| | 1 | #include <stdio.h> |
| | 2 | #include <string.h> |
| | 3 | #include <sys/time.h> |
| | 4 | #include <sys/types.h> |
| | 5 | #include <sys/stat.h> |
| | 6 | #include <dirent.h> |
| | 7 | #include <libgen.h> |
| | 8 | #include <math.h> |
| | 9 | |
| | 10 | #include "fio.h" |
| | 11 | #include "diskutil.h" |
| | 12 | |
| | 13 | void update_rusage_stat(struct thread_data *td) |
| | 14 | { |
| | 15 | struct thread_stat *ts = &td->ts; |
| | 16 | |
| | 17 | getrusage(RUSAGE_SELF, &ts->ru_end); |
| | 18 | |
| | 19 | ts->usr_time += mtime_since(&ts->ru_start.ru_utime, |
| | 20 | &ts->ru_end.ru_utime); |
| | 21 | ts->sys_time += mtime_since(&ts->ru_start.ru_stime, |
| | 22 | &ts->ru_end.ru_stime); |
| | 23 | ts->ctx += ts->ru_end.ru_nvcsw + ts->ru_end.ru_nivcsw |
| | 24 | - (ts->ru_start.ru_nvcsw + ts->ru_start.ru_nivcsw); |
| | 25 | ts->minf += ts->ru_end.ru_minflt - ts->ru_start.ru_minflt; |
| | 26 | ts->majf += ts->ru_end.ru_majflt - ts->ru_start.ru_majflt; |
| | 27 | |
| | 28 | memcpy(&ts->ru_start, &ts->ru_end, sizeof(ts->ru_end)); |
| | 29 | } |
| | 30 | |
| | 31 | static int calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max, |
| | 32 | double *mean, double *dev) |
| | 33 | { |
| | 34 | double n = is->samples; |
| | 35 | |
| | 36 | if (is->samples == 0) |
| | 37 | return 0; |
| | 38 | |
| | 39 | *min = is->min_val; |
| | 40 | *max = is->max_val; |
| | 41 | |
| | 42 | n = (double) is->samples; |
| | 43 | *mean = is->mean; |
| | 44 | |
| | 45 | if (n > 1.0) |
| | 46 | *dev = sqrt(is->S / (n - 1.0)); |
| | 47 | else |
| | 48 | *dev = 0; |
| | 49 | |
| | 50 | return 1; |
| | 51 | } |
| | 52 | |
| | 53 | static void show_group_stats(struct group_run_stats *rs, int id) |
| | 54 | { |
| | 55 | char *p1, *p2, *p3, *p4; |
| | 56 | const char *ddir_str[] = { " READ", " WRITE" }; |
| | 57 | int i; |
| | 58 | |
| | 59 | log_info("\nRun status group %d (all jobs):\n", id); |
| | 60 | |
| | 61 | for (i = 0; i <= DDIR_WRITE; i++) { |
| | 62 | const int i2p = is_power_of_2(rs->kb_base); |
| | 63 | |
| | 64 | if (!rs->max_run[i]) |
| | 65 | continue; |
| | 66 | |
| | 67 | p1 = num2str(rs->io_kb[i], 6, rs->kb_base, i2p); |
| | 68 | p2 = num2str(rs->agg[i], 6, rs->kb_base, i2p); |
| | 69 | p3 = num2str(rs->min_bw[i], 6, rs->kb_base, i2p); |
| | 70 | p4 = num2str(rs->max_bw[i], 6, rs->kb_base, i2p); |
| | 71 | |
| | 72 | log_info("%s: io=%sB, aggrb=%sB/s, minb=%sB/s, maxb=%sB/s," |
| | 73 | " mint=%llumsec, maxt=%llumsec\n", ddir_str[i], p1, p2, |
| | 74 | p3, p4, rs->min_run[i], |
| | 75 | rs->max_run[i]); |
| | 76 | |
| | 77 | free(p1); |
| | 78 | free(p2); |
| | 79 | free(p3); |
| | 80 | free(p4); |
| | 81 | } |
| | 82 | } |
| | 83 | |
| | 84 | #define ts_total_io_u(ts) \ |
| | 85 | ((ts)->total_io_u[0] + (ts)->total_io_u[1]) |
| | 86 | |
| | 87 | static void stat_calc_dist(unsigned int *map, unsigned long total, |
| | 88 | double *io_u_dist) |
| | 89 | { |
| | 90 | int i; |
| | 91 | |
| | 92 | /* |
| | 93 | * Do depth distribution calculations |
| | 94 | */ |
| | 95 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { |
| | 96 | if (total) { |
| | 97 | io_u_dist[i] = (double) map[i] / (double) total; |
| | 98 | io_u_dist[i] *= 100.0; |
| | 99 | if (io_u_dist[i] < 0.1 && map[i]) |
| | 100 | io_u_dist[i] = 0.1; |
| | 101 | } else |
| | 102 | io_u_dist[i] = 0.0; |
| | 103 | } |
| | 104 | } |
| | 105 | |
| | 106 | static void stat_calc_lat(struct thread_stat *ts, double *dst, |
| | 107 | unsigned int *src, int nr) |
| | 108 | { |
| | 109 | unsigned long total = ts_total_io_u(ts); |
| | 110 | int i; |
| | 111 | |
| | 112 | /* |
| | 113 | * Do latency distribution calculations |
| | 114 | */ |
