mean, &dev))
+               display_lat("slat", min, max, mean, dev, out);
+       if (calc_lat(&ts_lcl->clat_stat[ddir], &min, &max, &mean, &dev))
+               display_lat("clat", min, max, mean, dev, out);
+       if (calc_lat(&ts_lcl->lat_stat[ddir], &min, &max, &mean, &dev))
+               display_lat(" lat", min, max, mean, dev, out);
+       if (calc_lat(&ts_lcl->clat_high_prio_stat[ddir], &min, &max, &mean, &dev)) {
+               display_lat(ts_lcl->lat_percentiles ? "high prio_lat" : "high prio_clat",
+                               min, max, mean, dev, out);
+               if (calc_lat(&ts_lcl->clat_low_prio_stat[ddir], &min, &max, &mean, &dev))
+                       display_lat(ts_lcl->lat_percentiles ? "low prio_lat" : "low prio_clat",
+                                       min, max, mean, dev, out);
+       }
+
+       if (ts->slat_percentiles && ts_lcl->slat_stat[ddir].samples > 0)
+               show_clat_percentiles(ts_lcl->io_u_plat[FIO_SLAT][ddir],
+                               ts_lcl->slat_stat[ddir].samples,
+                               ts->percentile_list,
+                               ts->percentile_precision, "slat", out);
+       if (ts->clat_percentiles && ts_lcl->clat_stat[ddir].samples > 0)
+               show_clat_percentiles(ts_lcl->io_u_plat[FIO_CLAT][ddir],
+                               ts_lcl->clat_stat[ddir].samples,
+                               ts->percentile_list,
+                               ts->percentile_precision, "clat", out);
+       if (ts->lat_percentiles && ts_lcl->lat_stat[ddir].samples > 0)
+               show_clat_percentiles(ts_lcl->io_u_plat[FIO_LAT][ddir],
+                               ts_lcl->lat_stat[ddir].samples,
+                               ts->percentile_list,
+                               ts->percentile_precision, "lat", out);
+
+       if (ts->clat_percentiles || ts->lat_percentiles) {
+               const char *name = ts->lat_percentiles ? "lat" : "clat";
+               char prio_name[32];
+               uint64_t samples;
+
+               if (ts->lat_percentiles)
+                       samples = ts_lcl->lat_stat[ddir].samples;
+               else
+                       samples = ts_lcl->clat_stat[ddir].samples;
+
+               /* Only print this if some high and low priority stats were collected */
+               if (ts_lcl->clat_high_prio_stat[ddir].samples > 0 &&
+                               ts_lcl->clat_low_prio_stat[ddir].samples > 0)
+               {
+                       sprintf(prio_name, "high prio (%.2f%%) %s",
+                                       100. * (double) ts_lcl->clat_high_prio_stat[ddir].samples / (double) samples,
+                                       name);
+                       show_clat_percentiles(ts_lcl->io_u_plat_high_prio[ddir],
+                                       ts_lcl->clat_high_prio_stat[ddir].samples,
+                                       ts->percentile_list,
+                                       ts->percentile_precision, prio_name, out);
+
+                       sprintf(prio_name, "low prio (%.2f%%) %s",
+                                       100. * (double) ts_lcl->clat_low_prio_stat[ddir].samples / (double) samples,
+                                       name);
+                       show_clat_percentiles(ts_lcl->io_u_plat_low_prio[ddir],
+                                       ts_lcl->clat_low_prio_stat[ddir].samples,
+                                       ts->percentile_list,
+                                       ts->percentile_precision, prio_name, out);
+               }
+       }
+
+       if (calc_lat(&ts_lcl->bw_stat[ddir], &min, &max, &mean, &dev)) {
+               double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
+               const char *bw_str;
+
+               if ((rs->unit_base == 1) && i2p)
+                       bw_str = "Kibit";
+               else if (rs->unit_base == 1)
+                       bw_str = "kbit";
+               else if (i2p)
+                       bw_str = "KiB";
+               else
+                       bw_str = "kB";
+
+               p_of_agg = convert_agg_kbytes_percent(rs, ddir, mean);
+
+               if (rs->unit_base == 1) {
+                       min *= 8.0;
+                       max *= 8.0;
+                       mean *= 8.0;
+                       dev *= 8.0;
+               }
+
+               if (mean > fkb_base * fkb_base) {
+                       min /= fkb_base;
+                       max /= fkb_base;
+                       mean /= fkb_base;
+                       dev /= fkb_base;
+                       bw_str = (rs->unit_base == 1 ? "Mibit" : "MiB");
+               }
+
+               log_buf(out, "   bw (%5s/s): min=%5llu, max=%5llu, per=%3.2f%%, "
+                       "avg=%5.02f, stdev=%5.02f, samples=%" PRIu64 "\n",
+                       bw_str, min, max, p_of_agg, mean, dev,
+                       (&ts_lcl->bw_stat[ddir])->samples);
+       }
+       if (calc_lat(&ts_lcl->iops_stat[ddir], &min, &max, &mean, &dev)) {
+               log_buf(out, "   iops        : min=%5llu, max=%5llu, "
+                       "avg=%5.02f, stdev=%5.02f, samples=%" PRIu64 "\n",
+                       min, max, mean, dev, (&ts_lcl->iops_stat[ddir])->samples);
+       }
+
+       free(ts_lcl);
+}
+
 static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
                             int ddir, struct buf_output *out)
 {
@@ -465,7 +677,7 @@ static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
        }
 
