Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1 | /* |
| 2 | * fio - the flexible io tester |
| 3 | * |
| 4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | * |
| 20 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 21 | #include <unistd.h> |
| 22 | #include <fcntl.h> |
| 23 | #include <string.h> |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 24 | #include <signal.h> |
| 25 | #include <time.h> |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 26 | #include <assert.h> |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 27 | #include <sys/stat.h> |
| 28 | #include <sys/wait.h> |
| 29 | #include <sys/ipc.h> |
| 30 | #include <sys/shm.h> |
| 31 | #include <sys/ioctl.h> |
| 32 | #include <sys/mman.h> |
| 33 | |
| 34 | #include "fio.h" |
| 35 | #include "os.h" |
| 36 | |
| 37 | #define MASK (4095) |
| 38 | |
| 39 | #define ALIGN(buf) (char *) (((unsigned long) (buf) + MASK) & ~(MASK)) |
| 40 | |
| 41 | int groupid = 0; |
| 42 | int thread_number = 0; |
| 43 | static char run_str[MAX_JOBS + 1]; |
| 44 | int shm_id = 0; |
Jens Axboe | 5289b84 | 2005-12-08 20:47:28 +0100 | [diff] [blame] | 45 | static struct timeval genesis; |
Jens Axboe | 88c6ed8 | 2006-06-09 11:28:10 +0200 | [diff] [blame] | 46 | static int temp_stall_ts; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 47 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 48 | static void print_thread_status(void); |
| 49 | |
Jens Axboe | c04f7ec | 2006-05-31 10:13:16 +0200 | [diff] [blame] | 50 | extern unsigned long long mlock_size; |
| 51 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 52 | /* |
Jens Axboe | 7980911 | 2006-06-09 10:14:54 +0200 | [diff] [blame] | 53 | * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it |
| 54 | * will never back again. It may cycle between running/verififying/fsyncing. |
| 55 | * Once the thread reaches TD_EXITED, it is just waiting for the core to |
| 56 | * reap it. |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 57 | */ |
| 58 | enum { |
| 59 | TD_NOT_CREATED = 0, |
| 60 | TD_CREATED, |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 61 | TD_INITIALIZED, |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 62 | TD_RUNNING, |
| 63 | TD_VERIFYING, |
Jens Axboe | 5853e5a | 2006-06-08 14:41:05 +0200 | [diff] [blame] | 64 | TD_FSYNCING, |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 65 | TD_EXITED, |
| 66 | TD_REAPED, |
| 67 | }; |
| 68 | |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 69 | #define should_fsync(td) ((td_write(td) || td_rw(td)) && (!(td)->odirect || (td)->override_sync)) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 70 | |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 71 | static volatile int startup_sem; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 72 | |
| 73 | #define TERMINATE_ALL (-1) |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 74 | #define JOB_START_TIMEOUT (5 * 1000) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 75 | |
| 76 | static void terminate_threads(int group_id) |
| 77 | { |
| 78 | int i; |
| 79 | |
| 80 | for (i = 0; i < thread_number; i++) { |
| 81 | struct thread_data *td = &threads[i]; |
| 82 | |
| 83 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
| 84 | td->terminate = 1; |
| 85 | td->start_delay = 0; |
| 86 | } |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | static void sig_handler(int sig) |
| 91 | { |
| 92 | switch (sig) { |
| 93 | case SIGALRM: |
| 94 | update_io_ticks(); |
| 95 | disk_util_timer_arm(); |
| 96 | print_thread_status(); |
| 97 | break; |
| 98 | default: |
| 99 | printf("\nfio: terminating on signal\n"); |
| 100 | fflush(stdout); |
| 101 | terminate_threads(TERMINATE_ALL); |
| 102 | break; |
| 103 | } |
| 104 | } |
| 105 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 106 | /* |
| 107 | * The ->file_map[] contains a map of blocks we have or have not done io |
| 108 | * to yet. Used to make sure we cover the entire range in a fair fashion. |
| 109 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 110 | static int random_map_free(struct thread_data *td, unsigned long long block) |
| 111 | { |
| 112 | unsigned int idx = RAND_MAP_IDX(td, block); |
| 113 | unsigned int bit = RAND_MAP_BIT(td, block); |
| 114 | |
| 115 | return (td->file_map[idx] & (1UL << bit)) == 0; |
| 116 | } |
| 117 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 118 | /* |
| 119 | * Return the next free block in the map. |
| 120 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 121 | static int get_next_free_block(struct thread_data *td, unsigned long long *b) |
| 122 | { |
| 123 | int i; |
| 124 | |
| 125 | *b = 0; |
| 126 | i = 0; |
| 127 | while ((*b) * td->min_bs < td->io_size) { |
| 128 | if (td->file_map[i] != -1UL) { |
| 129 | *b += ffz(td->file_map[i]); |
| 130 | return 0; |
| 131 | } |
| 132 | |
| 133 | *b += BLOCKS_PER_MAP; |
| 134 | i++; |
| 135 | } |
| 136 | |
| 137 | return 1; |
| 138 | } |
| 139 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 140 | /* |
| 141 | * Mark a given offset as used in the map. |
| 142 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 143 | static void mark_random_map(struct thread_data *td, struct io_u *io_u) |
| 144 | { |
Jens Axboe | 200bc85 | 2006-06-01 16:10:12 +0200 | [diff] [blame] | 145 | unsigned long long block = io_u->offset / (unsigned long long) td->min_bs; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 146 | unsigned int blocks = 0; |
| 147 | |
| 148 | while (blocks < (io_u->buflen / td->min_bs)) { |
| 149 | unsigned int idx, bit; |
| 150 | |
| 151 | if (!random_map_free(td, block)) |
| 152 | break; |
| 153 | |
| 154 | idx = RAND_MAP_IDX(td, block); |
| 155 | bit = RAND_MAP_BIT(td, block); |
| 156 | |
| 157 | assert(idx < td->num_maps); |
| 158 | |
| 159 | td->file_map[idx] |= (1UL << bit); |
| 160 | block++; |
| 161 | blocks++; |
| 162 | } |
| 163 | |
| 164 | if ((blocks * td->min_bs) < io_u->buflen) |
| 165 | io_u->buflen = blocks * td->min_bs; |
| 166 | } |
| 167 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 168 | /* |
| 169 | * For random io, generate a random new block and see if it's used. Repeat |
| 170 | * until we find a free one. For sequential io, just return the end of |
| 171 | * the last io issued. |
| 172 | */ |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 173 | static int get_next_offset(struct thread_data *td, unsigned long long *offset) |
| 174 | { |
| 175 | unsigned long long b, rb; |
| 176 | long r; |
| 177 | |
| 178 | if (!td->sequential) { |
Jens Axboe | 085227a | 2006-06-01 15:54:09 -0700 | [diff] [blame] | 179 | unsigned long long max_blocks = td->io_size / td->min_bs; |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 180 | int loops = 50; |
| 181 | |
| 182 | do { |
Jens Axboe | 6dfd46b | 2006-06-07 13:57:06 +0200 | [diff] [blame] | 183 | r = os_random_long(&td->random_state); |
Jens Axboe | 085227a | 2006-06-01 15:54:09 -0700 | [diff] [blame] | 184 | b = ((max_blocks - 1) * r / (unsigned long long) (RAND_MAX+1.0)); |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 185 | rb = b + (td->file_offset / td->min_bs); |
| 186 | loops--; |
| 187 | } while (!random_map_free(td, rb) && loops); |
| 188 | |
| 189 | if (!loops) { |
| 190 | if (get_next_free_block(td, &b)) |
| 191 | return 1; |
| 192 | } |
| 193 | } else |
| 194 | b = td->last_pos / td->min_bs; |
| 195 | |
| 196 | *offset = (b * td->min_bs) + td->file_offset; |
Jens Axboe | 838a3cd | 2006-01-20 12:38:29 +0100 | [diff] [blame] | 197 | if (*offset > td->real_file_size) |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 198 | return 1; |
| 199 | |
| 200 | return 0; |
| 201 | } |
| 202 | |
| 203 | static unsigned int get_next_buflen(struct thread_data *td) |
| 204 | { |
| 205 | unsigned int buflen; |
| 206 | long r; |
| 207 | |
| 208 | if (td->min_bs == td->max_bs) |
| 209 | buflen = td->min_bs; |
| 210 | else { |
Jens Axboe | 6dfd46b | 2006-06-07 13:57:06 +0200 | [diff] [blame] | 211 | r = os_random_long(&td->bsrange_state); |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 212 | buflen = (1 + (double) (td->max_bs - 1) * r / (RAND_MAX + 1.0)); |
| 213 | buflen = (buflen + td->min_bs - 1) & ~(td->min_bs - 1); |
| 214 | } |
| 215 | |
| 216 | if (buflen > td->io_size - td->this_io_bytes[td->ddir]) |
| 217 | buflen = td->io_size - td->this_io_bytes[td->ddir]; |
| 218 | |
| 219 | return buflen; |
| 220 | } |
| 221 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 222 | /* |
| 223 | * Check if we are above the minimum rate given. |
| 224 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 225 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
| 226 | { |
| 227 | unsigned long spent; |
| 228 | unsigned long rate; |
| 229 | int ddir = td->ddir; |
| 230 | |
| 231 | /* |
| 232 | * allow a 2 second settle period in the beginning |
| 233 | */ |
| 234 | if (mtime_since(&td->start, now) < 2000) |
| 235 | return 0; |
| 236 | |
| 237 | /* |
| 238 | * if rate blocks is set, sample is running |
| 239 | */ |
| 240 | if (td->rate_bytes) { |
| 241 | spent = mtime_since(&td->lastrate, now); |
| 242 | if (spent < td->ratecycle) |
| 243 | return 0; |
| 244 | |
| 245 | rate = (td->this_io_bytes[ddir] - td->rate_bytes) / spent; |
| 246 | if (rate < td->ratemin) { |
Jens Axboe | eb8bbf4 | 2006-06-08 21:40:11 +0200 | [diff] [blame] | 247 | fprintf(f_out, "%s: min rate %d not met, got %ldKiB/sec\n", td->name, td->ratemin, rate); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 248 | if (rate_quit) |