| | 115 | for (i = 0; i < nr; i++) { |
| | 116 | if (total) { |
| | 117 | dst[i] = (double) src[i] / (double) total; |
| | 118 | dst[i] *= 100.0; |
| | 119 | if (dst[i] < 0.01 && src[i]) |
| | 120 | dst[i] = 0.01; |
| | 121 | } else |
| | 122 | dst[i] = 0.0; |
| | 123 | } |
| | 124 | } |
| | 125 | |
| | 126 | static void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat) |
| | 127 | { |
| | 128 | stat_calc_lat(ts, io_u_lat, ts->io_u_lat_u, FIO_IO_U_LAT_U_NR); |
| | 129 | } |
| | 130 | |
| | 131 | static void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat) |
| | 132 | { |
| | 133 | stat_calc_lat(ts, io_u_lat, ts->io_u_lat_m, FIO_IO_U_LAT_M_NR); |
| | 134 | } |
| | 135 | |
| | 136 | static int usec_to_msec(unsigned long *min, unsigned long *max, double *mean, |
| | 137 | double *dev) |
| | 138 | { |
| | 139 | if (*min > 1000 && *max > 1000 && *mean > 1000.0 && *dev > 1000.0) { |
| | 140 | *min /= 1000; |
| | 141 | *max /= 1000; |
| | 142 | *mean /= 1000.0; |
| | 143 | *dev /= 1000.0; |
| | 144 | return 0; |
| | 145 | } |
| | 146 | |
| | 147 | return 1; |
| | 148 | } |
| | 149 | |
| | 150 | static void show_ddir_status(struct group_run_stats *rs, struct thread_stat *ts, |
| | 151 | int ddir) |
| | 152 | { |
| | 153 | const char *ddir_str[] = { "read ", "write" }; |
| | 154 | unsigned long min, max, runt; |
| | 155 | unsigned long long bw, iops; |
| | 156 | double mean, dev; |
| | 157 | char *io_p, *bw_p, *iops_p; |
| | 158 | int i2p; |
| | 159 | |
| | 160 | assert(ddir_rw(ddir)); |
| | 161 | |
| | 162 | if (!ts->runtime[ddir]) |
| | 163 | return; |
| | 164 | |
| | 165 | i2p = is_power_of_2(rs->kb_base); |
| | 166 | runt = ts->runtime[ddir]; |
| | 167 | |
| | 168 | bw = (1000 * ts->io_bytes[ddir]) / runt; |
| | 169 | io_p = num2str(ts->io_bytes[ddir], 6, 1, i2p); |
| | 170 | bw_p = num2str(bw, 6, 1, i2p); |
| | 171 | |
| | 172 | iops = (1000 * (uint64_t)ts->total_io_u[ddir]) / runt; |
| | 173 | iops_p = num2str(iops, 6, 1, 0); |
| | 174 | |
| | 175 | log_info(" %s: io=%sB, bw=%sB/s, iops=%s, runt=%6llumsec\n", |
| | 176 | ddir_str[ddir], io_p, bw_p, iops_p, |
| | 177 | ts->runtime[ddir]); |
| | 178 | |
| | 179 | free(io_p); |
| | 180 | free(bw_p); |
| | 181 | free(iops_p); |
| | 182 | |
| | 183 | if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) { |
| | 184 | const char *base = "(usec)"; |
| | 185 | char *minp, *maxp; |
| | 186 | |
| | 187 | if (!usec_to_msec(&min, &max, &mean, &dev)) |
| | 188 | base = "(msec)"; |
| | 189 | |
| | 190 | minp = num2str(min, 6, 1, 0); |
| | 191 | maxp = num2str(max, 6, 1, 0); |
| | 192 | |
| | 193 | log_info(" slat %s: min=%s, max=%s, avg=%5.02f," |
| | 194 | " stdev=%5.02f\n", base, minp, maxp, mean, dev); |
| | 195 | |
| | 196 | free(minp); |
| | 197 | free(maxp); |
| | 198 | } |
| | 199 | if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) { |
| | 200 | const char *base = "(usec)"; |
| | 201 | char *minp, *maxp; |
| | 202 | |
| | 203 | if (!usec_to_msec(&min, &max, &mean, &dev)) |
| | 204 | base = "(msec)"; |
| | 205 | |
| | 206 | minp = num2str(min, 6, 1, 0); |
| | 207 | maxp = num2str(max, 6, 1, 0); |
| | 208 | |
| | 209 | log_info(" clat %s: min=%s, max=%s, avg=%5.02f," |
| | 210 | " stdev=%5.02f\n", base, minp, maxp, mean, dev); |
| | 211 | |
| | 212 | free(minp); |
| | 213 | free(maxp); |
| | 214 | } |
| | 215 | if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) { |
| | 216 | const char *base = "(usec)"; |
| | 217 | char *minp, *maxp; |
| | 218 | |
| | 219 | if (!usec_to_msec(&min, &max, &mean, &dev)) |
| | 220 | base = "(msec)"; |
| | 221 | |
| | 222 | minp = num2str(min, 6, 1, 0); |
| | 223 | maxp = num2str(max, 6, 1, 0); |
