| #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 "ieee754.h" |
| |
| void update_rusage_stat(struct thread_data *td) |
| { |
| struct thread_stat *ts = &td->ts; |
| |
| getrusage(RUSAGE_SELF, &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; |
| } |
| |
| /* |
| * 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 long sum = 0; |
| unsigned int len, i, j = 0; |
| int is_last = 0; |
| |
| len = 0; |
| while (len < FIO_IO_U_LIST_MAX_LEN && plist[len].u.f != 0.0) |
| len++; |
| |
| /* |
| * 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); |
| |
| log_info(" clat percentiles (usec) :"); |
| |
| for (i = 0; i < FIO_IO_U_PLAT_NR && !is_last; i++) { |
| sum += io_u_plat[i]; |
| while (sum >= (plist[j].u.f / 100.0 * nr)) { |
| assert(plist[j].u.f <= 100.0); |
| |
| /* for formatting */ |
| if (j != 0 && (j % 4) == 0) |
| log_info(" "); |
| |
| /* end of the list */ |
| is_last = (j == len - 1); |
| |
| log_info(" %2.2fth=%u%c", plist[j].u.f, |
| plat_idx_to_val(i), (is_last? '\n' : ',')); |
| |
| if (is_last) |
| break; |
| |
| if (j % 4 == 3) /* for formatting */ |
| log_info("\n"); |
| j++; |
| } |
| } |
| } |
| |
| static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max, |
| double *mean, double *dev) |
| { |
| double n = is->samples; |
| |
| if (is->samples == 0) |
| return 0; |
| |
| *min = is->min_val; |
| *max = is->max_val; |
| |
| n = (double) is->samples; |
| *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 *ddir_str[] = { " READ", " WRITE" }; |
| int i; |
| |
| log_info("\nRun status group %d (all jobs):\n", rs->groupid); |
| |
| for (i = 0; i <= DDIR_WRITE; i++) { |
| const int i2p = is_power_of_2(rs->kb_base); |
| |
| if (!rs->max_run[i]) |
| continue; |
| |
| p1 = num2str(rs->io_kb[i], 6, rs->kb_base, i2p); |
| p2 = num2str(rs->agg[i], 6, rs->kb_base, i2p); |
| p3 = num2str(rs->min_bw[i], 6, rs->kb_base, i2p); |
| p4 = num2str(rs->max_bw[i], 6, rs->kb_base, i2p); |
| |
| log_info("%s: io=%sB, aggrb=%sB/s, minb=%sB/s, maxb=%sB/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); |
| free(p3); |
| free(p4); |
| } |
| } |
| |
| #define ts_total_io_u(ts) \ |
| ((ts)->total_io_u[0] + (ts)->total_io_u[1]) |
| |
| static 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 = ts_total_io_u(ts); |
| 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; |
| } |
| } |
| |
| static 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); |
| } |
| |
| static 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 int usec_to_msec(unsigned long *min, unsigned long *max, double *mean, |
| double *dev) |
| { |
| if (*min > 1000 && *max > 1000 && *mean > 1000.0 && *dev > 1000.0) { |
| *min /= 1000; |
| *max /= 1000; |
| *mean /= 1000.0; |
| *dev /= 1000.0; |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| 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, 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); |
| bw_p = num2str(bw, 6, 1, i2p); |
| |
| iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt; |
| iops_p = num2str(iops, 6, 1, 0); |
| |
| log_info(" %s: io=%sB, bw=%sB/s, iops=%s, runt=%6llumsec\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)) { |
| const char *base = "(usec)"; |
| char *minp, *maxp; |
| |
| if (!usec_to_msec(&min, &max, &mean, &dev)) |
| base = "(msec)"; |
| |
| minp = num2str(min, 6, 1, 0); |
| maxp = num2str(max, 6, 1, 0); |
| |
| log_info(" slat %s: min=%s, max=%s, avg=%5.02f," |
| " stdev=%5.02f\n", base, minp, maxp, mean, dev); |
| |
| free(minp); |
| free(maxp); |
| } |
| if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) { |
| const char *base = "(usec)"; |
| char *minp, *maxp; |
| |
| if (!usec_to_msec(&min, &max, &mean, &dev)) |
| base = "(msec)"; |
| |
| minp = num2str(min, 6, 1, 0); |
| maxp = num2str(max, 6, 1, 0); |
| |
| log_info(" clat %s: min=%s, max=%s, avg=%5.02f," |
| " stdev=%5.02f\n", base, minp, maxp, mean, dev); |
| |
