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> |
Jens Axboe | aae22ca | 2006-09-05 10:46:22 +0200 | [diff] [blame] | 5 | * Copyright (C) 2006 Jens Axboe <axboe@kernel.dk> |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 6 | * |
Jens Axboe | 8e9fe63 | 2006-10-24 15:11:09 +0200 | [diff] [blame] | 7 | * The license below covers all files distributed with fio unless otherwise |
| 8 | * noted in the file itself. |
| 9 | * |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 10 | * This program is free software; you can redistribute it and/or modify |
Jens Axboe | 8e9fe63 | 2006-10-24 15:11:09 +0200 | [diff] [blame] | 11 | * it under the terms of the GNU General Public License version 2 as |
| 12 | * published by the Free Software Foundation. |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 22 | * |
| 23 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 24 | #include <unistd.h> |
| 25 | #include <fcntl.h> |
| 26 | #include <string.h> |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 27 | #include <signal.h> |
| 28 | #include <time.h> |
Jens Axboe | dbe1125 | 2007-02-11 00:19:51 +0100 | [diff] [blame] | 29 | #include <locale.h> |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 30 | #include <assert.h> |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 31 | #include <sys/stat.h> |
| 32 | #include <sys/wait.h> |
| 33 | #include <sys/ipc.h> |
| 34 | #include <sys/shm.h> |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 35 | #include <sys/mman.h> |
| 36 | |
| 37 | #include "fio.h" |
| 38 | #include "os.h" |
| 39 | |
Jens Axboe | 29d610e | 2007-02-06 13:25:33 +0100 | [diff] [blame] | 40 | static unsigned long page_mask; |
| 41 | #define ALIGN(buf) \ |
| 42 | (char *) (((unsigned long) (buf) + page_mask) & ~page_mask) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 43 | |
| 44 | int groupid = 0; |
| 45 | int thread_number = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 46 | int shm_id = 0; |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 47 | int temp_stall_ts; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 48 | |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 49 | static volatile int startup_sem; |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 50 | static volatile int fio_abort; |
Jens Axboe | 437c9b7 | 2007-02-13 18:20:37 +0100 | [diff] [blame] | 51 | static int exit_value; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 52 | |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 53 | struct io_log *agg_io_log[2]; |
| 54 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 55 | #define TERMINATE_ALL (-1) |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 56 | #define JOB_START_TIMEOUT (5 * 1000) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 57 | |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 58 | static inline void td_set_runstate(struct thread_data *td, int runstate) |
| 59 | { |
| 60 | td->runstate = runstate; |
| 61 | } |
| 62 | |
| 63 | static void terminate_threads(int group_id, int forced_kill) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 64 | { |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 65 | struct thread_data *td; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 66 | int i; |
| 67 | |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 68 | for_each_td(td, i) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 69 | if (group_id == TERMINATE_ALL || groupid == td->groupid) { |
| 70 | td->terminate = 1; |
| 71 | td->start_delay = 0; |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 72 | if (forced_kill) |
| 73 | td_set_runstate(td, TD_EXITED); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 74 | } |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | static void sig_handler(int sig) |
| 79 | { |
| 80 | switch (sig) { |
| 81 | case SIGALRM: |
| 82 | update_io_ticks(); |
| 83 | disk_util_timer_arm(); |
| 84 | print_thread_status(); |
| 85 | break; |
| 86 | default: |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 87 | printf("\nfio: terminating on signal %d\n", sig); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 88 | fflush(stdout); |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 89 | terminate_threads(TERMINATE_ALL, 0); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 90 | break; |
| 91 | } |
| 92 | } |
| 93 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 94 | /* |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 95 | * Check if we are above the minimum rate given. |
| 96 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 97 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
| 98 | { |
| 99 | unsigned long spent; |
| 100 | unsigned long rate; |
| 101 | int ddir = td->ddir; |
| 102 | |
| 103 | /* |
| 104 | * allow a 2 second settle period in the beginning |
| 105 | */ |
| 106 | if (mtime_since(&td->start, now) < 2000) |
| 107 | return 0; |
| 108 | |
| 109 | /* |
| 110 | * if rate blocks is set, sample is running |
| 111 | */ |
| 112 | if (td->rate_bytes) { |
| 113 | spent = mtime_since(&td->lastrate, now); |
| 114 | if (spent < td->ratecycle) |
| 115 | return 0; |
| 116 | |
| 117 | rate = (td->this_io_bytes[ddir] - td->rate_bytes) / spent; |
| 118 | if (rate < td->ratemin) { |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 119 | fprintf(f_out, "%s: min rate %u not met, got %luKiB/sec\n", td->name, td->ratemin, rate); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 120 | return 1; |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | td->rate_bytes = td->this_io_bytes[ddir]; |
| 125 | memcpy(&td->lastrate, now, sizeof(*now)); |
| 126 | return 0; |
| 127 | } |
| 128 | |
| 129 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
| 130 | { |
| 131 | if (!td->timeout) |
| 132 | return 0; |
| 133 | if (mtime_since(&td->epoch, t) >= td->timeout * 1000) |
| 134 | return 1; |
| 135 | |
| 136 | return 0; |
| 137 | } |
| 138 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 139 | /* |
| 140 | * When job exits, we can cancel the in-flight IO if we are using async |
| 141 | * io. Attempt to do so. |
| 142 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 143 | static void cleanup_pending_aio(struct thread_data *td) |
| 144 | { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 145 | struct list_head *entry, *n; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 146 | struct io_u *io_u; |
| 147 | int r; |
| 148 | |
| 149 | /* |
| 150 | * get immediately available events, if any |