| | 224 | |
| | 225 | log_info(" lat %s: min=%s, max=%s, avg=%5.02f," |
| | 226 | " stdev=%5.02f\n", base, minp, maxp, mean, dev); |
| | 227 | |
| | 228 | free(minp); |
| | 229 | free(maxp); |
| | 230 | } |
| | 231 | if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { |
| | 232 | double p_of_agg; |
| | 233 | |
| | 234 | p_of_agg = mean * 100 / (double) rs->agg[ddir]; |
| | 235 | log_info(" bw (KB/s) : min=%5lu, max=%5lu, per=%3.2f%%," |
| | 236 | " avg=%5.02f, stdev=%5.02f\n", min, max, p_of_agg, |
| | 237 | mean, dev); |
| | 238 | } |
| | 239 | } |
| | 240 | |
| | 241 | static void show_lat(double *io_u_lat, int nr, const char **ranges, |
| | 242 | const char *msg) |
| | 243 | { |
| | 244 | int new_line = 1, i, line = 0; |
| | 245 | |
| | 246 | for (i = 0; i < nr; i++) { |
| | 247 | if (io_u_lat[i] <= 0.0) |
| | 248 | continue; |
| | 249 | if (new_line) { |
| | 250 | if (line) |
| | 251 | log_info("\n"); |
| | 252 | log_info(" lat (%s): ", msg); |
| | 253 | new_line = 0; |
| | 254 | line = 0; |
| | 255 | } |
| | 256 | if (line) |
| | 257 | log_info(", "); |
| | 258 | log_info("%s%3.2f%%", ranges[i], io_u_lat[i]); |
| | 259 | line++; |
| | 260 | if (line == 5) |
| | 261 | new_line = 1; |
| | 262 | } |
| | 263 | } |
| | 264 | |
| | 265 | static void show_lat_u(double *io_u_lat_u) |
| | 266 | { |
| | 267 | const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=", |
| | 268 | "250=", "500=", "750=", "1000=", }; |
| | 269 | |
| | 270 | show_lat(io_u_lat_u, FIO_IO_U_LAT_U_NR, ranges, "usec"); |
| | 271 | } |
| | 272 | |
| | 273 | static void show_lat_m(double *io_u_lat_m) |
| | 274 | { |
| | 275 | const char *ranges[] = { "2=", "4=", "10=", "20=", "50=", "100=", |
| | 276 | "250=", "500=", "750=", "1000=", "2000=", |
| | 277 | ">=2000=", }; |
| | 278 | |
| | 279 | show_lat(io_u_lat_m, FIO_IO_U_LAT_M_NR, ranges, "msec"); |
| | 280 | } |
| | 281 | |
| | 282 | static void show_latencies(double *io_u_lat_u, double *io_u_lat_m) |
| | 283 | { |
| | 284 | show_lat_u(io_u_lat_u); |
| | 285 | log_info("\n"); |
| | 286 | show_lat_m(io_u_lat_m); |
| | 287 | log_info("\n"); |
| | 288 | } |
| | 289 | |
| | 290 | static void show_thread_status(struct thread_stat *ts, |
| | 291 | struct group_run_stats *rs) |
| | 292 | { |
| | 293 | double usr_cpu, sys_cpu; |
| | 294 | unsigned long runtime; |
| | 295 | double io_u_dist[FIO_IO_U_MAP_NR]; |
| | 296 | double io_u_lat_u[FIO_IO_U_LAT_U_NR]; |
| | 297 | double io_u_lat_m[FIO_IO_U_LAT_M_NR]; |
| | 298 | |
| | 299 | if (!(ts->io_bytes[0] + ts->io_bytes[1]) && |
| | 300 | !(ts->total_io_u[0] + ts->total_io_u[1])) |
| | 301 | return; |
| | 302 | |
| | 303 | if (!ts->error) { |
| | 304 | log_info("%s: (groupid=%d, jobs=%d): err=%2d: pid=%d\n", |
| | 305 | ts->name, ts->groupid, ts->members, |
| | 306 | ts->error, (int) ts->pid); |
| | 307 | } else { |
| | 308 | log_info("%s: (groupid=%d, jobs=%d): err=%2d (%s): pid=%d\n", |
| | 309 | ts->name, ts->groupid, ts->members, |
| | 310 | ts->error, ts->verror, (int) ts->pid); |
| | 311 | } |
| | 312 | |
| | 313 | if (ts->description) |
| | 314 | log_info(" Description : [%s]\n", ts->description); |
| | 315 | |
| | 316 | if (ts->io_bytes[DDIR_READ]) |
| | 317 | show_ddir_status(rs, ts, DDIR_READ); |
| | 318 | if (ts->io_bytes[DDIR_WRITE]) |
| | 319 | show_ddir_status(rs, ts, DDIR_WRITE); |
| | 320 | |
| | 321 | runtime = ts->total_run_time; |
| | 322 | if (runtime) { |
| | 323 | double runt = (double) runtime; |
| | 324 | |
| | 325 | usr_cpu = (double) ts->usr_time * 100 / runt; |
| | 326 | sys_cpu = (double) ts->sys_time * 100 / runt; |
| | 327 | } else { |
| | 328 | usr_cpu = 0; |
| | 329 | sys_cpu = 0; |
| | 330 | } |