        log_buf(out, "  %s: IOPS=%s, BW=%s (%s)(%s/%llumsec)%s\n",
-                       rs->unified_rw_rep ? "mixed" : io_ddir_name(ddir),
+                       (ts->unified_rw_rep == UNIFIED_MIXED) ? "mixed" : io_ddir_name(ddir),
                        iops_p, bw_p, bw_p_alt, io_p,
                        (unsigned long long) ts->runtime[ddir],
                        post_st ? : "");
@@ -551,11 +763,7 @@ static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
                else
                        bw_str = "kB";
 
-               if (rs->agg[ddir]) {
-                       p_of_agg = mean * 100 / (double) (rs->agg[ddir] / 1024);
-                       if (p_of_agg > 100.0)
-                               p_of_agg = 100.0;
-               }
+               p_of_agg = convert_agg_kbytes_percent(rs, ddir, mean);
 
                if (rs->unit_base == 1) {
                        min *= 8.0;
@@ -1070,12 +1278,13 @@ static void show_thread_status_normal(struct thread_stat *ts,
        if (strlen(ts->description))
                log_buf(out, "  Description  : [%s]\n", ts->description);
 
-       if (ts->io_bytes[DDIR_READ])
-               show_ddir_status(rs, ts, DDIR_READ, out);
-       if (ts->io_bytes[DDIR_WRITE])
-               show_ddir_status(rs, ts, DDIR_WRITE, out);
-       if (ts->io_bytes[DDIR_TRIM])
-               show_ddir_status(rs, ts, DDIR_TRIM, out);
+       for_each_rw_ddir(ddir) {
+               if (ts->io_bytes[ddir])
+                       show_ddir_status(rs, ts, ddir, out);
+       }
+
+       if (ts->unified_rw_rep == UNIFIED_BOTH)
+               show_mixed_ddir_status(rs, ts, out);
 
        show_latencies(ts, out);
 
@@ -1199,7 +1408,7 @@ static void show_ddir_status_terse(struct thread_stat *ts,
                                        &minv);
        else
                len = 0;
-
+       
        for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
                if (i >= len) {
                        log_buf(out, ";0%%=0");
@@ -1243,6 +1452,30 @@ static void show_ddir_status_terse(struct thread_stat *ts,
        }
 }
 
+static void show_mixed_ddir_status_terse(struct thread_stat *ts,
+                                  struct group_run_stats *rs,
+                                  int ver, struct buf_output *out)
+{
+       struct thread_stat *ts_lcl;
+
+       /* Handle aggregation of Reads (ddir = 0), Writes (ddir = 1), and Trims (ddir = 2) */
+       ts_lcl = malloc(sizeof(struct thread_stat));
+       memset((void *)ts_lcl, 0, sizeof(struct thread_stat));
+       ts_lcl->unified_rw_rep = UNIFIED_MIXED;               /* calculate mixed stats  */
+       init_thread_stat_min_vals(ts_lcl);
+       ts_lcl->lat_percentiles = ts->lat_percentiles;
+       ts_lcl->clat_percentiles = ts->clat_percentiles;
+       ts_lcl->slat_percentiles = ts->slat_percentiles;
+       ts_lcl->percentile_precision = ts->percentile_precision;                
+       memcpy(ts_lcl->percentile_list, ts->percentile_list, sizeof(ts->percentile_list));
+       
+       sum_thread_stats(ts_lcl, ts, 1);
+
+       /* add the aggregated stats to json parent */
+       show_ddir_status_terse(ts_lcl, rs, DDIR_READ, ver, out);
+       free(ts_lcl);
+}
+
 static struct json_object *add_ddir_lat_json(struct thread_stat *ts, uint32_t percentiles,
                struct io_stat *lat_stat, uint64_t *io_u_plat)
 {
@@ -1304,12 +1537,12 @@ static void add_ddir_status_json(struct thread_stat *ts,
 
        assert(ddir_rw(ddir) || ddir_sync(ddir));
 