| 151 | */ |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 152 | r = io_u_queued_complete(td, 0, NULL); |
| 153 | if (r < 0) |
| 154 | return; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 155 | |
| 156 | /* |
| 157 | * now cancel remaining active events |
| 158 | */ |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 159 | if (td->io_ops->cancel) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 160 | list_for_each_safe(entry, n, &td->io_u_busylist) { |
| 161 | io_u = list_entry(entry, struct io_u, list); |
| 162 | |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 163 | r = td->io_ops->cancel(td, io_u); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 164 | if (!r) |
| 165 | put_io_u(td, io_u); |
| 166 | } |
| 167 | } |
| 168 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 169 | if (td->cur_depth) |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 170 | r = io_u_queued_complete(td, td->cur_depth, NULL); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 171 | } |
| 172 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 173 | /* |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 174 | * Helper to handle the final sync of a file. Works just like the normal |
| 175 | * io path, just does everything sync. |
| 176 | */ |
| 177 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) |
| 178 | { |
| 179 | struct io_u *io_u = __get_io_u(td); |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 180 | int ret; |
| 181 | |
| 182 | if (!io_u) |
| 183 | return 1; |
| 184 | |
| 185 | io_u->ddir = DDIR_SYNC; |
| 186 | io_u->file = f; |
| 187 | |
| 188 | if (td_io_prep(td, io_u)) { |
| 189 | put_io_u(td, io_u); |
| 190 | return 1; |
| 191 | } |
| 192 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 193 | requeue: |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 194 | ret = td_io_queue(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 195 | if (ret < 0) { |
Jens Axboe | 353a7e0 | 2006-10-25 09:16:07 +0200 | [diff] [blame] | 196 | td_verror(td, io_u->error); |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 197 | put_io_u(td, io_u); |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 198 | return 1; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 199 | } else if (ret == FIO_Q_QUEUED) { |
Jens Axboe | 49db69a | 2007-02-21 20:28:14 +0100 | [diff] [blame] | 200 | if (io_u_queued_complete(td, 1, NULL) < 0) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 201 | return 1; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 202 | } else if (ret == FIO_Q_COMPLETED) { |
| 203 | if (io_u->error) { |
| 204 | td_verror(td, io_u->error); |
| 205 | return 1; |
| 206 | } |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 207 | |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 208 | if (io_u_sync_complete(td, io_u, NULL) < 0) |
| 209 | return 1; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 210 | } else if (ret == FIO_Q_BUSY) { |
| 211 | if (td_io_commit(td)) |
| 212 | return 1; |
| 213 | goto requeue; |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 214 | } |
| 215 | |
| 216 | return 0; |
| 217 | } |
| 218 | |
| 219 | /* |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 220 | * The main verify engine. Runs over the writes we previusly submitted, |
| 221 | * reads the blocks back in, and checks the crc/md5 of the data. |
| 222 | */ |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 223 | static void do_verify(struct thread_data *td) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 224 | { |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 225 | struct fio_file *f; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 226 | struct io_u *io_u; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 227 | int ret, i, min_events; |
Jens Axboe | e5b401d | 2006-10-18 16:03:40 +0200 | [diff] [blame] | 228 | |
| 229 | /* |
| 230 | * sync io first and invalidate cache, to make sure we really |
| 231 | * read from disk. |
| 232 | */ |
| 233 | for_each_file(td, f, i) { |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 234 | if (fio_io_sync(td, f)) |
| 235 | break; |
| 236 | if (file_invalidate_cache(td, f)) |
| 237 | break; |
Jens Axboe | e5b401d | 2006-10-18 16:03:40 +0200 | [diff] [blame] | 238 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 239 | |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 240 | if (td->error) |
| 241 | return; |
| 242 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 243 | td_set_runstate(td, TD_VERIFYING); |
| 244 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 245 | io_u = NULL; |
| 246 | while (!td->terminate) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 247 | io_u = __get_io_u(td); |
| 248 | if (!io_u) |
| 249 | break; |
| 250 | |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame^] | 251 | if (runtime_exceeded(td, &io_u->start_time)) { |
| 252 | put_io_u(td, io_u); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 253 | break; |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame^] | 254 | } |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 255 | |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame^] | 256 | if (get_next_verify(td, io_u)) { |
| 257 | put_io_u(td, io_u); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 258 | break; |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame^] | 259 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 260 | |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame^] | 261 | if (td_io_prep(td, io_u)) { |
| 262 | put_io_u(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 263 | break; |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame^] | 264 | } |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 265 | requeue: |
Jens Axboe | 45bee28 | 2006-10-18 15:26:44 +0200 | [diff] [blame] | 266 | ret = td_io_queue(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 267 | |
| 268 | switch (ret) { |
| 269 | case FIO_Q_COMPLETED: |
| 270 | if (io_u->error) |
Jens Axboe | 22819ec | 2007-02-18 07:47:14 +0100 | [diff] [blame] | 271 | ret = -io_u->error; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 272 | if (io_u->xfer_buflen != io_u->resid && io_u->resid) { |
| 273 | int bytes = io_u->xfer_buflen - io_u->resid; |
| 274 | |
| 275 | io_u->xfer_buflen = io_u->resid; |
| 276 | io_u->xfer_buf += bytes; |
| 277 | goto requeue; |
| 278 | } |
Jens Axboe | 9978463 | 2007-02-19 10:06:17 +0100 | [diff] [blame] | 279 | ret = io_u_sync_complete(td, io_u, verify_io_u); |