| | 331 | |
| | 332 | log_info(" cpu : usr=%3.2f%%, sys=%3.2f%%, ctx=%lu, majf=%lu," |
| | 333 | " minf=%lu\n", usr_cpu, sys_cpu, ts->ctx, ts->majf, ts->minf); |
| | 334 | |
| | 335 | stat_calc_dist(ts->io_u_map, ts_total_io_u(ts), io_u_dist); |
| | 336 | log_info(" IO depths : 1=%3.1f%%, 2=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%," |
| | 337 | " 16=%3.1f%%, 32=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], |
| | 338 | io_u_dist[1], io_u_dist[2], |
| | 339 | io_u_dist[3], io_u_dist[4], |
| | 340 | io_u_dist[5], io_u_dist[6]); |
| | 341 | |
| | 342 | stat_calc_dist(ts->io_u_submit, ts->total_submit, io_u_dist); |
| | 343 | log_info(" submit : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%," |
| | 344 | " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], |
| | 345 | io_u_dist[1], io_u_dist[2], |
| | 346 | io_u_dist[3], io_u_dist[4], |
| | 347 | io_u_dist[5], io_u_dist[6]); |
| | 348 | stat_calc_dist(ts->io_u_complete, ts->total_complete, io_u_dist); |
| | 349 | log_info(" complete : 0=%3.1f%%, 4=%3.1f%%, 8=%3.1f%%, 16=%3.1f%%," |
| | 350 | " 32=%3.1f%%, 64=%3.1f%%, >=64=%3.1f%%\n", io_u_dist[0], |
| | 351 | io_u_dist[1], io_u_dist[2], |
| | 352 | io_u_dist[3], io_u_dist[4], |
| | 353 | io_u_dist[5], io_u_dist[6]); |
| | 354 | log_info(" issued r/w/d: total=%lu/%lu/%lu, short=%lu/%lu/%lu\n", |
| | 355 | ts->total_io_u[0], ts->total_io_u[1], |
| | 356 | ts->total_io_u[2], |
| | 357 | ts->short_io_u[0], ts->short_io_u[1], |
| | 358 | ts->short_io_u[2]); |
| | 359 | stat_calc_lat_u(ts, io_u_lat_u); |
| | 360 | stat_calc_lat_m(ts, io_u_lat_m); |
| | 361 | show_latencies(io_u_lat_u, io_u_lat_m); |
| | 362 | if (ts->continue_on_error) { |
| | 363 | log_info(" errors : total=%lu, first_error=%d/<%s>\n", |
| | 364 | ts->total_err_count, |
| | 365 | ts->first_error, |
| | 366 | strerror(ts->first_error)); |
| | 367 | } |
| | 368 | } |
| | 369 | |
| | 370 | static void show_ddir_status_terse(struct thread_stat *ts, |
| | 371 | struct group_run_stats *rs, int ddir) |
| | 372 | { |
| | 373 | unsigned long min, max; |
| | 374 | unsigned long long bw; |
| | 375 | double mean, dev; |
| | 376 | |
| | 377 | assert(ddir_rw(ddir)); |
| | 378 | |
| | 379 | bw = 0; |
| | 380 | if (ts->runtime[ddir]) |
| | 381 | bw = ts->io_bytes[ddir] / ts->runtime[ddir]; |
| | 382 | |
| | 383 | log_info(";%llu;%llu;%llu", ts->io_bytes[ddir] >> 10, bw, |
| | 384 | ts->runtime[ddir]); |
| | 385 | |
| | 386 | if (calc_lat(&ts->slat_stat[ddir], &min, &max, &mean, &dev)) |
| | 387 | log_info(";%lu;%lu;%f;%f", min, max, mean, dev); |
| | 388 | else |
| | 389 | log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); |
| | 390 | |
| | 391 | if (calc_lat(&ts->clat_stat[ddir], &min, &max, &mean, &dev)) |
| | 392 | log_info(";%lu;%lu;%f;%f", min, max, mean, dev); |
| | 393 | else |
| | 394 | log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); |
| | 395 | |
| | 396 | if (calc_lat(&ts->lat_stat[ddir], &min, &max, &mean, &dev)) |
| | 397 | log_info(";%lu;%lu;%f;%f", min, max, mean, dev); |
| | 398 | else |
| | 399 | log_info(";%lu;%lu;%f;%f", 0UL, 0UL, 0.0, 0.0); |
| | 400 | |
| | 401 | if (calc_lat(&ts->bw_stat[ddir], &min, &max, &mean, &dev)) { |
| | 402 | double p_of_agg; |
| | 403 | |
| | 404 | p_of_agg = mean * 100 / (double) rs->agg[ddir]; |
| | 405 | log_info(";%lu;%lu;%f%%;%f;%f", min, max, p_of_agg, mean, dev); |
| | 406 | } else |
| | 407 | log_info(";%lu;%lu;%f%%;%f;%f", 0UL, 0UL, 0.0, 0.0, 0.0); |
| | 408 | } |
| | 409 | |
| | 410 | #define FIO_TERSE_VERSION "2" |
| | 411 | |
| | 412 | static void show_thread_status_terse(struct thread_stat *ts, |
| | 413 | struct group_run_stats *rs) |
