#include <stdio.h> #include <string.h> #include <sys/time.h> #include <sys/types.h> #include <sys/stat.h> #include <dirent.h> #include <libgen.h> #include <math.h> #include "fio.h" #include "diskutil.h" #include "lib/ieee754.h" #include "json.h" #include "lib/getrusage.h" #include "idletime.h" struct fio_mutex *stat_mutex; void update_rusage_stat(struct thread_data *td) { struct thread_stat *ts = &td->ts; fio_getrusage(&td->ru_end); ts->usr_time += mtime_since(&td->ru_start.ru_utime, &td->ru_end.ru_utime); ts->sys_time += mtime_since(&td->ru_start.ru_stime, &td->ru_end.ru_stime); ts->ctx += td->ru_end.ru_nvcsw + td->ru_end.ru_nivcsw - (td->ru_start.ru_nvcsw + td->ru_start.ru_nivcsw); ts->minf += td->ru_end.ru_minflt - td->ru_start.ru_minflt; ts->majf += td->ru_end.ru_majflt - td->ru_start.ru_majflt; memcpy(&td->ru_start, &td->ru_end, sizeof(td->ru_end)); } /* * Given a latency, return the index of the corresponding bucket in * the structure tracking percentiles. * * (1) find the group (and error bits) that the value (latency) * belongs to by looking at its MSB. (2) find the bucket number in the * group by looking at the index bits. * */ static unsigned int plat_val_to_idx(unsigned int val) { unsigned int msb, error_bits, base, offset, idx; /* Find MSB starting from bit 0 */ if (val == 0) msb = 0; else msb = (sizeof(val)*8) - __builtin_clz(val) - 1; /* * MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use * all bits of the sample as index */ if (msb <= FIO_IO_U_PLAT_BITS) return val; /* Compute the number of error bits to discard*/ error_bits = msb - FIO_IO_U_PLAT_BITS; /* Compute the number of buckets before the group */ base = (error_bits + 1) << FIO_IO_U_PLAT_BITS; /* * Discard the error bits and apply the mask to find the * index for the buckets in the group */ offset = (FIO_IO_U_PLAT_VAL - 1) & (val >> error_bits); /* Make sure the index does not exceed (array size - 1) */ idx = (base + offset) < (FIO_IO_U_PLAT_NR - 1) ? (base + offset) : (FIO_IO_U_PLAT_NR - 1); return idx; } /* * Convert the given index of the bucket array to the value * represented by the bucket */ static unsigned int plat_idx_to_val(unsigned int idx) { unsigned int error_bits, k, base; assert(idx < FIO_IO_U_PLAT_NR); /* MSB <= (FIO_IO_U_PLAT_BITS-1), cannot be rounded off. Use * all bits of the sample as index */ if (idx < (FIO_IO_U_PLAT_VAL << 1)) return idx; /* Find the group and compute the minimum value of that group */ error_bits = (idx >> FIO_IO_U_PLAT_BITS) - 1; base = 1 << (error_bits + FIO_IO_U_PLAT_BITS); /* Find its bucket number of the group */ k = idx % FIO_IO_U_PLAT_VAL; /* Return the mean of the range of the bucket */ return base + ((k + 0.5) * (1 << error_bits)); } static int double_cmp(const void *a, const void *b) { const fio_fp64_t fa = *(const fio_fp64_t *) a; const fio_fp64_t fb = *(const fio_fp64_t *) b; int cmp = 0; if (fa.u.f > fb.u.f) cmp = 1; else if (fa.u.f < fb.u.f) cmp = -1; return cmp; } unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long nr, fio_fp64_t *plist, unsigned int **output, unsigned int *maxv, unsigned int *minv) { unsigned long sum = 0; unsigned int len, i, j = 0; unsigned int oval_len = 0; unsigned int *ovals = NULL; int is_last; *minv = -1U; *maxv = 0; len = 0; while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0) len++; if (!len) return 0; /* * 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 * isn't a worry. Also note that this does not work for NaN values. */ if (len > 1) qsort((void *)plist, len, sizeof(plist[0]), double_cmp); /* * 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); if (j == oval_len) { oval_len += 100; ovals = realloc(ovals, oval_len * sizeof(unsigned int)); } 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; j++; } } *output = ovals; return len; } /* * Find and display the p-th percentile of clat */ static void show_clat_percentiles(unsigned int *io_u_plat, unsigned long nr, fio_fp64_t *plist, unsigned int precision) { unsigned int len, j = 0, minv, maxv; unsigned int *ovals; int is_last, per_line, scale_down; char fmt[32]; len = calc_clat_percentiles(io_u_plat, nr, plist, &ovals, &maxv, &minv); if (!len) goto out; /* * 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 |"); } snprintf(fmt, sizeof(fmt), "%%1.%uf", precision); per_line = (80 - 7) / (precision + 14); for (j = 0; j < len; j++) { char fbuf[16], *ptr = fbuf; /* for formatting */ if (j != 0 && (j % per_line) == 0) log_info(" |"); /* end of the list */ is_last = (j == len - 1); if (plist[j].u.f < 10.0) ptr += sprintf(fbuf, " "); snprintf(ptr, sizeof(fbuf), fmt, 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 % per_line) == per_line - 1) /* for formatting */ log_info("\n"); } out: if (ovals) free(ovals); } int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max, double *mean, double *dev) { double n = (double) is->samples; if (n == 0) return 0; *min = is->min_val; *max = is->max_val; *mean = is->mean.u.f; if (n > 1.0) *dev = sqrt(is->S.u.f / (n - 1.0)); else *dev = 0; return 1; } void show_group_stats(struct group_run_stats *rs) { char *p1, *p2, *p3, *p4; const char *str[] = { " READ", " WRITE" , " TRIM"}; int i; log_info("\nRun status group %d (all jobs):\n", rs->groupid); for (i = 0; i < DDIR_RWDIR_CNT; i++) { const int i2p = is_power_of_2(rs->kb_base); if (!rs->max_run[i]) continue; p1 = num2str(rs->io_kb[i], 6, rs->kb_base, i2p, 8); p2 = num2str(rs->agg[i], 6, rs->kb_base, i2p, rs->unit_base); p3 = num2str(rs->min_bw[i], 