X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=stat.c;h=4fe0dbd3dd65a9a129c9a6951bfe9e9bdae3754a;hp=ccab0c70ca855f0ce94a6ad80767b31d4a44b129;hb=b8c82a464aa31d847dad7fad924840d0e55d82b3;hpb=756867bd127cfa1fb27ae2d4ba973af8cb341f13 diff --git a/stat.c b/stat.c index ccab0c70..4fe0dbd3 100644 --- a/stat.c +++ b/stat.c @@ -6,7 +6,6 @@ #include #include #include -#include #include "fio.h" @@ -17,17 +16,18 @@ static dev_t last_dev; /* * Cheesy number->string conversion, complete with carry rounding error. */ -static char *num2str(unsigned long num, int maxlen, int base) +static char *num2str(unsigned long num, int maxlen, int base, int pow2) { - /* - * could be passed in for 10^3 base, but every caller expects - * 2^10 base right now. - */ - const unsigned int thousand = 1024; - char postfix[] = { 'K', 'M', 'G', 'P', 'E' }; + char postfix[] = { ' ', 'K', 'M', 'G', 'P', 'E' }; + unsigned int thousand; char *buf; int i; + if (pow2) + thousand = 1024; + else + thousand = 1000; + buf = malloc(128); for (i = 0; base > 1; i++) @@ -38,8 +38,10 @@ static char *num2str(unsigned long num, int maxlen, int base) len = sprintf(buf, "%'lu", num); if (len <= maxlen) { - buf[len] = postfix[i]; - buf[len + 1] = '\0'; + if (i >= 1) { + buf[len] = postfix[i]; + buf[len + 1] = '\0'; + } return buf; } @@ -239,21 +241,13 @@ static int find_block_dir(dev_t dev, char *path) return found; } -void init_disk_util(struct thread_data *td) +static void __init_disk_util(struct thread_data *td, struct fio_file *f) { - struct fio_file *f; struct stat st; char foo[PATH_MAX], tmp[PATH_MAX]; dev_t dev; char *p; - if (!td->do_disk_util || (td->io_ops->flags & FIO_DISKLESSIO)) - return; - - /* - * Just use the same file, they are on the same device. - */ - f = &td->files[0]; if (!stat(f->file_name, &st)) { if (S_ISBLK(st.st_mode)) dev = st.st_rdev; @@ -308,12 +302,25 @@ void init_disk_util(struct thread_data *td) sprintf(foo, "%s", tmp); } - if (td->ioscheduler) + if (td->o.ioscheduler && !td->sysfs_root) td->sysfs_root = strdup(foo); disk_util_add(dev, foo); } +void init_disk_util(struct thread_data *td) +{ + struct fio_file *f; + unsigned int i; + + if (!td->o.do_disk_util || + (td->io_ops->flags & (FIO_DISKLESSIO | FIO_NODISKUTIL))) + return; + + for_each_file(td, f, i) + __init_disk_util(td, f); +} + void disk_util_timer_arm(void) { itimer.it_value.tv_sec = 0; @@ -362,18 +369,18 @@ static void show_group_stats(struct group_run_stats *rs, int id) const char *ddir_str[] = { " READ", " WRITE" }; int i; - fprintf(f_out, "\nRun status group %d (all jobs):\n", id); + log_info("\nRun status group %d (all jobs):\n", id); for (i = 0; i <= DDIR_WRITE; i++) { if (!rs->max_run[i]) continue; - p1 = num2str(rs->io_kb[i], 6, 1); - p2 = num2str(rs->agg[i], 6, 1); - p3 = num2str(rs->min_bw[i], 6, 1); - p4 = num2str(rs->max_bw[i], 6, 1); + p1 = num2str(rs->io_kb[i], 6, 1000, 1); + p2 = num2str(rs->agg[i], 6, 1000, 1); + p3 = num2str(rs->min_bw[i], 6, 1000, 1); + p4 = num2str(rs->max_bw[i], 6, 1000, 1); - fprintf(f_out, "%s: io=%siB, aggrb=%siB/s, minb=%siB/s, maxb=%siB/s, mint=%llumsec, maxt=%llumsec\n", ddir_str[i], p1, p2, p3, p4, rs->min_run[0], rs->max_run[0]); + log_info("%s: io=%siB, aggrb=%siB/s, minb=%siB/s, maxb=%siB/s, mint=%llumsec, maxt=%llumsec\n", ddir_str[i], p1, p2, p3, p4, rs->min_run[i], rs->max_run[i]); free(p1); free(p2); @@ -389,7 +396,7 @@ static void show_disk_util(void) struct disk_util *du; double