| | 414 | { |
| | 415 | double io_u_dist[FIO_IO_U_MAP_NR]; |
| | 416 | double io_u_lat_u[FIO_IO_U_LAT_U_NR]; |
| | 417 | double io_u_lat_m[FIO_IO_U_LAT_M_NR]; |
| | 418 | double usr_cpu, sys_cpu; |
| | 419 | int i; |
| | 420 | |
| | 421 | /* General Info */ |
| | 422 | log_info("%s;%s;%d;%d", FIO_TERSE_VERSION, ts->name, ts->groupid, |
| | 423 | ts->error); |
| | 424 | /* Log Read Status */ |
| | 425 | show_ddir_status_terse(ts, rs, 0); |
| | 426 | /* Log Write Status */ |
| | 427 | show_ddir_status_terse(ts, rs, 1); |
| | 428 | |
| | 429 | /* CPU Usage */ |
| | 430 | if (ts->total_run_time) { |
| | 431 | double runt = (double) ts->total_run_time; |
| | 432 | |
| | 433 | usr_cpu = (double) ts->usr_time * 100 / runt; |
| | 434 | sys_cpu = (double) ts->sys_time * 100 / runt; |
| | 435 | } else { |
| | 436 | usr_cpu = 0; |
| | 437 | sys_cpu = 0; |
| | 438 | } |
| | 439 | |
| | 440 | log_info(";%f%%;%f%%;%lu;%lu;%lu", usr_cpu, sys_cpu, ts->ctx, ts->majf, |
| | 441 | ts->minf); |
| | 442 | |
| | 443 | /* Calc % distribution of IO depths, usecond, msecond latency */ |
| | 444 | stat_calc_dist(ts->io_u_map, ts_total_io_u(ts), io_u_dist); |
| | 445 | stat_calc_lat_u(ts, io_u_lat_u); |
| | 446 | stat_calc_lat_m(ts, io_u_lat_m); |
| | 447 | |
| | 448 | /* Only show fixed 7 I/O depth levels*/ |
| | 449 | log_info(";%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%;%3.1f%%", |
| | 450 | io_u_dist[0], io_u_dist[1], io_u_dist[2], io_u_dist[3], |
| | 451 | io_u_dist[4], io_u_dist[5], io_u_dist[6]); |
| | 452 | |
| | 453 | /* Microsecond latency */ |
| | 454 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) |
| | 455 | log_info(";%3.2f%%", io_u_lat_u[i]); |
| | 456 | /* Millisecond latency */ |
| | 457 | for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) |
| | 458 | log_info(";%3.2f%%", io_u_lat_m[i]); |
| | 459 | /* Additional output if continue_on_error set - default off*/ |
| | 460 | if (ts->continue_on_error) |
| | 461 | log_info(";%lu;%d", ts->total_err_count, ts->first_error); |
| | 462 | log_info("\n"); |
| | 463 | |
| | 464 | /* Additional output if description is set */ |
| | 465 | if (ts->description) |
| | 466 | log_info(";%s", ts->description); |
| | 467 | |
| | 468 | log_info("\n"); |
| | 469 | } |
| | 470 | |
| | 471 | static void sum_stat(struct io_stat *dst, struct io_stat *src, int nr) |
| | 472 | { |
| | 473 | double mean, S; |
| | 474 | |
| | 475 | dst->min_val = min(dst->min_val, src->min_val); |
| | 476 | dst->max_val = max(dst->max_val, src->max_val); |
| | 477 | |
| | 478 | /* |
| | 479 | * Compute new mean and S after the merge |
| | 480 | * <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance |
| | 481 | * #Parallel_algorithm> |
| | 482 | */ |
| | 483 | if (nr == 1) { |
| | 484 | mean = src->mean; |
| | 485 | S = src->S; |
| | 486 | } else { |
| | 487 | double delta = src->mean - dst->mean; |
| | 488 | |
| | 489 | mean = ((src->mean * src->samples) + |
| | 490 | (dst->mean * dst->samples)) / |
| | 491 | (dst->samples + src->samples); |
| | 492 | |
| | 493 | S = src->S + dst->S + pow(delta, 2.0) * |
| | 494 | (dst->samples * src->samples) / |
| | 495 | (dst->samples + src->samples); |
| | 496 | } |
| | 497 | |
| | 498 | dst->samples += src->samples; |
| | 499 | dst->mean = mean; |
| | 500 | dst->S = S; |
| | 501 | } |
| | 502 | |
| | 503 | void show_run_stats(void) |
| | 504 | { |
| | 505 | struct group_run_stats *runstats, *rs; |
| | 506 | struct thread_data *td; |
| | 507 | struct thread_stat *threadstats, *ts; |
| | 508 | int i, j, k, l, nr_ts, last_ts, idx; |
| | 509 | int kb_base_warned = 0; |
| | 510 | |
| | 511 | runstats = malloc(sizeof(struct group_run_stats) * (groupid + 1)); |