| 249 | terminate_threads(td->groupid); |
| 250 | return 1; |
| 251 | } |
| 252 | } |
| 253 | |
| 254 | td->rate_bytes = td->this_io_bytes[ddir]; |
| 255 | memcpy(&td->lastrate, now, sizeof(*now)); |
| 256 | return 0; |
| 257 | } |
| 258 | |
| 259 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
| 260 | { |
| 261 | if (!td->timeout) |
| 262 | return 0; |
| 263 | if (mtime_since(&td->epoch, t) >= td->timeout * 1000) |
| 264 | return 1; |
| 265 | |
| 266 | return 0; |
| 267 | } |
| 268 | |
| 269 | static void fill_random_bytes(struct thread_data *td, |
| 270 | unsigned char *p, unsigned int len) |
| 271 | { |
| 272 | unsigned int todo; |
| 273 | double r; |
| 274 | |
| 275 | while (len) { |
Jens Axboe | 6dfd46b | 2006-06-07 13:57:06 +0200 | [diff] [blame] | 276 | r = os_random_double(&td->verify_state); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 277 | |
| 278 | /* |
| 279 | * lrand48_r seems to be broken and only fill the bottom |
| 280 | * 32-bits, even on 64-bit archs with 64-bit longs |
| 281 | */ |
| 282 | todo = sizeof(r); |
| 283 | if (todo > len) |
| 284 | todo = len; |
| 285 | |
| 286 | memcpy(p, &r, todo); |
| 287 | |
| 288 | len -= todo; |
| 289 | p += todo; |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | static void hexdump(void *buffer, int len) |
| 294 | { |
| 295 | unsigned char *p = buffer; |
| 296 | int i; |
| 297 | |
| 298 | for (i = 0; i < len; i++) |
Jens Axboe | eb8bbf4 | 2006-06-08 21:40:11 +0200 | [diff] [blame] | 299 | fprintf(f_out, "%02x", p[i]); |
| 300 | fprintf(f_out, "\n"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 301 | } |
| 302 | |
| 303 | static int verify_io_u_crc32(struct verify_header *hdr, struct io_u *io_u) |
| 304 | { |
| 305 | unsigned char *p = (unsigned char *) io_u->buf; |
| 306 | unsigned long c; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 307 | |
| 308 | p += sizeof(*hdr); |
| 309 | c = crc32(p, hdr->len - sizeof(*hdr)); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 310 | |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 311 | if (c != hdr->crc32) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 312 | log_err("crc32: verify failed at %llu/%u\n", io_u->offset, io_u->buflen); |
| 313 | log_err("crc32: wanted %lx, got %lx\n", hdr->crc32, c); |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 314 | return 1; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 315 | } |
| 316 | |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 317 | return 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | static int verify_io_u_md5(struct verify_header *hdr, struct io_u *io_u) |
| 321 | { |
| 322 | unsigned char *p = (unsigned char *) io_u->buf; |
| 323 | struct md5_ctx md5_ctx; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 324 | |
| 325 | memset(&md5_ctx, 0, sizeof(md5_ctx)); |
| 326 | p += sizeof(*hdr); |
| 327 | md5_update(&md5_ctx, p, hdr->len - sizeof(*hdr)); |
| 328 | |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 329 | if (memcmp(hdr->md5_digest, md5_ctx.hash, sizeof(md5_ctx.hash))) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 330 | log_err("md5: verify failed at %llu/%u\n", io_u->offset, io_u->buflen); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 331 | hexdump(hdr->md5_digest, sizeof(hdr->md5_digest)); |
| 332 | hexdump(md5_ctx.hash, sizeof(md5_ctx.hash)); |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 333 | return 1; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 334 | } |
| 335 | |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 336 | return 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 337 | } |
| 338 | |
| 339 | static int verify_io_u(struct io_u *io_u) |
| 340 | { |
| 341 | struct verify_header *hdr = (struct verify_header *) io_u->buf; |
| 342 | int ret; |
| 343 | |
| 344 | if (hdr->fio_magic != FIO_HDR_MAGIC) |
| 345 | return 1; |
| 346 | |
| 347 | if (hdr->verify_type == VERIFY_MD5) |
| 348 | ret = verify_io_u_md5(hdr, io_u); |
| 349 | else if (hdr->verify_type == VERIFY_CRC32) |
| 350 | ret = verify_io_u_crc32(hdr, io_u); |
| 351 | else { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 352 | log_err("Bad verify type %d\n", hdr->verify_type); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 353 | ret = 1; |
| 354 | } |
| 355 | |
| 356 | return ret; |
| 357 | } |
| 358 | |
| 359 | static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len) |
| 360 | { |
| 361 | hdr->crc32 = crc32(p, len); |
| 362 | } |
| 363 | |
| 364 | static void fill_md5(struct verify_header *hdr, void *p, unsigned int len) |
| 365 | { |
| 366 | struct md5_ctx md5_ctx; |
| 367 | |
| 368 | memset(&md5_ctx, 0, sizeof(md5_ctx)); |
| 369 | md5_update(&md5_ctx, p, len); |
| 370 | memcpy(hdr->md5_digest, md5_ctx.hash, sizeof(md5_ctx.hash)); |
| 371 | } |
| 372 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 373 | /* |
| 374 | * Return the data direction for the next io_u. If the job is a |
| 375 | * mixed read/write workload, check the rwmix cycle and switch if |
| 376 | * necessary. |
| 377 | */ |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 378 | static int get_rw_ddir(struct thread_data *td) |
| 379 | { |
Jens Axboe | a6ccc7b | 2006-06-02 10:14:15 +0200 | [diff] [blame] | 380 | if (td_rw(td)) { |
| 381 | struct timeval now; |
| 382 | unsigned long elapsed; |
| 383 | |
| 384 | gettimeofday(&now, NULL); |
| 385 | elapsed = mtime_since_now(&td->rwmix_switch); |
| 386 | |
| 387 | /* |
| 388 | * Check if it's time to seed a new data direction. |
| 389 | */ |
| 390 | if (elapsed >= td->rwmixcycle) { |
Jens Axboe | c1ee2ca | 2006-06-07 22:42:37 +0200 | [diff] [blame] | 391 | int v; |
Jens Axboe | a6ccc7b | 2006-06-02 10:14:15 +0200 | [diff] [blame] | 392 | long r; |
| 393 | |
Jens Axboe | c1ee2ca | 2006-06-07 22:42:37 +0200 | [diff] [blame] | 394 | r = os_random_long(&td->rwmix_state); |
| 395 | v = 1 + (int) (100.0 * (r / (RAND_MAX + 1.0))); |
Jens Axboe | a6ccc7b | 2006-06-02 10:14:15 +0200 | [diff] [blame] | 396 | if (v < td->rwmixread) |
| 397 | td->rwmix_ddir = DDIR_READ; |
| 398 | else |
| 399 | td->rwmix_ddir = DDIR_WRITE; |
| 400 | memcpy(&td->rwmix_switch, &now, sizeof(now)); |
| 401 | } |
| 402 | return td->rwmix_ddir; |
| 403 | } else if (td_read(td)) |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 404 | return DDIR_READ; |
| 405 | else |
| 406 | return DDIR_WRITE; |
| 407 | } |
| 408 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 409 | /* |
| 410 | * fill body of io_u->buf with random data and add a header with the |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 411 | * crc32 or md5 sum of that data. |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 412 | */ |
| 413 | static void populate_io_u(struct thread_data *td, struct io_u *io_u) |
| 414 | { |
| 415 | unsigned char *p = (unsigned char *) io_u->buf; |
| 416 | struct verify_header hdr; |
| 417 | |
| 418 | hdr.fio_magic = FIO_HDR_MAGIC; |
| 419 | hdr.len = io_u->buflen; |
| 420 | p += sizeof(hdr); |
| 421 | fill_random_bytes(td, p, io_u->buflen - sizeof(hdr)); |
| 422 | |
| 423 | if (td->verify == VERIFY_MD5) { |
| 424 | fill_md5(&hdr, p, io_u->buflen - sizeof(hdr)); |
| 425 | hdr.verify_type = VERIFY_MD5; |
| 426 | } else { |
| 427 | fill_crc32(&hdr, p, io_u->buflen - sizeof(hdr)); |
| 428 | hdr.verify_type = VERIFY_CRC32; |
| 429 | } |
| 430 | |
| 431 | memcpy(io_u->buf, &hdr, sizeof(hdr)); |
| 432 | } |
| 433 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 434 | static int td_io_prep(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 435 | { |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 436 | if (td->io_prep && td->io_prep(td, io_u)) |
| 437 | return 1; |
| 438 | |
| 439 | return 0; |
| 440 | } |
| 441 | |
Jens Axboe | b1ff340 | 2006-02-17 11:35:58 +0100 | [diff] [blame] | 442 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 443 | { |
| 444 | list_del(&io_u->list); |
| 445 | list_add(&io_u->list, &td->io_u_freelist); |
| 446 | td->cur_depth--; |
| 447 | } |
| 448 | |
Jens Axboe | 843a741 | 2006-06-01 21:14:21 -0700 | [diff] [blame] | 449 | static int fill_io_u(struct thread_data *td, struct io_u *io_u) |
| 450 | { |
| 451 | /* |
| 452 | * If using an iolog, grab next piece if any available. |
| 453 | */ |
| 454 | if (td->read_iolog) |
| 455 | return read_iolog_get(td, io_u); |
| 456 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 457 | /* |
| 458 | * No log, let the seq/rand engine retrieve the next position. |
| 459 | */ |
| 460 | if (!get_next_offset(td, &io_u->offset)) { |
| 461 | io_u->buflen = get_next_buflen(td); |
| 462 | |
| 463 | if (io_u->buflen) { |
| 464 | io_u->ddir = get_rw_ddir(td); |
Jens Axboe | 843a741 | 2006-06-01 21:14:21 -0700 | [diff] [blame] | 465 | |
| 466 | /* |
| 467 | * If using a write iolog, store this entry. |
| 468 | */ |
| 469 | if (td->write_iolog) |
| 470 | write_iolog_put(td, io_u); |
| 471 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 472 | return 0; |
| 473 | } |
| 474 | } |
| 475 | |
| 476 | return 1; |
| 477 | } |
| 478 | |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 479 | #define queue_full(td) list_empty(&(td)->io_u_freelist) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 480 | |
Jens Axboe | b1ff340 | 2006-02-17 11:35:58 +0100 | [diff] [blame] | 481 | struct io_u *__get_io_u(struct thread_data *td) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 482 | { |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 483 | struct io_u *io_u = NULL; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 484 | |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 485 | if (!queue_full(td)) { |