-       if (ts->unified_rw_rep && ddir != DDIR_READ)
+       if ((ts->unified_rw_rep == UNIFIED_MIXED) && ddir != DDIR_READ)
                return;
 
        dir_object = json_create_object();
        json_object_add_value_object(parent,
-               ts->unified_rw_rep ? "mixed" : io_ddir_name(ddir), dir_object);
+               (ts->unified_rw_rep == UNIFIED_MIXED) ? "mixed" : io_ddir_name(ddir), dir_object);
 
        if (ddir_rw(ddir)) {
                bw_bytes = 0;
@@ -1376,11 +1609,7 @@ static void add_ddir_status_json(struct thread_stat *ts,
        }
 
        if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
-               if (rs->agg[ddir]) {
-                       p_of_agg = mean * 100 / (double) (rs->agg[ddir] / 1024);
-                       if (p_of_agg > 100.0)
-                               p_of_agg = 100.0;
-               }
+               p_of_agg = convert_agg_kbytes_percent(rs, ddir, mean);
        } else {
                min = max = 0;
                p_of_agg = mean = dev = 0.0;
@@ -1416,6 +1645,29 @@ static void add_ddir_status_json(struct thread_stat *ts,
        }
 }
 
+static void add_mixed_ddir_status_json(struct thread_stat *ts,
+               struct group_run_stats *rs, struct json_object *parent)
+{
+       struct thread_stat *ts_lcl;
+
+       /* Handle aggregation of Reads (ddir = 0), Writes (ddir = 1), and Trims (ddir = 2) */
+       ts_lcl = malloc(sizeof(struct thread_stat));
+       memset((void *)ts_lcl, 0, sizeof(struct thread_stat));
+       ts_lcl->unified_rw_rep = UNIFIED_MIXED;               /* calculate mixed stats  */
+       init_thread_stat_min_vals(ts_lcl);
+       ts_lcl->lat_percentiles = ts->lat_percentiles;
+       ts_lcl->clat_percentiles = ts->clat_percentiles;
+       ts_lcl->slat_percentiles = ts->slat_percentiles;
+       ts_lcl->percentile_precision = ts->percentile_precision;                
+       memcpy(ts_lcl->percentile_list, ts->percentile_list, sizeof(ts->percentile_list));
+
+       sum_thread_stats(ts_lcl, ts, 1);
+
+       /* add the aggregated stats to json parent */
+       add_ddir_status_json(ts_lcl, rs, DDIR_READ, parent);
+       free(ts_lcl);
+}
+
 static void show_thread_status_terse_all(struct thread_stat *ts,
                                         struct group_run_stats *rs, int ver,
                                         struct buf_output *out)
@@ -1433,14 +1685,17 @@ static void show_thread_status_terse_all(struct thread_stat *ts,
                log_buf(out, "%d;%s;%s;%d;%d", ver, fio_version_string,
                        ts->name, ts->groupid, ts->error);
 
-       /* Log Read Status */
+       /* Log Read Status, or mixed if unified_rw_rep = 1 */
        show_ddir_status_terse(ts, rs, DDIR_READ, ver, out);
-       /* Log Write Status */
-       show_ddir_status_terse(ts, rs, DDIR_WRITE, ver, out);
-       /* Log Trim Status */
-       if (ver == 2 || ver == 4 || ver == 5)
-               show_ddir_status_terse(ts, rs, DDIR_TRIM, ver, out);
-
+       if (ts->unified_rw_rep != UNIFIED_MIXED) {
+               /* Log Write Status */
+               show_ddir_status_terse(ts, rs, DDIR_WRITE, ver, out);
+               /* Log Trim Status */
+               if (ver == 2 || ver == 4 || ver == 5)
+                       show_ddir_status_terse(ts, rs, DDIR_TRIM, ver, out);
+       }
+       if (ts->unified_rw_rep == UNIFIED_BOTH)
+               show_mixed_ddir_status_terse(ts, rs, ver, out);
        /* CPU Usage */
        if (ts->total_run_time) {
                double runt = (double) ts->total_run_time;
@@ -1506,12 +1761,8 @@ static void json_add_job_opts(struct json_object *root, const char *name,
        json_object_add_value_object(root, name, dir_object);
 
        flist_for_each(entry, opt_list) {
-               const char *pos = "";
-
                p = flist_entry(entry, struct print_option, list);
-               if (p->value)
-                       pos = p->value;
-               json_object_add_value_string(dir_object, p->name, pos);
+               json_object_add_value_string(dir_object, p->name, p->value);
        }
 }
 
@@ -1549,6 +1800,9 @@ static struct json_object *show_thread_status_json(struct thread_stat *ts,
        add_ddir_status_json(ts, rs, DDIR_TRIM, root);
        add_ddir_status_json(ts, rs, DDIR_SYNC, root);
 