6, rs->kb_base, i2p, rs->unit_base); p4 = num2str(rs->max_bw[i], 6, rs->kb_base, i2p, rs->unit_base); log_info("%s: io=%s, aggrb=%s/s, minb=%s/s, maxb=%s/s," " mint=%llumsec, maxt=%llumsec\n", rs->unified_rw_rep ? " MIXED" : str[i], p1, p2, p3, p4, (unsigned long long) rs->min_run[i], (unsigned long long) rs->max_run[i]); free(p1); free(p2); free(p3); free(p4); } } void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist) { int i; /* * Do depth distribution calculations */ for (i = 0; i < FIO_IO_U_MAP_NR; i++) { if (total) { io_u_dist[i] = (double) map[i] / (double) total; io_u_dist[i] *= 100.0; if (io_u_dist[i] < 0.1 && map[i]) io_u_dist[i] = 0.1; } else io_u_dist[i] = 0.0; } } static void stat_calc_lat(struct thread_stat *ts, double *dst, unsigned int *src, int nr) { unsigned long total = ddir_rw_sum(ts->total_io_u); int i; /* * Do latency distribution calculations */ for (i = 0; i < nr; i++) { if (total) { dst[i] = (double) src[i] / (double) total; dst[i] *= 100.0; if (dst[i] < 0.01 && src[i]) dst[i] = 0.01; } else dst[i] = 0.0; } } void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat) { stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR); } void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat) { stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR); } static void display_lat(const char *name, unsigned long min, unsigned long max, double mean, double dev) { const char *base = "(usec)"; char *minp, *maxp; if (!usec_to_msec(&min, &max, &mean, &dev)) base = "(msec)"; minp = num2str(min, 6, 1, 0, 0); maxp = num2str(max, 6, 1, 0, 0); log_info(" %s %s: min=%s, max=%s, avg=%5.02f," " stdev=%5.02f\n", name, base, minp, maxp, mean, dev); free(minp); free(maxp); } static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts, int ddir) { const char *str[] = { "read ", "write", "trim" }; unsigned long min, max, runt; unsigned long long bw, iops; double mean, dev; char *io_p, *bw_p, *iops_p; int i2p; assert(ddir_rw(ddir)); if (!ts->runtime[ddir]) return; i2p = is_power_of_2(rs->kb_base); runt = ts->runtime[ddir]; bw = (1000 * ts->io_bytes[ddir]) / runt; io_p = num2str(ts->io_bytes[ddir], 6, 1, i2p, 8); bw_p = num2str(bw, 6, 1, i2p, ts->unit_base); iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt; iops_p = num2str(iops, 6, 1, 0, 0); log_info(" %s: io=%s, bw=%s/s, iops=%s, runt=%6llumsec\n", rs->unified_rw_rep ? "mixed" : str[ddir], io_p, bw_p, iops_p, (unsigned long long) ts->runtime[ddir]); free(io_p); free(bw_p); free(iops_p); if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) display_lat("slat", min, max, mean, dev); if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) display_lat("clat", min, max, mean, dev); if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) display_lat(" lat", min, max, mean, dev); if (ts->clat_percentiles) { show_clat_percentiles(ts->io_u_plat[ddir], ts->clat_stat[ddir].samples, ts->percentile_list, ts->percentile_precision); } if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { double p_of_agg = 100.0, fkb_base = (double)rs->kb_base; const char *bw_str = (rs->unit_base == 1 ? "Kbit" : "KB"); if (rs->unit_base == 1) { min *= 8.0; max *= 8.0; mean *= 8.0; dev *= 8.0; } if (rs->agg[ddir]) { p_of_agg = mean * 100 / (double) rs->agg[ddir]; if (p_of_agg > 100.0) p_of_agg = 100.0; } if (mean > fkb_base * fkb_base) { min /= fkb_base; max /= fkb_base; mean /= fkb_base; dev /= fkb_base; bw_str = (rs->unit_base == 1 ? "Mbit" : "MB"); } log_info(" bw (%-4s/s): min=%5lu, max=%5lu, per=%3.2f%%," " avg=%5.02f, stdev=%5.02f\n", bw_str, min, max, p_of_agg, mean, dev); } } static int show_lat(double *io_u_lat, int nr, const char **ranges, const char *msg) { int new_line = 1, i, line = 0, shown = 0; for (i = 0; i < nr; i++) { if (io_u_lat[i] <= 0.0) continue; shown = 1; if (new_line) { if (line) log_info("\n"); log_info(" lat (%s) : ", msg); new_line = 0; line = 0; } if (line) log_info(", "); log_info("%s%3.2f%%", ranges[i], io_u_lat[i]); line++; if (line == 5) new_line = 1; } if (shown) log_info("\n"); return shown; } static void show_lat_u(double *io_u_lat_u) { const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=", "250=", "500=", "750=", "1000=", }; show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec"); } static void show_lat_m(double *io_u_lat_m) { const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=", "250=", "500=", "750=", "1000=", "2000=", ">=2000=", }; show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec"); } static void show_latencies(struct thread_stat *ts) { double io_u_lat_u[FIO_IO_U_LAT_U_NR]; double io_u_lat_m[FIO_IO_U_LAT_M_NR]; stat_calc_lat_u(ts, io_u_lat_u); stat_calc_lat_m(ts, io_u_lat_m); show_lat_u(io_u_lat_u); show_lat_m(io_u_lat_m); } static void show_thread_status_normal(struct thread_stat *ts, struct group_run_stats *rs) { double usr_cpu, sys_cpu; unsigned long runtime; double io_u_dist[FIO_IO_U_MAP_NR]; time_t time_p; char time_buf[32]; if (!ddir_rw_sum(ts->io_bytes) && !ddir_rw_sum(ts->total_io_u)) return; time(&time_p); os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf)); if (!ts->error) { log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d: %s", ts->name, ts->groupid, ts->members, ts->error, (int) ts->pid, time_buf); } else { log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d: %s", ts->name, ts->groupid, ts->members, ts->error, ts->verror, (int) ts->pid, time_buf); } if (strlen(ts->description)) log_info(" Description : [%s]\n", ts->description); if (ts->io_bytes[DDIR_READ]) show_ddir_status(rs, ts, DDIR_READ); if (ts->io_bytes[DDIR_WRITE]) show_ddir_status(rs, ts, DDIR_WRITE); if (ts->io_bytes[DDIR_TRIM]) show_ddir_status(rs, ts, DDIR_TRIM); show_latencies(ts); runtime = ts->total_run_time; if (runtime) { double runt = (double) runtime; usr_cpu = (double) ts->usr_time * 100 / runt; sys_cpu = (double) ts->sys_time * 100 / runt; } else { usr_cpu = 0; sys_cpu = 0; } log_info(" cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%llu," " majf=%llu, minf=%llu\n", usr_cpu, sys_cpu, (unsigned long long) ts->ctx, (unsigned long long) ts->majf, (unsigned long long) ts->minf); stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist); log_info(" IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%," " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], io_u_dist[4], io_u_dist[5], io_u_dist[6]); stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist); log_info(" submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%," " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], io_u_dist[4], io_u_dist[5], io_u_dist[6]); stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist); log_info(" complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%," " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], io_u_dist[4], io_u_dist[5], io_u_dist[6]); log_info(" issued : total=r=%llu/w=%llu/d=%llu," " short=r=%llu/w=%llu/d=%llu," " drop=r=%llu/w=%llu/d=%llu\n", (unsigned long long) ts->total_io_u[0], (unsigned long long) ts->total_io_u[1], (unsigned long long) ts->total_io_u[2], (unsigned long long) ts->short_io_u[0], (unsigned long long) ts->short_io_u[1], (unsigned long long) ts->short_io_u[2], (unsigned long long) ts->drop_io_u[0], (unsigned long long) ts->drop_io_u[1], (unsigned long long) ts->drop_io_u[2]); if (ts->continue_on_error) { log_info(" errors : total=%llu, first_error=%d/<%s>\n", (unsigned long long)ts->total_err_count, ts->first_error, strerror(ts->first_error)); } if (ts->latency_depth) { log_info(" latency : target=%llu, window=%llu, percentile=%.2f%%, depth=%u\n", (unsigned long long)ts->latency_target, (unsigned long long)ts->latency_window, ts->latency_percentile.u.f, ts->latency_depth); } } static void show_ddir_status_terse(struct thread_stat *ts, struct group_run_stats *rs, int ddir) { unsigned long min, max; unsigned long long bw, iops; unsigned int *ovals = NULL; double mean, dev; unsigned int len, minv, maxv; int i; assert(ddir_rw(ddir)); iops = bw = 0; if (ts->runtime[ddir]) { uint64_t runt = ts->runtime[ddir]; bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024; iops = (1000 * (uint64_t) ts->total_io_u[ddir]) / runt; } log_info(";%llu;%llu;%llu;%llu", (unsigned long long) ts->io_bytes[ddir] >> 10, bw, iops, (unsigned long long) ts->runtime[ddir]); if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) log_info(";%lu;%lu;%f;%f", min, max, mean, dev); else log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) log_info(";%lu;%lu;%f;%f", min, max, mean, dev); else log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); if (ts->clat_percentiles) { len = calc_clat_percentiles(ts->io_u_plat[ddir], ts->clat_stat[ddir].samples, ts->percentile_list, &ovals, &maxv, &minv); } else len = 0; for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { if (i >= len) { log_info(";0%%=0"); continue; } log_info(";%f%%=%u", ts->percentile_list[i].u.f, ovals[i]); } if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) log_info(";%lu;%lu;%f;%f", min, max, mean, dev); else log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); if (ovals) free(ovals); if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { double p_of_agg = 100.0; if (rs->agg[ddir]) { p_of_agg = mean * 100 / (double) rs->agg[ddir]; if (p_of_agg > 100.0) p_of_agg = 100.0; } log_info(";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev); } else log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0); } static void add_ddir_status_json(struct thread_stat *ts, struct group_run_stats *rs, int ddir, struct json_object *parent) { unsigned long min, max; unsigned long long bw; unsigned int *ovals = NULL; double mean, dev, iops; unsigned int len, minv, maxv; int i; const char *ddirname[] = {"read", "write", "trim"}; struct json_object *dir_object, *tmp_object, *percentile_object; char buf[120]; double p_of_agg = 100.0; assert(ddir_rw(ddir)); if (ts->unified_rw_rep && ddir != DDIR_READ) return; dir_object = json_create_object(); json_object_add_value_object(parent, ts->unified_rw_rep ? "mixed" : ddirname[ddir], dir_object); bw = 0; iops = 0.0; if (ts->runtime[ddir]) { uint64_t runt = ts->runtime[ddir]; bw = ((1000 * ts->io_bytes[ddir]) / runt) / 1024; iops = (1000.0 * (uint64_t) ts->total_io_u[ddir]) / runt; } json_object_add_value_int(dir_object, "io_bytes", ts->io_bytes[ddir] >> 10); json_object_add_value_int(dir_object, "bw", bw); json_object_add_value_float(dir_object, "iops", iops); json_object_add_value_int(dir_object, "runtime", ts->runtime[ddir]); json_object_add_value_int(dir_object, "total_ios", ts->total_io_u[ddir]); json_object_add_value_int(dir_object, "short_ios", ts->short_io_u[ddir]); json_object_add_value_int(dir_object, "drop_ios", ts->drop_io_u[ddir]); if (!calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) { min = max = 0; mean = dev = 0.0; } tmp_object = json_create_object(); json_object_add_value_object(dir_object, "slat", tmp_object); json_object_add_value_int(tmp_object, "min", min); json_object_add_value_int(tmp_object, "max", max); json_object_add_value_float(tmp_object, "mean", mean); json_object_add_value_float(tmp_object, "stddev", dev); if (!calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) { min = max = 0; mean = dev = 0.0; } tmp_object = json_create_object(); json_object_add_value_object(dir_object, "clat", tmp_object); json_object_add_value_int(tmp_object, "min", min); json_object_add_value_int(tmp_object, "max", max); json_object_add_value_float(tmp_object, "mean", mean); json_object_add_value_float(tmp_object, "stddev", dev); if (ts->clat_percentiles) { len = calc_clat_percentiles(ts->io_u_plat[ddir], ts->clat_stat[ddir].samples, ts->percentile_list, &ovals, &maxv, &minv); } else len = 0; percentile_object = json_create_object(); json_object_add_value_object(tmp_object, "percentile", percentile_object); for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { if (i >= len) { json_object_add_value_int(percentile_object, "0.00", 0); continue; } snprintf(buf, sizeof(buf), "%f", ts->percentile_list[i].u.f); json_object_add_value_int(percentile_object, (const char *)buf, ovals[i]); } if (!calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) { min = max = 0; mean = dev = 0.0; } tmp_object = json_create_object(); json_object_add_value_object(dir_object, "lat", tmp_object); json_object_add_value_int(tmp_object, "min", min); json_object_add_value_int(tmp_object, "max", max); json_object_add_value_float(tmp_object, "mean", mean); json_object_add_value_float(tmp_object, "stddev", dev); if (ovals) free(ovals); if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { if (rs->agg[ddir]) { p_of_agg = mean * 100 / (double) rs->agg[ddir]; if (p_of_agg > 100.0) p_of_agg = 100.0; } } else { min = max = 0; p_of_agg = mean = dev = 0.0; } json_object_add_value_int(dir_object, "bw_min", min); json_object_add_value_int(dir_object, "bw_max", max); json_object_add_value_float(dir_object, "bw_agg", p_of_agg); json_object_add_value_float(dir_object, "bw_mean", mean); json_object_add_value_float(dir_object, "bw_dev", dev); } static void show_thread_status_terse_v2(struct thread_stat *ts, struct group_run_stats *rs) { double io_u_dist[FIO_IO_U_MAP_NR]; double io_u_lat_u[FIO_IO_U_LAT_U_NR]; double io_u_lat_m[FIO_IO_U_LAT_M_NR]; double usr_cpu, sys_cpu; int i; /* General Info */ log_info("2;%s;%d;%d", ts->name, ts->groupid, ts->error); /* Log Read Status */ show_ddir_status_terse(ts, rs, DDIR_READ); /* Log Write Status */ show_ddir_status_terse(ts, rs, DDIR_WRITE); /* Log Trim Status */ show_ddir_status_terse(ts, rs, DDIR_TRIM); /* CPU Usage */ if (ts->total_run_time) { double runt = (double) ts->total_run_time; usr_cpu = (double) ts->usr_time * 100 / runt; sys_cpu = (double) ts->sys_time * 100 / runt; } else { usr_cpu = 0; sys_cpu = 0; } log_info(";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu, (unsigned long long) ts->ctx, (unsigned long long) ts->majf, (unsigned long long) ts->minf); /* Calc % distribution of IO depths, usecond, msecond latency */ stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist); stat_calc_lat_u(ts, io_u_lat_u); stat_calc_lat_m(ts, io_u_lat_m); /* Only show fixed 7 I/O depth levels*/ log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%", io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], io_u_dist[4], io_u_dist[5], io_u_dist[6]); /* Microsecond latency */ for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) log_info(";%3.2f%%", io_u_lat_u[i]); /* Millisecond latency */ for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) log_info(";%3.2f%%", io_u_lat_m[i]); /* Additional output if continue_on_error set - default off*/ if (ts->continue_on_error) log_info(";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error); log_info("\n"); /* Additional output if description is set */ if (strlen(ts->description)) log_info(";%s", ts->description); log_info("\n"); } static void show_thread_status_terse_v3_v4(struct thread_stat *ts, struct group_run_stats *rs, int ver) { double io_u_dist[FIO_IO_U_MAP_NR]; double io_u_lat_u[FIO_IO_U_LAT_U_NR]; double io_u_lat_m[FIO_IO_U_LAT_M_NR]; double usr_cpu, sys_cpu; int i; /* General Info */ log_info("%d;%s;%s;%d;%d", ver, fio_version_string, ts->name, ts->groupid, ts->error); /* Log Read Status */ show_ddir_status_terse(ts, rs, DDIR_READ); /* Log Write Status */ show_ddir_status_terse(ts, rs, DDIR_WRITE); /* Log Trim Status */ if (ver == 4) show_ddir_status_terse(ts, rs, DDIR_TRIM); /* CPU Usage */ if (ts->total_run_time) { double runt = (double) ts->total_run_time; usr_cpu = (double) ts->usr_time * 100 / runt; sys_cpu = (double) ts->sys_time * 100 / runt; } else { usr_cpu = 0; sys_cpu = 0; } log_info(";%f%%;%f%%;%llu;%llu;%llu", usr_cpu, sys_cpu, (unsigned long long) ts->ctx, (unsigned long long) ts->majf, (unsigned long long) ts->minf); /* Calc % distribution of IO depths, usecond, msecond latency */ stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist); stat_calc_lat_u(ts, io_u_lat_u); stat_calc_lat_m(ts, io_u_lat_m); /* Only show fixed 7 I/O depth levels*/ log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%", io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], io_u_dist[4], io_u_dist[5], io_u_dist[6]); /* Microsecond latency */ for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) log_info(";%3.2f%%", io_u_lat_u[i]); /* Millisecond latency */ for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) log_info(";%3.2f%%", io_u_lat_m[i]); /* disk util stats, if any */ show_disk_util(1, NULL); /* Additional output if