| 486 | io_u = list_entry(td->io_u_freelist.next, struct io_u, list); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 487 | |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 488 | io_u->error = 0; |
| 489 | io_u->resid = 0; |
| 490 | list_del(&io_u->list); |
| 491 | list_add(&io_u->list, &td->io_u_busylist); |
| 492 | td->cur_depth++; |
| 493 | } |
| 494 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 495 | return io_u; |
| 496 | } |
| 497 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 498 | /* |
| 499 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, |
| 500 | * etc. The returned io_u is fully ready to be prepped and submitted. |
| 501 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 502 | static struct io_u *get_io_u(struct thread_data *td) |
| 503 | { |
| 504 | struct io_u *io_u; |
| 505 | |
| 506 | io_u = __get_io_u(td); |
| 507 | if (!io_u) |
| 508 | return NULL; |
| 509 | |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 510 | if (td->zone_bytes >= td->zone_size) { |
| 511 | td->zone_bytes = 0; |
| 512 | td->last_pos += td->zone_skip; |
| 513 | } |
| 514 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 515 | if (fill_io_u(td, io_u)) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 516 | put_io_u(td, io_u); |
| 517 | return NULL; |
| 518 | } |
| 519 | |
Jens Axboe | 838a3cd | 2006-01-20 12:38:29 +0100 | [diff] [blame] | 520 | if (io_u->buflen + io_u->offset > td->real_file_size) |
| 521 | io_u->buflen = td->real_file_size - io_u->offset; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 522 | |
| 523 | if (!io_u->buflen) { |
| 524 | put_io_u(td, io_u); |
| 525 | return NULL; |
| 526 | } |
| 527 | |
Jens Axboe | 843a741 | 2006-06-01 21:14:21 -0700 | [diff] [blame] | 528 | if (!td->read_iolog && !td->sequential) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 529 | mark_random_map(td, io_u); |
| 530 | |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 531 | td->last_pos += io_u->buflen; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 532 | |
| 533 | if (td->verify != VERIFY_NONE) |
| 534 | populate_io_u(td, io_u); |
| 535 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 536 | if (td_io_prep(td, io_u)) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 537 | put_io_u(td, io_u); |
| 538 | return NULL; |
| 539 | } |
| 540 | |
| 541 | gettimeofday(&io_u->start_time, NULL); |
| 542 | return io_u; |
| 543 | } |
| 544 | |
| 545 | static inline void td_set_runstate(struct thread_data *td, int runstate) |
| 546 | { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 547 | td->runstate = runstate; |
| 548 | } |
| 549 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 550 | static int get_next_verify(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 551 | { |
| 552 | struct io_piece *ipo; |
| 553 | |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 554 | if (!list_empty(&td->io_hist_list)) { |
| 555 | ipo = list_entry(td->io_hist_list.next, struct io_piece, list); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 556 | |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 557 | list_del(&ipo->list); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 558 | |
Jens Axboe | 22f78b3 | 2006-06-07 11:30:07 +0200 | [diff] [blame] | 559 | io_u->offset = ipo->offset; |
| 560 | io_u->buflen = ipo->len; |
| 561 | io_u->ddir = DDIR_READ; |
| 562 | free(ipo); |
| 563 | return 0; |
| 564 | } |
| 565 | |
| 566 | return 1; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 567 | } |
| 568 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 569 | static int sync_td(struct thread_data *td) |
| 570 | { |
| 571 | if (td->io_sync) |
| 572 | return td->io_sync(td); |
| 573 | |
| 574 | return 0; |
| 575 | } |
| 576 | |
| 577 | static int io_u_getevents(struct thread_data *td, int min, int max, |
| 578 | struct timespec *t) |
| 579 | { |
| 580 | return td->io_getevents(td, min, max, t); |
| 581 | } |
| 582 | |
| 583 | static int io_u_queue(struct thread_data *td, struct io_u *io_u) |
| 584 | { |
| 585 | gettimeofday(&io_u->issue_time, NULL); |
| 586 | |
| 587 | return td->io_queue(td, io_u); |
| 588 | } |
| 589 | |
| 590 | #define iocb_time(iocb) ((unsigned long) (iocb)->data) |
| 591 | |
| 592 | static void io_completed(struct thread_data *td, struct io_u *io_u, |
| 593 | struct io_completion_data *icd) |
| 594 | { |
| 595 | struct timeval e; |
| 596 | unsigned long msec; |
| 597 | |
| 598 | gettimeofday(&e, NULL); |
| 599 | |
| 600 | if (!io_u->error) { |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 601 | unsigned int bytes = io_u->buflen - io_u->resid; |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 602 | const int idx = io_u->ddir; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 603 | |
| 604 | td->io_blocks[idx]++; |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 605 | td->io_bytes[idx] += bytes; |
| 606 | td->zone_bytes += bytes; |
| 607 | td->this_io_bytes[idx] += bytes; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 608 | |
| 609 | msec = mtime_since(&io_u->issue_time, &e); |
| 610 | |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 611 | add_clat_sample(td, idx, msec); |
| 612 | add_bw_sample(td, idx); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 613 | |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 614 | if ((td_rw(td) || td_write(td)) && idx == DDIR_WRITE) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 615 | log_io_piece(td, io_u); |
| 616 | |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 617 | icd->bytes_done[idx] += bytes; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 618 | } else |
| 619 | icd->error = io_u->error; |
| 620 | } |
| 621 | |
| 622 | static void ios_completed(struct thread_data *td,struct io_completion_data *icd) |
| 623 | { |
| 624 | struct io_u *io_u; |
| 625 | int i; |
| 626 | |
| 627 | icd->error = 0; |
| 628 | icd->bytes_done[0] = icd->bytes_done[1] = 0; |
| 629 | |
| 630 | for (i = 0; i < icd->nr; i++) { |
| 631 | io_u = td->io_event(td, i); |
| 632 | |
| 633 | io_completed(td, io_u, icd); |
| 634 | put_io_u(td, io_u); |
| 635 | } |
| 636 | } |
| 637 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 638 | /* |
| 639 | * When job exits, we can cancel the in-flight IO if we are using async |
| 640 | * io. Attempt to do so. |
| 641 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 642 | static void cleanup_pending_aio(struct thread_data *td) |
| 643 | { |
| 644 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0}; |
| 645 | struct list_head *entry, *n; |
| 646 | struct io_completion_data icd; |
| 647 | struct io_u *io_u; |
| 648 | int r; |
| 649 | |
| 650 | /* |
| 651 | * get immediately available events, if any |
| 652 | */ |
| 653 | r = io_u_getevents(td, 0, td->cur_depth, &ts); |
| 654 | if (r > 0) { |
| 655 | icd.nr = r; |
| 656 | ios_completed(td, &icd); |
| 657 | } |
| 658 | |
| 659 | /* |
| 660 | * now cancel remaining active events |
| 661 | */ |
| 662 | if (td->io_cancel) { |
| 663 | list_for_each_safe(entry, n, &td->io_u_busylist) { |
| 664 | io_u = list_entry(entry, struct io_u, list); |
| 665 | |
| 666 | r = td->io_cancel(td, io_u); |
| 667 | if (!r) |
| 668 | put_io_u(td, io_u); |
| 669 | } |
| 670 | } |
| 671 | |
| 672 | if (td->cur_depth) { |
| 673 | r = io_u_getevents(td, td->cur_depth, td->cur_depth, NULL); |
| 674 | if (r > 0) { |
| 675 | icd.nr = r; |
| 676 | ios_completed(td, &icd); |
| 677 | } |
| 678 | } |
| 679 | } |
| 680 | |
| 681 | static int do_io_u_verify(struct thread_data *td, struct io_u **io_u) |
| 682 | { |
| 683 | struct io_u *v_io_u = *io_u; |
| 684 | int ret = 0; |
| 685 | |
| 686 | if (v_io_u) { |
| 687 | ret = verify_io_u(v_io_u); |
| 688 | put_io_u(td, v_io_u); |
| 689 | *io_u = NULL; |
| 690 | } |
| 691 | |
| 692 | return ret; |
| 693 | } |
| 694 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 695 | /* |
| 696 | * The main verify engine. Runs over the writes we previusly submitted, |
| 697 | * reads the blocks back in, and checks the crc/md5 of the data. |
| 698 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 699 | static void do_verify(struct thread_data *td) |
| 700 | { |
| 701 | struct timeval t; |
| 702 | struct io_u *io_u, *v_io_u = NULL; |
| 703 | struct io_completion_data icd; |
| 704 | int ret; |
| 705 | |
| 706 | td_set_runstate(td, TD_VERIFYING); |
| 707 | |
| 708 | do { |
| 709 | if (td->terminate) |
| 710 | break; |
| 711 | |
| 712 | gettimeofday(&t, NULL); |
| 713 | if (runtime_exceeded(td, &t)) |
| 714 | break; |
| 715 | |
| 716 | io_u = __get_io_u(td); |
| 717 | if (!io_u) |
| 718 | break; |
| 719 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 720 | if (get_next_verify(td, io_u)) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 721 | put_io_u(td, io_u); |
| 722 | break; |
| 723 | } |
| 724 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 725 | if (td_io_prep(td, io_u)) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 726 | put_io_u(td, io_u); |
| 727 | break; |
| 728 | } |
| 729 | |
| 730 | ret = io_u_queue(td, io_u); |
| 731 | if (ret) { |
| 732 | put_io_u(td, io_u); |
| 733 | td_verror(td, ret); |
| 734 | break; |
| 735 | } |
| 736 | |
| 737 | /* |
| 738 | * we have one pending to verify, do that while |
| 739 | * we are doing io on the next one |
| 740 | */ |
| 741 | if (do_io_u_verify(td, &v_io_u)) |