+       if (ts->unified_rw_rep == UNIFIED_BOTH)
+               add_mixed_ddir_status_json(ts, rs, root);
+
        /* CPU Usage */
        if (ts->total_run_time) {
                double runt = (double) ts->total_run_time;
@@ -1877,7 +2131,7 @@ void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
        int k, l, m;
 
        for (l = 0; l < DDIR_RWDIR_CNT; l++) {
-               if (!dst->unified_rw_rep) {
+               if (!(dst->unified_rw_rep == UNIFIED_MIXED)) {
                        sum_stat(&dst->clat_stat[l], &src->clat_stat[l], first, false);
                        sum_stat(&dst->clat_high_prio_stat[l], &src->clat_high_prio_stat[l], first, false);
                        sum_stat(&dst->clat_low_prio_stat[l], &src->clat_low_prio_stat[l], first, false);
@@ -1933,7 +2187,7 @@ void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
                dst->io_u_lat_m[k] += src->io_u_lat_m[k];
 
        for (k = 0; k < DDIR_RWDIR_CNT; k++) {
-               if (!dst->unified_rw_rep) {
+               if (!(dst->unified_rw_rep == UNIFIED_MIXED)) {
                        dst->total_io_u[k] += src->total_io_u[k];
                        dst->short_io_u[k] += src->short_io_u[k];
                        dst->drop_io_u[k] += src->drop_io_u[k];
@@ -1949,7 +2203,7 @@ void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
        for (k = 0; k < FIO_LAT_CNT; k++)
                for (l = 0; l < DDIR_RWDIR_CNT; l++)
                        for (m = 0; m < FIO_IO_U_PLAT_NR; m++)
-                               if (!dst->unified_rw_rep)
+                               if (!(dst->unified_rw_rep == UNIFIED_MIXED))
                                        dst->io_u_plat[k][l][m] += src->io_u_plat[k][l][m];
                                else
                                        dst->io_u_plat[k][0][m] += src->io_u_plat[k][l][m];
@@ -1959,7 +2213,7 @@ void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
 
        for (k = 0; k < DDIR_RWDIR_CNT; k++) {
                for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
-                       if (!dst->unified_rw_rep) {
+                       if (!(dst->unified_rw_rep == UNIFIED_MIXED)) {
                                dst->io_u_plat_high_prio[k][m] += src->io_u_plat_high_prio[k][m];
                                dst->io_u_plat_low_prio[k][m] += src->io_u_plat_low_prio[k][m];
                        } else {
@@ -1987,22 +2241,27 @@ void init_group_run_stat(struct group_run_stats *gs)
                gs->min_bw[i] = gs->min_run[i] = ~0UL;
 }
 
-void init_thread_stat(struct thread_stat *ts)
+void init_thread_stat_min_vals(struct thread_stat *ts)
 {
-       int j;
+       int i;
 
+       for (i = 0; i < DDIR_RWDIR_CNT; i++) {
+               ts->clat_stat[i].min_val = ULONG_MAX;
+               ts->slat_stat[i].min_val = ULONG_MAX;
+               ts->lat_stat[i].min_val = ULONG_MAX;
+               ts->bw_stat[i].min_val = ULONG_MAX;
+               ts->iops_stat[i].min_val = ULONG_MAX;
+               ts->clat_high_prio_stat[i].min_val = ULONG_MAX;
+               ts->clat_low_prio_stat[i].min_val = ULONG_MAX;
+       }
+       ts->sync_stat.min_val = ULONG_MAX;
+}
+
+void init_thread_stat(struct thread_stat *ts)
+{
        memset(ts, 0, sizeof(*ts));
 
-       for (j = 0; j < DDIR_RWDIR_CNT; j++) {
-               ts->lat_stat[j].min_val = -1UL;
-               ts->clat_stat[j].min_val = -1UL;
-               ts->slat_stat[j].min_val = -1UL;
-               ts->bw_stat[j].min_val = -1UL;
-               ts->iops_stat[j].min_val = -1UL;
-               ts->clat_high_prio_stat[j].min_val = -1UL;
-               ts->clat_low_prio_stat[j].min_val = -1UL;
-       }
-       ts->sync_stat.min_val = -1UL;
+       init_thread_stat_min_vals(ts);
        ts->groupid = -1;
 }
 
@@ -2168,7 +2427,7 @@ void __show_run_stats(void)
                rs->kb_base = ts->kb_base;
                rs->unit_base = ts->unit_base;
                rs->sig_figs = ts->sig_figs;
-               rs->unified_rw_rep += ts->unified_rw_rep;
+               rs->unified_rw_rep |= ts->unified_rw_rep;
 
                for (j = 0; j < DDIR_RWDIR_CNT; j++) {
                        if (!ts->runtime[j])
@@ -2301,7 +2560,7 @@ void __show_run_stats(void)
        free(opt_lists);
 }
 
