Wire up pmemblk
[fio.git] / stat.c
1 #include <stdio.h>
2 #include <string.h>
3 #include <sys/time.h>
4 #include <sys/types.h>
5 #include <sys/stat.h>
6 #include <dirent.h>
7 #include <libgen.h>
8 #include <math.h>
9
10 #include "fio.h"
11 #include "diskutil.h"
12 #include "lib/ieee754.h"
13 #include "json.h"
14 #include "lib/getrusage.h"
15 #include "idletime.h"
16 #include "lib/pow2.h"
17 #include "lib/output_buffer.h"
18
19 struct fio_mutex *stat_mutex;
20
21 void clear_rusage_stat(struct thread_data *td)
22 {
23         struct thread_stat *ts = &td->ts;
24
25         fio_getrusage(&td->ru_start);
26         ts->usr_time = ts->sys_time = 0;
27         ts->ctx = 0;
28         ts->minf = ts->majf = 0;
29 }
30
31 void update_rusage_stat(struct thread_data *td)
32 {
33         struct thread_stat *ts = &td->ts;
34
35         fio_getrusage(&td->ru_end);
36         ts->usr_time += mtime_since(&td->ru_start.ru_utime,
37                                         &td->ru_end.ru_utime);
38         ts->sys_time += mtime_since(&td->ru_start.ru_stime,
39                                         &td->ru_end.ru_stime);
40         ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw
41                         - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw);
42         ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt;
43         ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt;
44
45         memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end));
46 }
47
48 /*
49  * Given a latency, return the index of the corresponding bucket in
50  * the structure tracking percentiles.
51  *
52  * (1) find the group (and error bits) that the value (latency)
53  * belongs to by looking at its MSB. (2) find the bucket number in the
54  * group by looking at the index bits.
55  *
56  */
57 static unsigned int plat_val_to_idx(unsigned int val)
58 {
59         unsigned int msb, error_bits, base, offset, idx;
60
61         /* Find MSB starting from bit 0 */
62         if (val == 0)
63                 msb = 0;
64         else
65                 msb = (sizeof(val)*8) - __builtin_clz(val) - 1;
66
67         /*
68          * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
69          * all bits of the sample as index
70          */
71         if (msb <= FIO_IO_U_PLAT_BITS)
72                 return val;
73
74         /* Compute the number of error bits to discard*/
75         error_bits = msb - FIO_IO_U_PLAT_BITS;
76
77         /* Compute the number of buckets before the group */
78         base = (error_bits + 1) << FIO_IO_U_PLAT_BITS;
79
80         /*
81          * Discard the error bits and apply the mask to find the
82          * index for the buckets in the group
83          */
84         offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits);
85
86         /* Make sure the index does not exceed (array size - 1) */
87         idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1) ?
88                 (base + offset) : (FIO_IO_U_PLAT_NR - 1);
89
90         return idx;
91 }
92
93 /*
94  * Convert the given index of the bucket array to the value
95  * represented by the bucket
96  */
97 static unsigned int plat_idx_to_val(unsigned int idx)
98 {
99         unsigned int error_bits, k, base;
100
101         assert(idx < FIO_IO_U_PLAT_NR);
102
103         /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use
104          * all bits of the sample as index */
105         if (idx < (FIO_IO_U_PLAT_VAL << 1))
106                 return idx;
107
108         /* Find the group and compute the minimum value of that group */
109         error_bits = (idx >> FIO_IO_U_PLAT_BITS) - 1;
110         base = 1 << (error_bits + FIO_IO_U_PLAT_BITS);
111
112         /* Find its bucket number of the group */
113         k = idx % FIO_IO_U_PLAT_VAL;
114
115         /* Return the mean of the range of the bucket */
116         return base + ((k + 0.5) * (1 << error_bits));
117 }
118
119 static int double_cmp(const void *a, const void *b)
120 {
121         const fio_fp64_t fa = *(const fio_fp64_t *) a;
122         const fio_fp64_t fb = *(const fio_fp64_t *) b;
123         int cmp = 0;
124
125         if (fa.u.f > fb.u.f)
126                 cmp = 1;
127         else if (fa.u.f < fb.u.f)
128                 cmp = -1;
129
130         return cmp;
131 }
132
133 unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
134                                    fio_fp64_t *plist, unsigned int **output,
135                                    unsigned int *maxv, unsigned int *minv)
136 {
137         unsigned long sum = 0;
138         unsigned int len, i, j = 0;
139         unsigned int oval_len = 0;
140         unsigned int *ovals = NULL;
141         int is_last;
142
143         *minv = -1U;
144         *maxv = 0;
145
146         len = 0;
147         while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
148                 len++;
149
150         if (!len)
151                 return 0;
152
153         /*
154          * Sort the percentile list. Note that it may already be sorted if
155          * we are using the default values, but since it's a short list this
156          * isn't a worry. Also note that this does not work for NaN values.
157          */
158         if (len > 1)
159                 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
160
161         /*
162          * Calculate bucket values, note down max and min values
163          */
164         is_last = 0;
165         for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) {
166                 sum += io_u_plat[i];
167                 while (sum >= (plist[j].u.f / 100.0 * nr)) {
168                         assert(plist[j].u.f <= 100.0);
169
170                         if (j == oval_len) {
171                                 oval_len += 100;
172                                 ovals = realloc(ovals, oval_len * sizeof(unsigned int));
173                         }
174
175                         ovals[j] = plat_idx_to_val(i);
176                         if (ovals[j] < *minv)
177                                 *minv = ovals[j];
178                         if (ovals[j] > *maxv)
179                                 *maxv = ovals[j];
180
181                         is_last = (j == len - 1);
182                         if (is_last)
183                                 break;
184
185                         j++;
186                 }
187         }
188
189         *output = ovals;
190         return len;
191 }
192
193 /*
194  * Find and display the p-th percentile of clat
195  */
196 static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr,
197                                   fio_fp64_t *plist, unsigned int precision,
198                                   struct buf_output *out)
199 {
200         unsigned int len, j = 0, minv, maxv;
201         unsigned int *ovals;
202         int is_last, per_line, scale_down;
203         char fmt[32];
204
205         len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv);
206         if (!len)
207                 goto out;
208
209         /*
210          * We default to usecs, but if the value range is such that we
211          * should scale down to msecs, do that.
212          */
213         if (minv > 2000 && maxv > 99999) {
214                 scale_down = 1;
215                 log_buf(out, "    clat percentiles (msec):\n     |");
216         } else {
217                 scale_down = 0;
218                 log_buf(out, "    clat percentiles (usec):\n     |");
219         }
220
221         snprintf(fmt, sizeof(fmt), "%%1.%uf", precision);
222         per_line = (80 - 7) / (precision + 14);
223
224         for (j = 0; j < len; j++) {
225                 char fbuf[16], *ptr = fbuf;
226
227                 /* for formatting */
228                 if (j != 0 && (j % per_line) == 0)
229                         log_buf(out, "     |");
230
231                 /* end of the list */
232                 is_last = (j == len - 1);
233
234                 if (plist[j].u.f < 10.0)
235                         ptr += sprintf(fbuf, " ");
236
237                 snprintf(ptr, sizeof(fbuf), fmt, plist[j].u.f);
238
239                 if (scale_down)
240                         ovals[j] = (ovals[j] + 999) / 1000;
241
242                 log_buf(out, " %sth=[%5u]%c", fbuf, ovals[j], is_last ? '\n' : ',');
243
244                 if (is_last)
245                         break;
246
247                 if ((j % per_line) == per_line - 1)     /* for formatting */
248                         log_buf(out, "\n");
249         }
250
251 out:
252         if (ovals)
253                 free(ovals);
254 }
255
256 int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max,
257              double *mean, double *dev)
258 {
259         double n = (double) is->samples;
260
261         if (n == 0)
262                 return 0;
263
264         *min = is->min_val;
265         *max = is->max_val;
266         *mean = is->mean.u.f;
267
268         if (n > 1.0)
269                 *dev = sqrt(is->S.u.f / (n - 1.0));
270         else
271                 *dev = 0;
272
273         return 1;
274 }
275
276 void show_group_stats(struct group_run_stats *rs, struct buf_output *out)
277 {
278         char *p1, *p2, *p3, *p4;
279         const char *str[] = { "   READ", "  WRITE" , "   TRIM"};
280         int i;
281
282         log_buf(out, "\nRun status group %d (all jobs):\n", rs->groupid);
283
284         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
285                 const int i2p = is_power_of_2(rs->kb_base);
286
287                 if (!rs->max_run[i])
288                         continue;
289
290                 p1 = num2str(rs->io_kb[i], 6, rs->kb_base, i2p, 8);
291                 p2 = num2str(rs->agg[i], 6, rs->kb_base, i2p, rs->unit_base);
292                 p3 = num2str(rs->min_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
293                 p4 = num2str(rs->max_bw[i], 6, rs->kb_base, i2p, rs->unit_base);
294
295                 log_buf(out, "%s: io=%s, aggrb=%s/s, minb=%s/s, maxb=%s/s,"
296                          " mint=%llumsec, maxt=%llumsec\n",
297                                 rs->unified_rw_rep ? "  MIXED" : str[i],
298                                 p1, p2, p3, p4,