Jens Axboe | 49db69a | 2007-02-21 20:28:14 +0100 | [diff] [blame] | 280 | if (ret < 0) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 281 | break; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 282 | continue; |
| 283 | case FIO_Q_QUEUED: |
| 284 | break; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 285 | case FIO_Q_BUSY: |
| 286 | requeue_io_u(td, &io_u); |
| 287 | ret = td_io_commit(td); |
| 288 | break; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 289 | default: |
| 290 | assert(ret < 0); |
Jens Axboe | 22819ec | 2007-02-18 07:47:14 +0100 | [diff] [blame] | 291 | td_verror(td, -ret); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 292 | break; |
| 293 | } |
| 294 | |
Jens Axboe | 9978463 | 2007-02-19 10:06:17 +0100 | [diff] [blame] | 295 | if (ret < 0 || td->error) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 296 | break; |
| 297 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 298 | /* |
| 299 | * if we can queue more, do so. but check if there are |
| 300 | * completed io_u's first. |
| 301 | */ |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 302 | min_events = 0; |
Jens Axboe | e916b39 | 2007-02-20 14:37:26 +0100 | [diff] [blame] | 303 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 304 | min_events = 1; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 305 | |
Jens Axboe | e916b39 | 2007-02-20 14:37:26 +0100 | [diff] [blame] | 306 | if (td->cur_depth > td->iodepth_low) |
| 307 | min_events = td->cur_depth - td->iodepth_low; |
| 308 | } |
| 309 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 310 | /* |
| 311 | * Reap required number of io units, if any, and do the |
| 312 | * verification on them through the callback handler |
| 313 | */ |
Jens Axboe | 49db69a | 2007-02-21 20:28:14 +0100 | [diff] [blame] | 314 | if (io_u_queued_complete(td, min_events, verify_io_u) < 0) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 315 | break; |
| 316 | } |
| 317 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 318 | if (td->cur_depth) |
| 319 | cleanup_pending_aio(td); |
| 320 | |
| 321 | td_set_runstate(td, TD_RUNNING); |
| 322 | } |
| 323 | |
Jens Axboe | 32cd46a | 2006-06-07 13:40:40 +0200 | [diff] [blame] | 324 | /* |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 325 | * Not really an io thread, all it does is burn CPU cycles in the specified |
| 326 | * manner. |
| 327 | */ |
| 328 | static void do_cpuio(struct thread_data *td) |
| 329 | { |
| 330 | struct timeval e; |
| 331 | int split = 100 / td->cpuload; |
| 332 | int i = 0; |
| 333 | |
| 334 | while (!td->terminate) { |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 335 | fio_gettime(&e, NULL); |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 336 | |
| 337 | if (runtime_exceeded(td, &e)) |
| 338 | break; |
| 339 | |
| 340 | if (!(i % split)) |
| 341 | __usec_sleep(10000); |
| 342 | else |
| 343 | usec_sleep(td, 10000); |
| 344 | |
| 345 | i++; |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | /* |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 350 | * 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] | 351 | * and reaps them, checking for rate and errors along the way. |
| 352 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 353 | static void do_io(struct thread_data *td) |
| 354 | { |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 355 | struct timeval s; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 356 | unsigned long usec; |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 357 | int i, ret = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 358 | |
Jens Axboe | 5853e5a | 2006-06-08 14:41:05 +0200 | [diff] [blame] | 359 | td_set_runstate(td, TD_RUNNING); |
| 360 | |
Jens Axboe | 3951414 | 2007-02-12 18:49:58 +0100 | [diff] [blame] | 361 | while ((td->this_io_bytes[0] + td->this_io_bytes[1]) < td->io_size) { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 362 | struct timeval comp_time; |
| 363 | long bytes_done = 0; |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 364 | int min_evts = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 365 | struct io_u *io_u; |
| 366 | |
| 367 | if (td->terminate) |
| 368 | break; |
| 369 | |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 370 | io_u = get_io_u(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 371 | if (!io_u) |
| 372 | break; |
| 373 | |
| 374 | memcpy(&s, &io_u->start_time, sizeof(s)); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 375 | |
| 376 | if (runtime_exceeded(td, &s)) { |
| 377 | put_io_u(td, io_u); |
| 378 | break; |
| 379 | } |
Jens Axboe | cec6b55 | 2007-02-06 20:15:38 +0100 | [diff] [blame] | 380 | requeue: |
Jens Axboe | 45bee28 | 2006-10-18 15:26:44 +0200 | [diff] [blame] | 381 | ret = td_io_queue(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 382 | |
| 383 | switch (ret) { |
| 384 | case FIO_Q_COMPLETED: |
| 385 | if (io_u->error) { |
| 386 | ret = io_u->error; |
Jens Axboe | cec6b55 | 2007-02-06 20:15:38 +0100 | [diff] [blame] | 387 | break; |
| 388 | } |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 389 | if (io_u->xfer_buflen != io_u->resid && io_u->resid) { |
| 390 | int bytes = io_u->xfer_buflen - io_u->resid; |
| 391 | |
| 392 | io_u->xfer_buflen = io_u->resid; |
| 393 | io_u->xfer_buf += bytes; |
| 394 | goto requeue; |
| 395 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 396 | fio_gettime(&comp_time, NULL); |
| 397 | bytes_done = io_u_sync_complete(td, io_u, NULL); |
Jens Axboe | 9978463 | 2007-02-19 10:06:17 +0100 | [diff] [blame] | 398 | if (bytes_done < 0) |
| 399 | ret = bytes_done; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 400 | break; |
| 401 | case FIO_Q_QUEUED: |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 402 | /* |
| 403 | * if the engine doesn't have a commit hook, |
| 404 | * the io_u is really queued. if it does have such |
| 405 | * a hook, it has to call io_u_queued() itself. |
| 406 | */ |
| 407 | if (td->io_ops->commit == NULL) |
| 408 | io_u_queued(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 409 | break; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 410 | case FIO_Q_BUSY: |
| 411 | requeue_io_u(td, &io_u); |
| 412 | ret = td_io_commit(td); |
| 413 | break; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 414 | default: |
| 415 | assert(ret < 0); |
| 416 | put_io_u(td, io_u); |
| 417 | break; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 418 | } |
| 419 | |