-void __show_running_run_stats(void)
+int __show_running_run_stats(void)
 {
        struct thread_data *td;
        unsigned long long *rt;
@@ -2315,9 +2574,9 @@ void __show_running_run_stats(void)
 
        for_each_td(td, i) {
                td->update_rusage = 1;
-               td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
-               td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
-               td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
+               for_each_rw_ddir(ddir) {
+                       td->ts.io_bytes[ddir] = td->io_bytes[ddir];
+               }
                td->ts.total_run_time = mtime_since(&td->epoch, &ts);
 
                rt[i] = mtime_since(&td->start, &ts);
@@ -2352,10 +2611,10 @@ void __show_running_run_stats(void)
 
        free(rt);
        fio_sem_up(stat_sem);
+
+       return 0;
 }
 
-static bool status_interval_init;
-static struct timespec status_time;
 static bool status_file_disabled;
 
 #define FIO_STATUS_FILE                "fio-dump-status"
@@ -2398,16 +2657,6 @@ static int check_status_file(void)
 
 void check_for_running_stats(void)
 {
-       if (status_interval) {
-               if (!status_interval_init) {
-                       fio_gettime(&status_time, NULL);
-                       status_interval_init = true;
-               } else if (mtime_since_now(&status_time) >= status_interval) {
-                       show_running_run_stats();
-                       fio_gettime(&status_time, NULL);
-                       return;
-               }
-       }
        if (check_status_file()) {
                show_running_run_stats();
                return;
@@ -2439,27 +2688,25 @@ static inline void add_stat_sample(struct io_stat *is, unsigned long long data)
  */
 static struct io_logs *get_new_log(struct io_log *iolog)
 {
-       size_t new_size, new_samples;
+       size_t new_samples;
        struct io_logs *cur_log;
 
        /*
         * Cap the size at MAX_LOG_ENTRIES, so we don't keep doubling
         * forever
         */
-       if (!iolog->cur_log_max)
-               new_samples = DEF_LOG_ENTRIES;
-       else {
+       if (!iolog->cur_log_max) {
+               new_samples = iolog->td->o.log_entries;
+       else {
                new_samples = iolog->cur_log_max * 2;
                if (new_samples > MAX_LOG_ENTRIES)
                        new_samples = MAX_LOG_ENTRIES;
        }
 
-       new_size = new_samples * log_entry_sz(iolog);
-
        cur_log = smalloc(sizeof(*cur_log));
        if (cur_log) {
                INIT_FLIST_HEAD(&cur_log->list);
-               cur_log->log = malloc(new_size);
+               cur_log->log = calloc(new_samples, log_entry_sz(iolog));
                if (cur_log->log) {
                        cur_log->nr_samples = 0;
                        cur_log->max_samples = new_samples;
@@ -2548,6 +2795,14 @@ void regrow_logs(struct thread_data *td)
        td->flags &= ~TD_F_REGROW_LOGS;
 }
 
+void regrow_agg_logs(void)
+{
+       enum fio_ddir ddir;
+
+       for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++)
+               regrow_log(agg_io_log[ddir]);
+}
+
 static struct io_logs *get_cur_log(struct io_log *iolog)
 {
        struct io_logs *cur_log;
@@ -2582,7 +2837,8 @@ static struct io_logs *get_cur_log(struct io_log *iolog)
 
 static void __add_log_sample(struct io_log *iolog, union io_sample_data data,
                             enum fio_ddir ddir, unsigned long long bs,
-                            unsigned long t, uint64_t offset, uint8_t priority_bit)
+                            unsigned long t, uint64_t offset,
+                            unsigned int priority)
 {
        struct io_logs *cur_log;
 
@@ -2601,7 +2857,7 @@ static void __add_log_sample(struct io_log *iolog, union io_sample_data data,
                s->time = t + (iolog->td ? iolog->td->unix_epoch : 0);
                io_sample_set_ddir(iolog, s, ddir);
                s->bs = bs;
-               s->priority_bit = priority_bit;
+               s->priority = priority;
 
                if (iolog->log_offset) {
                        struct io_sample_offset *so = (void *) s;
@@ -2678,7 +2934,7 @@ void reset_io_stats(struct thread_data *td)
 }
 
 static void __add_stat_to_log(struct io_log *iolog, enum fio_ddir ddir,
-                             unsigned long elapsed, bool log_max, uint8_t priority_bit)
+                             unsigned long elapsed, bool log_max)
 {
        /*
         * Note an entry in the log. Use the mean from the logged samples,
@@ -2693,26 +2949,26 @@ static void __add_stat_to_log(struct io_log *iolog, enum fio_ddir ddir,
                else
                        data.val = iolog->avg_window[ddir].mean.u.f + 0.50;
 
-               __add_log_sample(iolog, data, ddir, 0, elapsed, 0, priority_bit);
+               __add_log_sample(iolog, data, ddir, 0, elapsed, 0, 0);
        }
 
        reset_io_stat(&iolog->avg_window[ddir]);
 }
 
 static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed,
-                            bool log_max, uint8_t priority_bit)
+                            bool log_max)
 {
        int ddir;
 
        for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++)
-               __add_stat_to_log(iolog, ddir, elapsed, log_max, priority_bit);
+               __add_stat_to_log(iolog, ddir, elapsed, log_max);
 }
 
 static unsigned long add_log_sample(struct thread_data *td,
                                    struct io_log *iolog,
                                    union io_sample_data data,
                                    enum fio_ddir ddir, unsigned long long bs,
-                                   uint64_t offset, uint8_t priority_bit)
+                                   uint64_t offset, unsigned int ioprio)
 {
        unsigned long elapsed, this_window;
 