299                                 (unsigned long long) rs->min_run[i],
300                                 (unsigned long long) rs->max_run[i]);
301
302                 free(p1);
303                 free(p2);
304                 free(p3);
305                 free(p4);
306         }
307 }
308
309 void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist)
310 {
311         int i;
312
313         /*
314          * Do depth distribution calculations
315          */
316         for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
317                 if (total) {
318                         io_u_dist[i] = (double) map[i] / (double) total;
319                         io_u_dist[i] *= 100.0;
320                         if (io_u_dist[i] < 0.1 && map[i])
321                                 io_u_dist[i] = 0.1;
322                 } else
323                         io_u_dist[i] = 0.0;
324         }
325 }
326
327 static void stat_calc_lat(struct thread_stat *ts, double *dst,
328                           unsigned int *src, int nr)
329 {
330         unsigned long total = ddir_rw_sum(ts->total_io_u);
331         int i;
332
333         /*
334          * Do latency distribution calculations
335          */
336         for (i = 0; i < nr; i++) {
337                 if (total) {
338                         dst[i] = (double) src[i] / (double) total;
339                         dst[i] *= 100.0;
340                         if (dst[i] < 0.01 && src[i])
341                                 dst[i] = 0.01;
342                 } else
343                         dst[i] = 0.0;
344         }
345 }
346
347 void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat)
348 {
349         stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR);
350 }
351
352 void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat)
353 {
354         stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR);
355 }
356
357 static void display_lat(const char *name, unsigned long min, unsigned long max,
358                         double mean, double dev, struct buf_output *out)
359 {
360         const char *base = "(usec)";
361         char *minp, *maxp;
362
363         if (!usec_to_msec(&min, &max, &mean, &dev))
364                 base = "(msec)";
365
366         minp = num2str(min, 6, 1, 0, 0);
367         maxp = num2str(max, 6, 1, 0, 0);
368
369         log_buf(out, "    %s %s: min=%s, max=%s, avg=%5.02f,"
370                  " stdev=%5.02f\n", name, base, minp, maxp, mean, dev);
371
372         free(minp);
373         free(maxp);
374 }
375
376 static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts,
377                              int ddir, struct buf_output *out)
378 {
379         const char *str[] = { "read ", "write", "trim" };
380         unsigned long min, max, runt;
381         unsigned long long bw, iops;
382         double mean, dev;
383         char *io_p, *bw_p, *iops_p;
384         int i2p;
385
386         assert(ddir_rw(ddir));
387
388         if (!ts->runtime[ddir])
389                 return;
390
391         i2p = is_power_of_2(rs->kb_base);
392         runt = ts->runtime[ddir];
393
394         bw = (1000 * ts->io_bytes[ddir]) / runt;
395         io_p = num2str(ts->io_bytes[ddir], 6, 1, i2p, 8);
396         bw_p = num2str(bw, 6, 1, i2p, ts->unit_base);
397
398         iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt;
399         iops_p = num2str(iops, 6, 1, 0, 0);
400
401         log_buf(out, "  %s: io=%s, bw=%s/s, iops=%s, runt=%6llumsec\n",
402                                 rs->unified_rw_rep ? "mixed" : str[ddir],
403                                 io_p, bw_p, iops_p,
404                                 (unsigned long long) ts->runtime[ddir]);
405
406         free(io_p);
407         free(bw_p);
408         free(iops_p);
409
410         if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
411                 display_lat("slat", min, max, mean, dev, out);
412         if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
413                 display_lat("clat", min, max, mean, dev, out);
414         if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
415                 display_lat(" lat", min, max, mean, dev, out);
416
417         if (ts->clat_percentiles) {
418                 show_clat_percentiles(ts->io_u_plat[ddir],
419                                         ts->clat_stat[ddir].samples,
420                                         ts->percentile_list,
421                                         ts->percentile_precision, out);
422         }
423         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
424                 double p_of_agg = 100.0, fkb_base = (double)rs->kb_base;
425                 const char *bw_str = (rs->unit_base == 1 ? "Kbit" : "KB");
426
427                 if (rs->unit_base == 1) {
428                         min *= 8.0;
429                         max *= 8.0;
430                         mean *= 8.0;
431                         dev *= 8.0;
432                 }
433
434                 if (rs->agg[ddir]) {
435                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
436                         if (p_of_agg > 100.0)
437                                 p_of_agg = 100.0;
438                 }
439
440                 if (mean > fkb_base * fkb_base) {
441                         min /= fkb_base;
442                         max /= fkb_base;
443                         mean /= fkb_base;
444                         dev /= fkb_base;
445                         bw_str = (rs->unit_base == 1 ? "Mbit" : "MB");
446                 }
447
448                 log_buf(out, "    bw (%-4s/s): min=%5lu, max=%5lu, per=%3.2f%%,"
449                          " avg=%5.02f, stdev=%5.02f\n", bw_str, min, max,
450                                                         p_of_agg, mean, dev);
451         }
452 }
453
454 static int show_lat(double *io_u_lat, int nr, const char **ranges,
455                     const char *msg, struct buf_output *out)
456 {
457         int new_line = 1, i, line = 0, shown = 0;
458
459         for (i = 0; i < nr; i++) {
460                 if (io_u_lat[i] <= 0.0)
461                         continue;
462                 shown = 1;
463                 if (new_line) {
464                         if (line)
465                                 log_buf(out, "\n");
466                         log_buf(out, "    lat (%s) : ", msg);
467                         new_line = 0;
468                         line = 0;
469                 }
470                 if (line)
471                         log_buf(out, ", ");
472                 log_buf(out, "%s%3.2f%%", ranges[i], io_u_lat[i]);
473                 line++;
474                 if (line == 5)
475                         new_line = 1;
476         }
477
478         if (shown)
479                 log_buf(out, "\n");
480
481         return shown;
482 }
483
484 static void show_lat_u(double *io_u_lat_u, struct buf_output *out)
485 {
486         const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
487                                  "250=", "500=", "750=", "1000=", };
488
489         show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec", out);
490 }
491
492 static void show_lat_m(double *io_u_lat_m, struct buf_output *out)
493 {
494         const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=",
495                                  "250=", "500=", "750=", "1000=", "2000=",
496                                  ">=2000=", };
497
498         show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec", out);
499 }
500
501 static void show_latencies(struct thread_stat *ts, struct buf_output *out)
502 {
503         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
504         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
505
506         stat_calc_lat_u(ts, io_u_lat_u);
507         stat_calc_lat_m(ts, io_u_lat_m);
508
509         show_lat_u(io_u_lat_u, out);
510         show_lat_m(io_u_lat_m, out);
511 }
512
513 static int block_state_category(int block_state)
514 {
515         switch (block_state) {
516         case BLOCK_STATE_UNINIT:
517                 return 0;
518         case BLOCK_STATE_TRIMMED:
519         case BLOCK_STATE_WRITTEN:
520                 return 1;
521         case BLOCK_STATE_WRITE_FAILURE:
522         case BLOCK_STATE_TRIM_FAILURE:
523                 return 2;
524         default:
525                 /* Silence compile warning on some BSDs and have a return */
526                 assert(0);
527                 return -1;
528         }
529 }
530
531 static int compare_block_infos(const void *bs1, const void *bs2)
532 {
533         uint32_t block1 = *(uint32_t *)bs1;
534         uint32_t block2 = *(uint32_t *)bs2;
535         int state1 = BLOCK_INFO_STATE(block1);
536         int state2 = BLOCK_INFO_STATE(block2);
537         int bscat1 = block_state_category(state1);
538         int bscat2 = block_state_category(state2);
539         int cycles1 = BLOCK_INFO_TRIMS(block1);
540         int cycles2 = BLOCK_INFO_TRIMS(block2);
541
542         if (bscat1 < bscat2)
543                 return -1;
544         if (bscat1 > bscat2)
545                 return 1;
546
547         if (cycles1 < cycles2)
548                 return -1;
549         if (cycles1 > cycles2)
550                 return 1;
551
552         if (state1 < state2)
553                 return -1;
554         if (state1 > state2)
555                 return 1;
556
557         assert(block1 == block2);
558         return 0;
559 }
560
561 static int calc_block_percentiles(int nr_block_infos, uint32_t *block_infos,
562                                   fio_fp64_t *plist, unsigned int **percentiles,
563                                   unsigned int *types)
564 {
565         int len = 0;
566         int i, nr_uninit;
567
568         qsort(block_infos, nr_block_infos, sizeof(uint32_t), compare_block_infos);
569
570         while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0)
571                 len++;
572
573         if (!len)
574                 return 0;
575
576         /*
577          * Sort the percentile list. Note that it may already be sorted if
578          * we are using the default values, but since it's a short list this
579          * isn't a worry. Also note that this does not work for NaN values.