Jens Axboe | 9978463 | 2007-02-19 10:06:17 +0100 | [diff] [blame] | 420 | if (ret < 0 || td->error) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 421 | break; |
| 422 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 423 | /* |
| 424 | * See if we need to complete some commands |
| 425 | */ |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 426 | if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 427 | min_evts = 0; |
Jens Axboe | e916b39 | 2007-02-20 14:37:26 +0100 | [diff] [blame] | 428 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 429 | min_evts = 1; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 430 | |
Jens Axboe | e916b39 | 2007-02-20 14:37:26 +0100 | [diff] [blame] | 431 | if (td->cur_depth > td->iodepth_low) |
| 432 | min_evts = td->cur_depth - td->iodepth_low; |
| 433 | } |
| 434 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 435 | fio_gettime(&comp_time, NULL); |
| 436 | bytes_done = io_u_queued_complete(td, min_evts, NULL); |
| 437 | if (bytes_done < 0) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 438 | break; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 439 | } |
| 440 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 441 | if (!bytes_done) |
| 442 | continue; |
| 443 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 444 | /* |
| 445 | * the rate is batched for now, it should work for batches |
| 446 | * of completions except the very first one which may look |
| 447 | * a little bursty |
| 448 | */ |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 449 | usec = utime_since(&s, &comp_time); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 450 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 451 | rate_throttle(td, usec, bytes_done, td->ddir); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 452 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 453 | if (check_min_rate(td, &comp_time)) { |
Jens Axboe | 98aa62d | 2006-11-07 14:16:19 +0100 | [diff] [blame] | 454 | if (exitall_on_terminate) |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 455 | terminate_threads(td->groupid, 0); |
Jens Axboe | fd84146 | 2007-01-13 12:20:30 +0100 | [diff] [blame] | 456 | td_verror(td, ENODATA); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 457 | break; |
| 458 | } |
| 459 | |
Jens Axboe | 9c1f743 | 2007-01-03 20:43:19 +0100 | [diff] [blame] | 460 | if (td->thinktime) { |
| 461 | unsigned long long b; |
| 462 | |
| 463 | b = td->io_blocks[0] + td->io_blocks[1]; |
Jens Axboe | 48097d5 | 2007-02-17 06:30:44 +0100 | [diff] [blame] | 464 | if (!(b % td->thinktime_blocks)) { |
| 465 | int left; |
| 466 | |
| 467 | if (td->thinktime_spin) |
| 468 | __usec_sleep(td->thinktime_spin); |
| 469 | |
| 470 | left = td->thinktime - td->thinktime_spin; |
| 471 | if (left) |
| 472 | usec_sleep(td, left); |
| 473 | } |
Jens Axboe | 9c1f743 | 2007-01-03 20:43:19 +0100 | [diff] [blame] | 474 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 475 | } |
| 476 | |
Jens Axboe | 4d2413c | 2006-11-23 11:58:59 +0100 | [diff] [blame] | 477 | if (!td->error) { |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 478 | struct fio_file *f; |
| 479 | |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 480 | if (td->cur_depth) |
| 481 | cleanup_pending_aio(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 482 | |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 483 | if (should_fsync(td) && td->end_fsync) { |
| 484 | td_set_runstate(td, TD_FSYNCING); |
| 485 | for_each_file(td, f, i) |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 486 | fio_io_sync(td, f); |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 487 | } |
Jens Axboe | 5853e5a | 2006-06-08 14:41:05 +0200 | [diff] [blame] | 488 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 489 | } |
| 490 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 491 | static void cleanup_io_u(struct thread_data *td) |
| 492 | { |
| 493 | struct list_head *entry, *n; |
| 494 | struct io_u *io_u; |
| 495 | |
| 496 | list_for_each_safe(entry, n, &td->io_u_freelist) { |
| 497 | io_u = list_entry(entry, struct io_u, list); |
| 498 | |
| 499 | list_del(&io_u->list); |
| 500 | free(io_u); |
| 501 | } |
| 502 | |
Jens Axboe | 2f9ade3 | 2006-10-20 11:25:52 +0200 | [diff] [blame] | 503 | free_io_mem(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 504 | } |
| 505 | |
Jens Axboe | 6b9cea2 | 2006-10-30 17:00:24 +0100 | [diff] [blame] | 506 | /* |
| 507 | * "randomly" fill the buffer contents |
| 508 | */ |
Jens Axboe | 66eeb29 | 2006-11-01 08:35:44 +0100 | [diff] [blame] | 509 | static void fill_rand_buf(struct io_u *io_u, int max_bs) |
Jens Axboe | 6b9cea2 | 2006-10-30 17:00:24 +0100 | [diff] [blame] | 510 | { |
Jens Axboe | 66eeb29 | 2006-11-01 08:35:44 +0100 | [diff] [blame] | 511 | int *ptr = io_u->buf; |
Jens Axboe | 6b9cea2 | 2006-10-30 17:00:24 +0100 | [diff] [blame] | 512 | |
| 513 | while ((void *) ptr - io_u->buf < max_bs) { |
| 514 | *ptr = rand() * 0x9e370001; |
| 515 | ptr++; |
| 516 | } |
| 517 | } |
| 518 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 519 | static int init_io_u(struct thread_data *td) |
| 520 | { |
| 521 | struct io_u *io_u; |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 522 | unsigned int max_bs; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 523 | int i, max_units; |
| 524 | char *p; |
| 525 | |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 526 | if (td->io_ops->flags & FIO_CPUIO) |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 527 | return 0; |
| 528 | |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 529 | if (td->io_ops->flags & FIO_SYNCIO) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 530 | max_units = 1; |
| 531 | else |
| 532 | max_units = td->iodepth; |
| 533 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 534 | max_bs = max(td->max_bs[DDIR_READ], td->max_bs[DDIR_WRITE]); |
Jens Axboe | 74b025b | 2006-12-19 15:18:14 +0100 | [diff] [blame] | 535 | td->orig_buffer_size = max_bs * max_units; |
| 536 | |
Jens Axboe | d0bdaf4 | 2006-12-20 14:40:44 +0100 | [diff] [blame] | 537 | if (td->mem_type == MEM_SHMHUGE || td->mem_type == MEM_MMAPHUGE) |
Jens Axboe | 56bb17f | 2006-12-20 20:27:36 +0100 | [diff] [blame] | 538 | td->orig_buffer_size = (td->orig_buffer_size + td->hugepage_size - 1) & ~(td->hugepage_size - 1); |
Jens Axboe | 74b025b | 2006-12-19 15:18:14 +0100 | [diff] [blame] | 539 | else |
Jens Axboe | 29d610e | 2007-02-06 13:25:33 +0100 | [diff] [blame] | 540 | td->orig_buffer_size += page_mask; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 541 | |