| free(minp); |
| free(maxp); |
| } |
| if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) { |
| const char *base = "(usec)"; |
| char *minp, *maxp; |
| |
| if (!usec_to_msec(&min, &max, &mean, &dev)) |
| base = "(msec)"; |
| |
| minp = num2str(min, 6, 1, 0); |
| maxp = num2str(max, 6, 1, 0); |
| |
| log_info(" lat %s: min=%s, max=%s, avg=%5.02f," |
| " stdev=%5.02f\n", base, minp, maxp, mean, dev); |
| |
| free(minp); |
| free(maxp); |
| } |
| if (ts->clat_percentiles) { |
| show_clat_percentiles(ts->io_u_plat[ddir], |
| ts->clat_stat[ddir].samples, |
| ts->percentile_list); |
| } |
| if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { |
| double p_of_agg; |
| |
| p_of_agg = mean * 100 / (double) rs->agg[ddir]; |
| log_info(" bw (KB/s) : min=%5lu, max=%5lu, per=%3.2f%%," |
| " avg=%5.02f, stdev=%5.02f\n", min, max, p_of_agg, |
| mean, dev); |
| } |
| } |
| |
| static void show_lat(double *io_u_lat, int nr, const char **ranges, |
| const char *msg) |
| { |
| int new_line = 1, i, line = 0; |
| |
| for (i = 0; i < nr; i++) { |
| if (io_u_lat[i] <= 0.0) |
| continue; |
| 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; |
| } |
| } |
| |
| 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(double *io_u_lat_u, double *io_u_lat_m) |
| { |
| show_lat_u(io_u_lat_u); |
| log_info("\n"); |
| show_lat_m(io_u_lat_m); |
| log_info("\n"); |
| } |
| |
| void show_thread_status(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]; |
| double io_u_lat_u[FIO_IO_U_LAT_U_NR]; |
| double io_u_lat_m[FIO_IO_U_LAT_M_NR]; |
| |
| if (!(ts->io_bytes[0] + ts->io_bytes[1]) && |
| !(ts->total_io_u[0] + ts->total_io_u[1])) |
| return; |
| |
| if (!ts->error) { |
| log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d\n", |
| ts->name, ts->groupid, ts->members, |
| ts->error, (int) ts->pid); |
| } else { |
| log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d\n", |
| ts->name, ts->groupid, ts->members, |
| ts->error, ts->verror, (int) 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); |
| if (ts->io_bytes[DDIR_WRITE]) |
| show_ddir_status(rs, ts, DDIR_WRITE); |
| |
| 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=%lu, majf=%lu," |
| " minf=%lu\n", usr_cpu, sys_cpu, ts->ctx, ts->majf, ts->minf); |
| |
| stat_calc_dist(ts->io_u_map, ts_total_io_u(ts), 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 r/w/d: total=%lu/%lu/%lu, short=%lu/%lu/%lu\n", |
| ts->total_io_u[0], ts->total_io_u[1], |
| ts->total_io_u[2], |
| ts->short_io_u[0], ts->short_io_u[1], |
| ts->short_io_u[2]); |
| stat_calc_lat_u(ts, io_u_lat_u); |
| stat_calc_lat_m(ts, io_u_lat_m); |
| show_latencies(io_u_lat_u, io_u_lat_m); |
| if (ts->continue_on_error) { |
| log_info(" errors : total=%lu, first_error=%d/<%s>\n", |
| ts->total_err_count, |
| ts->first_error, |
| strerror(ts->first_error)); |
| } |
| } |
| |
| 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; |
| double mean, dev; |
| |
| assert(ddir_rw(ddir)); |
| |
| bw = 0; |
| if (ts->runtime[ddir]) |
| bw = ts->io_bytes[ddir] / ts->runtime[ddir]; |
| |
| log_info(";%llu;%llu;%llu", ts->io_bytes[ddir] >> 10, bw, |
| 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 (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 (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { |
| double p_of_agg; |
| |
| p_of_agg = mean * 100 / (double) rs->agg[ddir]; |
| 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); |
| } |
| |
| #define FIO_TERSE_VERSION "2" |
| |
| 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_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("%s;%s;%d;%d", FIO_TERSE_VERSION, ts->name, ts->groupid, |
| ts->error); |
| /* Log Read Status */ |
| show_ddir_status_terse(ts, rs, 0); |
| /* Log Write Status */ |
| show_ddir_status_terse(ts, rs, 1); |
| |
| /* 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%%;%lu;%lu;%lu", usr_cpu, sys_cpu, ts->ctx, ts->majf, |
