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) { |
Jens Axboe | d924494 | 2007-03-05 12:32:32 +0100 | [diff] [blame^] | 70 | kill(td->pid, SIGQUIT); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 71 | td->terminate = 1; |
| 72 | td->start_delay = 0; |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 73 | if (forced_kill) |
| 74 | td_set_runstate(td, TD_EXITED); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 75 | } |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | static void sig_handler(int sig) |
| 80 | { |
| 81 | switch (sig) { |
| 82 | case SIGALRM: |
| 83 | update_io_ticks(); |
| 84 | disk_util_timer_arm(); |
| 85 | print_thread_status(); |
| 86 | break; |
| 87 | default: |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 88 | printf("\nfio: terminating on signal %d\n", sig); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 89 | fflush(stdout); |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 90 | terminate_threads(TERMINATE_ALL, 0); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 91 | break; |
| 92 | } |
| 93 | } |
| 94 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 95 | /* |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 96 | * Check if we are above the minimum rate given. |
| 97 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 98 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
| 99 | { |
Jens Axboe | 0904200 | 2007-02-23 10:56:22 +0100 | [diff] [blame] | 100 | unsigned long long bytes = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 101 | unsigned long spent; |
| 102 | unsigned long rate; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 103 | |
| 104 | /* |
Jens Axboe | 780bf1a | 2007-02-28 11:13:49 +0100 | [diff] [blame] | 105 | * No minimum rate set, always ok |
| 106 | */ |
| 107 | if (!td->ratemin) |
| 108 | return 0; |
| 109 | |
| 110 | /* |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 111 | * allow a 2 second settle period in the beginning |
| 112 | */ |
| 113 | if (mtime_since(&td->start, now) < 2000) |
| 114 | return 0; |
| 115 | |
Jens Axboe | 0904200 | 2007-02-23 10:56:22 +0100 | [diff] [blame] | 116 | if (td_read(td)) |
| 117 | bytes += td->this_io_bytes[DDIR_READ]; |
| 118 | if (td_write(td)) |
| 119 | bytes += td->this_io_bytes[DDIR_WRITE]; |
| 120 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 121 | /* |
| 122 | * if rate blocks is set, sample is running |
| 123 | */ |
| 124 | if (td->rate_bytes) { |
| 125 | spent = mtime_since(&td->lastrate, now); |
| 126 | if (spent < td->ratecycle) |
| 127 | return 0; |
| 128 | |
Jens Axboe | 413dd45 | 2007-02-23 09:26:09 +0100 | [diff] [blame] | 129 | if (bytes < td->rate_bytes) { |
| 130 | fprintf(f_out, "%s: min rate %u not met\n", td->name, td->ratemin); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 131 | return 1; |
Jens Axboe | 413dd45 | 2007-02-23 09:26:09 +0100 | [diff] [blame] | 132 | } else { |
| 133 | rate = (bytes - td->rate_bytes) / spent; |
| 134 | if (rate < td->ratemin || bytes < td->rate_bytes) { |
| 135 | fprintf(f_out, "%s: min rate %u not met, got %luKiB/sec\n", td->name, td->ratemin, rate); |
| 136 | return 1; |
| 137 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 138 | } |
| 139 | } |
| 140 | |
Jens Axboe | 0904200 | 2007-02-23 10:56:22 +0100 | [diff] [blame] | 141 | td->rate_bytes = bytes; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 142 | memcpy(&td->lastrate, now, sizeof(*now)); |
| 143 | return 0; |
| 144 | } |
| 145 | |
| 146 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
| 147 | { |
| 148 | if (!td->timeout) |
| 149 | return 0; |
| 150 | if (mtime_since(&td->epoch, t) >= td->timeout * 1000) |
| 151 | return 1; |
| 152 | |
| 153 | return 0; |
| 154 | } |
| 155 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 156 | /* |
| 157 | * When job exits, we can cancel the in-flight IO if we are using async |
| 158 | * io. Attempt to do so. |
| 159 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 160 | static void cleanup_pending_aio(struct thread_data *td) |
| 161 | { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 162 | struct list_head *entry, *n; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 163 | struct io_u *io_u; |
| 164 | int r; |
| 165 | |
| 166 | /* |
| 167 | * get immediately available events, if any |
| 168 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 169 | r = io_u_queued_complete(td, 0); |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 170 | if (r < 0) |
| 171 | return; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 172 | |
| 173 | /* |
| 174 | * now cancel remaining active events |
| 175 | */ |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 176 | if (td->io_ops->cancel) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 177 | list_for_each_safe(entry, n, &td->io_u_busylist) { |
| 178 | io_u = list_entry(entry, struct io_u, list); |
| 179 | |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 180 | /* |