util; - fprintf(f_out, "\nDisk stats (read/write):\n"); + log_info("\nDisk stats (read/write):\n"); list_for_each(entry, &disk_list) { du = list_entry(entry, struct disk_util, list); @@ -399,7 +406,7 @@ static void show_disk_util(void) if (util > 100.0) util = 100.0; - fprintf(f_out, " %s: ios=%u/%u, merge=%u/%u, ticks=%u/%u, in_queue=%u, util=%3.2f%%\n", du->name, dus->ios[0], dus->ios[1], dus->merges[0], dus->merges[1], dus->ticks[0], dus->ticks[1], dus->time_in_queue, util); + log_info(" %s: ios=%u/%u, merge=%u/%u, ticks=%u/%u, in_queue=%u, util=%3.2f%%\n", du->name, dus->ios[0], dus->ios[1], dus->merges[0], dus->merges[1], dus->ticks[0], dus->ticks[1], dus->time_in_queue, util); } /* @@ -413,38 +420,70 @@ static void show_disk_util(void) } } +#define ts_total_io_u(ts) \ + ((ts)->total_io_u[0] + (ts)->total_io_u[1]) + +static void stat_calc_dist(struct thread_stat *ts, double *io_u_dist) +{ + int i; + + /* + * Do depth distribution calculations + */ + for (i = 0; i < FIO_IO_U_MAP_NR; i++) { + io_u_dist[i] = (double) ts->io_u_map[i] / (double) ts_total_io_u(ts); + io_u_dist[i] *= 100.0; + } +} + +static void stat_calc_lat(struct thread_stat *ts, double *io_u_lat) +{ + int i; + + /* + * Do latency distribution calculations + */ + for (i = 0; i < FIO_IO_U_LAT_NR; i++) { + io_u_lat[i] = (double) ts->io_u_lat[i] / (double) ts_total_io_u(ts); + io_u_lat[i] *= 100.0; + } +} + static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts, int ddir) { const char *ddir_str[] = { "read ", "write" }; unsigned long min, max; - unsigned long long bw; + unsigned long long bw, iops; double mean, dev; - char *io_p, *bw_p; + char *io_p, *bw_p, *iops_p; if (!ts->runtime[ddir]) return; bw = ts->io_bytes[ddir] / ts->runtime[ddir]; - io_p = num2str(ts->io_bytes[ddir] >> 10, 6, 1); - bw_p = num2str(bw, 6, 1); + iops = (1000 * ts->total_io_u[ddir]) / ts->runtime[ddir]; + io_p = num2str(ts->io_bytes[ddir] >> 10, 6, 1000, 1); + bw_p = num2str(bw, 6, 1000, 1); + iops_p = num2str(iops, 6, 1, 0); - fprintf(f_out, " %s: io=%siB, bw=%siB/s, runt=%6lumsec\n", ddir_str[ddir], io_p, bw_p, ts->runtime[ddir]); + log_info(" %s: io=%siB, bw=%siB/s, iops=%s, runt=%6lumsec\n", ddir_str[ddir], io_p, bw_p, iops_p, ts->runtime[ddir]); free(io_p); free(bw_p); + free(iops_p); if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) - fprintf(f_out, " slat (msec): min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", min, max, mean, dev); + log_info(" slat (msec): min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", min, max, mean, dev); if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) - fprintf(f_out, " clat (msec): min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", min, max, mean, dev); + log_info(" clat (msec): min=%5lu, max=%5lu, avg=%5.02f, stdev=%5.02f\n", min, max, mean, dev); if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { double p_of_agg; p_of_agg = mean * 100 / (double) rs->agg[ddir]; - fprintf(f_out, " bw (KiB/s) : min=%5lu, max=%5lu, per=%3.2f%%, avg=%5.02f, stdev=%5.02f\n", min, max, p_of_agg, mean, dev); + log_info(" bw (KiB/s) : min=%5lu, max=%5lu, per=%3.2f%%, avg=%5.02f, stdev=%5.02f\n", min, max, p_of_agg, mean, dev); } } @@ -455,15 +494,17 @@ static void show_thread_status(struct thread_stat *ts, unsigned long runtime; double io_u_dist[FIO_IO_U_MAP_NR]; double io_u_lat[FIO_IO_U_LAT_NR]; - int i; if (!