| 742 | break; |
| 743 | |
| 744 | ret = io_u_getevents(td, 1, 1, NULL); |
| 745 | if (ret != 1) { |
| 746 | if (ret < 0) |
| 747 | td_verror(td, ret); |
| 748 | break; |
| 749 | } |
| 750 | |
| 751 | v_io_u = td->io_event(td, 0); |
| 752 | icd.nr = 1; |
| 753 | icd.error = 0; |
| 754 | io_completed(td, v_io_u, &icd); |
| 755 | |
| 756 | if (icd.error) { |
| 757 | td_verror(td, icd.error); |
| 758 | put_io_u(td, v_io_u); |
| 759 | v_io_u = NULL; |
| 760 | break; |
| 761 | } |
| 762 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 763 | /* |
| 764 | * if we can't submit more io, we need to verify now |
| 765 | */ |
| 766 | if (queue_full(td) && do_io_u_verify(td, &v_io_u)) |
| 767 | break; |
| 768 | |
| 769 | } while (1); |
| 770 | |
| 771 | do_io_u_verify(td, &v_io_u); |
| 772 | |
| 773 | if (td->cur_depth) |
| 774 | cleanup_pending_aio(td); |
| 775 | |
| 776 | td_set_runstate(td, TD_RUNNING); |
| 777 | } |
| 778 | |
Jens Axboe | 32cd46a | 2006-06-07 13:40:40 +0200 | [diff] [blame] | 779 | /* |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 780 | * Main IO worker function. It retrieves io_u's to process and queues |
Jens Axboe | 32cd46a | 2006-06-07 13:40:40 +0200 | [diff] [blame] | 781 | * and reaps them, checking for rate and errors along the way. |
| 782 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 783 | static void do_io(struct thread_data *td) |
| 784 | { |
| 785 | struct io_completion_data icd; |
| 786 | struct timeval s, e; |
| 787 | unsigned long usec; |
| 788 | |
Jens Axboe | 5853e5a | 2006-06-08 14:41:05 +0200 | [diff] [blame] | 789 | td_set_runstate(td, TD_RUNNING); |
| 790 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 791 | while (td->this_io_bytes[td->ddir] < td->io_size) { |
| 792 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0}; |
| 793 | struct timespec *timeout; |
| 794 | int ret, min_evts = 0; |
| 795 | struct io_u *io_u; |
| 796 | |
| 797 | if (td->terminate) |
| 798 | break; |
| 799 | |
| 800 | io_u = get_io_u(td); |
| 801 | if (!io_u) |
| 802 | break; |
| 803 | |
| 804 | memcpy(&s, &io_u->start_time, sizeof(s)); |
| 805 | |
| 806 | ret = io_u_queue(td, io_u); |
| 807 | if (ret) { |
| 808 | put_io_u(td, io_u); |
| 809 | td_verror(td, ret); |
| 810 | break; |
| 811 | } |
| 812 | |
| 813 | add_slat_sample(td, io_u->ddir, mtime_since(&io_u->start_time, &io_u->issue_time)); |
| 814 | |
| 815 | if (td->cur_depth < td->iodepth) { |
| 816 | timeout = &ts; |
| 817 | min_evts = 0; |
| 818 | } else { |
| 819 | timeout = NULL; |
| 820 | min_evts = 1; |
| 821 | } |
| 822 | |
| 823 | ret = io_u_getevents(td, min_evts, td->cur_depth, timeout); |
| 824 | if (ret < 0) { |
| 825 | td_verror(td, ret); |
| 826 | break; |
| 827 | } else if (!ret) |
| 828 | continue; |
| 829 | |
| 830 | icd.nr = ret; |
| 831 | ios_completed(td, &icd); |
| 832 | if (icd.error) { |
| 833 | td_verror(td, icd.error); |
| 834 | break; |
| 835 | } |
| 836 | |
| 837 | /* |
| 838 | * the rate is batched for now, it should work for batches |
| 839 | * of completions except the very first one which may look |
| 840 | * a little bursty |
| 841 | */ |
| 842 | gettimeofday(&e, NULL); |
| 843 | usec = utime_since(&s, &e); |
| 844 | |
| 845 | rate_throttle(td, usec, icd.bytes_done[td->ddir]); |
| 846 | |
| 847 | if (check_min_rate(td, &e)) { |
| 848 | td_verror(td, ENOMEM); |
| 849 | break; |
| 850 | } |
| 851 | |
| 852 | if (runtime_exceeded(td, &e)) |
| 853 | break; |
| 854 | |
| 855 | if (td->thinktime) |
| 856 | usec_sleep(td, td->thinktime); |
| 857 | |
| 858 | if (should_fsync(td) && td->fsync_blocks && |
| 859 | (td->io_blocks[DDIR_WRITE] % td->fsync_blocks) == 0) |
| 860 | sync_td(td); |
| 861 | } |
| 862 | |
| 863 | if (td->cur_depth) |
| 864 | cleanup_pending_aio(td); |
| 865 | |
Jens Axboe | 5853e5a | 2006-06-08 14:41:05 +0200 | [diff] [blame] | 866 | if (should_fsync(td) && td->end_fsync) { |
| 867 | td_set_runstate(td, TD_FSYNCING); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 868 | sync_td(td); |
Jens Axboe | 5853e5a | 2006-06-08 14:41:05 +0200 | [diff] [blame] | 869 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 870 | } |
| 871 | |
| 872 | static void cleanup_io(struct thread_data *td) |
| 873 | { |
| 874 | if (td->io_cleanup) |
| 875 | td->io_cleanup(td); |
| 876 | } |
| 877 | |
| 878 | static int init_io(struct thread_data *td) |
| 879 | { |
| 880 | if (td->io_engine == FIO_SYNCIO) |
| 881 | return fio_syncio_init(td); |
| 882 | else if (td->io_engine == FIO_MMAPIO) |
| 883 | return fio_mmapio_init(td); |
| 884 | else if (td->io_engine == FIO_LIBAIO) |
| 885 | return fio_libaio_init(td); |
| 886 | else if (td->io_engine == FIO_POSIXAIO) |
| 887 | return fio_posixaio_init(td); |
| 888 | else if (td->io_engine == FIO_SGIO) |
| 889 | return fio_sgio_init(td); |
Jens Axboe | 8756e4d | 2006-05-27 20:24:53 +0200 | [diff] [blame] | 890 | else if (td->io_engine == FIO_SPLICEIO) |
| 891 | return fio_spliceio_init(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 892 | else { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 893 | log_err("bad io_engine %d\n", td->io_engine); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 894 | return 1; |
| 895 | } |
| 896 | } |
| 897 | |
| 898 | static void cleanup_io_u(struct thread_data *td) |
| 899 | { |
| 900 | struct list_head *entry, *n; |
| 901 | struct io_u *io_u; |
| 902 | |
| 903 | list_for_each_safe(entry, n, &td->io_u_freelist) { |
| 904 | io_u = list_entry(entry, struct io_u, list); |
| 905 | |
| 906 | list_del(&io_u->list); |
| 907 | free(io_u); |
| 908 | } |
| 909 | |
| 910 | if (td->mem_type == MEM_MALLOC) |
| 911 | free(td->orig_buffer); |
| 912 | else if (td->mem_type == MEM_SHM) { |
| 913 | struct shmid_ds sbuf; |
| 914 | |
| 915 | shmdt(td->orig_buffer); |
| 916 | shmctl(td->shm_id, IPC_RMID, &sbuf); |
| 917 | } else if (td->mem_type == MEM_MMAP) |
| 918 | munmap(td->orig_buffer, td->orig_buffer_size); |
| 919 | else |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 920 | log_err("Bad memory type %d\n", td->mem_type); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 921 | |
| 922 | td->orig_buffer = NULL; |
| 923 | } |
| 924 | |
| 925 | static int init_io_u(struct thread_data *td) |
| 926 | { |
| 927 | struct io_u *io_u; |
| 928 | int i, max_units; |
| 929 | char *p; |
| 930 | |
| 931 | if (td->io_engine & FIO_SYNCIO) |
| 932 | max_units = 1; |
| 933 | else |
| 934 | max_units = td->iodepth; |
| 935 | |
| 936 | td->orig_buffer_size = td->max_bs * max_units + MASK; |
| 937 | |
| 938 | if (td->mem_type == MEM_MALLOC) |
| 939 | td->orig_buffer = malloc(td->orig_buffer_size); |
| 940 | else if (td->mem_type == MEM_SHM) { |
| 941 | td->shm_id = shmget(IPC_PRIVATE, td->orig_buffer_size, IPC_CREAT | 0600); |
| 942 | if (td->shm_id < 0) { |
| 943 | td_verror(td, errno); |
| 944 | perror("shmget"); |
| 945 | return 1; |
| 946 | } |
| 947 | |
| 948 | td->orig_buffer = shmat(td->shm_id, NULL, 0); |
| 949 | if (td->orig_buffer == (void *) -1) { |
| 950 | td_verror(td, errno); |
| 951 | perror("shmat"); |
| 952 | td->orig_buffer = NULL; |
| 953 | return 1; |
| 954 | } |
| 955 | } else if (td->mem_type == MEM_MMAP) { |
| 956 | td->orig_buffer = mmap(NULL, td->orig_buffer_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | OS_MAP_ANON, 0, 0); |
| 957 | if (td->orig_buffer == MAP_FAILED) { |
| 958 | td_verror(td, errno); |
| 959 | perror("mmap"); |
| 960 | td->orig_buffer = NULL; |
| 961 | return 1; |
| 962 | } |
| 963 | } |
| 964 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 965 | p = ALIGN(td->orig_buffer); |
| 966 | for (i = 0; i < max_units; i++) { |
| 967 | io_u = malloc(sizeof(*io_u)); |
| 968 | memset(io_u, 0, sizeof(*io_u)); |
| 969 | INIT_LIST_HEAD(&io_u->list); |
| 970 | |
| 971 | io_u->buf = p + td->max_bs * i; |
Jens Axboe | b1ff340 | 2006-02-17 11:35:58 +0100 | [diff] [blame] | 972 | io_u->index = i; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 973 | list_add(&io_u->list, &td->io_u_freelist); |
| 974 | } |
| 975 | |
| 976 | return 0; |
| 977 | } |
| 978 | |
Jens Axboe | 9cc935a | 2006-06-13 09:11:18 +0200 | [diff] [blame] | 979 | static int create_file(struct thread_data *td, unsigned long long size) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 980 | { |
| 981 | unsigned long long left; |
| 982 | unsigned int bs; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 983 | char *b; |
Jens Axboe | 9cc935a | 2006-06-13 09:11:18 +0200 | [diff] [blame] | 984 | int r; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 985 | |
| 986 | /* |
| 987 | * unless specifically asked for overwrite, let normal io extend it |
| 988 | */ |
Jens Axboe | 9cc935a | 2006-06-13 09:11:18 +0200 | [diff] [blame] | 989 | if (!td->overwrite) { |
Jens Axboe | c20d25b | 2006-06-12 14:56:43 +0200 | [diff] [blame] | 990 | td->real_file_size = size; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 991 | return 0; |
Jens Axboe | c20d25b | 2006-06-12 14:56:43 +0200 | [diff] [blame] | 992 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 993 | |
| 994 | if (!size) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 995 | log_err("Need size for create\n"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 996 | td_verror(td, EINVAL); |
| 997 | return 1; |
| 998 | } |
| 999 | |
Jens Axboe | 88c6ed8 | 2006-06-09 11:28:10 +0200 | [diff] [blame] | 1000 | temp_stall_ts = 1; |
Jens Axboe | 9cc935a | 2006-06-13 09:11:18 +0200 | [diff] [blame] | 1001 | fprintf(f_out, "%s: Laying out IO file (%LuMiB)\n",td->name,size >> 20); |