580          */
581         if (len > 1)
582                 qsort((void *)plist, len, sizeof(plist[0]), double_cmp);
583
584         nr_uninit = 0;
585         /* Start only after the uninit entries end */
586         for (nr_uninit = 0;
587              nr_uninit < nr_block_infos
588                 && BLOCK_INFO_STATE(block_infos[nr_uninit]) == BLOCK_STATE_UNINIT;
589              nr_uninit ++)
590                 ;
591
592         if (nr_uninit == nr_block_infos)
593                 return 0;
594
595         *percentiles = calloc(len, sizeof(**percentiles));
596
597         for (i = 0; i < len; i++) {
598                 int idx = (plist[i].u.f * (nr_block_infos - nr_uninit) / 100)
599                                 + nr_uninit;
600                 (*percentiles)[i] = BLOCK_INFO_TRIMS(block_infos[idx]);
601         }
602
603         memset(types, 0, sizeof(*types) * BLOCK_STATE_COUNT);
604         for (i = 0; i < nr_block_infos; i++)
605                 types[BLOCK_INFO_STATE(block_infos[i])]++;
606
607         return len;
608 }
609
610 static const char *block_state_names[] = {
611         [BLOCK_STATE_UNINIT] = "unwritten",
612         [BLOCK_STATE_TRIMMED] = "trimmed",
613         [BLOCK_STATE_WRITTEN] = "written",
614         [BLOCK_STATE_TRIM_FAILURE] = "trim failure",
615         [BLOCK_STATE_WRITE_FAILURE] = "write failure",
616 };
617
618 static void show_block_infos(int nr_block_infos, uint32_t *block_infos,
619                              fio_fp64_t *plist, struct buf_output *out)
620 {
621         int len, pos, i;
622         unsigned int *percentiles = NULL;
623         unsigned int block_state_counts[BLOCK_STATE_COUNT];
624
625         len = calc_block_percentiles(nr_block_infos, block_infos, plist,
626                                      &percentiles, block_state_counts);
627
628         log_buf(out, "  block lifetime percentiles :\n   |");
629         pos = 0;
630         for (i = 0; i < len; i++) {
631                 uint32_t block_info = percentiles[i];
632 #define LINE_LENGTH     75
633                 char str[LINE_LENGTH];
634                 int strln = snprintf(str, LINE_LENGTH, " %3.2fth=%u%c",
635                                      plist[i].u.f, block_info,
636                                      i == len - 1 ? '\n' : ',');
637                 assert(strln < LINE_LENGTH);
638                 if (pos + strln > LINE_LENGTH) {
639                         pos = 0;
640                         log_buf(out, "\n   |");
641                 }
642                 log_buf(out, "%s", str);
643                 pos += strln;
644 #undef LINE_LENGTH
645         }
646         if (percentiles)
647                 free(percentiles);
648
649         log_buf(out, "        states               :");
650         for (i = 0; i < BLOCK_STATE_COUNT; i++)
651                 log_buf(out, " %s=%u%c",
652                          block_state_names[i], block_state_counts[i],
653                          i == BLOCK_STATE_COUNT - 1 ? '\n' : ',');
654 }
655
656 static void show_thread_status_normal(struct thread_stat *ts,
657                                       struct group_run_stats *rs,
658                                       struct buf_output *out)
659 {
660         double usr_cpu, sys_cpu;
661         unsigned long runtime;
662         double io_u_dist[FIO_IO_U_MAP_NR];
663         time_t time_p;
664         char time_buf[32];
665
666         if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u))
667                 return;
668
669         time(&time_p);
670         os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
671
672         if (!ts->error) {
673                 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s",
674                                         ts->name, ts->groupid, ts->members,
675                                         ts->error, (int) ts->pid, time_buf);
676         } else {
677                 log_buf(out, "%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s",
678                                         ts->name, ts->groupid, ts->members,
679                                         ts->error, ts->verror, (int) ts->pid,
680                                         time_buf);
681         }
682
683         if (strlen(ts->description))
684                 log_buf(out, "  Description  : [%s]\n", ts->description);
685
686         if (ts->io_bytes[DDIR_READ])
687                 show_ddir_status(rs, ts, DDIR_READ, out);
688         if (ts->io_bytes[DDIR_WRITE])
689                 show_ddir_status(rs, ts, DDIR_WRITE, out);
690         if (ts->io_bytes[DDIR_TRIM])
691                 show_ddir_status(rs, ts, DDIR_TRIM, out);
692
693         show_latencies(ts, out);
694
695         runtime = ts->total_run_time;
696         if (runtime) {
697                 double runt = (double) runtime;
698
699                 usr_cpu = (double) ts->usr_time * 100 / runt;
700                 sys_cpu = (double) ts->sys_time * 100 / runt;
701         } else {
702                 usr_cpu = 0;
703                 sys_cpu = 0;
704         }
705
706         log_buf(out, "  cpu          : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu,"
707                  " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu,
708                         (unsigned long long) ts->ctx,
709                         (unsigned long long) ts->majf,
710                         (unsigned long long) ts->minf);
711
712         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
713         log_buf(out, "  IO depths    : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%,"
714                  " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
715                                         io_u_dist[1], io_u_dist[2],
716                                         io_u_dist[3], io_u_dist[4],
717                                         io_u_dist[5], io_u_dist[6]);
718
719         stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist);
720         log_buf(out, "     submit    : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
721                  " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
722                                         io_u_dist[1], io_u_dist[2],
723                                         io_u_dist[3], io_u_dist[4],
724                                         io_u_dist[5], io_u_dist[6]);
725         stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist);
726         log_buf(out, "     complete  : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%,"
727                  " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0],
728                                         io_u_dist[1], io_u_dist[2],
729                                         io_u_dist[3], io_u_dist[4],
730                                         io_u_dist[5], io_u_dist[6]);
731         log_buf(out, "     issued    : total=r=%llu/w=%llu/d=%llu,"
732                                  " short=r=%llu/w=%llu/d=%llu,"
733                                  " drop=r=%llu/w=%llu/d=%llu\n",
734                                         (unsigned long long) ts->total_io_u[0],
735                                         (unsigned long long) ts->total_io_u[1],
736                                         (unsigned long long) ts->total_io_u[2],
737                                         (unsigned long long) ts->short_io_u[0],
738                                         (unsigned long long) ts->short_io_u[1],
739                                         (unsigned long long) ts->short_io_u[2],
740                                         (unsigned long long) ts->drop_io_u[0],
741                                         (unsigned long long) ts->drop_io_u[1],
742                                         (unsigned long long) ts->drop_io_u[2]);
743         if (ts->continue_on_error) {
744                 log_buf(out, "     errors    : total=%llu, first_error=%d/<%s>\n",
745                                         (unsigned long long)ts->total_err_count,
746                                         ts->first_error,
747                                         strerror(ts->first_error));
748         }
749         if (ts->latency_depth) {
750                 log_buf(out, "     latency   : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n",
751                                         (unsigned long long)ts->latency_target,
752                                         (unsigned long long)ts->latency_window,
753                                         ts->latency_percentile.u.f,
754                                         ts->latency_depth);
755         }
756
757         if (ts->nr_block_infos)
758                 show_block_infos(ts->nr_block_infos, ts->block_infos,
759                                   ts->percentile_list, out);
760 }
761
762 static void show_ddir_status_terse(struct thread_stat *ts,
763                                    struct group_run_stats *rs, int ddir,
764                                    struct buf_output *out)
765 {
766         unsigned long min, max;
767         unsigned long long bw, iops;
768         unsigned int *ovals = NULL;
769         double mean, dev;
770         unsigned int len, minv, maxv;
771         int i;
772
773         assert(ddir_rw(ddir));
774
775         iops = bw = 0;
776         if (ts->runtime[ddir]) {
777                 uint64_t runt = ts->runtime[ddir];
778
779                 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
780                 iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt;
781         }
782
783         log_buf(out, ";%llu;%llu;%llu;%llu",
784                 (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops,
785                                         (unsigned long long) ts->runtime[ddir]);
786
787         if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev))
788                 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
789         else
790                 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
791
792         if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev))
793                 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
794         else
795                 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
796
797         if (ts->clat_percentiles) {
798                 len = calc_clat_percentiles(ts->io_u_plat[ddir],
799                                         ts->clat_stat[ddir].samples,
800                                         ts->percentile_list, &ovals, &maxv,
801                                         &minv);
802         } else
803                 len = 0;
804
805         for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
806                 if (i >= len) {
807                         log_buf(out, ";0%%=0");
808                         continue;
809                 }
810                 log_buf(out, ";%f%%=%u", ts->percentile_list[i].u.f, ovals[i]);
811         }
812
813         if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev))
814                 log_buf(out, ";%lu;%lu;%f;%f", min, max, mean, dev);
815         else
816                 log_buf(out, ";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0);
817
818         if (ovals)
819                 free(ovals);
820
821         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
822                 double p_of_agg = 100.0;
823
824                 if (rs->agg[ddir]) {
825                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
826                         if (p_of_agg > 100.0)
827                                 p_of_agg = 100.0;
828                 }
829
830                 log_buf(out, ";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev);
831         } else
832                 log_buf(out, ";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0);
833 }
834
835 static void add_ddir_status_json(struct thread_stat *ts,
836                 struct group_run_stats *rs, int ddir, struct json_object *parent)
837 {
838         unsigned long min, max;
839         unsigned long long bw;
840         unsigned int *ovals = NULL;
841         double mean, dev, iops;
842         unsigned int len, minv, maxv;
843         int i;
844         const char *ddirname[] = {"read", "write", "trim"};
845         struct json_object *dir_object, *tmp_object, *percentile_object, *clat_bins_object;
846         char buf[120];
847         double p_of_agg = 100.0;
848
849         assert(ddir_rw(ddir));
850
851         if (ts->unified_rw_rep && ddir != DDIR_READ)
852                 return;
853
854         dir_object = json_create_object();
855         json_object_add_value_object(parent,
856                 ts->unified_rw_rep ? "mixed" : ddirname[ddir], dir_object);
857
858         bw = 0;
859         iops = 0.0;
860         if (ts->runtime[ddir]) {
861                 uint64_t runt = ts->runtime[ddir];
862
863                 bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024;
864                 iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt;
865         }
866
867         json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir] >> 10);
868         json_object_add_value_int(dir_object, "bw", bw);
869         json_object_add_value_float(dir_object, "iops", iops);
870         json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]);
871         json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]);
872         json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]);