(ts->io_bytes[0] + ts->io_bytes[1])) return; if (!ts->error) - fprintf(f_out, "%s: (groupid=%d): err=%2d: pid=%d\n", ts->name, ts->groupid, ts->error, ts->pid); + log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d\n", ts->name, ts->groupid, ts->members, ts->error, ts->pid); else - fprintf(f_out, "%s: (groupid=%d): err=%2d (%s): pid=%d\n", ts->name, ts->groupid, ts->error, ts->verror, ts->pid); + log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d\n", ts->name, ts->groupid, ts->members, ts->error, ts->verror, ts->pid); + + if (ts->description) + log_info(" Description : [%s]\n", ts->description); if (ts->io_bytes[DDIR_READ]) show_ddir_status(rs, ts, DDIR_READ); @@ -481,31 +522,15 @@ static void show_thread_status(struct thread_stat *ts, sys_cpu = 0; } - fprintf(f_out, " cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu\n", usr_cpu, sys_cpu, ts->ctx); - - /* - * Do depth distribution calculations - */ - for (i = 0; i < FIO_IO_U_MAP_NR; i++) { - io_u_dist[i] = (double) ts->io_u_map[i] / (double) ts->total_io_u; - io_u_dist[i] *= 100.0; - } - - fprintf(f_out, " 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]); + log_info(" cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu\n", usr_cpu, sys_cpu, ts->ctx); - /* - * Do latency distribution calculations - */ - for (i = 0; i < FIO_IO_U_LAT_NR; i++) { - io_u_lat[i] = (double) ts->io_u_lat[i] / (double) ts->total_io_u; - io_u_lat[i] *= 100.0; - } + stat_calc_dist(ts, io_u_dist); + stat_calc_lat(ts, io_u_lat); - fprintf(f_out, " lat (msec): 2=%3.1f%%, 4=%3.1f%%, 10=%3.1f%%, 20=%3.1f%%, 50=%3.1f%%, 100=%3.1f%%\n", io_u_lat[0], io_u_lat[1], io_u_lat[2], io_u_lat[3], io_u_lat[4], io_u_lat[5]); - fprintf(f_out, " lat (msec): 250=%3.1f%%, 500=%3.1f%%, 750=%3.1f%%, 1000=%3.1f%%, >=2000=%3.1f%%\n", io_u_lat[6], io_u_lat[7], io_u_lat[8], io_u_lat[9], io_u_lat[10]); + 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]); - if (ts->description) - fprintf(f_out, "%s\n", ts->description); + log_info(" lat (msec): 2=%3.1f%%, 4=%3.1f%%, 10=%3.1f%%, 20=%3.1f%%, 50=%3.1f%%, 100=%3.1f%%\n", io_u_lat[0], io_u_lat[1], io_u_lat[2], io_u_lat[3], io_u_lat[4], io_u_lat[5]); + log_info(" lat (msec): 250=%3.1f%%, 500=%3.1f%%, 750=%3.1f%%, 1000=%3.1f%%, >=2000=%3.1f%%\n", io_u_lat[6], io_u_lat[7], io_u_lat[8], io_u_lat[9], io_u_lat[10]); } static void show_ddir_status_terse(struct thread_stat *ts, @@ -519,34 +544,36 @@ static void show_ddir_status_terse(struct thread_stat *ts, if (ts->runtime[ddir]) bw = ts->io_bytes[ddir] / ts->runtime[ddir]; - fprintf(f_out, ",%llu,%llu,%lu", ts->io_bytes[ddir] >> 10, bw, ts->runtime[ddir]); + log_info(";%llu;%llu;%lu", ts->io_bytes[ddir] >> 10, bw, ts->runtime[ddir]); if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) - fprintf(f_out, ",%lu,%lu,%f,%f", min, max, mean, dev); + log_info(";%lu;%lu;%f;%f", min, max, mean, dev); else - fprintf(f_out, ",%lu,%lu,%f,%f", 0UL, 0UL, 0.0, 0.0); + log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) - fprintf(f_out, ",%lu,%lu,%f,%f", min, max, mean, dev); + log_info(";%lu;%lu;%f;%f", min, max, mean, dev); else - fprintf(f_out, ",%lu,%lu,%f,%f", 0UL, 0UL, 0.0, 0.0); + log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { double p_of_agg; p_of_agg = mean * 100 / (double) rs->agg[ddir]; - fprintf(f_out, ",%lu,%lu,%f%%,%f,%f", min, max, p_of_agg, mean, dev); + log_info(";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev); } else - fprintf(f_out, ",%lu,%lu,%f%%,%f,%f", 0UL, 0UL, 