| | 512 | |
| | 513 | for (i = 0; i < groupid + 1; i++) { |
| | 514 | rs = &runstats[i]; |
| | 515 | |
| | 516 | memset(rs, 0, sizeof(*rs)); |
| | 517 | rs->min_bw[0] = rs->min_run[0] = ~0UL; |
| | 518 | rs->min_bw[1] = rs->min_run[1] = ~0UL; |
| | 519 | } |
| | 520 | |
| | 521 | /* |
| | 522 | * find out how many threads stats we need. if group reporting isn't |
| | 523 | * enabled, it's one-per-td. |
| | 524 | */ |
| | 525 | nr_ts = 0; |
| | 526 | last_ts = -1; |
| | 527 | for_each_td(td, i) { |
| | 528 | if (!td->o.group_reporting) { |
| | 529 | nr_ts++; |
| | 530 | continue; |
| | 531 | } |
| | 532 | if (last_ts == td->groupid) |
| | 533 | continue; |
| | 534 | |
| | 535 | last_ts = td->groupid; |
| | 536 | nr_ts++; |
| | 537 | } |
| | 538 | |
| | 539 | threadstats = malloc(nr_ts * sizeof(struct thread_stat)); |
| | 540 | |
| | 541 | for (i = 0; i < nr_ts; i++) { |
| | 542 | ts = &threadstats[i]; |
| | 543 | |
| | 544 | memset(ts, 0, sizeof(*ts)); |
| | 545 | for (j = 0; j <= DDIR_WRITE; j++) { |
| | 546 | ts->lat_stat[j].min_val = -1UL; |
| | 547 | ts->clat_stat[j].min_val = -1UL; |
| | 548 | ts->slat_stat[j].min_val = -1UL; |
| | 549 | ts->bw_stat[j].min_val = -1UL; |
| | 550 | } |
| | 551 | ts->groupid = -1; |
| | 552 | } |
| | 553 | |
| | 554 | j = 0; |
| | 555 | last_ts = -1; |
| | 556 | idx = 0; |
| | 557 | for_each_td(td, i) { |
| | 558 | if (idx && (!td->o.group_reporting || |
| | 559 | (td->o.group_reporting && last_ts != td->groupid))) { |
| | 560 | idx = 0; |
| | 561 | j++; |
| | 562 | } |
| | 563 | |
| | 564 | last_ts = td->groupid; |
| | 565 | |
| | 566 | ts = &threadstats[j]; |
| | 567 | |
| | 568 | idx++; |
| | 569 | ts->members++; |
| | 570 | |
| | 571 | if (ts->groupid == -1) { |
| | 572 | /* |
| | 573 | * These are per-group shared already |
| | 574 | */ |
| | 575 | ts->name = td->o.name; |
| | 576 | ts->description = td->o.description; |
| | 577 | ts->groupid = td->groupid; |
| | 578 | |
| | 579 | /* |
| | 580 | * first pid in group, not very useful... |
| | 581 | */ |
| | 582 | ts->pid = td->pid; |
| | 583 | |
| | 584 | ts->kb_base = td->o.kb_base; |
| | 585 | } else if (ts->kb_base != td->o.kb_base && !kb_base_warned) { |
| | 586 | log_info("fio: kb_base differs for jobs in group, using" |
| | 587 | " %u as the base\n", ts->kb_base); |
| | 588 | kb_base_warned = 1; |
| | 589 | } |
| | 590 | |
| | 591 | ts->continue_on_error = td->o.continue_on_error; |
| | 592 | ts->total_err_count += td->total_err_count; |
| | 593 | ts->first_error = td->first_error; |
| | 594 | if (!ts->error) { |
| | 595 | if (!td->error && td->o.continue_on_error && |
| | 596 | td->first_error) { |
| | 597 | ts->error = td->first_error; |
| | 598 | ts->verror = td->verror; |
| | 599 | } else if (td->error) { |
| | 600 | ts->error = td->error; |
| | 601 | ts->verror = td->verror; |
| | 602 | } |
| | 603 | } |
| | 604 | |
| | 605 | for (l = 0; l <= DDIR_WRITE; l++) { |
| | 606 | sum_stat(&ts->clat_stat[l], &td->ts.clat_stat[l], idx); |
| | 607 | sum_stat(&ts->slat_stat[l], &td->ts.slat_stat[l], idx); |
| | 608 | sum_stat(&ts->lat_stat[l], &td->ts.lat_stat[l], idx); |
| | 609 | sum_stat(&ts->bw_stat[l], &td->ts.bw_stat[l], idx); |
| | 610 | |
| | 611 | ts->stat_io_bytes[l] += td->ts.stat_io_bytes[l]; |
| | 612 | ts->io_bytes[l] += td->ts.io_bytes[l]; |
| | 613 | |
| | 614 | if (ts->runtime[l] < td->ts.runtime[l]) |
| | 615 | ts->runtime[l] = td->ts.runtime[l]; |
| | 616 | } |
| | 617 | |
| | 618 | ts->usr_time += td->ts.usr_time; |
| | 619 | ts->sys_time += td->ts.sys_time; |
| | 620 | ts->ctx += td->ts.ctx; |
| | 621 | ts->majf += td->ts.majf; |
| | 622 | ts->minf += td->ts.minf; |