continue_on_error set - default off*/ if (ts->continue_on_error) log_info(";%llu;%d", (unsigned long long) ts->total_err_count, ts->first_error); /* Additional output if description is set */ if (strlen(ts->description)) log_info(";%s", ts->description); log_info("\n"); } static struct json_object *show_thread_status_json(struct thread_stat *ts, struct group_run_stats *rs) { struct json_object *root, *tmp; double io_u_dist[FIO_IO_U_MAP_NR]; double io_u_lat_u[FIO_IO_U_LAT_U_NR]; double io_u_lat_m[FIO_IO_U_LAT_M_NR]; double usr_cpu, sys_cpu; int i; root = json_create_object(); json_object_add_value_string(root, "jobname", ts->name); json_object_add_value_int(root, "groupid", ts->groupid); json_object_add_value_int(root, "error", ts->error); add_ddir_status_json(ts, rs, DDIR_READ, root); add_ddir_status_json(ts, rs, DDIR_WRITE, root); add_ddir_status_json(ts, rs, DDIR_TRIM, root); /* CPU Usage */ if (ts->total_run_time) { double runt = (double) ts->total_run_time; usr_cpu = (double) ts->usr_time * 100 / runt; sys_cpu = (double) ts->sys_time * 100 / runt; } else { usr_cpu = 0; sys_cpu = 0; } json_object_add_value_float(root, "usr_cpu", usr_cpu); json_object_add_value_float(root, "sys_cpu", sys_cpu); json_object_add_value_int(root, "ctx", ts->ctx); json_object_add_value_int(root, "majf", ts->majf); json_object_add_value_int(root, "minf", ts->minf); /* Calc % distribution of IO depths, usecond, msecond latency */ stat_calc_dist(ts->io_u_map, ddir_rw_sum(ts->total_io_u), io_u_dist); stat_calc_lat_u(ts, io_u_lat_u); stat_calc_lat_m(ts, io_u_lat_m); tmp = json_create_object(); json_object_add_value_object(root, "iodepth_level", tmp); /* Only show fixed 7 I/O depth levels*/ for (i = 0; i < 7; i++) { char name[20]; if (i < 6) snprintf(name, 20, "%d", 1 << i); else snprintf(name, 20, ">=%d", 1 << i); json_object_add_value_float(tmp, (const char *)name, io_u_dist[i]); } tmp = json_create_object(); json_object_add_value_object(root, "latency_us", tmp); /* Microsecond latency */ for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { const char *ranges[] = { "2", "4", "10", "20", "50", "100", "250", "500", "750", "1000", }; json_object_add_value_float(tmp, ranges[i], io_u_lat_u[i]); } /* Millisecond latency */ tmp = json_create_object(); json_object_add_value_object(root, "latency_ms", tmp); for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) { const char *ranges[] = { "2", "4", "10", "20", "50", "100", "250", "500", "750", "1000", "2000", ">=2000", }; json_object_add_value_float(tmp, ranges[i], io_u_lat_m[i]); } /* Additional output if continue_on_error set - default off*/ if (ts->continue_on_error) { json_object_add_value_int(root, "total_err", ts->total_err_count); json_object_add_value_int(root, "first_error", ts->first_error); } if (ts->latency_depth) { json_object_add_value_int(root, "latency_depth", ts->latency_depth); json_object_add_value_int(root, "latency_target", ts->latency_target); json_object_add_value_float(root, "latency_percentile", ts->latency_percentile.u.f); json_object_add_value_int(root, "latency_window", ts->latency_window); } /* Additional output if description is set */ if (strlen(ts->description)) json_object_add_value_string(root, "desc", ts->description); return root; } static void show_thread_status_terse(struct thread_stat *ts, struct group_run_stats *rs) { if (terse_version == 2) show_thread_status_terse_v2(ts, rs); else if (terse_version == 3 || terse_version == 4) show_thread_status_terse_v3_v4(ts, rs, terse_version); else log_err("fio: bad terse version!? %d\n", terse_version); } struct json_object *show_thread_status(struct thread_stat *ts, struct group_run_stats *rs) { if (output_format == FIO_OUTPUT_TERSE) show_thread_status_terse(ts, rs); else if (output_format == FIO_OUTPUT_JSON) return show_thread_status_json(ts, rs); else show_thread_status_normal(ts, rs); return NULL; } static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr) { double mean, S; if (src->samples == 0) return; dst->min_val = min(dst->min_val, src->min_val); dst->max_val = max(dst->max_val, src->max_val); /* * Compute new mean and S after the merge * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance * #Parallel_algorithm> */ if (nr == 1) { mean = src->mean.u.f; S = src->S.u.f; } else { double delta = src->mean.u.f - dst->mean.u.f; mean = ((src->mean.u.f * src->samples) + (dst->mean.u.f * dst->samples)) / (dst->samples + src->samples); S = src->S.u.f + dst->S.u.f + pow(delta, 2.0) * (dst->samples * src->samples) / (dst->samples + src->samples); } dst->samples += src->samples; dst->mean.u.f = mean; 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 < DDIR_RWDIR_CNT; 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]; } if (!dst->kb_base) dst->kb_base = src->kb_base; if (!dst->unit_base) dst->unit_base = src->unit_base; } void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, int nr) { int l, k; for (l = 0; l < DDIR_RWDIR_CNT; l++) { if (!dst->unified_rw_rep) { 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]; } else { sum_stat(&dst->clat_stat[0], &src->clat_stat[l], nr); sum_stat(&dst->slat_stat[0], &src->slat_stat[l], nr); sum_stat(&dst->lat_stat[0], &src->lat_stat[l], nr); sum_stat(&dst->bw_stat[0], &src->bw_stat[l], nr); dst->io_bytes[0] += src->io_bytes[l]; if (dst->runtime[0] < src->runtime[l]) dst->runtime[0] = 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 < DDIR_RWDIR_CNT; k++) { if (!dst->unified_rw_rep) { dst->total_io_u[k] += src->total_io_u[k]; dst->short_io_u[k] += src->short_io_u[k]; dst->drop_io_u[k] += src->drop_io_u[k]; } else { dst->total_io_u[0] += src->total_io_u[k]; dst->short_io_u[0] += src->short_io_u[k]; dst->drop_io_u[0] += src->drop_io_u[k]; } } for (k = 0; k < DDIR_RWDIR_CNT; k++) { int m; for (m = 0; m < FIO_IO_U_PLAT_NR; m++) { /* HACK to prevent bus error in arm GCC 4.9 */ dst->io_u_plat[k][m]+=1; if (!dst->unified_rw_rep) dst->io_u_plat[k][m] += src->io_u_plat[k][m]; else dst->io_u_plat[0][m] += src->io_u_plat[k][m]; /* HACK to prevent bus error in arm GCC 4.9 */ dst->io_u_plat[k][m]-=1; } } 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) { int i; memset(gs, 0, sizeof(*gs)); for (i = 0; i < DDIR_RWDIR_CNT; i++) gs->min_bw[i] = gs->min_run[i] = ~0UL; } void init_thread_stat(struct thread_stat *ts) { int j; memset(ts, 0, sizeof(*ts)); for (j = 0; j < DDIR_RWDIR_CNT; j++) { ts->lat_stat[j].min_val = -1UL; ts->clat_stat[j].min_val = -1UL; ts->slat_stat[j].min_val = -1UL; ts->bw_stat[j].min_val = -1UL; } ts->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, nr_ts, last_ts, idx; int kb_base_warned = 0; int unit_base_warned = 0; struct json_object *root = NULL; struct json_array *array = NULL; runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1)); 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 * enabled, it's one-per-td. */ nr_ts = 0; last_ts = -1; for_each_td(td, i) { if (!td->o.group_reporting) { nr_ts++; continue; } if (last_ts == td->groupid) continue; last_ts = td->groupid; nr_ts++; } threadstats = malloc(nr_ts * sizeof(struct thread_stat)); for (i = 0; i < nr_ts; i++) init_thread_stat(&threadstats[i]); j = 0; last_ts = -1; idx = 0; for_each_td(td, i) { if (idx && (!td->o.group_reporting || (td->o.group_reporting && last_ts != td->groupid))) { idx = 0; j++; } last_ts = td->groupid; ts = &threadstats[j]; ts->clat_percentiles = td->o.clat_percentiles; ts->percentile_precision = td->o.percentile_precision; memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list)); idx++; ts->members++; if (ts->groupid == -1) { /* * These are per-group shared already */ strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE - 1); if (td->o.description) strncpy(ts->description, td->o.description, FIO_JOBDESC_SIZE - 1); else memset(ts->description, 0, FIO_JOBDESC_SIZE); /* * If multiple entries in this group, this is * the first member. */ ts->thread_number = td->thread_number; ts->groupid = td->groupid; /* * first pid in group, not very useful... */ ts->pid = td->pid; ts->kb_base = td->o.kb_base; ts->unit_base = td->o.unit_base; ts->unified_rw_rep = td->o.unified_rw_rep; } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) { log_info("fio: kb_base differs for jobs in group, using" " %u as the base\n", ts->kb_base); kb_base_warned = 1; } else if (ts->unit_base != td->o.unit_base && !unit_base_warned) { log_info("fio: unit_base differs for jobs in group, using" " %u as the base\n", ts->unit_base); unit_base_warned = 1; } ts->continue_on_error = td->o.continue_on_error; ts->total_err_count += td->total_err_count; ts->first_error = td->first_error; if (!ts->error) { if (!td->error && td->o.continue_on_error && td->first_error) { ts->error = td->first_error; ts->verror[sizeof(ts->verror) - 1] = '\0'; strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1); } else if (td->error) { ts->error = td->error; ts->verror[sizeof(ts->verror) - 1] = '\0'; strncpy(ts->verror, td->verror, sizeof(ts->verror) - 1); } } ts->latency_depth = td->latency_qd; ts->latency_target = td->o.latency_target; ts->latency_percentile = td->o.latency_percentile; ts->latency_window = td->o.latency_window; sum_thread_stats(ts, &td->ts, idx); } for (i = 0; i < nr_ts; i++) { unsigned long long bw; ts = &threadstats[i]; rs = &runstats[ts->groupid]; rs->kb_base = ts->kb_base; rs->unit_base = ts->unit_base; rs->unified_rw_rep += ts->unified_rw_rep; for (j = 0; j < DDIR_RWDIR_CNT; j++) { if (!ts->runtime[j]) continue; if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j]) rs->min_run[j] = ts->runtime[j]; if (ts->runtime[j] > rs->max_run[j]) rs->max_run[j] = ts->runtime[j]; bw = 0; if (ts->runtime[j]) { unsigned long runt = ts->runtime[j]; unsigned long long kb; kb = ts->io_bytes[j] / rs->kb_base; bw = kb * 1000 / runt; } if (bw < rs->min_bw[j]) rs->min_bw[j] = bw; if (bw > rs->max_bw[j]) rs->max_bw[j] = bw; rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base; } } for (i = 0; i < groupid + 1; i++) { int ddir; rs = &runstats[i]; for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) { if (rs->max_run[ddir]) rs->agg[ddir] = (rs->io_kb[ddir] * 1000) / rs->max_run[ddir]; } } /* * don't overwrite last signal output */ if (output_format == FIO_OUTPUT_NORMAL) log_info("\n"); else if (output_format == FIO_OUTPUT_JSON) { char time_buf[32]; time_t time_p; time(&time_p); os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf)); time_buf[strlen(time_buf) - 1] = '\0'; root = json_create_object(); json_object_add_value_string(root, "fio version", fio_version_string); json_object_add_value_int(root, "timestamp", time_p); json_object_add_value_string(root, "time", time_buf); array = json_create_array(); json_object_add_value_array(root, "jobs", array); } for (i = 0; i < nr_ts; i++) { ts = &threadstats[i]; rs = &runstats[ts->groupid]; if (is_backend) fio_server_send_ts(ts, rs); else if (output_format == FIO_OUTPUT_TERSE) show_thread_status_terse(ts, rs); else if (output_format == FIO_OUTPUT_JSON) { struct json_object *tmp = show_thread_status_json(ts, rs); json_array_add_value_object(array, tmp); } else show_thread_status_normal(ts, rs); } if (output_format == FIO_OUTPUT_JSON) { /* disk util stats, if any */ show_disk_util(1, root); show_idle_prof_stats(FIO_OUTPUT_JSON, root); json_print_object(root); log_info("\n"); json_free_object(root); } for (i = 0; i < groupid + 1; i++) { rs = &runstats[i]; rs->groupid = i; if (is_backend) fio_server_send_gs(rs); else if (output_format == FIO_OUTPUT_NORMAL) show_group_stats(rs); } if (is_backend) fio_server_send_du(); else if (output_format == FIO_OUTPUT_NORMAL) { show_disk_util(0, NULL); show_idle_prof_stats(FIO_OUTPUT_NORMAL, NULL); } if ( !