Jens Axboe | 2f9ade3 | 2006-10-20 11:25:52 +0200 | [diff] [blame] | 542 | if (allocate_io_mem(td)) |
| 543 | return 1; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 544 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 545 | p = ALIGN(td->orig_buffer); |
| 546 | for (i = 0; i < max_units; i++) { |
| 547 | io_u = malloc(sizeof(*io_u)); |
| 548 | memset(io_u, 0, sizeof(*io_u)); |
| 549 | INIT_LIST_HEAD(&io_u->list); |
| 550 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 551 | io_u->buf = p + max_bs * i; |
Jens Axboe | 6b9cea2 | 2006-10-30 17:00:24 +0100 | [diff] [blame] | 552 | if (td_write(td) || td_rw(td)) |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 553 | fill_rand_buf(io_u, max_bs); |
Jens Axboe | 6b9cea2 | 2006-10-30 17:00:24 +0100 | [diff] [blame] | 554 | |
Jens Axboe | b1ff340 | 2006-02-17 11:35:58 +0100 | [diff] [blame] | 555 | io_u->index = i; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 556 | list_add(&io_u->list, &td->io_u_freelist); |
| 557 | } |
| 558 | |
| 559 | return 0; |
| 560 | } |
| 561 | |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 562 | static int switch_ioscheduler(struct thread_data *td) |
| 563 | { |
| 564 | char tmp[256], tmp2[128]; |
| 565 | FILE *f; |
| 566 | int ret; |
| 567 | |
Jens Axboe | f48b467 | 2006-10-27 11:30:07 +0200 | [diff] [blame] | 568 | if (td->io_ops->flags & FIO_CPUIO) |
| 569 | return 0; |
| 570 | |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 571 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
| 572 | |
| 573 | f = fopen(tmp, "r+"); |
| 574 | if (!f) { |
| 575 | td_verror(td, errno); |
| 576 | return 1; |
| 577 | } |
| 578 | |
| 579 | /* |
| 580 | * Set io scheduler. |
| 581 | */ |
| 582 | ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f); |
| 583 | if (ferror(f) || ret != 1) { |
| 584 | td_verror(td, errno); |
| 585 | fclose(f); |
| 586 | return 1; |
| 587 | } |
| 588 | |
| 589 | rewind(f); |
| 590 | |
| 591 | /* |
| 592 | * Read back and check that the selected scheduler is now the default. |
| 593 | */ |
| 594 | ret = fread(tmp, 1, sizeof(tmp), f); |
| 595 | if (ferror(f) || ret < 0) { |
| 596 | td_verror(td, errno); |
| 597 | fclose(f); |
| 598 | return 1; |
| 599 | } |
| 600 | |
| 601 | sprintf(tmp2, "[%s]", td->ioscheduler); |
| 602 | if (!strstr(tmp, tmp2)) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 603 | log_err("fio: io scheduler %s not found\n", td->ioscheduler); |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 604 | td_verror(td, EINVAL); |
| 605 | fclose(f); |
| 606 | return 1; |
| 607 | } |
| 608 | |
| 609 | fclose(f); |
| 610 | return 0; |
| 611 | } |
| 612 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 613 | static void clear_io_state(struct thread_data *td) |
| 614 | { |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 615 | struct fio_file *f; |
| 616 | int i; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 617 | |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 618 | td->ts.stat_io_bytes[0] = td->ts.stat_io_bytes[1] = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 619 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 620 | td->zone_bytes = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 621 | |
Jens Axboe | c1324df | 2007-02-19 19:06:41 +0100 | [diff] [blame] | 622 | td->last_was_sync = 0; |
| 623 | |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 624 | for_each_file(td, f, i) { |
Jens Axboe | c1324df | 2007-02-19 19:06:41 +0100 | [diff] [blame] | 625 | f->last_completed_pos = 0; |
| 626 | |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 627 | f->last_pos = 0; |
| 628 | if (td->io_ops->flags & FIO_SYNCIO) |
| 629 | lseek(f->fd, SEEK_SET, 0); |
| 630 | |
| 631 | if (f->file_map) |
| 632 | memset(f->file_map, 0, f->num_maps * sizeof(long)); |
| 633 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 634 | } |
| 635 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 636 | /* |
| 637 | * Entry point for the thread based jobs. The process based jobs end up |
| 638 | * here as well, after a little setup. |
| 639 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 640 | static void *thread_main(void *data) |
| 641 | { |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 642 | unsigned long long runtime[2]; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 643 | struct thread_data *td = data; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 644 | |
| 645 | if (!td->use_thread) |
| 646 | setsid(); |
| 647 | |
| 648 | td->pid = getpid(); |
| 649 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 650 | INIT_LIST_HEAD(&td->io_u_freelist); |
| 651 | INIT_LIST_HEAD(&td->io_u_busylist); |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 652 | INIT_LIST_HEAD(&td->io_u_requeues); |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 653 | INIT_LIST_HEAD(&td->io_hist_list); |
| 654 | INIT_LIST_HEAD(&td->io_log_list); |
| 655 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 656 | if (init_io_u(td)) |
| 657 | goto err; |
| 658 | |
| 659 | if (fio_setaffinity(td) == -1) { |
| 660 | td_verror(td, errno); |
| 661 | goto err; |
| 662 | } |
| 663 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 664 | if (init_iolog(td)) |
| 665 | goto err; |
| 666 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 667 | if (td->ioprio) { |
| 668 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
| 669 | td_verror(td, errno); |
| 670 | goto err; |
| 671 | } |
| 672 | } |
| 673 | |
Jens Axboe | 1056eaa | 2006-07-13 10:33:45 -0700 | [diff] [blame] | 674 | if (nice(td->nice) == -1) { |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 675 | td_verror(td, errno); |
| 676 | goto err; |
| 677 | } |
| 678 | |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 679 | if (init_random_state(td)) |
| 680 | goto err; |
| 681 | |
Jens Axboe | 56f9498 | 2006-10-24 09:33:42 +0200 | [diff] [blame] | 682 | if (td->ioscheduler && switch_ioscheduler(td)) |
| 683 | goto err; |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 684 | |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 685 | td_set_runstate(td, TD_INITIALIZED); |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 686 | fio_sem_up(&startup_sem); |
| 687 | fio_sem_down(&td->mutex); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 688 | |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 689 | if (!td->create_serialize && setup_files(td)) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 690 | goto err; |