873         json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]);
874
875         if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) {
876                 min = max = 0;
877                 mean = dev = 0.0;
878         }
879         tmp_object = json_create_object();
880         json_object_add_value_object(dir_object, "slat", tmp_object);
881         json_object_add_value_int(tmp_object, "min", min);
882         json_object_add_value_int(tmp_object, "max", max);
883         json_object_add_value_float(tmp_object, "mean", mean);
884         json_object_add_value_float(tmp_object, "stddev", dev);
885
886         if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) {
887                 min = max = 0;
888                 mean = dev = 0.0;
889         }
890         tmp_object = json_create_object();
891         json_object_add_value_object(dir_object, "clat", tmp_object);
892         json_object_add_value_int(tmp_object, "min", min);
893         json_object_add_value_int(tmp_object, "max", max);
894         json_object_add_value_float(tmp_object, "mean", mean);
895         json_object_add_value_float(tmp_object, "stddev", dev);
896
897         if (ts->clat_percentiles) {
898                 len = calc_clat_percentiles(ts->io_u_plat[ddir],
899                                         ts->clat_stat[ddir].samples,
900                                         ts->percentile_list, &ovals, &maxv,
901                                         &minv);
902         } else
903                 len = 0;
904
905         percentile_object = json_create_object();
906         json_object_add_value_object(tmp_object, "percentile", percentile_object);
907         for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
908                 if (i >= len) {
909                         json_object_add_value_int(percentile_object, "0.00", 0);
910                         continue;
911                 }
912                 snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f);
913                 json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]);
914         }
915
916         if (output_format & FIO_OUTPUT_JSON_PLUS) {
917                 clat_bins_object = json_create_object();
918                 json_object_add_value_object(tmp_object, "bins", clat_bins_object);
919                 for(i = 0; i < FIO_IO_U_PLAT_NR; i++) {
920                         snprintf(buf, sizeof(buf), "%d", i);
921                         json_object_add_value_int(clat_bins_object, (const char *)buf, ts->io_u_plat[ddir][i]);
922                 }
923                 json_object_add_value_int(clat_bins_object, "FIO_IO_U_PLAT_BITS", FIO_IO_U_PLAT_BITS);
924                 json_object_add_value_int(clat_bins_object, "FIO_IO_U_PLAT_VAL", FIO_IO_U_PLAT_VAL);
925                 json_object_add_value_int(clat_bins_object, "FIO_IO_U_PLAT_NR", FIO_IO_U_PLAT_NR);
926         }
927
928         if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) {
929                 min = max = 0;
930                 mean = dev = 0.0;
931         }
932         tmp_object = json_create_object();
933         json_object_add_value_object(dir_object, "lat", tmp_object);
934         json_object_add_value_int(tmp_object, "min", min);
935         json_object_add_value_int(tmp_object, "max", max);
936         json_object_add_value_float(tmp_object, "mean", mean);
937         json_object_add_value_float(tmp_object, "stddev", dev);
938         if (ovals)
939                 free(ovals);
940
941         if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) {
942                 if (rs->agg[ddir]) {
943                         p_of_agg = mean * 100 / (double) rs->agg[ddir];
944                         if (p_of_agg > 100.0)
945                                 p_of_agg = 100.0;
946                 }
947         } else {
948                 min = max = 0;
949                 p_of_agg = mean = dev = 0.0;
950         }
951         json_object_add_value_int(dir_object, "bw_min", min);
952         json_object_add_value_int(dir_object, "bw_max", max);
953         json_object_add_value_float(dir_object, "bw_agg", p_of_agg);
954         json_object_add_value_float(dir_object, "bw_mean", mean);
955         json_object_add_value_float(dir_object, "bw_dev", dev);
956 }
957
958 static void show_thread_status_terse_v2(struct thread_stat *ts,
959                                         struct group_run_stats *rs,
960                                         struct buf_output *out)
961 {
962         double io_u_dist[FIO_IO_U_MAP_NR];
963         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
964         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
965         double usr_cpu, sys_cpu;
966         int i;
967
968         /* General Info */
969         log_buf(out, "2;%s;%d;%d", ts->name, ts->groupid, ts->error);
970         /* Log Read Status */
971         show_ddir_status_terse(ts, rs, DDIR_READ, out);
972         /* Log Write Status */
973         show_ddir_status_terse(ts, rs, DDIR_WRITE, out);
974         /* Log Trim Status */
975         show_ddir_status_terse(ts, rs, DDIR_TRIM, out);
976
977         /* CPU Usage */
978         if (ts->total_run_time) {
979                 double runt = (double) ts->total_run_time;
980
981                 usr_cpu = (double) ts->usr_time * 100 / runt;
982                 sys_cpu = (double) ts->sys_time * 100 / runt;
983         } else {
984                 usr_cpu = 0;
985                 sys_cpu = 0;
986         }
987
988         log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
989                                                 (unsigned long long) ts->ctx,
990                                                 (unsigned long long) ts->majf,
991                                                 (unsigned long long) ts->minf);
992
993         /* Calc % distribution of IO depths, usecond, msecond latency */
994         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
995         stat_calc_lat_u(ts, io_u_lat_u);
996         stat_calc_lat_m(ts, io_u_lat_m);
997
998         /* Only show fixed 7 I/O depth levels*/
999         log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1000                         io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1001                         io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1002
1003         /* Microsecond latency */
1004         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1005                 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1006         /* Millisecond latency */
1007         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1008                 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1009         /* Additional output if continue_on_error set - default off*/
1010         if (ts->continue_on_error)
1011                 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1012         log_buf(out, "\n");
1013
1014         /* Additional output if description is set */
1015         if (strlen(ts->description))
1016                 log_buf(out, ";%s", ts->description);
1017
1018         log_buf(out, "\n");
1019 }
1020
1021 static void show_thread_status_terse_v3_v4(struct thread_stat *ts,
1022                                            struct group_run_stats *rs, int ver,
1023                                            struct buf_output *out)
1024 {
1025         double io_u_dist[FIO_IO_U_MAP_NR];
1026         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1027         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1028         double usr_cpu, sys_cpu;
1029         int i;
1030
1031         /* General Info */
1032         log_buf(out, "%d;%s;%s;%d;%d", ver, fio_version_string,
1033                                         ts->name, ts->groupid, ts->error);
1034         /* Log Read Status */
1035         show_ddir_status_terse(ts, rs, DDIR_READ, out);
1036         /* Log Write Status */
1037         show_ddir_status_terse(ts, rs, DDIR_WRITE, out);
1038         /* Log Trim Status */
1039         if (ver == 4)
1040                 show_ddir_status_terse(ts, rs, DDIR_TRIM, out);
1041
1042         /* CPU Usage */
1043         if (ts->total_run_time) {
1044                 double runt = (double) ts->total_run_time;
1045
1046                 usr_cpu = (double) ts->usr_time * 100 / runt;
1047                 sys_cpu = (double) ts->sys_time * 100 / runt;
1048         } else {
1049                 usr_cpu = 0;
1050                 sys_cpu = 0;
1051         }
1052
1053         log_buf(out, ";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu,
1054                                                 (unsigned long long) ts->ctx,
1055                                                 (unsigned long long) ts->majf,
1056                                                 (unsigned long long) ts->minf);
1057
1058         /* Calc % distribution of IO depths, usecond, msecond latency */
1059         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1060         stat_calc_lat_u(ts, io_u_lat_u);
1061         stat_calc_lat_m(ts, io_u_lat_m);
1062
1063         /* Only show fixed 7 I/O depth levels*/
1064         log_buf(out, ";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%",
1065                         io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3],
1066                         io_u_dist[4], io_u_dist[5], io_u_dist[6]);
1067
1068         /* Microsecond latency */
1069         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1070                 log_buf(out, ";%3.2f%%", io_u_lat_u[i]);
1071         /* Millisecond latency */
1072         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1073                 log_buf(out, ";%3.2f%%", io_u_lat_m[i]);
1074
1075         /* disk util stats, if any */
1076         show_disk_util(1, NULL, out);
1077
1078         /* Additional output if continue_on_error set - default off*/
1079         if (ts->continue_on_error)
1080                 log_buf(out, ";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error);
1081
1082         /* Additional output if description is set */
1083         if (strlen(ts->description))
1084                 log_buf(out, ";%s", ts->description);
1085
1086         log_buf(out, "\n");
1087 }
1088
1089 void json_add_job_opts(struct json_object *root, const char *name,
1090                        struct flist_head *opt_list, bool num_jobs)
1091 {
1092         struct json_object *dir_object;
1093         struct flist_head *entry;
1094         struct print_option *p;
1095
1096         if (flist_empty(opt_list))
1097                 return;
1098
1099         dir_object = json_create_object();
1100         json_object_add_value_object(root, name, dir_object);
1101
1102         flist_for_each(entry, opt_list) {
1103                 const char *pos = "";
1104
1105                 p = flist_entry(entry, struct print_option, list);
1106                 if (!num_jobs && !strcmp(p->name, "numjobs"))
1107                         continue;
1108                 if (p->value)
1109                         pos = p->value;
1110                 json_object_add_value_string(dir_object, p->name, pos);
1111         }
1112 }
1113
1114 static struct json_object *show_thread_status_json(struct thread_stat *ts,
1115                                                    struct group_run_stats *rs,
1116                                                    struct flist_head *opt_list)
1117 {
1118         struct json_object *root, *tmp;
1119         struct jobs_eta *je;
1120         double io_u_dist[FIO_IO_U_MAP_NR];
1121         double io_u_lat_u[FIO_IO_U_LAT_U_NR];
1122         double io_u_lat_m[FIO_IO_U_LAT_M_NR];
1123         double usr_cpu, sys_cpu;
1124         int i;
1125         size_t size;
1126
1127         root = json_create_object();
1128         json_object_add_value_string(root, "jobname", ts->name);
1129         json_object_add_value_int(root, "groupid", ts->groupid);
1130         json_object_add_value_int(root, "error", ts->error);
1131
1132         /* ETA Info */
1133         je = get_jobs_eta(true, &size);
1134         if (je) {
1135                 json_object_add_value_int(root, "eta", je->eta_sec);
1136                 json_object_add_value_int(root, "elapsed", je->elapsed_sec);
1137         }
1138
1139         if (opt_list)
1140                 json_add_job_opts(root, "job options", opt_list, true);
1141
1142         add_ddir_status_json(ts, rs, DDIR_READ, root);
1143         add_ddir_status_json(ts, rs, DDIR_WRITE, root);
1144         add_ddir_status_json(ts, rs, DDIR_TRIM, root);
1145
1146         /* CPU Usage */
1147         if (ts->total_run_time) {
1148                 double runt = (double) ts->total_run_time;
1149
1150                 usr_cpu = (double) ts->usr_time * 100 / runt;
1151                 sys_cpu = (double) ts->sys_time * 100 / runt;
1152         } else {
1153                 usr_cpu = 0;
1154                 sys_cpu = 0;
1155         }
1156         json_object_add_value_float(root, "usr_cpu", usr_cpu);
1157         json_object_add_value_float(root, "sys_cpu", sys_cpu);
1158         json_object_add_value_int(root, "ctx", ts->ctx);
1159         json_object_add_value_int(root, "majf", ts->majf);
1160         json_object_add_value_int(root, "minf", ts->minf);
1161
1162
1163         /* Calc % distribution of IO depths, usecond, msecond latency */
1164         stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist);
1165         stat_calc_lat_u(ts, io_u_lat_u);
