Break double loop on end-of-clat percentiles
[fio.git] / stat.c
diff --git a/stat.c b/stat.c
index 7bcae310f8d41bb388abc1af6b773b6125ea0492..83ffd0690afca59cc6d1ff266bd717ff70d9395e 100644 (file)
--- a/stat.c
+++ b/stat.c
@@ -121,13 +121,17 @@ static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
                                  fio_fp64_t *plist)
 {
        unsigned long sum = 0;
-       unsigned int len, i, j = 0;
-       int is_last = 0;
+       unsigned int len, i, j = 0, minv = -1U, maxv = 0;
+       unsigned int *ovals = NULL, oval_len = 0;
+       int is_last, scale_down;
 
        len = 0;
        while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
                len++;
 
+       if (!len)
+               return;
+
        /*
         * Sort the percentile list. Note that it may already be sorted if
         * we are using the default values, but since it's a short list this
@@ -136,31 +140,75 @@ static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
        if (len > 1)
                qsort((void*)plist, len, sizeof(plist[0]), double_cmp);
 
-       log_info("    clat percentiles (usec) :");
-
+       /*
+        * Calculate bucket values, note down max and min values
+        */
+       is_last = 0;
        for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
                sum += io_u_plat[i];
                while (sum >= (plist[j].u.f / 100.0 * nr)) {
                        assert(plist[j].u.f <= 100.0);
 
-                       /* for formatting */
-                       if (j != 0 && (j % 4) == 0)
-                               log_info("                             ");
-
-                       /* end of the list */
-                       is_last = (j == len - 1);
+                       if (j == oval_len) {
+                               oval_len += 100;
+                               ovals = realloc(ovals, oval_len * sizeof(unsigned int));
+                       }
 
-                       log_info(" %2.2fth=%u%c", plist[j], plat_idx_to_val(i),
-                                (is_last? '\n' : ','));
+                       ovals[j] = plat_idx_to_val(i);
+                       if (ovals[j] < minv)
+                               minv = ovals[j];
+                       if (ovals[j] > maxv)
+                               maxv = ovals[j];
 
+                       is_last = (j == len - 1);
                        if (is_last)
                                break;
 
-                       if (j % 4 == 3) /* for formatting */
-                               log_info("\n");
                        j++;
                }
        }
+
+       /*
+        * We default to usecs, but if the value range is such that we
+        * should scale down to msecs, do that.
+        */
+       if (minv > 2000 && maxv > 99999) {
+               scale_down = 1;
+               log_info("    clat percentiles (msec):\n     |");
+       } else {
+               scale_down = 0;
+               log_info("    clat percentiles (usec):\n     |");
+       }
+
+       for (j = 0; j < len; j++) {
+               char fbuf[8];
+
+               /* for formatting */
+               if (j != 0 && (j % 4) == 0)
+                       log_info("     |");
+
+               /* end of the list */
+               is_last = (j == len - 1);
+
+               if (plist[j].u.f < 10.0)
+                       sprintf(fbuf, " %2.2f", plist[j].u.f);
+               else
+                       sprintf(fbuf, "%2.2f", plist[j].u.f);
+
+               if (scale_down)
+                       ovals[j] = (ovals[j] + 999) / 1000;
+
+               log_info(" %sth=[%5u]%c", fbuf, ovals[j], is_last ? '\n' : ',');
+
+               if (is_last)
+                       break;
+
+               if (j % 4 == 3) /* for formatting */
+                       log_info("\n");
+       }
+
+       if (ovals)
+               free(ovals);
 }
 
 static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
@@ -191,7 +239,7 @@ void show_group_stats(struct group_run_stats *rs)
        const char *ddir_str[] = { "   READ", "  WRITE" };
        int i;
 
-       log_info("\nRun status group %d (all jobs):\n", rs->groupid);
+       log_info("Run status group %d (all jobs):\n", rs->groupid);
 
        for (i = 0; i <= DDIR_WRITE; i++) {
                const int i2p = is_power_of_2(rs->kb_base);
@@ -372,7 +420,7 @@ static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
                double p_of_agg;
 
                p_of_agg = mean * 100 / (double) rs->agg[ddir];
-               log_info("    bw (KB/s) : min=%5lu, max=%5lu, per=%3.2f%%,"
+               log_info("     bw (KB/s) : min=%5lu, max=%5lu, per=%3.2f%%,"
                         " avg=%5.02f, stdev=%5.02f\n", min, max, p_of_agg,
                                                        mean, dev);
        }
@@ -642,23 +690,109 @@ static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr)
        dst->S.u.f = S;
 }
 