(output_format == FIO_OUTPUT_TERSE) && append_terse_output) { log_info("\nAdditional Terse Output:\n"); for (i = 0; i < nr_ts; i++) { ts = &threadstats[i]; rs = &runstats[ts->groupid]; show_thread_status_terse(ts, rs); } } log_info_flush(); free(runstats); free(threadstats); } void show_run_stats(void) { fio_mutex_down(stat_mutex); __show_run_stats(); fio_mutex_up(stat_mutex); } void __show_running_run_stats(void) { struct thread_data *td; unsigned long long *rt; struct timeval tv; int i; fio_mutex_down(stat_mutex); rt = malloc(thread_number * sizeof(unsigned long long)); fio_gettime(&tv, NULL); for_each_td(td, i) { rt[i] = mtime_since(&td->start, &tv); if (td_read(td) && td->io_bytes[DDIR_READ]) td->ts.runtime[DDIR_READ] += rt[i]; if (td_write(td) && td->io_bytes[DDIR_WRITE]) td->ts.runtime[DDIR_WRITE] += rt[i]; if (td_trim(td) && td->io_bytes[DDIR_TRIM]) td->ts.runtime[DDIR_TRIM] += rt[i]; td->update_rusage = 1; td->ts.io_bytes[DDIR_READ] = td->io_bytes[DDIR_READ]; td->ts.io_bytes[DDIR_WRITE] = td->io_bytes[DDIR_WRITE]; td->ts.io_bytes[DDIR_TRIM] = td->io_bytes[DDIR_TRIM]; td->ts.total_run_time = mtime_since(&td->epoch, &tv); } for_each_td(td, i) { if (td->runstate >= TD_EXITED) continue; if (td->rusage_sem) { td->update_rusage = 1; fio_mutex_down(td->rusage_sem); } td->update_rusage = 0; } __show_run_stats(); for_each_td(td, i) { if (td_read(td) && td->io_bytes[DDIR_READ]) td->ts.runtime[DDIR_READ] -= rt[i]; if (td_write(td) && td->io_bytes[DDIR_WRITE]) td->ts.runtime[DDIR_WRITE] -= rt[i]; if (td_trim(td) && td->io_bytes[DDIR_TRIM]) td->ts.runtime[DDIR_TRIM] -= rt[i]; } free(rt); fio_mutex_up(stat_mutex); } static int status_interval_init; static struct timeval status_time; static int status_file_disabled; #define FIO_STATUS_FILE "fio-dump-status" static int check_status_file(void) { struct stat sb; const char *temp_dir; char fio_status_file_path[PATH_MAX]; if (status_file_disabled) return 0; temp_dir = getenv("TMPDIR"); if (temp_dir == NULL) { temp_dir = getenv("TEMP"); if (temp_dir && strlen(temp_dir) >= PATH_MAX) temp_dir = NULL; } if (temp_dir == NULL) temp_dir = "/tmp"; snprintf(fio_status_file_path, sizeof(fio_status_file_path), "%s/%s", temp_dir, FIO_STATUS_FILE); if (stat(fio_status_file_path, &sb)) return 0; if (unlink(fio_status_file_path) < 0) { log_err("fio: failed to unlink %s: %s\n", fio_status_file_path, strerror(errno)); log_err("fio: disabling status file updates\n"); status_file_disabled = 1; } return 1; } void check_for_running_stats(void) { if (status_interval) { if (!status_interval_init) { fio_gettime(&status_time, NULL); status_interval_init = 1; } else if (mtime_since_now(&status_time) >= status_interval) { show_running_run_stats(); fio_gettime(&status_time, NULL); return; } } if (check_status_file()) { show_running_run_stats(); return; } } static inline void add_stat_sample(struct io_stat *is, unsigned long data) { double val = data; double delta; if (data > is->max_val) is->max_val = data; if (data < is->min_val) is->min_val = data; delta = val - is->mean.u.f; if (delta) { is->mean.u.f += delta / (is->samples + 1.0); is->S.u.f += delta * (val - is->mean.u.f); } is->samples++; } static void __add_log_sample(struct io_log *iolog, unsigned long val, enum fio_ddir ddir, unsigned int bs, unsigned long t, uint64_t offset) { uint64_t nr_samples = iolog->nr_samples; struct io_sample *s; if (iolog->disabled) return; if (!iolog->nr_samples) iolog->avg_last = t; if (iolog->nr_samples == iolog->max_samples) { size_t new_size; void *new_log; new_size = 2 * iolog->max_samples * log_entry_sz(iolog); if (iolog->log_gz && (new_size > iolog->log_gz)) { if (iolog_flush(iolog, 0)) { log_err("fio: failed flushing iolog! Will stop logging.\n"); iolog->disabled = 1; return; } nr_samples = iolog->nr_samples; } else { new_log = realloc(iolog->log, new_size); if (!new_log) { log_err("fio: failed extending iolog! Will stop logging.\n"); iolog->disabled = 1; return; } iolog->log = new_log; iolog->max_samples <<= 1; } } s = get_sample(iolog, nr_samples); s->val = val; s->time = t; io_sample_set_ddir(iolog, s, ddir); s->bs = bs; if (iolog->log_offset) { struct io_sample_offset *so = (void *) s; so->offset = offset; } iolog->nr_samples++; } static inline void reset_io_stat(struct io_stat *ios) { ios->max_val = ios->min_val = ios->samples = 0; ios->mean.u.f = ios->S.u.f = 0; } void reset_io_stats(struct thread_data *td) { struct thread_stat *ts = &td->ts; int i, j; for (i = 0; i < DDIR_RWDIR_CNT; i++) { reset_io_stat(&ts->clat_stat[i]); reset_io_stat(&ts->slat_stat[i]); reset_io_stat(&ts->lat_stat[i]); reset_io_stat(&ts->bw_stat[i]); reset_io_stat(&ts->iops_stat[i]); ts->io_bytes[i] = 0; ts->runtime[i] = 0; for (j = 0; j < FIO_IO_U_PLAT_NR; j++) ts->io_u_plat[i][j] = 0; } for (i = 0; i < FIO_IO_U_MAP_NR; i++) { ts->io_u_map[i] = 0; ts->io_u_submit[i] = 