Jens Axboe | 88c6ed8 | 2006-06-09 11:28:10 +0200 | [diff] [blame] | 1002 | |
Jens Axboe | 9cc935a | 2006-06-13 09:11:18 +0200 | [diff] [blame] | 1003 | td->fd = open(td->file_name, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1004 | if (td->fd < 0) { |
| 1005 | td_verror(td, errno); |
Jens Axboe | c20d25b | 2006-06-12 14:56:43 +0200 | [diff] [blame] | 1006 | goto done_noclose; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1007 | } |
| 1008 | |
Jens Axboe | 9cc935a | 2006-06-13 09:11:18 +0200 | [diff] [blame] | 1009 | if (ftruncate(td->fd, td->file_size) == -1) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1010 | td_verror(td, errno); |
Jens Axboe | c20d25b | 2006-06-12 14:56:43 +0200 | [diff] [blame] | 1011 | goto done; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1012 | } |
| 1013 | |
| 1014 | td->io_size = td->file_size; |
| 1015 | b = malloc(td->max_bs); |
| 1016 | memset(b, 0, td->max_bs); |
| 1017 | |
| 1018 | left = size; |
| 1019 | while (left && !td->terminate) { |
| 1020 | bs = td->max_bs; |
| 1021 | if (bs > left) |
| 1022 | bs = left; |
| 1023 | |
| 1024 | r = write(td->fd, b, bs); |
| 1025 | |
| 1026 | if (r == (int) bs) { |
| 1027 | left -= bs; |
| 1028 | continue; |
| 1029 | } else { |
| 1030 | if (r < 0) |
| 1031 | td_verror(td, errno); |
| 1032 | else |
| 1033 | td_verror(td, EIO); |
| 1034 | |
| 1035 | break; |
| 1036 | } |
| 1037 | } |
| 1038 | |
| 1039 | if (td->terminate) |
| 1040 | unlink(td->file_name); |
| 1041 | else if (td->create_fsync) |
| 1042 | fsync(td->fd); |
| 1043 | |
Jens Axboe | c20d25b | 2006-06-12 14:56:43 +0200 | [diff] [blame] | 1044 | free(b); |
| 1045 | done: |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1046 | close(td->fd); |
| 1047 | td->fd = -1; |
Jens Axboe | c20d25b | 2006-06-12 14:56:43 +0200 | [diff] [blame] | 1048 | done_noclose: |
| 1049 | temp_stall_ts = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1050 | return 0; |
| 1051 | } |
| 1052 | |
| 1053 | static int file_size(struct thread_data *td) |
| 1054 | { |
| 1055 | struct stat st; |
| 1056 | |
Jens Axboe | c20d25b | 2006-06-12 14:56:43 +0200 | [diff] [blame] | 1057 | if (td->overwrite) { |
| 1058 | if (fstat(td->fd, &st) == -1) { |
| 1059 | td_verror(td, errno); |
| 1060 | return 1; |
| 1061 | } |
| 1062 | |
| 1063 | td->real_file_size = st.st_size; |
| 1064 | |
| 1065 | if (!td->file_size || td->file_size > td->real_file_size) |
| 1066 | td->file_size = td->real_file_size; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1067 | } |
| 1068 | |
Jens Axboe | e8e387c | 2006-05-05 11:11:22 +0200 | [diff] [blame] | 1069 | td->file_size -= td->file_offset; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1070 | return 0; |
| 1071 | } |
| 1072 | |
| 1073 | static int bdev_size(struct thread_data *td) |
| 1074 | { |
Jens Axboe | 9104f87 | 2005-12-28 23:50:45 +0100 | [diff] [blame] | 1075 | unsigned long long bytes; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1076 | int r; |
| 1077 | |
| 1078 | r = blockdev_size(td->fd, &bytes); |
| 1079 | if (r) { |
| 1080 | td_verror(td, r); |
| 1081 | return 1; |
| 1082 | } |
| 1083 | |
Jens Axboe | 838a3cd | 2006-01-20 12:38:29 +0100 | [diff] [blame] | 1084 | td->real_file_size = bytes; |
| 1085 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1086 | /* |
| 1087 | * no extend possibilities, so limit size to device size if too large |
| 1088 | */ |
Jens Axboe | 838a3cd | 2006-01-20 12:38:29 +0100 | [diff] [blame] | 1089 | if (!td->file_size || td->file_size > td->real_file_size) |
| 1090 | td->file_size = td->real_file_size; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1091 | |
Jens Axboe | e8e387c | 2006-05-05 11:11:22 +0200 | [diff] [blame] | 1092 | td->file_size -= td->file_offset; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1093 | return 0; |
| 1094 | } |
| 1095 | |
| 1096 | static int get_file_size(struct thread_data *td) |
| 1097 | { |
Jens Axboe | 0af7b54 | 2006-02-17 10:10:12 +0100 | [diff] [blame] | 1098 | int ret = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1099 | |
| 1100 | if (td->filetype == FIO_TYPE_FILE) |
| 1101 | ret = file_size(td); |
Jens Axboe | 0af7b54 | 2006-02-17 10:10:12 +0100 | [diff] [blame] | 1102 | else if (td->filetype == FIO_TYPE_BD) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1103 | ret = bdev_size(td); |
Jens Axboe | 0af7b54 | 2006-02-17 10:10:12 +0100 | [diff] [blame] | 1104 | else |
| 1105 | td->real_file_size = -1; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1106 | |
| 1107 | if (ret) |
| 1108 | return ret; |
| 1109 | |
Jens Axboe | e8e387c | 2006-05-05 11:11:22 +0200 | [diff] [blame] | 1110 | if (td->file_offset > td->real_file_size) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 1111 | log_err("%s: offset extends end (%Lu > %Lu)\n", td->name, td->file_offset, td->real_file_size); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1112 | return 1; |
| 1113 | } |
| 1114 | |
Jens Axboe | 838a3cd | 2006-01-20 12:38:29 +0100 | [diff] [blame] | 1115 | td->io_size = td->file_size; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1116 | if (td->io_size == 0) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 1117 | log_err("%s: no io blocks\n", td->name); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1118 | td_verror(td, EINVAL); |
| 1119 | return 1; |
| 1120 | } |
| 1121 | |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 1122 | if (!td->zone_size) |
| 1123 | td->zone_size = td->io_size; |
| 1124 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1125 | td->total_io_size = td->io_size * td->loops; |
| 1126 | return 0; |
| 1127 | } |
| 1128 | |
| 1129 | static int setup_file_mmap(struct thread_data *td) |
| 1130 | { |
| 1131 | int flags; |
| 1132 | |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 1133 | if (td_rw(td)) |
| 1134 | flags = PROT_READ | PROT_WRITE; |
| 1135 | else if (td_write(td)) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1136 | flags = PROT_WRITE; |
| 1137 | |
| 1138 | if (td->verify != VERIFY_NONE) |
| 1139 | flags |= PROT_READ; |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 1140 | } else |
| 1141 | flags = PROT_READ; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1142 | |
| 1143 | td->mmap = mmap(NULL, td->file_size, flags, MAP_SHARED, td->fd, td->file_offset); |
| 1144 | if (td->mmap == MAP_FAILED) { |
| 1145 | td->mmap = NULL; |
| 1146 | td_verror(td, errno); |
| 1147 | return 1; |
| 1148 | } |
| 1149 | |
| 1150 | if (td->invalidate_cache) { |
| 1151 | if (madvise(td->mmap, td->file_size, MADV_DONTNEED) < 0) { |
| 1152 | td_verror(td, errno); |
| 1153 | return 1; |
| 1154 | } |
| 1155 | } |
| 1156 | |
| 1157 | if (td->sequential) { |
| 1158 | if (madvise(td->mmap, td->file_size, MADV_SEQUENTIAL) < 0) { |
| 1159 | td_verror(td, errno); |
| 1160 | return 1; |
| 1161 | } |
| 1162 | } else { |
| 1163 | if (madvise(td->mmap, td->file_size, MADV_RANDOM) < 0) { |
| 1164 | td_verror(td, errno); |
| 1165 | return 1; |
| 1166 | } |
| 1167 | } |
| 1168 | |
| 1169 | return 0; |
| 1170 | } |
| 1171 | |
| 1172 | static int setup_file_plain(struct thread_data *td) |
| 1173 | { |
| 1174 | if (td->invalidate_cache) { |
| 1175 | if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_DONTNEED) < 0) { |
| 1176 | td_verror(td, errno); |
| 1177 | return 1; |
| 1178 | } |
| 1179 | } |
| 1180 | |
| 1181 | if (td->sequential) { |
| 1182 | if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_SEQUENTIAL) < 0) { |
| 1183 | td_verror(td, errno); |
| 1184 | return 1; |
| 1185 | } |
| 1186 | } else { |
| 1187 | if (fadvise(td->fd, td->file_offset, td->file_size, POSIX_FADV_RANDOM) < 0) { |
| 1188 | td_verror(td, errno); |
| 1189 | return 1; |
| 1190 | } |
| 1191 | } |
| 1192 | |
| 1193 | return 0; |
| 1194 | } |
| 1195 | |
| 1196 | static int setup_file(struct thread_data *td) |
| 1197 | { |
| 1198 | struct stat st; |
| 1199 | int flags = 0; |
| 1200 | |
| 1201 | if (stat(td->file_name, &st) == -1) { |
| 1202 | if (errno != ENOENT) { |
| 1203 | td_verror(td, errno); |
| 1204 | return 1; |
| 1205 | } |
| 1206 | if (!td->create_file) { |
| 1207 | td_verror(td, ENOENT); |
| 1208 | return 1; |
| 1209 | } |
Jens Axboe | 9cc935a | 2006-06-13 09:11:18 +0200 | [diff] [blame] | 1210 | if (create_file(td, td->file_size)) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1211 | return 1; |
Jens Axboe | 9cc935a | 2006-06-13 09:11:18 +0200 | [diff] [blame] | 1212 | } else if (td->filetype == FIO_TYPE_FILE && |
| 1213 | st.st_size < (off_t) td->file_size) { |
| 1214 | if (create_file(td, td->file_size)) |
| 1215 | return 1; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1216 | } |
| 1217 | |
| 1218 | if (td->odirect) |
Jens Axboe | 2c0ecd2 | 2006-06-08 13:25:41 +0200 | [diff] [blame] | 1219 | flags |= OS_O_DIRECT; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1220 | |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 1221 | if (td_write(td) || td_rw(td)) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1222 | if (td->filetype == FIO_TYPE_FILE) { |
| 1223 | if (!td->overwrite) |
| 1224 | flags |= O_TRUNC; |
| 1225 | |
| 1226 | flags |= O_CREAT; |
| 1227 | } |
| 1228 | if (td->sync_io) |
| 1229 | flags |= O_SYNC; |
| 1230 | |
| 1231 | flags |= O_RDWR; |
| 1232 | |
| 1233 | td->fd = open(td->file_name, flags, 0600); |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 1234 | } else { |
| 1235 | if (td->filetype == FIO_TYPE_CHAR) |
| 1236 | flags |= O_RDWR; |
| 1237 | else |