| ts->minf); |
| |
| /* Calc % distribution of IO depths, usecond, msecond latency */ |
| stat_calc_dist(ts->io_u_map, ts_total_io_u(ts), 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(";%lu;%d", ts->total_err_count, ts->first_error); |
| log_info("\n"); |
| |
| /* Additional output if description is set */ |
| 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) |
| { |
| 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 < 2; i++) { |
| if (dst->max_run[i] < src->max_run[i]) |
| dst->max_run[i] = src->max_run[i]; |
| if (dst->min_run[i] && dst->min_run[i] > src->min_run[i]) |
| dst->min_run[i] = src->min_run[i]; |
| if (dst->max_bw[i] < src->max_bw[i]) |
| dst->max_bw[i] = src->max_bw[i]; |
| if (dst->min_bw[i] && dst->min_bw[i] > src->min_bw[i]) |
| dst->min_bw[i] = src->min_bw[i]; |
| |
| dst->io_kb[i] += src->io_kb[i]; |
| dst->agg[i] += src->agg[i]; |
| } |
| |
| } |
| |
| void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, int nr) |
| { |
| int l, k; |
| |
| for (l = 0; l <= DDIR_WRITE; l++) { |
| sum_stat(&dst->clat_stat[l], &src->clat_stat[l], nr); |
| sum_stat(&dst->slat_stat[l], &src->slat_stat[l], nr); |
| sum_stat(&dst->lat_stat[l], &src->lat_stat[l], nr); |
| sum_stat(&dst->bw_stat[l], &src->bw_stat[l], nr); |
| |
| dst->io_bytes[l] += src->io_bytes[l]; |
| |
| if (dst->runtime[l] < src->runtime[l]) |
| dst->runtime[l] = src->runtime[l]; |
| } |
| |
| dst->usr_time += src->usr_time; |
| dst->sys_time += src->sys_time; |
| dst->ctx += src->ctx; |
| dst->majf += src->majf; |
| dst->minf += src->minf; |
| |
| for (k = 0; k < FIO_IO_U_MAP_NR; k++) |
| dst->io_u_map[k] += src->io_u_map[k]; |
| for (k = 0; k < FIO_IO_U_MAP_NR; k++) |
| dst->io_u_submit[k] += src->io_u_submit[k]; |
| for (k = 0; k < FIO_IO_U_MAP_NR; k++) |
| dst->io_u_complete[k] += src->io_u_complete[k]; |
| for (k = 0; k < FIO_IO_U_LAT_U_NR; k++) |
| dst->io_u_lat_u[k] += src->io_u_lat_u[k]; |
| for (k = 0; k < FIO_IO_U_LAT_M_NR; k++) |
| dst->io_u_lat_m[k] += src->io_u_lat_m[k]; |
| |
| for (k = 0; k <= 2; k++) { |
| dst->total_io_u[k] += src->total_io_u[k]; |
| dst->short_io_u[k] += src->short_io_u[k]; |
| } |
| |
| for (k = 0; k <= DDIR_WRITE; k++) { |
| int m; |
| for (m = 0; m < FIO_IO_U_PLAT_NR; m++) |
| dst->io_u_plat[k][m] += src->io_u_plat[k][m]; |
| } |
| |
| dst->total_run_time += src->total_run_time; |
| dst->total_submit += src->total_submit; |
| dst->total_complete += src->total_complete; |
| } |
| |
| void init_group_run_stat(struct group_run_stats *gs) |
| { |
| memset(gs, 0, sizeof(*gs)); |
| gs->min_bw[0] = gs->min_run[0] = ~0UL; |
| gs->min_bw[1] = gs->min_run[1] = ~0UL; |
| } |
| |
| void init_thread_stat(struct thread_stat *ts) |
| { |
| int j; |
| |
| memset(ts, 0, sizeof(*ts)); |
| |
| for (j = 0; j <= DDIR_WRITE; j++) { |
| ts->lat_stat[j].min_val = -1UL; |
| ts->clat_stat[j].min_val = -1UL; |
| ts->slat_stat[j].min_val = -1UL; |
| ts->bw_stat[j].min_val = -1UL; |
| } |
| ts->groupid = -1; |
| } |
| |
| void show_run_stats(void) |
| { |
| struct group_run_stats *runstats, *rs; |
| struct thread_data *td; |
| struct thread_stat *threadstats, *ts; |
| int i, j, nr_ts, last_ts, idx; |
| int kb_base_warned = 0; |
| |
| runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1)); |
| |
| for (i = 0; i < groupid + 1; i++) |
| 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; |
| if (td->o.overwrite_plist) |
| memcpy(ts->percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list)); |
| else |
| memcpy(ts->percentile_list, def_percentile_list, sizeof(def_percentile_list)); |
| |
| idx++; |
| ts->members++; |
| |
| if (ts->groupid == -1) { |
| /* |
| * These are per-group shared already |
| */ |
| strncpy(ts->name, td->o.name, FIO_JOBNAME_SIZE); |
| if (td->o.description) |
| strncpy(ts->description, td->o.description, |
| FIO_JOBNAME_SIZE); |
| else |
| memset(ts->description, 0, FIO_JOBNAME_SIZE); |
| |