0; ts->io_u_complete[i] = 0; ts->io_u_lat_u[i] = 0; ts->io_u_lat_m[i] = 0; ts->total_submit = 0; ts->total_complete = 0; } for (i = 0; i < 3; i++) { ts->total_io_u[i] = 0; ts->short_io_u[i] = 0; ts->drop_io_u[i] = 0; } } static void _add_stat_to_log(struct io_log *iolog, unsigned long elapsed) { /* * Note an entry in the log. Use the mean from the logged samples, * making sure to properly round up. Only write a log entry if we * had actual samples done. */ if (iolog->avg_window[DDIR_READ].samples) { unsigned long mr; mr = iolog->avg_window[DDIR_READ].mean.u.f + 0.50; __add_log_sample(iolog, mr, DDIR_READ, 0, elapsed, 0); } if (iolog->avg_window[DDIR_WRITE].samples) { unsigned long mw; mw = iolog->avg_window[DDIR_WRITE].mean.u.f + 0.50; __add_log_sample(iolog, mw, DDIR_WRITE, 0, elapsed, 0); } if (iolog->avg_window[DDIR_TRIM].samples) { unsigned long mw; mw = iolog->avg_window[DDIR_TRIM].mean.u.f + 0.50; __add_log_sample(iolog, mw, DDIR_TRIM, 0, elapsed, 0); } reset_io_stat(&iolog->avg_window[DDIR_READ]); reset_io_stat(&iolog->avg_window[DDIR_WRITE]); reset_io_stat(&iolog->avg_window[DDIR_TRIM]); } static void add_log_sample(struct thread_data *td, struct io_log *iolog, unsigned long val, enum fio_ddir ddir, unsigned int bs, uint64_t offset) { unsigned long elapsed, this_window; if (!ddir_rw(ddir)) return; elapsed = mtime_since_now(&td->epoch); /* * If no time averaging, just add the log sample. */ if (!iolog->avg_msec) { __add_log_sample(iolog, val, ddir, bs, elapsed, offset); return; } /* * Add the sample. If the time period has passed, then * add that entry to the log and clear. */ add_stat_sample(&iolog->avg_window[ddir], val); /* * If period hasn't passed, adding the above sample is all we * need to do. */ this_window = elapsed - iolog->avg_last; if (this_window < iolog->avg_msec) return; _add_stat_to_log(iolog, elapsed); iolog->avg_last = elapsed; } void finalize_logs(struct thread_data *td) { unsigned long elapsed; elapsed = mtime_since_now(&td->epoch); if (td->clat_log) _add_stat_to_log(td->clat_log, elapsed); if (td->slat_log) _add_stat_to_log(td->slat_log, elapsed); if (td->lat_log) _add_stat_to_log(td->lat_log, elapsed); if (td->bw_log) _add_stat_to_log(td->bw_log, elapsed); if (td->iops_log) _add_stat_to_log(td->iops_log, elapsed); } void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs) { struct io_log *iolog; if (!ddir_rw(ddir)) return; iolog = agg_io_log[ddir]; __add_log_sample(iolog, val, ddir, bs, mtime_since_genesis(), 0); } static void add_clat_percentile_sample(struct thread_stat *ts, unsigned long usec, enum fio_ddir ddir) { unsigned int idx = plat_val_to_idx(usec); assert(idx < FIO_IO_U_PLAT_NR); ts->io_u_plat[ddir][idx]++; } void add_clat_sample(struct thread_data *td, enum fio_ddir ddir, unsigned long usec, unsigned int bs, uint64_t offset) { struct thread_stat *ts = &td->ts; if (!ddir_rw(ddir)) return; add_stat_sample(&ts->clat_stat[ddir], usec); if (td->clat_log) add_log_sample(td, td->clat_log, usec, ddir, bs, offset); if (ts->clat_percentiles) add_clat_percentile_sample(ts, usec, ddir); } void add_slat_sample(struct thread_data *td, enum fio_ddir ddir, unsigned long usec, unsigned int bs, uint64_t offset) { struct thread_stat *ts = &td->ts; if (!ddir_rw(ddir)) return; add_stat_sample(&ts->slat_stat[ddir], usec); if (td->slat_log) add_log_sample(td, td->slat_log, usec, ddir, bs, offset); } void add_lat_sample(struct thread_data *td, enum fio_ddir ddir, unsigned long usec, unsigned int bs, uint64_t offset) { struct thread_stat *ts = &td->ts; if (!ddir_rw(ddir)) return; add_stat_sample(&ts->lat_stat[ddir], usec); if (td->lat_log) add_log_sample(td, td->lat_log, usec, ddir, bs, offset); } void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs, struct timeval *t) { struct thread_stat *ts = &td->ts; unsigned long spent, rate; if (!ddir_rw(ddir)) return; spent = mtime_since(&td->bw_sample_time, t); if (spent < td->o.bw_avg_time) return; /* * Compute both read and write rates for the interval. */ for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) { uint64_t delta; delta = td->this_io_bytes[ddir] - td->stat_io_bytes[ddir]; if (!delta) continue; /* No entries for interval */ if (spent) rate = delta * 1000 / spent / 1024; else rate = 0; add_stat_sample(&ts->bw_stat[ddir], rate); if (td->bw_log) add_log_sample(td, td->bw_log, rate, ddir, bs, 0); td->stat_io_bytes[ddir] = td->this_io_bytes[ddir]; } fio_gettime(&td->bw_sample_time, NULL); } void add_iops_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs, 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; /* * Compute both read and write rates for the interval. */ for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) { uint64_t delta; delta = td->this_io_blocks[ddir] - td->stat_io_blocks[ddir]; if (!delta) continue; /* No entries for interval */ if (spent) iops = (delta * 1000) / spent; else iops = 0; add_stat_sample(&ts->iops_stat[ddir], iops); if (td->iops_log) add_log_sample(td, td->iops_log, iops, ddir, bs, 0); td->stat_io_blocks[ddir] = td->this_io_blocks[ddir]; } fio_gettime(&td->iops_sample_time, NULL); } void stat_init(void) { stat_mutex = fio_mutex_init(FIO_MUTEX_UNLOCKED); } void stat_exit(void) { /* * When we have the mutex, we know out-of-band access to it * have ended. */ fio_mutex_down(stat_mutex); fio_mutex_remove(stat_mutex); } /* * Called from signal handler. Wake up status thread. */ void show_running_run_stats(void) { helper_do_stat = 1; pthread_cond_signal(&helper_cond); }