Jens Axboe | 21972cd | 2006-11-23 12:39:16 +0100 | [diff] [blame] | 691 | if (open_files(td)) |
| 692 | goto err; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 693 | |
Jens Axboe | 7d6c528 | 2007-02-05 10:52:10 +0100 | [diff] [blame] | 694 | /* |
| 695 | * Do this late, as some IO engines would like to have the |
| 696 | * files setup prior to initializing structures. |
| 697 | */ |
| 698 | if (td_io_init(td)) |
| 699 | goto err; |
| 700 | |
Jens Axboe | 69cfd7e | 2007-02-07 13:58:53 +0100 | [diff] [blame] | 701 | if (td->exec_prerun) { |
| 702 | if (system(td->exec_prerun) < 0) |
| 703 | goto err; |
| 704 | } |
Jens Axboe | 4e0ba8a | 2006-06-06 09:36:28 +0200 | [diff] [blame] | 705 | |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 706 | fio_gettime(&td->epoch, NULL); |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 707 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 708 | |
| 709 | runtime[0] = runtime[1] = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 710 | while (td->loops--) { |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 711 | fio_gettime(&td->start, NULL); |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 712 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 713 | |
| 714 | if (td->ratemin) |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 715 | memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 716 | |
| 717 | clear_io_state(td); |
| 718 | prune_io_piece_log(td); |
| 719 | |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 720 | if (td->io_ops->flags & FIO_CPUIO) |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 721 | do_cpuio(td); |
| 722 | else |
| 723 | do_io(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 724 | |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 725 | runtime[td->ddir] += utime_since_now(&td->start); |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 726 | if (td_rw(td) && td->io_bytes[td->ddir ^ 1]) |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 727 | runtime[td->ddir ^ 1] = runtime[td->ddir]; |
Jens Axboe | 3d60d1e | 2006-05-25 06:31:06 +0200 | [diff] [blame] | 728 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 729 | if (td->error || td->terminate) |
| 730 | break; |
| 731 | |
| 732 | if (td->verify == VERIFY_NONE) |
| 733 | continue; |
| 734 | |
| 735 | clear_io_state(td); |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 736 | fio_gettime(&td->start, NULL); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 737 | |
| 738 | do_verify(td); |
| 739 | |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 740 | runtime[DDIR_READ] += utime_since_now(&td->start); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 741 | |
| 742 | if (td->error || td->terminate) |
| 743 | break; |
| 744 | } |
| 745 | |
Jens Axboe | 36dff96 | 2006-11-24 13:29:20 +0100 | [diff] [blame] | 746 | update_rusage_stat(td); |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 747 | fio_gettime(&td->end_time, NULL); |
| 748 | td->runtime[0] = runtime[0] / 1000; |
| 749 | td->runtime[1] = runtime[1] / 1000; |
| 750 | |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 751 | if (td->ts.bw_log) |
| 752 | finish_log(td, td->ts.bw_log, "bw"); |
| 753 | if (td->ts.slat_log) |
| 754 | finish_log(td, td->ts.slat_log, "slat"); |
| 755 | if (td->ts.clat_log) |
| 756 | finish_log(td, td->ts.clat_log, "clat"); |
Jens Axboe | 076efc7 | 2006-10-27 11:24:25 +0200 | [diff] [blame] | 757 | if (td->write_iolog_file) |
Jens Axboe | 843a741 | 2006-06-01 21:14:21 -0700 | [diff] [blame] | 758 | write_iolog_close(td); |
Jens Axboe | 69cfd7e | 2007-02-07 13:58:53 +0100 | [diff] [blame] | 759 | if (td->exec_postrun) { |
| 760 | if (system(td->exec_postrun) < 0) |
| 761 | log_err("fio: postrun %s failed\n", td->exec_postrun); |
| 762 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 763 | |
| 764 | if (exitall_on_terminate) |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 765 | terminate_threads(td->groupid, 0); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 766 | |
| 767 | err: |
Jens Axboe | 5bf13a5 | 2007-02-17 01:51:47 +0100 | [diff] [blame] | 768 | if (td->error) |
| 769 | printf("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 770 | close_files(td); |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 771 | close_ioengine(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 772 | cleanup_io_u(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 773 | td_set_runstate(td, TD_EXITED); |
Jens Axboe | 43d7680 | 2007-02-21 16:35:29 +0100 | [diff] [blame] | 774 | return (void *) (unsigned long) td->error; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 775 | } |
| 776 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 777 | /* |
| 778 | * We cannot pass the td data into a forked process, so attach the td and |
| 779 | * pass it to the thread worker. |
| 780 | */ |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 781 | static int fork_main(int shmid, int offset) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 782 | { |
| 783 | struct thread_data *td; |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 784 | void *data, *ret; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 785 | |
| 786 | data = shmat(shmid, NULL, 0); |
| 787 | if (data == (void *) -1) { |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 788 | int __err = errno; |
| 789 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 790 | perror("shmat"); |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 791 | return __err; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 792 | } |
| 793 | |
| 794 | td = data + offset * sizeof(struct thread_data); |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 795 | ret = thread_main(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 796 | shmdt(data); |
Jens Axboe | 43d7680 | 2007-02-21 16:35:29 +0100 | [diff] [blame] | 797 | return (int) (unsigned long) ret; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 798 | } |
| 799 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 800 | /* |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 801 | * Run over the job map and reap the threads that have exited, if any. |
| 802 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 803 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
| 804 | { |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 805 | struct thread_data *td; |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 806 | int i, cputhreads, pending, status, ret; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 807 | |