1166         stat_calc_lat_m(ts, io_u_lat_m);
1167
1168         tmp = json_create_object();
1169         json_object_add_value_object(root, "iodepth_level", tmp);
1170         /* Only show fixed 7 I/O depth levels*/
1171         for (i = 0; i < 7; i++) {
1172                 char name[20];
1173                 if (i < 6)
1174                         snprintf(name, 20, "%d", 1 << i);
1175                 else
1176                         snprintf(name, 20, ">=%d", 1 << i);
1177                 json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]);
1178         }
1179
1180         tmp = json_create_object();
1181         json_object_add_value_object(root, "latency_us", tmp);
1182         /* Microsecond latency */
1183         for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
1184                 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1185                                  "250", "500", "750", "1000", };
1186                 json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]);
1187         }
1188         /* Millisecond latency */
1189         tmp = json_create_object();
1190         json_object_add_value_object(root, "latency_ms", tmp);
1191         for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) {
1192                 const char *ranges[] = { "2", "4", "10", "20", "50", "100",
1193                                  "250", "500", "750", "1000", "2000",
1194                                  ">=2000", };
1195                 json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]);
1196         }
1197
1198         /* Additional output if continue_on_error set - default off*/
1199         if (ts->continue_on_error) {
1200                 json_object_add_value_int(root, "total_err", ts->total_err_count);
1201                 json_object_add_value_int(root, "first_error", ts->first_error);
1202         }
1203
1204         if (ts->latency_depth) {
1205                 json_object_add_value_int(root, "latency_depth", ts->latency_depth);
1206                 json_object_add_value_int(root, "latency_target", ts->latency_target);
1207                 json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f);
1208                 json_object_add_value_int(root, "latency_window", ts->latency_window);
1209         }
1210
1211         /* Additional output if description is set */
1212         if (strlen(ts->description))
1213                 json_object_add_value_string(root, "desc", ts->description);
1214
1215         if (ts->nr_block_infos) {
1216                 /* Block error histogram and types */
1217                 int len;
1218                 unsigned int *percentiles = NULL;
1219                 unsigned int block_state_counts[BLOCK_STATE_COUNT];
1220
1221                 len = calc_block_percentiles(ts->nr_block_infos, ts->block_infos,
1222                                              ts->percentile_list,
1223                                              &percentiles, block_state_counts);
1224
1225                 if (len) {
1226                         struct json_object *block, *percentile_object, *states;
1227                         int state;
1228                         block = json_create_object();
1229                         json_object_add_value_object(root, "block", block);
1230
1231                         percentile_object = json_create_object();
1232                         json_object_add_value_object(block, "percentiles",
1233                                                      percentile_object);
1234                         for (i = 0; i < len; i++) {
1235                                 char buf[20];
1236                                 snprintf(buf, sizeof(buf), "%f",
1237                                          ts->percentile_list[i].u.f);
1238                                 json_object_add_value_int(percentile_object,
1239                                                           (const char *)buf,
1240                                                           percentiles[i]);
1241                         }
1242
1243                         states = json_create_object();
1244                         json_object_add_value_object(block, "states", states);
1245                         for (state = 0; state < BLOCK_STATE_COUNT; state++) {
1246                                 json_object_add_value_int(states,
1247                                         block_state_names[state],
1248                                         block_state_counts[state]);
1249                         }
1250                         free(percentiles);
1251                 }
1252         }
1253
1254         return root;
1255 }
1256
1257 static void show_thread_status_terse(struct thread_stat *ts,
1258                                      struct group_run_stats *rs,
1259                                      struct buf_output *out)
1260 {
1261         if (terse_version == 2)
1262                 show_thread_status_terse_v2(ts, rs, out);
1263         else if (terse_version == 3 || terse_version == 4)
1264                 show_thread_status_terse_v3_v4(ts, rs, terse_version, out);
1265         else
1266                 log_err("fio: bad terse version!? %d\n", terse_version);
1267 }
1268
1269 struct json_object *show_thread_status(struct thread_stat *ts,
1270                                        struct group_run_stats *rs,
1271                                        struct flist_head *opt_list,
1272                                        struct buf_output *out)
1273 {
1274         struct json_object *ret = NULL;
1275
1276         if (output_format & FIO_OUTPUT_TERSE)
1277                 show_thread_status_terse(ts, rs,  out);
1278         if (output_format & FIO_OUTPUT_JSON)
1279                 ret = show_thread_status_json(ts, rs, opt_list);
1280         if (output_format & FIO_OUTPUT_NORMAL)
1281                 show_thread_status_normal(ts, rs,  out);
1282
1283         return ret;
1284 }
1285
1286 static void sum_stat(struct io_stat *dst, struct io_stat *src, bool first)
1287 {
1288         double mean, S;
1289
1290         if (src->samples == 0)
1291                 return;
1292
1293         dst->min_val = min(dst->min_val, src->min_val);
1294         dst->max_val = max(dst->max_val, src->max_val);
1295
1296         /*
1297          * Compute new mean and S after the merge
1298          * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
1299          *  #Parallel_algorithm>
1300          */
1301         if (first) {
1302                 mean = src->mean.u.f;
1303                 S = src->S.u.f;
1304         } else {
1305                 double delta = src->mean.u.f - dst->mean.u.f;
1306
1307                 mean = ((src->mean.u.f * src->samples) +
1308                         (dst->mean.u.f * dst->samples)) /
1309                         (dst->samples + src->samples);
1310
1311                 S =  src->S.u.f + dst->S.u.f + pow(delta, 2.0) *
1312                         (dst->samples * src->samples) /
1313                         (dst->samples + src->samples);
1314         }
1315
1316         dst->samples += src->samples;
1317         dst->mean.u.f = mean;
1318         dst->S.u.f = S;
1319 }
1320
1321 void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src)
1322 {
1323         int i;
1324
1325         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1326                 if (dst->max_run[i] < src->max_run[i])
1327                         dst->max_run[i] = src->max_run[i];
1328                 if (dst->min_run[i] && dst->min_run[i] > src->min_run[i])
1329                         dst->min_run[i] = src->min_run[i];
1330                 if (dst->max_bw[i] < src->max_bw[i])
1331                         dst->max_bw[i] = src->max_bw[i];
1332                 if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i])
1333                         dst->min_bw[i] = src->min_bw[i];
1334
1335                 dst->io_kb[i] += src->io_kb[i];
1336                 dst->agg[i] += src->agg[i];
1337         }
1338
1339         if (!dst->kb_base)
1340                 dst->kb_base = src->kb_base;
1341         if (!dst->unit_base)
1342                 dst->unit_base = src->unit_base;
1343 }
1344
1345 void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src,
1346                       bool first)
1347 {
1348         int l, k;
1349
1350         for (l = 0; l < DDIR_RWDIR_CNT; l++) {
1351                 if (!dst->unified_rw_rep) {
1352                         sum_stat(&dst->clat_stat[l], &src->clat_stat[l], first);
1353                         sum_stat(&dst->slat_stat[l], &src->slat_stat[l], first);
1354                         sum_stat(&dst->lat_stat[l], &src->lat_stat[l], first);
1355                         sum_stat(&dst->bw_stat[l], &src->bw_stat[l], first);
1356
1357                         dst->io_bytes[l] += src->io_bytes[l];
1358
1359                         if (dst->runtime[l] < src->runtime[l])
1360                                 dst->runtime[l] = src->runtime[l];
1361                 } else {
1362                         sum_stat(&dst->clat_stat[0], &src->clat_stat[l], first);
1363                         sum_stat(&dst->slat_stat[0], &src->slat_stat[l], first);
1364                         sum_stat(&dst->lat_stat[0], &src->lat_stat[l], first);
1365                         sum_stat(&dst->bw_stat[0], &src->bw_stat[l], first);
1366
1367                         dst->io_bytes[0] += src->io_bytes[l];
1368
1369                         if (dst->runtime[0] < src->runtime[l])
1370                                 dst->runtime[0] = src->runtime[l];
1371
1372                         /*
1373                          * We're summing to the same destination, so override
1374                          * 'first' after the first iteration of the loop
1375                          */
1376                         first = false;
1377                 }
1378         }
1379
1380         dst->usr_time += src->usr_time;
1381         dst->sys_time += src->sys_time;
1382         dst->ctx += src->ctx;
1383         dst->majf += src->majf;
1384         dst->minf += src->minf;
1385
1386         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1387                 dst->io_u_map[k] += src->io_u_map[k];
1388         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1389                 dst->io_u_submit[k] += src->io_u_submit[k];
1390         for (k = 0; k < FIO_IO_U_MAP_NR; k++)
1391                 dst->io_u_complete[k] += src->io_u_complete[k];
1392         for (k = 0; k < FIO_IO_U_LAT_U_NR; k++)
1393                 dst->io_u_lat_u[k] += src->io_u_lat_u[k];
1394         for (k = 0; k < FIO_IO_U_LAT_M_NR; k++)
1395                 dst->io_u_lat_m[k] += src->io_u_lat_m[k];
1396
1397         for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1398                 if (!dst->unified_rw_rep) {
1399                         dst->total_io_u[k] += src->total_io_u[k];
1400                         dst->short_io_u[k] += src->short_io_u[k];
1401                         dst->drop_io_u[k] += src->drop_io_u[k];
1402                 } else {
1403                         dst->total_io_u[0] += src->total_io_u[k];
1404                         dst->short_io_u[0] += src->short_io_u[k];
1405                         dst->drop_io_u[0] += src->drop_io_u[k];
1406                 }
1407         }
1408
1409         for (k = 0; k < DDIR_RWDIR_CNT; k++) {
1410                 int m;
1411
1412                 for (m = 0; m < FIO_IO_U_PLAT_NR; m++) {
1413                         if (!dst->unified_rw_rep)
1414                                 dst->io_u_plat[k][m] += src->io_u_plat[k][m];
1415                         else
1416                                 dst->io_u_plat[0][m] += src->io_u_plat[k][m];
1417                 }
1418         }
1419
1420         dst->total_run_time += src->total_run_time;
1421         dst->total_submit += src->total_submit;
1422         dst->total_complete += src->total_complete;
1423 }
1424
1425 void init_group_run_stat(struct group_run_stats *gs)
1426 {
1427         int i;
1428         memset(gs, 0, sizeof(*gs));
1429
1430         for (i = 0; i < DDIR_RWDIR_CNT; i++)
1431                 gs->min_bw[i] = gs->min_run[i] = ~0UL;
1432 }
1433
1434 void init_thread_stat(struct thread_stat *ts)
1435 {
1436         int j;
1437
1438         memset(ts, 0, sizeof(*ts));
1439
1440         for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1441                 ts->lat_stat[j].min_val = -1UL;
1442                 ts->clat_stat[j].min_val = -1UL;
1443                 ts->slat_stat[j].min_val = -1UL;
1444                 ts->bw_stat[j].min_val = -1UL;
1445         }
1446         ts->groupid = -1;
1447 }
1448
1449 void __show_run_stats(void)
1450 {
1451         struct group_run_stats *runstats, *rs;
1452         struct thread_data *td;
1453         struct thread_stat *threadstats, *ts;
1454         int i, j, k, nr_ts, last_ts, idx;
1455         int kb_base_warned = 0;
1456         int unit_base_warned = 0;
1457         struct json_object *root = NULL;
1458         struct json_array *array = NULL;
1459         struct buf_output output[FIO_OUTPUT_NR];
1460         struct flist_head **opt_lists;
1461
1462         runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1));
1463
1464         for (i = 0; i < groupid + 1; i++)
1465                 init_group_run_stat(&runstats[i]);
1466
1467         /*
1468          * find out how many threads stats we need. if group reporting isn't
1469          * enabled, it's one-per-td.