| 1238 | flags |= O_RDONLY; |
| 1239 | |
| 1240 | td->fd = open(td->file_name, flags); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1241 | } |
| 1242 | |
| 1243 | if (td->fd == -1) { |
| 1244 | td_verror(td, errno); |
| 1245 | return 1; |
| 1246 | } |
| 1247 | |
| 1248 | if (get_file_size(td)) |
| 1249 | return 1; |
| 1250 | |
| 1251 | if (td->io_engine != FIO_MMAPIO) |
| 1252 | return setup_file_plain(td); |
| 1253 | else |
| 1254 | return setup_file_mmap(td); |
| 1255 | } |
| 1256 | |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 1257 | static int switch_ioscheduler(struct thread_data *td) |
| 1258 | { |
| 1259 | char tmp[256], tmp2[128]; |
| 1260 | FILE *f; |
| 1261 | int ret; |
| 1262 | |
| 1263 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
| 1264 | |
| 1265 | f = fopen(tmp, "r+"); |
| 1266 | if (!f) { |
| 1267 | td_verror(td, errno); |
| 1268 | return 1; |
| 1269 | } |
| 1270 | |
| 1271 | /* |
| 1272 | * Set io scheduler. |
| 1273 | */ |
| 1274 | ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f); |
| 1275 | if (ferror(f) || ret != 1) { |
| 1276 | td_verror(td, errno); |
| 1277 | fclose(f); |
| 1278 | return 1; |
| 1279 | } |
| 1280 | |
| 1281 | rewind(f); |
| 1282 | |
| 1283 | /* |
| 1284 | * Read back and check that the selected scheduler is now the default. |
| 1285 | */ |
| 1286 | ret = fread(tmp, 1, sizeof(tmp), f); |
| 1287 | if (ferror(f) || ret < 0) { |
| 1288 | td_verror(td, errno); |
| 1289 | fclose(f); |
| 1290 | return 1; |
| 1291 | } |
| 1292 | |
| 1293 | sprintf(tmp2, "[%s]", td->ioscheduler); |
| 1294 | if (!strstr(tmp, tmp2)) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 1295 | log_err("fio: io scheduler %s not found\n", td->ioscheduler); |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 1296 | td_verror(td, EINVAL); |
| 1297 | fclose(f); |
| 1298 | return 1; |
| 1299 | } |
| 1300 | |
| 1301 | fclose(f); |
| 1302 | return 0; |
| 1303 | } |
| 1304 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1305 | static void clear_io_state(struct thread_data *td) |
| 1306 | { |
| 1307 | if (td->io_engine == FIO_SYNCIO) |
| 1308 | lseek(td->fd, SEEK_SET, 0); |
| 1309 | |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 1310 | td->last_pos = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1311 | td->stat_io_bytes[0] = td->stat_io_bytes[1] = 0; |
| 1312 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 1313 | td->zone_bytes = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1314 | |
| 1315 | if (td->file_map) |
| 1316 | memset(td->file_map, 0, td->num_maps * sizeof(long)); |
| 1317 | } |
| 1318 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 1319 | /* |
| 1320 | * Entry point for the thread based jobs. The process based jobs end up |
| 1321 | * here as well, after a little setup. |
| 1322 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1323 | static void *thread_main(void *data) |
| 1324 | { |
| 1325 | struct thread_data *td = data; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1326 | |
| 1327 | if (!td->use_thread) |
| 1328 | setsid(); |
| 1329 | |
| 1330 | td->pid = getpid(); |
| 1331 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 1332 | INIT_LIST_HEAD(&td->io_u_freelist); |
| 1333 | INIT_LIST_HEAD(&td->io_u_busylist); |
| 1334 | INIT_LIST_HEAD(&td->io_hist_list); |
| 1335 | INIT_LIST_HEAD(&td->io_log_list); |
| 1336 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1337 | if (init_io_u(td)) |
| 1338 | goto err; |
| 1339 | |
| 1340 | if (fio_setaffinity(td) == -1) { |
| 1341 | td_verror(td, errno); |
| 1342 | goto err; |
| 1343 | } |
| 1344 | |
| 1345 | if (init_io(td)) |
| 1346 | goto err; |
| 1347 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 1348 | if (init_iolog(td)) |
| 1349 | goto err; |
| 1350 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1351 | if (td->ioprio) { |
| 1352 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
| 1353 | td_verror(td, errno); |
| 1354 | goto err; |
| 1355 | } |
| 1356 | } |
| 1357 | |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 1358 | if (nice(td->nice) < 0) { |
| 1359 | td_verror(td, errno); |
| 1360 | goto err; |
| 1361 | } |
| 1362 | |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1363 | if (init_random_state(td)) |
| 1364 | goto err; |
| 1365 | |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 1366 | if (td->ioscheduler && switch_ioscheduler(td)) |
| 1367 | goto err; |
| 1368 | |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1369 | td_set_runstate(td, TD_INITIALIZED); |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 1370 | fio_sem_up(&startup_sem); |
| 1371 | fio_sem_down(&td->mutex); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1372 | |
| 1373 | if (!td->create_serialize && setup_file(td)) |
| 1374 | goto err; |
| 1375 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1376 | gettimeofday(&td->epoch, NULL); |
| 1377 | |
Jens Axboe | 4e0ba8a | 2006-06-06 09:36:28 +0200 | [diff] [blame] | 1378 | if (td->exec_prerun) |
| 1379 | system(td->exec_prerun); |
| 1380 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1381 | while (td->loops--) { |
| 1382 | getrusage(RUSAGE_SELF, &td->ru_start); |
| 1383 | gettimeofday(&td->start, NULL); |
| 1384 | memcpy(&td->stat_sample_time, &td->start, sizeof(td->start)); |
| 1385 | |
| 1386 | if (td->ratemin) |
| 1387 | memcpy(&td->lastrate, &td->stat_sample_time, sizeof(td->lastrate)); |
| 1388 | |
| 1389 | clear_io_state(td); |
| 1390 | prune_io_piece_log(td); |
| 1391 | |
| 1392 | do_io(td); |
| 1393 | |
| 1394 | td->runtime[td->ddir] += mtime_since_now(&td->start); |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 1395 | if (td_rw(td) && td->io_bytes[td->ddir ^ 1]) |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 1396 | td->runtime[td->ddir ^ 1] = td->runtime[td->ddir]; |
| 1397 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1398 | update_rusage_stat(td); |
| 1399 | |
| 1400 | if (td->error || td->terminate) |
| 1401 | break; |
| 1402 | |
| 1403 | if (td->verify == VERIFY_NONE) |
| 1404 | continue; |
| 1405 | |
| 1406 | clear_io_state(td); |
| 1407 | gettimeofday(&td->start, NULL); |
| 1408 | |
| 1409 | do_verify(td); |
| 1410 | |
| 1411 | td->runtime[DDIR_READ] += mtime_since_now(&td->start); |
| 1412 | |
| 1413 | if (td->error || td->terminate) |
| 1414 | break; |
| 1415 | } |
| 1416 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1417 | if (td->bw_log) |
| 1418 | finish_log(td, td->bw_log, "bw"); |
| 1419 | if (td->slat_log) |
| 1420 | finish_log(td, td->slat_log, "slat"); |
| 1421 | if (td->clat_log) |
| 1422 | finish_log(td, td->clat_log, "clat"); |
Jens Axboe | 843a741 | 2006-06-01 21:14:21 -0700 | [diff] [blame] | 1423 | if (td->write_iolog) |
| 1424 | write_iolog_close(td); |
Jens Axboe | 4e0ba8a | 2006-06-06 09:36:28 +0200 | [diff] [blame] | 1425 | if (td->exec_postrun) |
| 1426 | system(td->exec_postrun); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1427 | |
| 1428 | if (exitall_on_terminate) |
| 1429 | terminate_threads(td->groupid); |
| 1430 | |
| 1431 | err: |
| 1432 | if (td->fd != -1) { |
| 1433 | close(td->fd); |
| 1434 | td->fd = -1; |
| 1435 | } |
| 1436 | if (td->mmap) |
| 1437 | munmap(td->mmap, td->file_size); |
| 1438 | cleanup_io(td); |
| 1439 | cleanup_io_u(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1440 | td_set_runstate(td, TD_EXITED); |
| 1441 | return NULL; |
| 1442 | |
| 1443 | } |
| 1444 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 1445 | /* |
| 1446 | * We cannot pass the td data into a forked process, so attach the td and |
| 1447 | * pass it to the thread worker. |
| 1448 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1449 | static void *fork_main(int shmid, int offset) |
| 1450 | { |
| 1451 | struct thread_data *td; |
| 1452 | void *data; |
| 1453 | |
| 1454 | data = shmat(shmid, NULL, 0); |
| 1455 | if (data == (void *) -1) { |
| 1456 | perror("shmat"); |
| 1457 | return NULL; |
| 1458 | } |
| 1459 | |
| 1460 | td = data + offset * sizeof(struct thread_data); |
| 1461 | thread_main(td); |
| 1462 | shmdt(data); |
| 1463 | return NULL; |
| 1464 | } |
| 1465 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 1466 | /* |
| 1467 | * Sets the status of the 'td' in the printed status map. |
| 1468 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1469 | static void check_str_update(struct thread_data *td) |
| 1470 | { |
| 1471 | char c = run_str[td->thread_number - 1]; |
| 1472 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1473 | switch (td->runstate) { |
| 1474 | case TD_REAPED: |
| 1475 | c = '_'; |
| 1476 | break; |
| 1477 | case TD_EXITED: |
| 1478 | c = 'E'; |
| 1479 | break; |
| 1480 | case TD_RUNNING: |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 1481 | if (td_rw(td)) { |
| 1482 | if (td->sequential) |
| 1483 | c = 'M'; |
| 1484 | else |
| 1485 | c = 'm'; |
| 1486 | } else if (td_read(td)) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1487 | if (td->sequential) |
| 1488 | c = 'R'; |
| 1489 | else |
| 1490 | c = 'r'; |
| 1491 | } else { |
| 1492 | if (td->sequential) |
| 1493 | c = 'W'; |
| 1494 | else |
| 1495 | c = 'w'; |
| 1496 | } |
| 1497 | break; |
| 1498 | case TD_VERIFYING: |
| 1499 | c = 'V'; |
| 1500 | break; |
Jens Axboe | 5853e5a | 2006-06-08 14:41:05 +0200 | [diff] [blame] | 1501 | case TD_FSYNCING: |
| 1502 | c = 'F'; |
| 1503 | break; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1504 | case TD_CREATED: |
| 1505 | c = 'C'; |