+void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
+{
+       int i;
+
+       for (i = 0; i < 2; i++) {
+               if (dst->max_run[i] < src->max_run[i])
+                       dst->max_run[i] = src->max_run[i];
+               if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
+                       dst->min_run[i] = src->min_run[i];
+               if (dst->max_bw[i] < src->max_bw[i])
+                       dst->max_bw[i] = src->max_bw[i];
+               if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
+                       dst->min_bw[i] = src->min_bw[i];
+
+               dst->io_kb[i] += src->io_kb[i];
+               dst->agg[i] += src->agg[i];
+       }
+
+}
+
+void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, int nr)
+{
+       int l, k;
+
+       for (l = 0; l <= DDIR_WRITE; l++) {
+               sum_stat(&dst->clat_stat[l], &src->clat_stat[l], nr);
+               sum_stat(&dst->slat_stat[l], &src->slat_stat[l], nr);
+               sum_stat(&dst->lat_stat[l], &src->lat_stat[l], nr);
+               sum_stat(&dst->bw_stat[l], &src->bw_stat[l], nr);
+
+               dst->io_bytes[l] += src->io_bytes[l];
+
+               if (dst->runtime[l] < src->runtime[l])
+                       dst->runtime[l] = src->runtime[l];
+       }
+
+       dst->usr_time += src->usr_time;
+       dst->sys_time += src->sys_time;
+       dst->ctx += src->ctx;
+       dst->majf += src->majf;
+       dst->minf += src->minf;
+
+       for (k = 0; k < FIO_IO_U_MAP_NR; k++)
+               dst->io_u_map[k] += src->io_u_map[k];
+       for (k = 0; k < FIO_IO_U_MAP_NR; k++)
+               dst->io_u_submit[k] += src->io_u_submit[k];
+       for (k = 0; k < FIO_IO_U_MAP_NR; k++)
+               dst->io_u_complete[k] += src->io_u_complete[k];
+       for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
+               dst->io_u_lat_u[k] += src->io_u_lat_u[k];
+       for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
+               dst->io_u_lat_m[k] += src->io_u_lat_m[k];
+
+       for (k = 0; k <= 2; k++) {
+               dst->total_io_u[k] += src->total_io_u[k];
+               dst->short_io_u[k] += src->short_io_u[k];
+       }
+
+       for (k = 0; k <= DDIR_WRITE; k++) {
+               int m;
+               for (m = 0; m < FIO_IO_U_PLAT_NR; m++)
+                       dst->io_u_plat[k][m] += src->io_u_plat[k][m];
+       }
+
+       dst->total_run_time += src->total_run_time;
+       dst->total_submit += src->total_submit;
+       dst->total_complete += src->total_complete;
+}
+
+void init_group_run_stat(struct group_run_stats *gs)
+{
+       memset(gs, 0, sizeof(*gs));
+       gs->min_bw[0] = gs->min_run[0] = ~0UL;
+       gs->min_bw[1] = gs->min_run[1] = ~0UL;
+}
+
+void init_thread_stat(struct thread_stat *ts)
+{
+       int j;
+
+       memset(ts, 0, sizeof(*ts));
+
+       for (j = 0; j <= DDIR_WRITE; 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->groupid = -1;
+}
+
 void show_run_stats(void)
 {
        struct group_run_stats *runstats, *rs;
        struct thread_data *td;
        struct thread_stat *threadstats, *ts;
-       int i, j, k, l, nr_ts, last_ts, idx;
+       int i, j, nr_ts, last_ts, idx;
        int kb_base_warned = 0;
 
        runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
 
-       for (i = 0; i < groupid + 1; i++) {
-               rs = &runstats[i];
-
-               memset(rs, 0, sizeof(*rs));
-               rs->min_bw[0] = rs->min_run[0] = ~0UL;
-               rs->min_bw[1] = rs->min_run[1] = ~0UL;
-       }
+       for (i = 0; i < groupid + 1; i++)
+               init_group_run_stat(&runstats[i]);
 
        /*
         * find out how many threads stats we need. if group reporting isn't
@@ -680,18 +814,8 @@ void show_run_stats(void)
 
        threadstats = malloc(nr_ts * sizeof(struct thread_stat));
 