1470          */
1471         nr_ts = 0;
1472         last_ts = -1;
1473         for_each_td(td, i) {
1474                 if (!td->o.group_reporting) {
1475                         nr_ts++;
1476                         continue;
1477                 }
1478                 if (last_ts == td->groupid)
1479                         continue;
1480
1481                 last_ts = td->groupid;
1482                 nr_ts++;
1483         }
1484
1485         threadstats = malloc(nr_ts * sizeof(struct thread_stat));
1486         opt_lists = malloc(nr_ts * sizeof(struct flist_head *));
1487
1488         for (i = 0; i < nr_ts; i++) {
1489                 init_thread_stat(&threadstats[i]);
1490                 opt_lists[i] = NULL;
1491         }
1492
1493         j = 0;
1494         last_ts = -1;
1495         idx = 0;
1496         for_each_td(td, i) {
1497                 if (idx && (!td->o.group_reporting ||
1498                     (td->o.group_reporting && last_ts != td->groupid))) {
1499                         idx = 0;
1500                         j++;
1501                 }
1502
1503                 last_ts = td->groupid;
1504
1505                 ts = &threadstats[j];
1506
1507                 ts->clat_percentiles = td->o.clat_percentiles;
1508                 ts->percentile_precision = td->o.percentile_precision;
1509                 memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
1510                 opt_lists[j] = &td->opt_list;
1511
1512                 idx++;
1513                 ts->members++;
1514
1515                 if (ts->groupid == -1) {
1516                         /*
1517                          * These are per-group shared already
1518                          */
1519                         strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1);
1520                         if (td->o.description)
1521                                 strncpy(ts->description, td->o.description,
1522                                                 FIO_JOBDESC_SIZE - 1);
1523                         else
1524                                 memset(ts->description, 0, FIO_JOBDESC_SIZE);
1525
1526                         /*
1527                          * If multiple entries in this group, this is
1528                          * the first member.
1529                          */
1530                         ts->thread_number = td->thread_number;
1531                         ts->groupid = td->groupid;
1532
1533                         /*
1534                          * first pid in group, not very useful...
1535                          */
1536                         ts->pid = td->pid;
1537
1538                         ts->kb_base = td->o.kb_base;
1539                         ts->unit_base = td->o.unit_base;
1540                         ts->unified_rw_rep = td->o.unified_rw_rep;
1541                 } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) {
1542                         log_info("fio: kb_base differs for jobs in group, using"
1543                                  " %u as the base\n", ts->kb_base);
1544                         kb_base_warned = 1;
1545                 } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) {
1546                         log_info("fio: unit_base differs for jobs in group, using"
1547                                  " %u as the base\n", ts->unit_base);
1548                         unit_base_warned = 1;
1549                 }
1550
1551                 ts->continue_on_error = td->o.continue_on_error;
1552                 ts->total_err_count += td->total_err_count;
1553                 ts->first_error = td->first_error;
1554                 if (!ts->error) {
1555                         if (!td->error && td->o.continue_on_error &&
1556                             td->first_error) {
1557                                 ts->error = td->first_error;
1558                                 ts->verror[sizeof(ts->verror) - 1] = '\0';
1559                                 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1560                         } else  if (td->error) {
1561                                 ts->error = td->error;
1562                                 ts->verror[sizeof(ts->verror) - 1] = '\0';
1563                                 strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1);
1564                         }
1565                 }
1566
1567                 ts->latency_depth = td->latency_qd;
1568                 ts->latency_target = td->o.latency_target;
1569                 ts->latency_percentile = td->o.latency_percentile;
1570                 ts->latency_window = td->o.latency_window;
1571
1572                 ts->nr_block_infos = td->ts.nr_block_infos;
1573                 for (k = 0; k < ts->nr_block_infos; k++)
1574                         ts->block_infos[k] = td->ts.block_infos[k];
1575
1576                 sum_thread_stats(ts, &td->ts, idx == 1);
1577         }
1578
1579         for (i = 0; i < nr_ts; i++) {
1580                 unsigned long long bw;
1581
1582                 ts = &threadstats[i];
1583                 if (ts->groupid == -1)
1584                         continue;
1585                 rs = &runstats[ts->groupid];
1586                 rs->kb_base = ts->kb_base;
1587                 rs->unit_base = ts->unit_base;
1588                 rs->unified_rw_rep += ts->unified_rw_rep;
1589
1590                 for (j = 0; j < DDIR_RWDIR_CNT; j++) {
1591                         if (!ts->runtime[j])
1592                                 continue;
1593                         if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j])
1594                                 rs->min_run[j] = ts->runtime[j];
1595                         if (ts->runtime[j] > rs->max_run[j])
1596                                 rs->max_run[j] = ts->runtime[j];
1597
1598                         bw = 0;
1599                         if (ts->runtime[j]) {
1600                                 unsigned long runt = ts->runtime[j];
1601                                 unsigned long long kb;
1602
1603                                 kb = ts->io_bytes[j] / rs->kb_base;
1604                                 bw = kb * 1000 / runt;
1605                         }
1606                         if (bw < rs->min_bw[j])
1607                                 rs->min_bw[j] = bw;
1608                         if (bw > rs->max_bw[j])
1609                                 rs->max_bw[j] = bw;
1610
1611                         rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base;
1612                 }
1613         }
1614
1615         for (i = 0; i < groupid + 1; i++) {
1616                 int ddir;
1617
1618                 rs = &runstats[i];
1619
1620                 for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) {
1621                         if (rs->max_run[ddir])
1622                                 rs->agg[ddir] = (rs->io_kb[ddir] * 1000) /
1623                                                 rs->max_run[ddir];
1624                 }
1625         }
1626
1627         for (i = 0; i < FIO_OUTPUT_NR; i++)
1628                 buf_output_init(&output[i]);
1629
1630         /*
1631          * don't overwrite last signal output
1632          */
1633         if (output_format & FIO_OUTPUT_NORMAL)
1634                 log_buf(&output[__FIO_OUTPUT_NORMAL], "\n");
1635         if (output_format & FIO_OUTPUT_JSON) {
1636                 struct thread_data *global;
1637                 char time_buf[32];
1638                 time_t time_p;
1639
1640                 time(&time_p);
1641                 os_ctime_r((const time_t *) &time_p, time_buf,
1642                                 sizeof(time_buf));
1643                 time_buf[strlen(time_buf) - 1] = '\0';
1644
1645                 root = json_create_object();
1646                 json_object_add_value_string(root, "fio version", fio_version_string);
1647                 json_object_add_value_int(root, "timestamp", time_p);
1648                 json_object_add_value_string(root, "time", time_buf);
1649                 global = get_global_options();
1650                 json_add_job_opts(root, "global options", &global->opt_list, false);
1651                 array = json_create_array();
1652                 json_object_add_value_array(root, "jobs", array);
1653         }
1654
1655         if (is_backend)
1656                 fio_server_send_job_options(&get_global_options()->opt_list, -1U);
1657
1658         for (i = 0; i < nr_ts; i++) {
1659                 ts = &threadstats[i];
1660                 rs = &runstats[ts->groupid];
1661
1662                 if (is_backend) {
1663                         fio_server_send_job_options(opt_lists[i], i);
1664                         fio_server_send_ts(ts, rs);
1665                 } else {
1666                         if (output_format & FIO_OUTPUT_TERSE)
1667                                 show_thread_status_terse(ts, rs, &output[__FIO_OUTPUT_TERSE]);
1668                         if (output_format & FIO_OUTPUT_JSON) {
1669                                 struct json_object *tmp = show_thread_status_json(ts, rs, opt_lists[i]);
1670                                 json_array_add_value_object(array, tmp);
1671                         }
1672                         if (output_format & FIO_OUTPUT_NORMAL)
1673                                 show_thread_status_normal(ts, rs, &output[__FIO_OUTPUT_NORMAL]);
1674                 }
1675         }
1676         if (!is_backend && (output_format & FIO_OUTPUT_JSON)) {
1677                 /* disk util stats, if any */
1678                 show_disk_util(1, root, &output[__FIO_OUTPUT_JSON]);
1679
1680                 show_idle_prof_stats(FIO_OUTPUT_JSON, root, &output[__FIO_OUTPUT_JSON]);
1681
1682                 json_print_object(root, &output[__FIO_OUTPUT_JSON]);
1683                 log_buf(&output[__FIO_OUTPUT_JSON], "\n");