| 181 | * if the io_u isn't in flight, then that generally |
| 182 | * means someone leaked an io_u. complain but fix |
| 183 | * it up, so we don't stall here. |
| 184 | */ |
| 185 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { |
| 186 | log_err("fio: non-busy IO on busy list\n"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 187 | put_io_u(td, io_u); |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 188 | } else { |
| 189 | r = td->io_ops->cancel(td, io_u); |
| 190 | if (!r) |
| 191 | put_io_u(td, io_u); |
| 192 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 193 | } |
| 194 | } |
| 195 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 196 | if (td->cur_depth) |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 197 | r = io_u_queued_complete(td, td->cur_depth); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 198 | } |
| 199 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 200 | /* |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 201 | * Helper to handle the final sync of a file. Works just like the normal |
| 202 | * io path, just does everything sync. |
| 203 | */ |
| 204 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) |
| 205 | { |
| 206 | struct io_u *io_u = __get_io_u(td); |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 207 | int ret; |
| 208 | |
| 209 | if (!io_u) |
| 210 | return 1; |
| 211 | |
| 212 | io_u->ddir = DDIR_SYNC; |
| 213 | io_u->file = f; |
| 214 | |
| 215 | if (td_io_prep(td, io_u)) { |
| 216 | put_io_u(td, io_u); |
| 217 | return 1; |
| 218 | } |
| 219 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 220 | requeue: |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 221 | ret = td_io_queue(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 222 | if (ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 223 | td_verror(td, io_u->error, "td_io_queue"); |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 224 | put_io_u(td, io_u); |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 225 | return 1; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 226 | } else if (ret == FIO_Q_QUEUED) { |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 227 | if (io_u_queued_complete(td, 1) < 0) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 228 | return 1; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 229 | } else if (ret == FIO_Q_COMPLETED) { |
| 230 | if (io_u->error) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 231 | td_verror(td, io_u->error, "td_io_queue"); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 232 | return 1; |
| 233 | } |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 234 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 235 | if (io_u_sync_complete(td, io_u) < 0) |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 236 | return 1; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 237 | } else if (ret == FIO_Q_BUSY) { |
| 238 | if (td_io_commit(td)) |
| 239 | return 1; |
| 240 | goto requeue; |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 241 | } |
| 242 | |
| 243 | return 0; |
| 244 | } |
| 245 | |
| 246 | /* |
Jens Axboe | 34403fb | 2007-03-02 21:43:25 +0100 | [diff] [blame] | 247 | * The main verify engine. Runs over the writes we previously submitted, |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 248 | * reads the blocks back in, and checks the crc/md5 of the data. |
| 249 | */ |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 250 | static void do_verify(struct thread_data *td) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 251 | { |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 252 | struct fio_file *f; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 253 | struct io_u *io_u; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 254 | int ret, i, min_events; |
Jens Axboe | e5b401d | 2006-10-18 16:03:40 +0200 | [diff] [blame] | 255 | |
| 256 | /* |
| 257 | * sync io first and invalidate cache, to make sure we really |
| 258 | * read from disk. |
| 259 | */ |
| 260 | for_each_file(td, f, i) { |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 261 | if (fio_io_sync(td, f)) |
| 262 | break; |
| 263 | if (file_invalidate_cache(td, f)) |
| 264 | break; |
Jens Axboe | e5b401d | 2006-10-18 16:03:40 +0200 | [diff] [blame] | 265 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 266 | |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 267 | if (td->error) |
| 268 | return; |
| 269 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 270 | td_set_runstate(td, TD_VERIFYING); |
| 271 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 272 | io_u = NULL; |
| 273 | while (!td->terminate) { |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 274 | int ret2; |
| 275 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 276 | io_u = __get_io_u(td); |
| 277 | if (!io_u) |
| 278 | break; |
| 279 | |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame] | 280 | if (runtime_exceeded(td, &io_u->start_time)) { |