-       for (i = 0; i < nr_ts; i++) {
-               ts = &threadstats[i];
-
-               memset(ts, 0, sizeof(*ts));
-               for (j = 0; j <= DDIR_WRITE; 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->groupid = -1;
-       }
+       for (i = 0; i < nr_ts; i++)
+               init_thread_stat(&threadstats[i]);
 
        j = 0;
        last_ts = -1;
@@ -755,50 +879,7 @@ void show_run_stats(void)
                        }
                }
 
-               for (l = 0; l <= DDIR_WRITE; l++) {
-                       sum_stat(&ts->clat_stat[l], &td->ts.clat_stat[l], idx);
-                       sum_stat(&ts->slat_stat[l], &td->ts.slat_stat[l], idx);
-                       sum_stat(&ts->lat_stat[l], &td->ts.lat_stat[l], idx);
-                       sum_stat(&ts->bw_stat[l], &td->ts.bw_stat[l], idx);
-
-                       ts->io_bytes[l] += td->ts.io_bytes[l];
-
-                       if (ts->runtime[l] < td->ts.runtime[l])
-                               ts->runtime[l] = td->ts.runtime[l];
-               }
-
-               ts->usr_time += td->ts.usr_time;
-               ts->sys_time += td->ts.sys_time;
-               ts->ctx += td->ts.ctx;
-               ts->majf += td->ts.majf;
-               ts->minf += td->ts.minf;
-
-               for (k = 0; k < FIO_IO_U_MAP_NR; k++)
-                       ts->io_u_map[k] += td->ts.io_u_map[k];
-               for (k = 0; k < FIO_IO_U_MAP_NR; k++)
-                       ts->io_u_submit[k] += td->ts.io_u_submit[k];
-               for (k = 0; k < FIO_IO_U_MAP_NR; k++)
-                       ts->io_u_complete[k] += td->ts.io_u_complete[k];
-               for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
-                       ts->io_u_lat_u[k] += td->ts.io_u_lat_u[k];
-               for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
-                       ts->io_u_lat_m[k] += td->ts.io_u_lat_m[k];
-
-
-               for (k = 0; k <= 2; k++) {
-                       ts->total_io_u[k] += td->ts.total_io_u[k];
-                       ts->short_io_u[k] += td->ts.short_io_u[k];
-               }
-
-               for (k = 0; k <= DDIR_WRITE; k++) {
-                       int m;
-                       for (m = 0; m < FIO_IO_U_PLAT_NR; m++)
-                               ts->io_u_plat[k][m] += td->ts.io_u_plat[k][m];
-               }
-
-               ts->total_run_time += td->ts.total_run_time;
-               ts->total_submit += td->ts.total_submit;
-               ts->total_complete += td->ts.total_complete;
+               sum_thread_stats(ts, &td->ts, idx);
        }
 
        for (i = 0; i < nr_ts; i++) {
@@ -874,7 +955,12 @@ void show_run_stats(void)
                                show_group_stats(rs);
                }
 
-               show_disk_util();
+               if (is_backend)
+                       fio_server_send_du();
+               else
+                       show_disk_util();
+
+               free_disk_util();
        }
 
        free(runstats);
@@ -1004,7 +1090,7 @@ void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
        if (!ddir_rw(ddir))
                return;
 
-       spent = mtime_since(&td->stat_sample_time[ddir], t);
+       spent = mtime_since(&td->bw_sample_time, t);
        if (spent < td->o.bw_avg_time)
                return;
 
@@ -1015,6 +1101,32 @@ void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
        if (td->bw_log)
                add_log_sample(td, td->bw_log, rate, ddir, bs);
 
-       fio_gettime(&td->stat_sample_time[ddir], NULL);
+       fio_gettime(&td->bw_sample_time, NULL);
        td->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
 }
+
+void add_iops_sample(struct thread_data *td, enum fio_ddir ddir,
+                    struct timeval *t)
+{
+       struct thread_stat *ts = &td->ts;
+       unsigned long spent, iops;
+
+       if (!ddir_rw(ddir))
+               return;
+
+       spent = mtime_since(&td->iops_sample_time, t);
+       if (spent < td->o.iops_avg_time)
+               return;
+
+       iops = ((td->this_io_blocks[ddir] - td->stat_io_blocks[ddir]) * 1000) / spent;
+
+       add_stat_sample(&ts->iops_stat[ddir], iops);
+
+       if (td->iops_log) {
+               assert(iops);
+               add_log_sample(td, td->iops_log, iops, ddir, 0);
+       }
+
+       fio_gettime(&td->iops_sample_time, NULL);
+       td->stat_io_blocks[ddir] = td->this_io_blocks[ddir];
+}