1684                 json_free_object(root);
1685         }
1686
1687         for (i = 0; i < groupid + 1; i++) {
1688                 rs = &runstats[i];
1689
1690                 rs->groupid = i;
1691                 if (is_backend)
1692                         fio_server_send_gs(rs);
1693                 else if (output_format & FIO_OUTPUT_NORMAL)
1694                         show_group_stats(rs, &output[__FIO_OUTPUT_NORMAL]);
1695         }
1696
1697         if (is_backend)
1698                 fio_server_send_du();
1699         else if (output_format & FIO_OUTPUT_NORMAL) {
1700                 show_disk_util(0, NULL, &output[__FIO_OUTPUT_NORMAL]);
1701                 show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL, &output[__FIO_OUTPUT_NORMAL]);
1702         }
1703
1704         for (i = 0; i < FIO_OUTPUT_NR; i++) {
1705                 buf_output_flush(&output[i]);
1706                 buf_output_free(&output[i]);
1707         }
1708
1709         log_info_flush();
1710         free(runstats);
1711         free(threadstats);
1712         free(opt_lists);
1713 }
1714
1715 void show_run_stats(void)
1716 {
1717         fio_mutex_down(stat_mutex);
1718         __show_run_stats();
1719         fio_mutex_up(stat_mutex);
1720 }
1721
1722 void __show_running_run_stats(void)
1723 {
1724         struct thread_data *td;
1725         unsigned long long *rt;
1726         struct timeval tv;
1727         int i;
1728
1729         fio_mutex_down(stat_mutex);
1730
1731         rt = malloc(thread_number * sizeof(unsigned long long));
1732         fio_gettime(&tv, NULL);
1733
1734         for_each_td(td, i) {
1735                 td->update_rusage = 1;
1736                 td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ];
1737                 td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE];
1738                 td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM];
1739                 td->ts.total_run_time = mtime_since(&td->epoch, &tv);
1740
1741                 rt[i] = mtime_since(&td->start, &tv);
1742                 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
1743                         td->ts.runtime[DDIR_READ] += rt[i];
1744                 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
1745                         td->ts.runtime[DDIR_WRITE] += rt[i];
1746                 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
1747                         td->ts.runtime[DDIR_TRIM] += rt[i];
1748         }
1749
1750         for_each_td(td, i) {
1751                 if (td->runstate >= TD_EXITED)
1752                         continue;
1753                 if (td->rusage_sem) {
1754                         td->update_rusage = 1;
1755                         fio_mutex_down(td->rusage_sem);
1756                 }
1757                 td->update_rusage = 0;
1758         }
1759
1760         __show_run_stats();
1761
1762         for_each_td(td, i) {
1763                 if (td_read(td) && td->ts.io_bytes[DDIR_READ])
1764                         td->ts.runtime[DDIR_READ] -= rt[i];
1765                 if (td_write(td) && td->ts.io_bytes[DDIR_WRITE])
1766                         td->ts.runtime[DDIR_WRITE] -= rt[i];
1767                 if (td_trim(td) && td->ts.io_bytes[DDIR_TRIM])
1768                         td->ts.runtime[DDIR_TRIM] -= rt[i];
1769         }
1770
1771         free(rt);
1772         fio_mutex_up(stat_mutex);
1773 }
1774
1775 static int status_interval_init;
1776 static struct timeval status_time;
1777 static int status_file_disabled;
1778
1779 #define FIO_STATUS_FILE         "fio-dump-status"
1780
1781 static int check_status_file(void)
1782 {
1783         struct stat sb;
1784         const char *temp_dir;
1785         char fio_status_file_path[PATH_MAX];
1786
1787         if (status_file_disabled)
1788                 return 0;
1789
1790         temp_dir = getenv("TMPDIR");
1791         if (temp_dir == NULL) {
1792                 temp_dir = getenv("TEMP");
1793                 if (temp_dir && strlen(temp_dir) >= PATH_MAX)
1794                         temp_dir = NULL;
1795         }
1796         if (temp_dir == NULL)
1797                 temp_dir = "/tmp";
1798
1799         snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE);
1800
1801         if (stat(fio_status_file_path, &sb))
1802                 return 0;
1803
1804         if (unlink(fio_status_file_path) < 0) {
1805                 log_err("fio: failed to unlink %s: %s\n", fio_status_file_path,
1806                                                         strerror(errno));
1807                 log_err("fio: disabling status file updates\n");
1808                 status_file_disabled = 1;
1809         }
1810
1811         return 1;
1812 }
1813
1814 void check_for_running_stats(void)
1815 {
1816         if (status_interval) {
1817                 if (!status_interval_init) {
1818                         fio_gettime(&status_time, NULL);
1819                         status_interval_init = 1;
1820                 } else if (mtime_since_now(&status_time) >= status_interval) {
1821                         show_running_run_stats();
1822                         fio_gettime(&status_time, NULL);
1823                         return;
1824                 }
1825         }
1826         if (check_status_file()) {
1827                 show_running_run_stats();
1828                 return;
1829         }
1830 }
1831
1832 static inline void add_stat_sample(struct io_stat *is, unsigned long data)
1833 {
1834         double val = data;
1835         double delta;
1836
1837         if (data > is->max_val)
1838                 is->max_val = data;
1839         if (data < is->min_val)
1840                 is->min_val = data;
1841
1842         delta = val - is->mean.u.f;
1843         if (delta) {
1844                 is->mean.u.f += delta / (is->samples + 1.0);
1845                 is->S.u.f += delta * (val - is->mean.u.f);
1846         }
1847
1848         is->samples++;
1849 }
1850
1851 static void __add_log_sample(struct io_log *iolog, unsigned long val,
1852                              enum fio_ddir ddir, unsigned int bs,
1853                              unsigned long t, uint64_t offset)
1854 {
1855         uint64_t nr_samples = iolog->nr_samples;
1856         struct io_sample *s;
1857
1858         if (iolog->disabled)
1859                 return;
1860
1861         if (!iolog->nr_samples)
1862                 iolog->avg_last = t;
1863
1864         if (iolog->nr_samples == iolog->max_samples) {
1865                 size_t new_size;
1866                 void *new_log;
1867
1868                 new_size = 2 * iolog->max_samples * log_entry_sz(iolog);
1869
1870                 if (iolog->log_gz && (new_size > iolog->log_gz)) {
1871                         if (iolog_flush(iolog, 0)) {
1872                                 log_err("fio: failed flushing iolog! Will stop logging.\n");
1873                                 iolog->disabled = 1;
1874                                 return;
1875                         }
1876                         nr_samples = iolog->nr_samples;
1877                 } else {
1878                         new_log = realloc(iolog->log, new_size);
1879                         if (!new_log) {
1880                                 log_err("fio: failed extending iolog! Will stop logging.\n");
1881                                 iolog->disabled = 1;
1882                                 return;
1883                         }
1884                         iolog->log = new_log;
1885                         iolog->max_samples <<= 1;
1886                 }
1887         }
1888
1889         s = get_sample(iolog, nr_samples);
1890
1891         s->val = val;
1892         s->time = t;
1893         io_sample_set_ddir(iolog, s, ddir);
1894         s->bs = bs;
1895
1896         if (iolog->log_offset) {
1897                 struct io_sample_offset *so = (void *) s;
1898
1899                 so->offset = offset;
1900         }
1901
1902         iolog->nr_samples++;
1903 }
1904
1905 static inline void reset_io_stat(struct io_stat *ios)
1906 {
1907         ios->max_val = ios->min_val = ios->samples = 0;
1908         ios->mean.u.f = ios->S.u.f = 0;
1909 }
1910
1911 void reset_io_stats(struct thread_data *td)
1912 {
1913         struct thread_stat *ts = &td->ts;
1914         int i, j;
1915
1916         for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1917                 reset_io_stat(&ts->clat_stat[i]);
1918                 reset_io_stat(&ts->slat_stat[i]);
1919                 reset_io_stat(&ts->lat_stat[i]);
1920                 reset_io_stat(&ts->bw_stat[i]);
1921                 reset_io_stat(&ts->iops_stat[i]);
1922
1923                 ts->io_bytes[i] = 0;
1924                 ts->runtime[i] = 0;
1925
1926                 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1927                         ts->io_u_plat[i][j] = 0;
1928         }
1929
1930         for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1931                 ts->io_u_map[i] = 0;
1932                 ts->io_u_submit[i] = 0;
1933                 ts->io_u_complete[i] = 0;
1934                 ts->io_u_lat_u[i] = 0;
1935                 ts->io_u_lat_m[i] = 0;
1936                 ts->total_submit = 0;
1937                 ts->total_complete = 0;
1938         }
1939
1940         for (i = 0; i < 3; i++) {
1941                 ts->total_io_u[i] = 0;
1942                 ts->short_io_u[i] = 0;
1943                 ts->drop_io_u[i] = 0;
1944         }
1945 }
1946
1947 static void __add_stat_to_log(struct io_log *iolog, enum fio_ddir ddir,
1948                               unsigned long elapsed, bool log_max)
1949 {
1950         /*
1951          * Note an entry in the log. Use the mean from the logged samples,
1952          * making sure to properly round up. Only write a log entry if we
1953          * had actual samples done.