0.0, 0.0, 0.0); + log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0); } static void show_thread_status_terse(struct thread_stat *ts, struct group_run_stats *rs) { + double io_u_dist[FIO_IO_U_MAP_NR]; + double io_u_lat[FIO_IO_U_LAT_NR]; double usr_cpu, sys_cpu; - fprintf(f_out, "%s,%d,%d", ts->name, ts->groupid, ts->error); + log_info("%s;%d;%d", ts->name, ts->groupid, ts->error); show_ddir_status_terse(ts, rs, 0); show_ddir_status_terse(ts, rs, 1); @@ -561,10 +588,23 @@ static void show_thread_status_terse(struct thread_stat *ts, sys_cpu = 0; } - fprintf(f_out, ",%f%%,%f%%,%lu\n", usr_cpu, sys_cpu, ts->ctx); + log_info(";%f%%;%f%%;%lu", usr_cpu, sys_cpu, ts->ctx); + + stat_calc_dist(ts, io_u_dist); + stat_calc_lat(ts, io_u_lat); + + 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]); + + log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%\n", io_u_lat[0], io_u_lat[1], io_u_lat[2], io_u_lat[3], io_u_lat[4], io_u_lat[5]); + log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%", io_u_lat[6], io_u_lat[7], io_u_lat[8], io_u_lat[9], io_u_lat[10]); + + if (ts->description) + log_info(";%s", ts->description); + + log_info("\n"); } -static void __sum_stat(struct io_stat *dst, struct io_stat *src, int nr) +static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr) { double mean, S; @@ -580,26 +620,20 @@ static void __sum_stat(struct io_stat *dst, struct io_stat *src, int nr) mean = src->mean; S = src->S; } else { - mean = ((src->mean * (double) nr) + dst->mean) / ((double) nr + 1.0); - S = ((src->S * (double) nr) + dst->S) / ((double) nr + 1.0); + mean = ((src->mean * (double) (nr - 1)) + dst->mean) / ((double) nr); + S = ((src->S * (double) (nr - 1)) + dst->S) / ((double) nr); } dst->mean = mean; dst->S = S; } -static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr) -{ - __sum_stat(&dst[DDIR_READ], &src[DDIR_READ], nr); - __sum_stat(&dst[DDIR_WRITE], &src[DDIR_WRITE], nr); -} - void show_run_stats(void) { struct group_run_stats *runstats, *rs; struct thread_data *td; struct thread_stat *threadstats, *ts; - int i, j, k, nr_ts, last_ts, members; + int i, j, k, l, nr_ts, last_ts, idx; runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1)); @@ -618,7 +652,7 @@ void show_run_stats(void) nr_ts = 0; last_ts = -1; for_each_td(td, i) { - if (!td->group_reporting) { + if (!td->o.group_reporting) { nr_ts++; continue; } @@ -635,37 +669,61 @@ void show_run_stats(void) ts = &threadstats[i]; memset(ts, 0, sizeof(*ts)); - ts->clat_stat[0].min_val = -1UL; - ts->clat_stat[1].min_val = -1UL; - ts->slat_stat[0].min_val = -1UL; - ts->slat_stat[1].min_val = -1UL; - ts->bw_stat[0].min_val = -1UL; - ts->bw_stat[1].min_val = -1UL; + for (j = 0; j <= DDIR_WRITE; j++) { + ts->clat_stat[j].min_val = -1UL; + ts->slat_stat[j].min_val = -1UL; + ts->bw_stat[j].min_val = -1UL; + } + ts->groupid = -1; } j = 0; last_ts = -1; - members = 0; + 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]; - members++; + idx++; + ts->members++; - if (!ts->groupid) { - ts->name = td->name; - ts->description = td->description; - ts->error = td->error; + if (ts->groupid == -1) { + /* + * These are per-group shared already + */ + ts->name = td->o.name; + ts->description = td->o.description; ts->groupid = td->groupid; + + /* + * first pid in group, not very useful... + */ ts->pid = td->pid; + } + + if (td->error && !ts->error) { + ts->error = td->error; ts->verror = td->verror; } - sum_stat(ts->clat_stat, td->ts.clat_stat, members); - sum_stat(ts->slat_stat, td->ts.slat_stat, members); - sum_stat(ts->bw_stat, td->ts.bw_stat, members); + for (l = 0; l <= DDIR_WRITE; l++) { + sum_stat(&ts->clat_stat[l], &td->ts.clat_stat[l], idx); + sum_stat(&ts->slat_stat[l], &td->ts.slat_stat[l], idx); + sum_stat(&ts->bw_stat[l], &td->ts.bw_stat[l], idx); - ts->stat_io_bytes[0] += td->ts.stat_io_bytes[0]; - ts->stat_io_bytes[1] += td->ts.stat_io_bytes[1]; + ts->stat_io_bytes[l] += td->ts.stat_io_bytes[l]; + ts->io_bytes[l] += td->ts.io_bytes[l]; + + if (ts->runtime[l] < td->ts.runtime[l]) + ts->runtime[l] = td->ts.runtime[l]; + } ts->usr_time += td->ts.usr_time; ts->sys_time += td->ts.sys_time; @@ -676,65 +734,36 @@ void show_run_stats(void) for (k = 0; k < FIO_IO_U_LAT_NR; k++) ts->io_u_lat[k] += td->ts.io_u_lat[k]; - ts->total_io_u += td->ts.total_io_u; - ts->io_bytes[0] += td->ts.io_bytes[0]; - ts->io_bytes[1] += td->ts.io_bytes[1]; - - if (ts->runtime[0] < td->ts.runtime[0]) - ts->runtime[0] = td->ts.runtime[0]; - if (ts->runtime[1] < td->ts.runtime[1]) - ts->runtime[1] = td->ts.runtime[1]; + for (k = 0; k <= DDIR_WRITE; k++) + ts->total_io_u[k] += td->ts.total_io_u[k]; ts->total_run_time += td->ts.total_run_time; - - if (!td->group_reporting) { - members = 0; - j++; - continue; - } - if (last_ts == td->groupid) - continue; - - if (last_ts != -1) { - members = 0; - j++; - } - - last_ts = td->groupid; } for (i = 0; i < nr_ts; i++) { - unsigned long long rbw, wbw; + unsigned long long bw; ts = &threadstats[i]; rs = &runstats[ts->groupid]; - if (ts->runtime[0] < rs->min_run[0] || !rs->min_run[0]) - rs->min_run[0] = ts->runtime[0]; - if (ts->runtime[0] > rs->max_run[0]) - rs->max_run[0] = ts->runtime[0]; - if (ts->runtime[1] < rs->min_run[1] || !rs->min_run[1]) - rs->min_run[1] = ts->runtime[1]; - if (ts->runtime[1] > rs->max_run[1]) - rs->max_run[1] = ts->runtime[1]; - - rbw = wbw = 0; - if (ts->runtime[0]) - rbw = td->io_bytes[0] / (unsigned long long) ts->runtime[0]; - if (ts->runtime[1]) - wbw = td->io_bytes[1] / (unsigned long long) ts->runtime[1]; - - if (rbw < rs->min_bw[0]) - rs->min_bw[0] = rbw; - if (wbw < rs->min_bw[1]) - rs->min_bw[1] = wbw; - if (rbw > rs->max_bw[0]) - rs->max_bw[0] = rbw; - if (wbw > rs->max_bw[1]) - rs->max_bw[1] = wbw; - - rs->io_kb[0] += ts->io_bytes[0] >> 10; - rs->io_kb[1] += ts->io_bytes[1] >> 10; + for (j = 0; j <= DDIR_WRITE; 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]) + bw = ts->io_bytes[j] / (unsigned long long) ts->runtime[j]; + 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] >> 10; + } } for (i = 0; i < groupid + 1; i++) { @@ -776,7 +805,7 @@ void show_run_stats(void) static inline void add_stat_sample(struct io_stat *is, unsigned long data) { double val = data; - double delta, n; + double delta; if (data > is->max_val) is->max_val = data; @@ -784,8 +813,7 @@ static inline void add_stat_sample(struct io_stat *is, unsigned long data) is->min_val = data; delta = val - is->mean; - n = is->samples + 1.0; - is->mean += delta / n; + is->mean += delta / (is->samples + 1.0); is->S += delta * (val - is->mean); is->samples++; @@ -849,7 +877,7 @@ void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned long spent = mtime_since(&ts->stat_sample_time[ddir], t); unsigned long rate; - if (spent < td->bw_avg_time) + if (spent < td->o.bw_avg_time) return; rate = (td->this_io_bytes[ddir] - ts->stat_io_bytes[ddir]) / spent;