@@ -2725,7 +2981,8 @@ static unsigned long add_log_sample(struct thread_data *td,
         * If no time averaging, just add the log sample.
         */
        if (!iolog->avg_msec) {
-               __add_log_sample(iolog, data, ddir, bs, elapsed, offset, priority_bit);
+               __add_log_sample(iolog, data, ddir, bs, elapsed, offset,
+                                ioprio);
                return 0;
        }
 
@@ -2749,9 +3006,10 @@ static unsigned long add_log_sample(struct thread_data *td,
                        return diff;
        }
 
-       _add_stat_to_log(iolog, elapsed, td->o.log_max != 0, priority_bit);
+       __add_stat_to_log(iolog, ddir, elapsed, td->o.log_max != 0);
+
+       iolog->avg_last[ddir] = elapsed - (elapsed % iolog->avg_msec);
 
-       iolog->avg_last[ddir] = elapsed - (this_window - iolog->avg_msec);
        return iolog->avg_msec;
 }
 
@@ -2762,19 +3020,19 @@ void finalize_logs(struct thread_data *td, bool unit_logs)
        elapsed = mtime_since_now(&td->epoch);
 
        if (td->clat_log && unit_logs)
-               _add_stat_to_log(td->clat_log, elapsed, td->o.log_max != 0, 0);
+               _add_stat_to_log(td->clat_log, elapsed, td->o.log_max != 0);
        if (td->slat_log && unit_logs)
-               _add_stat_to_log(td->slat_log, elapsed, td->o.log_max != 0, 0);
+               _add_stat_to_log(td->slat_log, elapsed, td->o.log_max != 0);
        if (td->lat_log && unit_logs)
-               _add_stat_to_log(td->lat_log, elapsed, td->o.log_max != 0, 0);
+               _add_stat_to_log(td->lat_log, elapsed, td->o.log_max != 0);
        if (td->bw_log && (unit_logs == per_unit_log(td->bw_log)))
-               _add_stat_to_log(td->bw_log, elapsed, td->o.log_max != 0, 0);
+               _add_stat_to_log(td->bw_log, elapsed, td->o.log_max != 0);
        if (td->iops_log && (unit_logs == per_unit_log(td->iops_log)))
-               _add_stat_to_log(td->iops_log, elapsed, td->o.log_max != 0, 0);
+               _add_stat_to_log(td->iops_log, elapsed, td->o.log_max != 0);
 }
 
-void add_agg_sample(union io_sample_data data, enum fio_ddir ddir, unsigned long long bs,
-                                       uint8_t priority_bit)
+void add_agg_sample(union io_sample_data data, enum fio_ddir ddir,
+                   unsigned long long bs)
 {
        struct io_log *iolog;
 
@@ -2782,7 +3040,7 @@ void add_agg_sample(union io_sample_data data, enum fio_ddir ddir, unsigned long
                return;
 
        iolog = agg_io_log[ddir];
-       __add_log_sample(iolog, data, ddir, bs, mtime_since_genesis(), 0, priority_bit);
+       __add_log_sample(iolog, data, ddir, bs, mtime_since_genesis(), 0, 0);
 }
 
 void add_sync_clat_sample(struct thread_stat *ts, unsigned long long nsec)
@@ -2794,8 +3052,10 @@ void add_sync_clat_sample(struct thread_stat *ts, unsigned long long nsec)
        add_stat_sample(&ts->sync_stat, nsec);
 }
 
-static void add_lat_percentile_sample_noprio(struct thread_stat *ts,
-                               unsigned long long nsec, enum fio_ddir ddir, enum fio_lat lat)
+static inline void add_lat_percentile_sample(struct thread_stat *ts,
+                                            unsigned long long nsec,
+                                            enum fio_ddir ddir,
+                                            enum fio_lat lat)
 {
        unsigned int idx = plat_val_to_idx(nsec);
        assert(idx < FIO_IO_U_PLAT_NR);
@@ -2803,15 +3063,14 @@ static void add_lat_percentile_sample_noprio(struct thread_stat *ts,
        ts->io_u_plat[lat][ddir][idx]++;
 }
 
-static void add_lat_percentile_sample(struct thread_stat *ts,
-                               unsigned long long nsec, enum fio_ddir ddir, uint8_t priority_bit,
-                               enum fio_lat lat)
+static inline void add_lat_percentile_prio_sample(struct thread_stat *ts,
+                                                 unsigned long long nsec,
+                                                 enum fio_ddir ddir,
+                                                 bool high_prio)
 {
        unsigned int idx = plat_val_to_idx(nsec);
 