| 808 | /* |
| 809 | * reap exited threads (TD_EXITED -> TD_REAPED) |
| 810 | */ |
Jens Axboe | 4d2413c | 2006-11-23 11:58:59 +0100 | [diff] [blame] | 811 | pending = cputhreads = 0; |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 812 | for_each_td(td, i) { |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 813 | /* |
| 814 | * ->io_ops is NULL for a thread that has closed its |
| 815 | * io engine |
| 816 | */ |
| 817 | if (td->io_ops && td->io_ops->flags & FIO_CPUIO) |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 818 | cputhreads++; |
| 819 | |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 820 | if (td->runstate < TD_EXITED) { |
| 821 | /* |
| 822 | * check if someone quit or got killed in an unusual way |
| 823 | */ |
| 824 | ret = waitpid(td->pid, &status, WNOHANG); |
| 825 | if (ret < 0) |
| 826 | perror("waitpid"); |
| 827 | else if ((ret == td->pid) && WIFSIGNALED(status)) { |
| 828 | int sig = WTERMSIG(status); |
| 829 | |
| 830 | log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); |
| 831 | td_set_runstate(td, TD_REAPED); |
| 832 | goto reaped; |
| 833 | } |
| 834 | } |
| 835 | |
Jens Axboe | 4d2413c | 2006-11-23 11:58:59 +0100 | [diff] [blame] | 836 | if (td->runstate != TD_EXITED) { |
| 837 | if (td->runstate < TD_RUNNING) |
| 838 | pending++; |
| 839 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 840 | continue; |
Jens Axboe | 4d2413c | 2006-11-23 11:58:59 +0100 | [diff] [blame] | 841 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 842 | |
Jens Axboe | 437c9b7 | 2007-02-13 18:20:37 +0100 | [diff] [blame] | 843 | if (td->error) |
| 844 | exit_value++; |
| 845 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 846 | td_set_runstate(td, TD_REAPED); |
| 847 | |
| 848 | if (td->use_thread) { |
| 849 | long ret; |
| 850 | |
| 851 | if (pthread_join(td->thread, (void *) &ret)) |
| 852 | perror("thread_join"); |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 853 | } else { |
| 854 | int status; |
| 855 | |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 856 | ret = waitpid(td->pid, &status, 0); |
| 857 | if (ret < 0) |
| 858 | perror("waitpid"); |
Jens Axboe | 73170f1 | 2007-02-17 06:20:19 +0100 | [diff] [blame] | 859 | else if (WIFEXITED(status) && WEXITSTATUS(status)) { |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 860 | if (!exit_value) |
| 861 | exit_value++; |
| 862 | } |
| 863 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 864 | |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 865 | reaped: |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 866 | (*nr_running)--; |
| 867 | (*m_rate) -= td->ratemin; |
| 868 | (*t_rate) -= td->rate; |
| 869 | } |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 870 | |
Jens Axboe | 4d2413c | 2006-11-23 11:58:59 +0100 | [diff] [blame] | 871 | if (*nr_running == cputhreads && !pending) |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 872 | terminate_threads(TERMINATE_ALL, 0); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 873 | } |
| 874 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 875 | /* |
| 876 | * Main function for kicking off and reaping jobs, as needed. |
| 877 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 878 | static void run_threads(void) |
| 879 | { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 880 | struct thread_data *td; |
| 881 | unsigned long spent; |
| 882 | int i, todo, nr_running, m_rate, t_rate, nr_started; |
Jens Axboe | fcb6ade | 2006-05-31 12:14:35 +0200 | [diff] [blame] | 883 | |
Jens Axboe | 2f9ade3 | 2006-10-20 11:25:52 +0200 | [diff] [blame] | 884 | if (fio_pin_memory()) |
| 885 | return; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 886 | |
Jens Axboe | c6ae0a5 | 2006-06-12 11:04:44 +0200 | [diff] [blame] | 887 | if (!terse_output) { |
| 888 | printf("Starting %d thread%s\n", thread_number, thread_number > 1 ? "s" : ""); |
| 889 | fflush(stdout); |
| 890 | } |
Jens Axboe | c04f7ec | 2006-05-31 10:13:16 +0200 | [diff] [blame] | 891 | |
Jens Axboe | 4efa970 | 2006-05-31 11:56:49 +0200 | [diff] [blame] | 892 | signal(SIGINT, sig_handler); |
| 893 | signal(SIGALRM, sig_handler); |
| 894 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 895 | todo = thread_number; |
| 896 | nr_running = 0; |
| 897 | nr_started = 0; |
| 898 | m_rate = t_rate = 0; |
| 899 | |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 900 | for_each_td(td, i) { |
Jens Axboe | 263e529 | 2006-10-18 15:37:01 +0200 | [diff] [blame] | 901 | print_status_init(td->thread_number - 1); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 902 | |
Jens Axboe | 380cf26 | 2007-01-11 14:01:27 +0100 | [diff] [blame] | 903 | if (!td->create_serialize) { |
| 904 | init_disk_util(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 905 | continue; |
Jens Axboe | 380cf26 | 2007-01-11 14:01:27 +0100 | [diff] [blame] | 906 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 907 | |
| 908 | /* |
| 909 | * do file setup here so it happens sequentially, |
| 910 | * we don't want X number of threads getting their |
| 911 | * client data interspersed on disk |
| 912 | */ |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 913 | if (setup_files(td)) { |
Jens Axboe | 5bf13a5 | 2007-02-17 01:51:47 +0100 | [diff] [blame] | 914 | exit_value++; |
| 915 | if (td->error) |
| 916 | log_err("fio: pid=%d, err=%d/%s\n", td->pid, td->error, td->verror); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 917 | td_set_runstate(td, TD_REAPED); |
| 918 | todo--; |
| 919 | } |
Jens Axboe | 380cf26 | 2007-01-11 14:01:27 +0100 | [diff] [blame] | 920 | |
| 921 | init_disk_util(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 922 | } |
| 923 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 924 | while (todo) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 925 | struct thread_data *map[MAX_JOBS]; |
| 926 | struct timeval this_start; |
| 927 | int this_jobs = 0, left; |
| 928 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 929 | /* |
| 930 | * create threads (TD_NOT_CREATED -> TD_CREATED) |
| 931 | */ |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 932 | for_each_td(td, i) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 933 | if (td->runstate != TD_NOT_CREATED) |
| 934 | continue; |
| 935 | |
| 936 | /* |
| 937 | * never got a chance to start, killed by other |
| 938 | * thread for some reason |
| 939 | */ |
| 940 | if (td->terminate) { |
| 941 | todo--; |
| 942 | continue; |