| 1506 | break; |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1507 | case TD_INITIALIZED: |
| 1508 | c = 'I'; |
| 1509 | break; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1510 | case TD_NOT_CREATED: |
| 1511 | c = 'P'; |
| 1512 | break; |
| 1513 | default: |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 1514 | log_err("state %d\n", td->runstate); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1515 | } |
| 1516 | |
| 1517 | run_str[td->thread_number - 1] = c; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1518 | } |
| 1519 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 1520 | /* |
| 1521 | * Convert seconds to a printable string. |
| 1522 | */ |
Jens Axboe | 5289b84 | 2005-12-08 20:47:28 +0100 | [diff] [blame] | 1523 | static void eta_to_str(char *str, int eta_sec) |
| 1524 | { |
| 1525 | unsigned int d, h, m, s; |
| 1526 | static int always_d, always_h; |
| 1527 | |
| 1528 | d = h = m = s = 0; |
| 1529 | |
| 1530 | s = eta_sec % 60; |
| 1531 | eta_sec /= 60; |
| 1532 | m = eta_sec % 60; |
| 1533 | eta_sec /= 60; |
| 1534 | h = eta_sec % 24; |
| 1535 | eta_sec /= 24; |
| 1536 | d = eta_sec; |
| 1537 | |
| 1538 | if (d || always_d) { |
| 1539 | always_d = 1; |
| 1540 | str += sprintf(str, "%02dd:", d); |
| 1541 | } |
| 1542 | if (h || always_h) { |
| 1543 | always_h = 1; |
| 1544 | str += sprintf(str, "%02dh:", h); |
| 1545 | } |
| 1546 | |
| 1547 | str += sprintf(str, "%02dm:", m); |
| 1548 | str += sprintf(str, "%02ds", s); |
| 1549 | } |
| 1550 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 1551 | /* |
| 1552 | * Best effort calculation of the estimated pending runtime of a job. |
| 1553 | */ |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1554 | static int thread_eta(struct thread_data *td, unsigned long elapsed) |
| 1555 | { |
| 1556 | unsigned long long bytes_total, bytes_done; |
| 1557 | unsigned int eta_sec = 0; |
| 1558 | |
| 1559 | bytes_total = td->total_io_size; |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 1560 | |
| 1561 | /* |
| 1562 | * if writing, bytes_total will be twice the size. If mixing, |
| 1563 | * assume a 50/50 split and thus bytes_total will be 50% larger. |
| 1564 | */ |
| 1565 | if (td->verify) { |
| 1566 | if (td_rw(td)) |
| 1567 | bytes_total = bytes_total * 3 / 2; |
| 1568 | else |
| 1569 | bytes_total <<= 1; |
| 1570 | } |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1571 | if (td->zone_size && td->zone_skip) |
| 1572 | bytes_total /= (td->zone_skip / td->zone_size); |
| 1573 | |
| 1574 | if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING) { |
| 1575 | double perc; |
Jens Axboe | 8b611c3 | 2006-05-25 01:46:59 +0200 | [diff] [blame] | 1576 | |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1577 | bytes_done = td->io_bytes[DDIR_READ] + td->io_bytes[DDIR_WRITE]; |
| 1578 | perc = (double) bytes_done / (double) bytes_total; |
| 1579 | if (perc > 1.0) |
| 1580 | perc = 1.0; |
| 1581 | |
| 1582 | eta_sec = (elapsed * (1.0 / perc)) - elapsed; |
| 1583 | |
Jens Axboe | 8b611c3 | 2006-05-25 01:46:59 +0200 | [diff] [blame] | 1584 | if (td->timeout && eta_sec > (td->timeout - elapsed)) |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1585 | eta_sec = td->timeout - elapsed; |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1586 | } else if (td->runstate == TD_NOT_CREATED || td->runstate == TD_CREATED |
| 1587 | || td->runstate == TD_INITIALIZED) { |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1588 | int t_eta = 0, r_eta = 0; |
| 1589 | |
| 1590 | /* |
| 1591 | * We can only guess - assume it'll run the full timeout |
| 1592 | * if given, otherwise assume it'll run at the specified rate. |
| 1593 | */ |
| 1594 | if (td->timeout) |
| 1595 | t_eta = td->timeout + td->start_delay - elapsed; |
| 1596 | if (td->rate) { |
| 1597 | r_eta = (bytes_total / 1024) / td->rate; |
| 1598 | r_eta += td->start_delay - elapsed; |
| 1599 | } |
| 1600 | |
| 1601 | if (r_eta && t_eta) |
| 1602 | eta_sec = min(r_eta, t_eta); |
| 1603 | else if (r_eta) |
| 1604 | eta_sec = r_eta; |
| 1605 | else if (t_eta) |
| 1606 | eta_sec = t_eta; |
| 1607 | else |
Jens Axboe | 972cfd2 | 2006-06-09 11:08:56 +0200 | [diff] [blame] | 1608 | eta_sec = 0; |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1609 | } else { |
| 1610 | /* |
Jens Axboe | 5853e5a | 2006-06-08 14:41:05 +0200 | [diff] [blame] | 1611 | * thread is already done or waiting for fsync |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1612 | */ |
| 1613 | eta_sec = 0; |
| 1614 | } |
| 1615 | |
| 1616 | return eta_sec; |
| 1617 | } |
| 1618 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 1619 | /* |
| 1620 | * Print status of the jobs we know about. This includes rate estimates, |
| 1621 | * ETA, thread state, etc. |
| 1622 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1623 | static void print_thread_status(void) |
| 1624 | { |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1625 | unsigned long elapsed = time_since_now(&genesis); |
Jens Axboe | 71a751c | 2006-06-08 14:48:47 +0200 | [diff] [blame] | 1626 | int i, nr_running, nr_pending, t_rate, m_rate, *eta_secs, eta_sec; |
Jens Axboe | 5289b84 | 2005-12-08 20:47:28 +0100 | [diff] [blame] | 1627 | char eta_str[32]; |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1628 | double perc = 0.0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1629 | |
Jens Axboe | c6ae0a5 | 2006-06-12 11:04:44 +0200 | [diff] [blame] | 1630 | if (temp_stall_ts || terse_output) |
Jens Axboe | 88c6ed8 | 2006-06-09 11:28:10 +0200 | [diff] [blame] | 1631 | return; |
| 1632 | |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1633 | eta_secs = malloc(thread_number * sizeof(int)); |
| 1634 | memset(eta_secs, 0, thread_number * sizeof(int)); |
| 1635 | |
Jens Axboe | 71a751c | 2006-06-08 14:48:47 +0200 | [diff] [blame] | 1636 | nr_pending = nr_running = t_rate = m_rate = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1637 | for (i = 0; i < thread_number; i++) { |
| 1638 | struct thread_data *td = &threads[i]; |
| 1639 | |
Jens Axboe | 5853e5a | 2006-06-08 14:41:05 +0200 | [diff] [blame] | 1640 | if (td->runstate == TD_RUNNING || td->runstate == TD_VERIFYING|| |
| 1641 | td->runstate == TD_FSYNCING) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1642 | nr_running++; |
| 1643 | t_rate += td->rate; |
| 1644 | m_rate += td->ratemin; |
Jens Axboe | 71a751c | 2006-06-08 14:48:47 +0200 | [diff] [blame] | 1645 | } else if (td->runstate < TD_RUNNING) |
| 1646 | nr_pending++; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1647 | |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1648 | if (elapsed >= 3) |
| 1649 | eta_secs[i] = thread_eta(td, elapsed); |
Jens Axboe | 8b611c3 | 2006-05-25 01:46:59 +0200 | [diff] [blame] | 1650 | else |
| 1651 | eta_secs[i] = INT_MAX; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1652 | |
| 1653 | check_str_update(td); |
| 1654 | } |
| 1655 | |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1656 | if (exitall_on_terminate) |
| 1657 | eta_sec = INT_MAX; |
| 1658 | else |
| 1659 | eta_sec = 0; |
Jens Axboe | 5289b84 | 2005-12-08 20:47:28 +0100 | [diff] [blame] | 1660 | |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1661 | for (i = 0; i < thread_number; i++) { |
| 1662 | if (exitall_on_terminate) { |
| 1663 | if (eta_secs[i] < eta_sec) |
| 1664 | eta_sec = eta_secs[i]; |
| 1665 | } else { |
| 1666 | if (eta_secs[i] > eta_sec) |
| 1667 | eta_sec = eta_secs[i]; |
Jens Axboe | 5289b84 | 2005-12-08 20:47:28 +0100 | [diff] [blame] | 1668 | } |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1669 | } |
Jens Axboe | 5289b84 | 2005-12-08 20:47:28 +0100 | [diff] [blame] | 1670 | |
Jens Axboe | 8b611c3 | 2006-05-25 01:46:59 +0200 | [diff] [blame] | 1671 | if (eta_sec != INT_MAX && elapsed) { |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1672 | perc = (double) elapsed / (double) (elapsed + eta_sec); |
| 1673 | eta_to_str(eta_str, eta_sec); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1674 | } |
| 1675 | |
Jens Axboe | 71a751c | 2006-06-08 14:48:47 +0200 | [diff] [blame] | 1676 | if (!nr_running && !nr_pending) |
Jens Axboe | f44c1d4 | 2006-06-08 14:46:24 +0200 | [diff] [blame] | 1677 | return; |
| 1678 | |
Jens Axboe | eb8bbf4 | 2006-06-08 21:40:11 +0200 | [diff] [blame] | 1679 | printf("Threads running: %d", nr_running); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1680 | if (m_rate || t_rate) |
| 1681 | printf(", commitrate %d/%dKiB/sec", t_rate, m_rate); |
Jens Axboe | 8b611c3 | 2006-05-25 01:46:59 +0200 | [diff] [blame] | 1682 | if (eta_sec != INT_MAX) { |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1683 | perc *= 100.0; |
| 1684 | printf(": [%s] [%3.2f%% done] [eta %s]", run_str, perc,eta_str); |
| 1685 | } |
Jens Axboe | 5289b84 | 2005-12-08 20:47:28 +0100 | [diff] [blame] | 1686 | printf("\r"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1687 | fflush(stdout); |
Jens Axboe | 6a0106a | 2006-05-05 10:34:43 +0200 | [diff] [blame] | 1688 | free(eta_secs); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1689 | } |
| 1690 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 1691 | /* |
| 1692 | * Run over the job map and reap the threads that have exited, if any. |
| 1693 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1694 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
| 1695 | { |
| 1696 | int i; |
| 1697 | |
| 1698 | /* |
| 1699 | * reap exited threads (TD_EXITED -> TD_REAPED) |
| 1700 | */ |
| 1701 | for (i = 0; i < thread_number; i++) { |