| ts->groupid = td->groupid; |
| |
| /* |
| * first pid in group, not very useful... |
| */ |
| ts->pid = td->pid; |
| |
| ts->kb_base = td->o.kb_base; |
| } 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; |
| } |
| |
| 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; |
| strcpy(ts->verror, td->verror); |
| } else if (td->error) { |
| ts->error = td->error; |
| strcpy(ts->verror, td->verror); |
| } |
| } |
| |
| 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; |
| |
| 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]) { |
| unsigned long runt; |
| |
| runt = ts->runtime[j]; |
| bw = ts->io_bytes[j] / 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++) { |
| unsigned long max_run[2]; |
| |
| rs = &runstats[i]; |
| max_run[0] = rs->max_run[0]; |
| max_run[1] = rs->max_run[1]; |
| |
| if (rs->max_run[0]) |
| rs->agg[0] = (rs->io_kb[0] * 1000) / max_run[0]; |
| if (rs->max_run[1]) |
| rs->agg[1] = (rs->io_kb[1] * 1000) / max_run[1]; |
| } |
| |
| /* |
| * don't overwrite last signal output |
| */ |
| if (!terse_output) |
| log_info("\n"); |
| |
| 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 (terse_output) |
| show_thread_status_terse(ts, rs); |
| else |
| show_thread_status(ts, rs); |
| } |
| |
| if (!terse_output) { |
| for (i = 0; i < groupid + 1; i++) { |
| rs = &runstats[i]; |
| |
| rs->groupid = i; |
| if (is_backend) |
| fio_server_send_gs(rs); |
| else |
| show_group_stats(rs); |
| } |
| |
| show_disk_util(); |
| } |
| |
| free(runstats); |
| free(threadstats); |
| } |
| |
| 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) |
| { |
| const int nr_samples = iolog->nr_samples; |
| |
| if (iolog->nr_samples == iolog->max_samples) { |
| int new_size = sizeof(struct io_sample) * iolog->max_samples*2; |
| |
| iolog->log = realloc(iolog->log, new_size); |
| iolog->max_samples <<= 1; |
| } |
| |
| iolog->log[nr_samples].val = val; |
| iolog->log[nr_samples].time = t; |
| iolog->log[nr_samples].ddir = ddir; |
| iolog->log[nr_samples].bs = bs; |
| iolog->nr_samples++; |
| } |
| |
| static void add_log_sample(struct thread_data *td, struct io_log *iolog, |
| unsigned long val, enum fio_ddir ddir, |
| unsigned int bs) |
| { |
| if (!ddir_rw(ddir)) |
| return; |
| |
| __add_log_sample(iolog, val, ddir, bs, mtime_since_now(&td->epoch)); |
| } |
| |
| 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()); |
| } |
| |
| 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) |
| { |
| 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); |
| |
| 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) |
| { |
| 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); |
| } |
| |
| void add_lat_sample(struct thread_data *td, enum fio_ddir ddir, |
| unsigned long usec, unsigned int bs) |
| { |
| 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); |
| } |
| |
| 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; |
| |
| rate = (td->this_io_bytes[ddir] - td->stat_io_bytes[ddir]) * |
| 1000 / spent / 1024; |
| add_stat_sample(&ts->bw_stat[ddir], rate); |
| |
| if (td->bw_log) |
| add_log_sample(td, td->bw_log, rate, ddir, bs); |
| |
| fio_gettime(&td->bw_sample_time, NULL); |
| td->stat_io_bytes[ddir] = td->this_io_bytes[ddir]; |
| } |
| |
| void add_iops_sample(struct thread_data *td, enum fio_ddir ddir, |
| struct timeval *t) |
| { |
| struct thread_stat *ts = &td->ts; |
| unsigned long spent, iops; |
| |
| if (!ddir_rw(ddir)) |
| return; |
| |
| spent = mtime_since(&td->iops_sample_time, t); |
| if (spent < td->o.iops_avg_time) |
| return; |
| |
| iops = ((td->this_io_blocks[ddir] - td->stat_io_blocks[ddir]) * 1000) / spent; |
| |
| add_stat_sample(&ts->iops_stat[ddir], iops); |
| |
| if (td->iops_log) { |
| assert(iops); |
| add_log_sample(td, td->iops_log, iops, ddir, 0); |
| } |
| |
| fio_gettime(&td->iops_sample_time, NULL); |
| td->stat_io_blocks[ddir] = td->this_io_blocks[ddir]; |
| } |