| 943 | } |
| 944 | |
| 945 | if (td->start_delay) { |
Jens Axboe | 263e529 | 2006-10-18 15:37:01 +0200 | [diff] [blame] | 946 | spent = mtime_since_genesis(); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 947 | |
| 948 | if (td->start_delay * 1000 > spent) |
| 949 | continue; |
| 950 | } |
| 951 | |
| 952 | if (td->stonewall && (nr_started || nr_running)) |
| 953 | break; |
| 954 | |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 955 | /* |
| 956 | * Set state to created. Thread will transition |
| 957 | * to TD_INITIALIZED when it's done setting up. |
| 958 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 959 | td_set_runstate(td, TD_CREATED); |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 960 | map[this_jobs++] = td; |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 961 | fio_sem_init(&startup_sem, 1); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 962 | nr_started++; |
| 963 | |
| 964 | if (td->use_thread) { |
| 965 | if (pthread_create(&td->thread, NULL, thread_main, td)) { |
| 966 | perror("thread_create"); |
| 967 | nr_started--; |
| 968 | } |
| 969 | } else { |
| 970 | if (fork()) |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 971 | fio_sem_down(&startup_sem); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 972 | else { |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 973 | int ret = fork_main(shm_id, i); |
| 974 | |
| 975 | exit(ret); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 976 | } |
| 977 | } |
| 978 | } |
| 979 | |
| 980 | /* |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 981 | * Wait for the started threads to transition to |
| 982 | * TD_INITIALIZED. |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 983 | */ |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 984 | fio_gettime(&this_start, NULL); |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 985 | left = this_jobs; |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 986 | while (left && !fio_abort) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 987 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
| 988 | break; |
| 989 | |
| 990 | usleep(100000); |
| 991 | |
| 992 | for (i = 0; i < this_jobs; i++) { |
| 993 | td = map[i]; |
| 994 | if (!td) |
| 995 | continue; |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 996 | if (td->runstate == TD_INITIALIZED) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 997 | map[i] = NULL; |
| 998 | left--; |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 999 | } else if (td->runstate >= TD_EXITED) { |
| 1000 | map[i] = NULL; |
| 1001 | left--; |
| 1002 | todo--; |
| 1003 | nr_running++; /* work-around... */ |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1004 | } |
| 1005 | } |
| 1006 | } |
| 1007 | |
| 1008 | if (left) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 1009 | log_err("fio: %d jobs failed to start\n", left); |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1010 | for (i = 0; i < this_jobs; i++) { |
| 1011 | td = map[i]; |
| 1012 | if (!td) |
| 1013 | continue; |
| 1014 | kill(td->pid, SIGTERM); |
| 1015 | } |
| 1016 | break; |
| 1017 | } |
| 1018 | |
| 1019 | /* |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 1020 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1021 | */ |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 1022 | for_each_td(td, i) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1023 | if (td->runstate != TD_INITIALIZED) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1024 | continue; |
| 1025 | |
| 1026 | td_set_runstate(td, TD_RUNNING); |
| 1027 | nr_running++; |
| 1028 | nr_started--; |
| 1029 | m_rate += td->ratemin; |
| 1030 | t_rate += td->rate; |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1031 | todo--; |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 1032 | fio_sem_up(&td->mutex); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1033 | } |
| 1034 | |
| 1035 | reap_threads(&nr_running, &t_rate, &m_rate); |
| 1036 | |
| 1037 | if (todo) |
| 1038 | usleep(100000); |
| 1039 | } |
| 1040 | |
| 1041 | while (nr_running) { |
| 1042 | reap_threads(&nr_running, &t_rate, &m_rate); |
| 1043 | usleep(10000); |
| 1044 | } |
| 1045 | |
| 1046 | update_io_ticks(); |
Jens Axboe | 2f9ade3 | 2006-10-20 11:25:52 +0200 | [diff] [blame] | 1047 | fio_unpin_memory(); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1048 | } |
| 1049 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1050 | int main(int argc, char *argv[]) |
| 1051 | { |
Jens Axboe | 29d610e | 2007-02-06 13:25:33 +0100 | [diff] [blame] | 1052 | long ps; |
| 1053 | |
Jens Axboe | dbe1125 | 2007-02-11 00:19:51 +0100 | [diff] [blame] | 1054 | /* |
| 1055 | * We need locale for number printing, if it isn't set then just |
| 1056 | * go with the US format. |
| 1057 | */ |
| 1058 | if (!getenv("LC_NUMERIC")) |
| 1059 | setlocale(LC_NUMERIC, "en_US"); |
| 1060 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1061 | if (parse_options(argc, argv)) |
| 1062 | return 1; |
| 1063 | |
| 1064 | if (!thread_number) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 1065 | log_err("Nothing to do\n"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1066 | return 1; |
| 1067 | } |
| 1068 | |
Jens Axboe | 29d610e | 2007-02-06 13:25:33 +0100 | [diff] [blame] | 1069 | ps = sysconf(_SC_PAGESIZE); |
| 1070 | if (ps < 0) { |
| 1071 | log_err("Failed to get page size\n"); |
| 1072 | return 1; |
| 1073 | } |
| 1074 | |
| 1075 | page_mask = ps - 1; |
| 1076 | |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 1077 | if (write_bw_log) { |
| 1078 | setup_log(&agg_io_log[DDIR_READ]); |
| 1079 | setup_log(&agg_io_log[DDIR_WRITE]); |
| 1080 | } |
| 1081 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1082 | disk_util_timer_arm(); |
| 1083 | |
| 1084 | run_threads(); |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 1085 | |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 1086 | if (!fio_abort) { |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 1087 | show_run_stats(); |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 1088 | if (write_bw_log) { |
| 1089 | __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); |
| 1090 | __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); |
| 1091 | } |
| 1092 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1093 | |
Jens Axboe | 437c9b7 | 2007-02-13 18:20:37 +0100 | [diff] [blame] | 1094 | return exit_value; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1095 | } |