| | 623 | |
| | 624 | for (k = 0; k < FIO_IO_U_MAP_NR; k++) |
| | 625 | ts->io_u_map[k] += td->ts.io_u_map[k]; |
| | 626 | for (k = 0; k < FIO_IO_U_MAP_NR; k++) |
| | 627 | ts->io_u_submit[k] += td->ts.io_u_submit[k]; |
| | 628 | for (k = 0; k < FIO_IO_U_MAP_NR; k++) |
| | 629 | ts->io_u_complete[k] += td->ts.io_u_complete[k]; |
| | 630 | for (k = 0; k < FIO_IO_U_LAT_U_NR; k++) |
| | 631 | ts->io_u_lat_u[k] += td->ts.io_u_lat_u[k]; |
| | 632 | for (k = 0; k < FIO_IO_U_LAT_M_NR; k++) |
| | 633 | ts->io_u_lat_m[k] += td->ts.io_u_lat_m[k]; |
| | 634 | |
| | 635 | |
| | 636 | for (k = 0; k <= 2; k++) { |
| | 637 | ts->total_io_u[k] += td->ts.total_io_u[k]; |
| | 638 | ts->short_io_u[k] += td->ts.short_io_u[k]; |
| | 639 | } |
| | 640 | |
| | 641 | ts->total_run_time += td->ts.total_run_time; |
| | 642 | ts->total_submit += td->ts.total_submit; |
| | 643 | ts->total_complete += td->ts.total_complete; |
| | 644 | } |
| | 645 | |
| | 646 | for (i = 0; i < nr_ts; i++) { |
| | 647 | unsigned long long bw; |
| | 648 | |
| | 649 | ts = &threadstats[i]; |
| | 650 | rs = &runstats[ts->groupid]; |
| | 651 | rs->kb_base = ts->kb_base; |
| | 652 | |
| | 653 | for (j = 0; j <= DDIR_WRITE; j++) { |
| | 654 | if (!ts->runtime[j]) |
| | 655 | continue; |
| | 656 | if (ts->runtime[j] < rs->min_run[j] || !rs->min_run[j]) |
| | 657 | rs->min_run[j] = ts->runtime[j]; |
| | 658 | if (ts->runtime[j] > rs->max_run[j]) |
| | 659 | rs->max_run[j] = ts->runtime[j]; |
| | 660 | |
| | 661 | bw = 0; |
| | 662 | if (ts->runtime[j]) { |
| | 663 | unsigned long runt; |
| | 664 | |
| | 665 | runt = ts->runtime[j]; |
| | 666 | bw = ts->io_bytes[j] / runt; |
| | 667 | } |
| | 668 | if (bw < rs->min_bw[j]) |
| | 669 | rs->min_bw[j] = bw; |
| | 670 | if (bw > rs->max_bw[j]) |
| | 671 | rs->max_bw[j] = bw; |
| | 672 | |
| | 673 | rs->io_kb[j] += ts->io_bytes[j] / rs->kb_base; |
| | 674 | } |
| | 675 | } |
| | 676 | |
| | 677 | for (i = 0; i < groupid + 1; i++) { |
| | 678 | unsigned long max_run[2]; |
| | 679 | |
| | 680 | rs = &runstats[i]; |
| | 681 | max_run[0] = rs->max_run[0]; |
| | 682 | max_run[1] = rs->max_run[1]; |
| | 683 | |
| | 684 | if (rs->max_run[0]) |
| | 685 | rs->agg[0] = (rs->io_kb[0] * 1000) / max_run[0]; |
| | 686 | if (rs->max_run[1]) |
| | 687 | rs->agg[1] = (rs->io_kb[1] * 1000) / max_run[1]; |
| | 688 | } |
| | 689 | |
| | 690 | /* |
| | 691 | * don't overwrite last signal output |
| | 692 | */ |
| | 693 | if (!terse_output) |
| | 694 | log_info("\n"); |
| | 695 | |
| | 696 | for (i = 0; i < nr_ts; i++) { |
| | 697 | ts = &threadstats[i]; |
| | 698 | rs = &runstats[ts->groupid]; |
| | 699 | |
| | 700 | if (terse_output) |
| | 701 | show_thread_status_terse(ts, rs); |
| | 702 | else |
| | 703 | show_thread_status(ts, rs); |
| | 704 | } |
| | 705 | |
| | 706 | if (!terse_output) { |
| | 707 | for (i = 0; i < groupid + 1; i++) |
| | 708 | show_group_stats(&runstats[i], i); |
| | 709 | |
| | 710 | show_disk_util(); |
| | 711 | } |
| | 712 | |
| | 713 | free(runstats); |
| | 714 | free(threadstats); |
| | 715 | } |
| | 716 | |
| | 717 | static inline void add_stat_sample(struct io_stat *is, unsigned long data) |
| | 718 | { |
| | 719 | double val = data; |
| | 720 | double delta; |
| | 721 | |
| | 722 | if (data > is->max_val) |
| | 723 | is->max_val = data; |
| | 724 | if (data < is->min_val) |
| | 725 | is->min_val = data; |
| | 726 | |
| | 727 | delta = val - is->mean; |
| | 728 | if (delta) { |
| | 729 | is->mean += delta / (is->samples + 1.0); |
| | 730 | is->S += delta * (val - is->mean); |
| | 731 | } |
| | 732 | |
| | 733 | is->samples++; |
| | 734 | } |
| | 735 | |