-       add_lat_percentile_sample_noprio(ts, nsec, ddir, lat);
-
-       if (!priority_bit)
+       if (!high_prio)
                ts->io_u_plat_low_prio[ddir][idx]++;
        else
                ts->io_u_plat_high_prio[ddir][idx]++;
@@ -2819,7 +3078,7 @@ static void add_lat_percentile_sample(struct thread_stat *ts,
 
 void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
                     unsigned long long nsec, unsigned long long bs,
-                    uint64_t offset, uint8_t priority_bit)
+                    uint64_t offset, unsigned int ioprio, bool high_prio)
 {
        const bool needs_lock = td_async_processing(td);
        unsigned long elapsed, this_window;
@@ -2831,8 +3090,17 @@ void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
 
        add_stat_sample(&ts->clat_stat[ddir], nsec);
 
+       /*
+        * When lat_percentiles=1 (default 0), the reported high/low priority
+        * percentiles and stats are used for describing total latency values,
+        * even though the variable names themselves start with clat_.
+        *
+        * Because of the above definition, add a prio stat sample only when
+        * lat_percentiles=0. add_lat_sample() will add the prio stat sample
+        * when lat_percentiles=1.
+        */
        if (!ts->lat_percentiles) {
-               if (priority_bit)
+               if (high_prio)
                        add_stat_sample(&ts->clat_high_prio_stat[ddir], nsec);
                else
                        add_stat_sample(&ts->clat_low_prio_stat[ddir], nsec);
@@ -2840,13 +3108,18 @@ void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
 
        if (td->clat_log)
                add_log_sample(td, td->clat_log, sample_val(nsec), ddir, bs,
-                              offset, priority_bit);
+                              offset, ioprio);
 
        if (ts->clat_percentiles) {
-               if (ts->lat_percentiles)
-                       add_lat_percentile_sample_noprio(ts, nsec, ddir, FIO_CLAT);
-               else
-                       add_lat_percentile_sample(ts, nsec, ddir, priority_bit, FIO_CLAT);
+               /*
+                * Because of the above definition, add a prio lat percentile
+                * sample only when lat_percentiles=0. add_lat_sample() will add
+                * the prio lat percentile sample when lat_percentiles=1.
+                */
+               add_lat_percentile_sample(ts, nsec, ddir, FIO_CLAT);
+               if (!ts->lat_percentiles)
+                       add_lat_percentile_prio_sample(ts, nsec, ddir,
+                                                      high_prio);
        }
 
        if (iolog && iolog->hist_msec) {
@@ -2875,7 +3148,7 @@ void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
                                FIO_IO_U_PLAT_NR * sizeof(uint64_t));
                        flist_add(&dst->list, &hw->list);
                        __add_log_sample(iolog, sample_plat(dst), ddir, bs,
-                                               elapsed, offset, priority_bit);
+                                        elapsed, offset, ioprio);
 
                        /*
                         * Update the last time we recorded as being now, minus
@@ -2892,8 +3165,8 @@ void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
 }
 
 void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
-                       unsigned long long nsec, unsigned long long bs, uint64_t offset,
-                       uint8_t priority_bit)
+                    unsigned long long nsec, unsigned long long bs,
+                    uint64_t offset, unsigned int ioprio)
 {
        const bool needs_lock = td_async_processing(td);
        struct thread_stat *ts = &td->ts;
@@ -2907,11 +3180,11 @@ void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
        add_stat_sample(&ts->slat_stat[ddir], nsec);
 
        if (td->slat_log)
-               add_log_sample(td, td->slat_log, sample_val(nsec), ddir, bs, offset,
-                       priority_bit);
+               add_log_sample(td, td->slat_log, sample_val(nsec), ddir, bs,
+                              offset, ioprio);
 
        if (ts->slat_percentiles)
-               add_lat_percentile_sample_noprio(ts, nsec, ddir, FIO_SLAT);
+               add_lat_percentile_sample(ts, nsec, ddir, FIO_SLAT);
 
        if (needs_lock)
                __td_io_u_unlock(td);
@@ -2919,7 +3192,7 @@ void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
 
 void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
                    unsigned long long nsec, unsigned long long bs,
-                   uint64_t offset, uint8_t priority_bit)
+                   uint64_t offset, unsigned int ioprio, bool high_prio)
 {
        const bool needs_lock = td_async_processing(td);
        struct thread_stat *ts = &td->ts;
@@ -2934,11 +3207,22 @@ void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
 
        if (td->lat_log)
                add_log_sample(td, td->lat_log, sample_val(nsec), ddir, bs,
-                              offset, priority_bit);
+                              offset, ioprio);
 