| 1702 | struct thread_data *td = &threads[i]; |
| 1703 | |
| 1704 | if (td->runstate != TD_EXITED) |
| 1705 | continue; |
| 1706 | |
| 1707 | td_set_runstate(td, TD_REAPED); |
| 1708 | |
| 1709 | if (td->use_thread) { |
| 1710 | long ret; |
| 1711 | |
| 1712 | if (pthread_join(td->thread, (void *) &ret)) |
| 1713 | perror("thread_join"); |
| 1714 | } else |
| 1715 | waitpid(td->pid, NULL, 0); |
| 1716 | |
| 1717 | (*nr_running)--; |
| 1718 | (*m_rate) -= td->ratemin; |
| 1719 | (*t_rate) -= td->rate; |
| 1720 | } |
| 1721 | } |
| 1722 | |
Jens Axboe | fcb6ade | 2006-05-31 12:14:35 +0200 | [diff] [blame] | 1723 | static void fio_unpin_memory(void *pinned) |
| 1724 | { |
| 1725 | if (pinned) { |
| 1726 | if (munlock(pinned, mlock_size) < 0) |
| 1727 | perror("munlock"); |
| 1728 | munmap(pinned, mlock_size); |
| 1729 | } |
| 1730 | } |
| 1731 | |
| 1732 | static void *fio_pin_memory(void) |
| 1733 | { |
Jens Axboe | 32cd46a | 2006-06-07 13:40:40 +0200 | [diff] [blame] | 1734 | unsigned long long phys_mem; |
Jens Axboe | fcb6ade | 2006-05-31 12:14:35 +0200 | [diff] [blame] | 1735 | void *ptr; |
| 1736 | |
| 1737 | if (!mlock_size) |
| 1738 | return NULL; |
| 1739 | |
| 1740 | /* |
| 1741 | * Don't allow mlock of more than real_mem-128MB |
| 1742 | */ |
Jens Axboe | 32cd46a | 2006-06-07 13:40:40 +0200 | [diff] [blame] | 1743 | phys_mem = os_phys_mem(); |
| 1744 | if (phys_mem) { |
| 1745 | if ((mlock_size + 128 * 1024 * 1024) > phys_mem) { |
| 1746 | mlock_size = phys_mem - 128 * 1024 * 1024; |
Jens Axboe | eb8bbf4 | 2006-06-08 21:40:11 +0200 | [diff] [blame] | 1747 | fprintf(f_out, "fio: limiting mlocked memory to %lluMiB\n", mlock_size >> 20); |
Jens Axboe | fcb6ade | 2006-05-31 12:14:35 +0200 | [diff] [blame] | 1748 | } |
| 1749 | } |
| 1750 | |
| 1751 | ptr = mmap(NULL, mlock_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | OS_MAP_ANON, 0, 0); |
| 1752 | if (!ptr) { |
| 1753 | perror("malloc locked mem"); |
| 1754 | return NULL; |
| 1755 | } |
| 1756 | if (mlock(ptr, mlock_size) < 0) { |
| 1757 | munmap(ptr, mlock_size); |
| 1758 | perror("mlock"); |
| 1759 | return NULL; |
| 1760 | } |
| 1761 | |
| 1762 | return ptr; |
| 1763 | } |
| 1764 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 1765 | /* |
| 1766 | * Main function for kicking off and reaping jobs, as needed. |
| 1767 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1768 | static void run_threads(void) |
| 1769 | { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1770 | struct thread_data *td; |
| 1771 | unsigned long spent; |
| 1772 | int i, todo, nr_running, m_rate, t_rate, nr_started; |
Jens Axboe | fcb6ade | 2006-05-31 12:14:35 +0200 | [diff] [blame] | 1773 | void *mlocked_mem; |
| 1774 | |
| 1775 | mlocked_mem = fio_pin_memory(); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1776 | |
Jens Axboe | c6ae0a5 | 2006-06-12 11:04:44 +0200 | [diff] [blame] | 1777 | if (!terse_output) { |
| 1778 | printf("Starting %d thread%s\n", thread_number, thread_number > 1 ? "s" : ""); |
| 1779 | fflush(stdout); |
| 1780 | } |
Jens Axboe | c04f7ec | 2006-05-31 10:13:16 +0200 | [diff] [blame] | 1781 | |
Jens Axboe | 4efa970 | 2006-05-31 11:56:49 +0200 | [diff] [blame] | 1782 | signal(SIGINT, sig_handler); |
| 1783 | signal(SIGALRM, sig_handler); |
| 1784 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1785 | todo = thread_number; |
| 1786 | nr_running = 0; |
| 1787 | nr_started = 0; |
| 1788 | m_rate = t_rate = 0; |
| 1789 | |
| 1790 | for (i = 0; i < thread_number; i++) { |
| 1791 | td = &threads[i]; |
| 1792 | |
| 1793 | run_str[td->thread_number - 1] = 'P'; |
| 1794 | |
| 1795 | init_disk_util(td); |
| 1796 | |
| 1797 | if (!td->create_serialize) |
| 1798 | continue; |
| 1799 | |
| 1800 | /* |
| 1801 | * do file setup here so it happens sequentially, |
| 1802 | * we don't want X number of threads getting their |
| 1803 | * client data interspersed on disk |
| 1804 | */ |
| 1805 | if (setup_file(td)) { |
| 1806 | td_set_runstate(td, TD_REAPED); |
| 1807 | todo--; |
| 1808 | } |
| 1809 | } |
| 1810 | |
| 1811 | gettimeofday(&genesis, NULL); |
| 1812 | |
| 1813 | while (todo) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1814 | struct thread_data *map[MAX_JOBS]; |
| 1815 | struct timeval this_start; |
| 1816 | int this_jobs = 0, left; |
| 1817 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1818 | /* |
| 1819 | * create threads (TD_NOT_CREATED -> TD_CREATED) |
| 1820 | */ |
| 1821 | for (i = 0; i < thread_number; i++) { |
| 1822 | td = &threads[i]; |
| 1823 | |
| 1824 | if (td->runstate != TD_NOT_CREATED) |
| 1825 | continue; |
| 1826 | |
| 1827 | /* |
| 1828 | * never got a chance to start, killed by other |
| 1829 | * thread for some reason |
| 1830 | */ |
| 1831 | if (td->terminate) { |
| 1832 | todo--; |
| 1833 | continue; |
| 1834 | } |
| 1835 | |
| 1836 | if (td->start_delay) { |
| 1837 | spent = mtime_since_now(&genesis); |
| 1838 | |
| 1839 | if (td->start_delay * 1000 > spent) |
| 1840 | continue; |
| 1841 | } |
| 1842 | |
| 1843 | if (td->stonewall && (nr_started || nr_running)) |
| 1844 | break; |
| 1845 | |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1846 | /* |
| 1847 | * Set state to created. Thread will transition |
| 1848 | * to TD_INITIALIZED when it's done setting up. |
| 1849 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1850 | td_set_runstate(td, TD_CREATED); |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1851 | map[this_jobs++] = td; |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 1852 | fio_sem_init(&startup_sem, 1); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1853 | nr_started++; |
| 1854 | |
| 1855 | if (td->use_thread) { |
| 1856 | if (pthread_create(&td->thread, NULL, thread_main, td)) { |
| 1857 | perror("thread_create"); |
| 1858 | nr_started--; |
| 1859 | } |
| 1860 | } else { |
| 1861 | if (fork()) |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 1862 | fio_sem_down(&startup_sem); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1863 | else { |
| 1864 | fork_main(shm_id, i); |
| 1865 | exit(0); |
| 1866 | } |
| 1867 | } |
| 1868 | } |
| 1869 | |
| 1870 | /* |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1871 | * Wait for the started threads to transition to |
| 1872 | * TD_INITIALIZED. |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1873 | */ |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1874 | gettimeofday(&this_start, NULL); |
| 1875 | left = this_jobs; |
| 1876 | while (left) { |
| 1877 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
| 1878 | break; |
| 1879 | |
| 1880 | usleep(100000); |
| 1881 | |
| 1882 | for (i = 0; i < this_jobs; i++) { |
| 1883 | td = map[i]; |
| 1884 | if (!td) |
| 1885 | continue; |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 1886 | if (td->runstate == TD_INITIALIZED) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1887 | map[i] = NULL; |
| 1888 | left--; |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 1889 | } else if (td->runstate >= TD_EXITED) { |
| 1890 | map[i] = NULL; |
| 1891 | left--; |
| 1892 | todo--; |
| 1893 | nr_running++; /* work-around... */ |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1894 | } |
| 1895 | } |
| 1896 | } |
| 1897 | |
| 1898 | if (left) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 1899 | log_err("fio: %d jobs failed to start\n", left); |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1900 | for (i = 0; i < this_jobs; i++) { |
| 1901 | td = map[i]; |
| 1902 | if (!td) |
| 1903 | continue; |
| 1904 | kill(td->pid, SIGTERM); |
| 1905 | } |
| 1906 | break; |
| 1907 | } |
| 1908 | |
| 1909 | /* |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 1910 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1911 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1912 | for (i = 0; i < thread_number; i++) { |
| 1913 | td = &threads[i]; |
| 1914 | |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1915 | if (td->runstate != TD_INITIALIZED) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1916 | continue; |
| 1917 | |
| 1918 | td_set_runstate(td, TD_RUNNING); |
| 1919 | nr_running++; |
| 1920 | nr_started--; |
| 1921 | m_rate += td->ratemin; |
| 1922 | t_rate += td->rate; |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1923 | todo--; |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 1924 | fio_sem_up(&td->mutex); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1925 | } |
| 1926 | |
| 1927 | reap_threads(&nr_running, &t_rate, &m_rate); |
| 1928 | |
| 1929 | if (todo) |
| 1930 | usleep(100000); |
| 1931 | } |
| 1932 | |
| 1933 | while (nr_running) { |
| 1934 | reap_threads(&nr_running, &t_rate, &m_rate); |
| 1935 | usleep(10000); |
| 1936 | } |
| 1937 | |
| 1938 | update_io_ticks(); |
Jens Axboe | fcb6ade | 2006-05-31 12:14:35 +0200 | [diff] [blame] | 1939 | fio_unpin_memory(mlocked_mem); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1940 | } |
| 1941 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1942 | int main(int argc, char *argv[]) |
| 1943 | { |
| 1944 | if (parse_options(argc, argv)) |
| 1945 | return 1; |
| 1946 | |
| 1947 | if (!thread_number) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 1948 | log_err("Nothing to do\n"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1949 | return 1; |
| 1950 | } |
| 1951 | |
| 1952 | disk_util_timer_arm(); |
| 1953 | |
| 1954 | run_threads(); |
| 1955 | show_run_stats(); |
| 1956 | |
| 1957 | return 0; |
| 1958 | } |