| | 736 | static void __add_log_sample(struct io_log *iolog, unsigned long val, |
| | 737 | enum fio_ddir ddir, unsigned int bs, |
| | 738 | unsigned long t) |
| | 739 | { |
| | 740 | const int nr_samples = iolog->nr_samples; |
| | 741 | |
| | 742 | if (iolog->nr_samples == iolog->max_samples) { |
| | 743 | int new_size = sizeof(struct io_sample) * iolog->max_samples*2; |
| | 744 | |
| | 745 | iolog->log = realloc(iolog->log, new_size); |
| | 746 | iolog->max_samples <<= 1; |
| | 747 | } |
| | 748 | |
| | 749 | iolog->log[nr_samples].val = val; |
| | 750 | iolog->log[nr_samples].time = t; |
| | 751 | iolog->log[nr_samples].ddir = ddir; |
| | 752 | iolog->log[nr_samples].bs = bs; |
| | 753 | iolog->nr_samples++; |
| | 754 | } |
| | 755 | |
| | 756 | static void add_log_sample(struct thread_data *td, struct io_log *iolog, |
| | 757 | unsigned long val, enum fio_ddir ddir, |
| | 758 | unsigned int bs) |
| | 759 | { |
| | 760 | if (!ddir_rw(ddir)) |
| | 761 | return; |
| | 762 | |
| | 763 | __add_log_sample(iolog, val, ddir, bs, mtime_since_now(&td->epoch)); |
| | 764 | } |
| | 765 | |
| | 766 | void add_agg_sample(unsigned long val, enum fio_ddir ddir, unsigned int bs) |
| | 767 | { |
| | 768 | struct io_log *iolog; |
| | 769 | |
| | 770 | if (!ddir_rw(ddir)) |
| | 771 | return; |
| | 772 | |
| | 773 | iolog = agg_io_log[ddir]; |
| | 774 | __add_log_sample(iolog, val, ddir, bs, mtime_since_genesis()); |
| | 775 | } |
| | 776 | |
| | 777 | void add_clat_sample(struct thread_data *td, enum fio_ddir ddir, |
| | 778 | unsigned long usec, unsigned int bs) |
| | 779 | { |
| | 780 | struct thread_stat *ts = &td->ts; |
| | 781 | |
| | 782 | if (!ddir_rw(ddir)) |
| | 783 | return; |
| | 784 | |
| | 785 | add_stat_sample(&ts->clat_stat[ddir], usec); |
| | 786 | |
| | 787 | if (ts->clat_log) |
| | 788 | add_log_sample(td, ts->clat_log, usec, ddir, bs); |
| | 789 | } |
| | 790 | |
| | 791 | void add_slat_sample(struct thread_data *td, enum fio_ddir ddir, |
| | 792 | unsigned long usec, unsigned int bs) |
| | 793 | { |
| | 794 | struct thread_stat *ts = &td->ts; |
| | 795 | |
| | 796 | if (!ddir_rw(ddir)) |
| | 797 | return; |
| | 798 | |
| | 799 | add_stat_sample(&ts->slat_stat[ddir], usec); |
| | 800 | |
| | 801 | if (ts->slat_log) |
| | 802 | add_log_sample(td, ts->slat_log, usec, ddir, bs); |
| | 803 | } |
| | 804 | |
| | 805 | void add_lat_sample(struct thread_data *td, enum fio_ddir ddir, |
| | 806 | unsigned long usec, unsigned int bs) |
| | 807 | { |
| | 808 | struct thread_stat *ts = &td->ts; |
| | 809 | |
| | 810 | if (!ddir_rw(ddir)) |
| | 811 | return; |
| | 812 | |
| | 813 | add_stat_sample(&ts->lat_stat[ddir], usec); |
| | 814 | |
| | 815 | if (ts->lat_log) |
| | 816 | add_log_sample(td, ts->lat_log, usec, ddir, bs); |
| | 817 | } |
| | 818 | |
| | 819 | void add_bw_sample(struct thread_data *td, enum fio_ddir ddir, unsigned int bs, |
| | 820 | struct timeval *t) |
| | 821 | { |
| | 822 | struct thread_stat *ts = &td->ts; |
| | 823 | unsigned long spent, rate; |
| | 824 | |
| | 825 | if (!ddir_rw(ddir)) |
| | 826 | return; |
| | 827 | |
| | 828 | spent = mtime_since(&ts->stat_sample_time[ddir], t); |
| | 829 | if (spent < td->o.bw_avg_time) |
| | 830 | return; |
| | 831 | |
| | 832 | rate = (td->this_io_bytes[ddir] - ts->stat_io_bytes[ddir]) * |
| | 833 | 1000 / spent / 1024; |
| | 834 | add_stat_sample(&ts->bw_stat[ddir], rate); |
| | 835 | |
| | 836 | if (ts->bw_log) |
| | 837 | add_log_sample(td, ts->bw_log, rate, ddir, bs); |
| | 838 | |
| | 839 | fio_gettime(&ts->stat_sample_time[ddir], NULL); |
| | 840 | ts->stat_io_bytes[ddir] = td->this_io_bytes[ddir]; |
| | 841 | } |
projects / fio.git / blame_incremental