+       /*
+        * When lat_percentiles=1 (default 0), the reported high/low priority
+        * percentiles and stats are used for describing total latency values,
+        * even though the variable names themselves start with clat_.
+        *
+        * Because of the above definition, add a prio stat and prio lat
+        * percentile sample only when lat_percentiles=1. add_clat_sample() will
+        * add the prio stat and prio lat percentile sample when
+        * lat_percentiles=0.
+        */
        if (ts->lat_percentiles) {
-               add_lat_percentile_sample(ts, nsec, ddir, priority_bit, FIO_LAT);
-               if (priority_bit)
+               add_lat_percentile_sample(ts, nsec, ddir, FIO_LAT);
+               add_lat_percentile_prio_sample(ts, nsec, ddir, high_prio);
+               if (high_prio)
                        add_stat_sample(&ts->clat_high_prio_stat[ddir], nsec);
                else
                        add_stat_sample(&ts->clat_low_prio_stat[ddir], nsec);
@@ -2967,7 +3251,7 @@ void add_bw_sample(struct thread_data *td, struct io_u *io_u,
 
        if (td->bw_log)
                add_log_sample(td, td->bw_log, sample_val(rate), io_u->ddir,
-                              bytes, io_u->offset, io_u_is_prio(io_u));
+                              bytes, io_u->offset, io_u->ioprio);
 
        td->stat_io_bytes[io_u->ddir] = td->this_io_bytes[io_u->ddir];
 
@@ -2989,7 +3273,7 @@ static int __add_samples(struct thread_data *td, struct timespec *parent_tv,
        next_log = avg_time;
 
        spent = mtime_since(parent_tv, t);
-       if (spent < avg_time && avg_time - spent >= LOG_MSEC_SLACK)
+       if (spent < avg_time && avg_time - spent > LOG_MSEC_SLACK)
                return avg_time - spent;
 
        if (needs_lock)
@@ -3021,7 +3305,8 @@ static int __add_samples(struct thread_data *td, struct timespec *parent_tv,
                        if (td->o.min_bs[ddir] == td->o.max_bs[ddir])
                                bs = td->o.min_bs[ddir];
 
-                       next = add_log_sample(td, log, sample_val(rate), ddir, bs, 0, 0);
+                       next = add_log_sample(td, log, sample_val(rate), ddir,
+                                             bs, 0, 0);
                        next_log = min(next_log, next);
                }
 
@@ -3061,7 +3346,7 @@ void add_iops_sample(struct thread_data *td, struct io_u *io_u,
 
        if (td->iops_log)
                add_log_sample(td, td->iops_log, sample_val(1), io_u->ddir,
-                              bytes, io_u->offset, io_u_is_prio(io_u));
+                              bytes, io_u->offset, io_u->ioprio);
 
        td->stat_io_blocks[io_u->ddir] = td->this_io_blocks[io_u->ddir];
 
@@ -3082,13 +3367,16 @@ static int add_iops_samples(struct thread_data *td, struct timespec *t)
 int calc_log_samples(void)
 {
        struct thread_data *td;
-       unsigned int next = ~0U, tmp;
+       unsigned int next = ~0U, tmp = 0, next_mod = 0, log_avg_msec_min = -1U;
        struct timespec now;
        int i;
+       long elapsed_time = 0;
 
        fio_gettime(&now, NULL);
 
        for_each_td(td, i) {
+               elapsed_time = mtime_since_now(&td->epoch);
+
                if (!td->o.stats)
                        continue;
                if (in_ramp_time(td) ||
@@ -3099,17 +3387,34 @@ int calc_log_samples(void)
                if (!td->bw_log ||
                        (td->bw_log && !per_unit_log(td->bw_log))) {
                        tmp = add_bw_samples(td, &now);
-                       if (tmp < next)
-                               next = tmp;
+
+                       if (td->bw_log)
+                               log_avg_msec_min = min(log_avg_msec_min, (unsigned int)td->bw_log->avg_msec);
                }
                if (!td->iops_log ||
                        (td->iops_log && !per_unit_log(td->iops_log))) {
                        tmp = add_iops_samples(td, &now);
-                       if (tmp < next)
-                               next = tmp;
+
+                       if (td->iops_log)
+                               log_avg_msec_min = min(log_avg_msec_min, (unsigned int)td->iops_log->avg_msec);
                }
+
+               if (tmp < next)
+                       next = tmp;
        }
 
+       /* if log_avg_msec_min has not been changed, set it to 0 */
+       if (log_avg_msec_min == -1U)
+               log_avg_msec_min = 0;
+
+       if (log_avg_msec_min == 0)
+               next_mod = elapsed_time;
+       else
+               next_mod = elapsed_time % log_avg_msec_min;
+
+       /* correction to keep the time on the log avg msec boundary */
+       next = min(next, (log_avg_msec_min - next_mod));
+
        return next == ~0U ? 0 : next;
 }
 
@@ -3146,3 +3451,4 @@ uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
        assert(idx < td->ts.nr_block_infos);
        return info;
 }
+