1954          */
1955         if (iolog->avg_window[ddir].samples) {
1956                 unsigned long val;
1957
1958                 if (log_max)
1959                         val = iolog->avg_window[ddir].max_val;
1960                 else
1961                         val = iolog->avg_window[ddir].mean.u.f + 0.50;
1962
1963                 __add_log_sample(iolog, val, ddir, 0, elapsed, 0);
1964         }
1965
1966         reset_io_stat(&iolog->avg_window[ddir]);
1967 }
1968
1969 static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed,
1970                              bool log_max)
1971 {
1972         int ddir;
1973
1974         for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++)
1975                 __add_stat_to_log(iolog, ddir, elapsed, log_max);
1976 }
1977
1978 static void add_log_sample(struct thread_data *td, struct io_log *iolog,
1979                            unsigned long val, enum fio_ddir ddir,
1980                            unsigned int bs, uint64_t offset)
1981 {
1982         unsigned long elapsed, this_window;
1983
1984         if (!ddir_rw(ddir))
1985                 return;
1986
1987         elapsed = mtime_since_now(&td->epoch);
1988
1989         /*
1990          * If no time averaging, just add the log sample.
1991          */
1992         if (!iolog->avg_msec) {
1993                 __add_log_sample(iolog, val, ddir, bs, elapsed, offset);
1994                 return;
1995         }
1996
1997         /*
1998          * Add the sample. If the time period has passed, then
1999          * add that entry to the log and clear.
2000          */
2001         add_stat_sample(&iolog->avg_window[ddir], val);
2002
2003         /*
2004          * If period hasn't passed, adding the above sample is all we
2005          * need to do.
2006          */
2007         this_window = elapsed - iolog->avg_last;
2008         if (this_window < iolog->avg_msec)
2009                 return;
2010
2011         _add_stat_to_log(iolog, elapsed, td->o.log_max != 0);
2012
2013         iolog->avg_last = elapsed;
2014 }
2015
2016 void finalize_logs(struct thread_data *td)
2017 {
2018         unsigned long elapsed;
2019
2020         elapsed = mtime_since_now(&td->epoch);
2021
2022         if (td->clat_log)
2023                 _add_stat_to_log(td->clat_log, elapsed, td->o.log_max != 0);
2024         if (td->slat_log)
2025                 _add_stat_to_log(td->slat_log, elapsed, td->o.log_max != 0);
2026         if (td->lat_log)
2027                 _add_stat_to_log(td->lat_log, elapsed, td->o.log_max != 0);
2028         if (td->bw_log)
2029                 _add_stat_to_log(td->bw_log, elapsed, td->o.log_max != 0);
2030         if (td->iops_log)
2031                 _add_stat_to_log(td->iops_log, elapsed, td->o.log_max != 0);
2032 }
2033
2034 void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs)
2035 {
2036         struct io_log *iolog;
2037
2038         if (!ddir_rw(ddir))
2039                 return;
2040
2041         iolog = agg_io_log[ddir];
2042         __add_log_sample(iolog, val, ddir, bs, mtime_since_genesis(), 0);
2043 }
2044
2045 static void add_clat_percentile_sample(struct thread_stat *ts,
2046                                 unsigned long usec, enum fio_ddir ddir)
2047 {
2048         unsigned int idx = plat_val_to_idx(usec);
2049         assert(idx < FIO_IO_U_PLAT_NR);
2050
2051         ts->io_u_plat[ddir][idx]++;
2052 }
2053
2054 void add_clat_sample(struct thread_data *td, enum fio_ddir ddir,
2055                      unsigned long usec, unsigned int bs, uint64_t offset)
2056 {
2057         struct thread_stat *ts = &td->ts;
2058
2059         if (!ddir_rw(ddir))
2060                 return;
2061
2062         td_io_u_lock(td);
2063
2064         add_stat_sample(&ts->clat_stat[ddir], usec);
2065
2066         if (td->clat_log)
2067                 add_log_sample(td, td->clat_log, usec, ddir, bs, offset);
2068
2069         if (ts->clat_percentiles)
2070                 add_clat_percentile_sample(ts, usec, ddir);
2071
2072         td_io_u_unlock(td);
2073 }
2074
2075 void add_slat_sample(struct thread_data *td, enum fio_ddir ddir,
2076                      unsigned long usec, unsigned int bs, uint64_t offset)
2077 {
2078         struct thread_stat *ts = &td->ts;
2079
2080         if (!ddir_rw(ddir))
2081                 return;
2082
2083         td_io_u_lock(td);
2084
2085         add_stat_sample(&ts->slat_stat[ddir], usec);
2086
2087         if (td->slat_log)
2088                 add_log_sample(td, td->slat_log, usec, ddir, bs, offset);
2089
2090         td_io_u_unlock(td);
2091 }
2092
2093 void add_lat_sample(struct thread_data *td, enum fio_ddir ddir,
2094                     unsigned long usec, unsigned int bs, uint64_t offset)
2095 {
2096         struct thread_stat *ts = &td->ts;
2097
2098         if (!ddir_rw(ddir))
2099                 return;
2100
2101         td_io_u_lock(td);
2102
2103         add_stat_sample(&ts->lat_stat[ddir], usec);
2104
2105         if (td->lat_log)
2106                 add_log_sample(td, td->lat_log, usec, ddir, bs, offset);
2107
2108         td_io_u_unlock(td);
2109 }
2110
2111 void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
2112                    struct timeval *t)
2113 {
2114         struct thread_stat *ts = &td->ts;
2115         unsigned long spent, rate;
2116
2117         if (!ddir_rw(ddir))
2118                 return;
2119
2120         spent = mtime_since(&td->bw_sample_time, t);
2121         if (spent < td->o.bw_avg_time)
2122                 return;
2123
2124         td_io_u_lock(td);
2125
2126         /*
2127          * Compute both read and write rates for the interval.
2128          */
2129         for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2130                 uint64_t delta;
2131
2132                 delta = td->this_io_bytes[ddir] - td->stat_io_bytes[ddir];
2133                 if (!delta)
2134                         continue; /* No entries for interval */
2135
2136                 if (spent)
2137                         rate = delta * 1000 / spent / 1024;
2138                 else
2139                         rate = 0;
2140
2141                 add_stat_sample(&ts->bw_stat[ddir], rate);
2142
2143                 if (td->bw_log)
2144                         add_log_sample(td, td->bw_log, rate, ddir, bs, 0);
2145
2146                 td->stat_io_bytes[ddir] = td->this_io_bytes[ddir];
2147         }
2148
2149         fio_gettime(&td->bw_sample_time, NULL);
2150         td_io_u_unlock(td);
2151 }
2152
2153 void add_iops_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs,
2154                      struct timeval *t)
2155 {
2156         struct thread_stat *ts = &td->ts;
2157         unsigned long spent, iops;
2158
2159         if (!ddir_rw(ddir))
2160                 return;
2161
2162         spent = mtime_since(&td->iops_sample_time, t);
2163         if (spent < td->o.iops_avg_time)
2164                 return;
2165
2166         td_io_u_lock(td);
2167
2168         /*
2169          * Compute both read and write rates for the interval.
2170          */
2171         for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) {
2172                 uint64_t delta;
2173
2174                 delta = td->this_io_blocks[ddir] - td->stat_io_blocks[ddir];
2175                 if (!delta)
2176                         continue; /* No entries for interval */
2177
2178                 if (spent)
2179                         iops = (delta * 1000) / spent;
2180                 else
2181                         iops = 0;
2182
2183                 add_stat_sample(&ts->iops_stat[ddir], iops);
2184
2185                 if (td->iops_log)
2186                         add_log_sample(td, td->iops_log, iops, ddir, bs, 0);
2187
2188                 td->stat_io_blocks[ddir] = td->this_io_blocks[ddir];
2189         }
2190
2191         fio_gettime(&td->iops_sample_time, NULL);
2192         td_io_u_unlock(td);
2193 }
2194
2195 void stat_init(void)
2196 {
2197         stat_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED);
2198 }
2199
2200 void stat_exit(void)
2201 {
2202         /*
2203          * When we have the mutex, we know out-of-band access to it
2204          * have ended.
2205          */
2206         fio_mutex_down(stat_mutex);
2207         fio_mutex_remove(stat_mutex);
2208 }
2209
2210 /*
2211  * Called from signal handler. Wake up status thread.
2212  */
2213 void show_running_run_stats(void)
2214 {
2215         helper_do_stat = 1;
2216         pthread_cond_signal(&helper_cond);
2217 }
2218
2219 uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u)
2220 {
2221         /* Ignore io_u's which span multiple blocks--they will just get
2222          * inaccurate counts. */
2223         int idx = (io_u->offset - io_u->file->file_offset)
2224                         / td->o.bs[DDIR_TRIM];
2225         uint32_t *info = &td->ts.block_infos[idx];
2226         assert(idx < td->ts.nr_block_infos);
2227         return info;
2228 }