| 281 | put_io_u(td, io_u); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 282 | break; |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame] | 283 | } |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 284 | |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame] | 285 | if (get_next_verify(td, io_u)) { |
| 286 | put_io_u(td, io_u); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 287 | break; |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame] | 288 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 289 | |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame] | 290 | if (td_io_prep(td, io_u)) { |
| 291 | put_io_u(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 292 | break; |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame] | 293 | } |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 294 | |
| 295 | io_u->end_io = verify_io_u; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 296 | requeue: |
Jens Axboe | 45bee28 | 2006-10-18 15:26:44 +0200 | [diff] [blame] | 297 | ret = td_io_queue(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 298 | |
| 299 | switch (ret) { |
| 300 | case FIO_Q_COMPLETED: |
| 301 | if (io_u->error) |
Jens Axboe | 22819ec | 2007-02-18 07:47:14 +0100 | [diff] [blame] | 302 | ret = -io_u->error; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 303 | else if (io_u->xfer_buflen != io_u->resid && io_u->resid) { |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 304 | int bytes = io_u->xfer_buflen - io_u->resid; |
| 305 | |
| 306 | io_u->xfer_buflen = io_u->resid; |
| 307 | io_u->xfer_buf += bytes; |
| 308 | goto requeue; |
| 309 | } |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 310 | ret = io_u_sync_complete(td, io_u); |
Jens Axboe | 49db69a | 2007-02-21 20:28:14 +0100 | [diff] [blame] | 311 | if (ret < 0) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 312 | break; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 313 | continue; |
| 314 | case FIO_Q_QUEUED: |
| 315 | break; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 316 | case FIO_Q_BUSY: |
| 317 | requeue_io_u(td, &io_u); |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 318 | ret2 = td_io_commit(td); |
| 319 | if (ret2 < 0) |
| 320 | ret = ret2; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 321 | break; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 322 | default: |
| 323 | assert(ret < 0); |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 324 | td_verror(td, -ret, "td_io_queue"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 325 | break; |
| 326 | } |
| 327 | |
Jens Axboe | 9978463 | 2007-02-19 10:06:17 +0100 | [diff] [blame] | 328 | if (ret < 0 || td->error) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 329 | break; |
| 330 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 331 | /* |
| 332 | * if we can queue more, do so. but check if there are |
| 333 | * completed io_u's first. |
| 334 | */ |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 335 | min_events = 0; |
Jens Axboe | e916b39 | 2007-02-20 14:37:26 +0100 | [diff] [blame] | 336 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 337 | min_events = 1; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 338 | |
Jens Axboe | e916b39 | 2007-02-20 14:37:26 +0100 | [diff] [blame] | 339 | if (td->cur_depth > td->iodepth_low) |
| 340 | min_events = td->cur_depth - td->iodepth_low; |
| 341 | } |
| 342 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 343 | /* |
| 344 | * Reap required number of io units, if any, and do the |
| 345 | * verification on them through the callback handler |
| 346 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 347 | if (io_u_queued_complete(td, min_events) < 0) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 348 | break; |
| 349 | } |
| 350 | |
Jens Axboe | c01c039 | 2007-02-26 12:43:42 +0100 | [diff] [blame] | 351 | if (!td->error) { |
| 352 | min_events = td->cur_depth; |
| 353 | |
| 354 | if (min_events) |
| 355 | ret = io_u_queued_complete(td, min_events); |
| 356 | } else |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 357 | cleanup_pending_aio(td); |
| 358 | |
| 359 | td_set_runstate(td, TD_RUNNING); |
| 360 | } |
| 361 | |
Jens Axboe | 32cd46a | 2006-06-07 13:40:40 +0200 | [diff] [blame] | 362 | /* |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 363 | * Not really an io thread, all it does is burn CPU cycles in the specified |
| 364 | * manner. |
| 365 | */ |
| 366 | static void do_cpuio(struct thread_data *td) |
| 367 | { |
| 368 | struct timeval e; |
| 369 | int split = 100 / td->cpuload; |
| 370 | int i = 0; |
| 371 | |
| 372 | while (!td->terminate) { |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 373 | fio_gettime(&e, NULL); |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 374 | |
| 375 | if (runtime_exceeded(td, &e)) |
| 376 | break; |
| 377 | |
| 378 | if (!(i % split)) |
| 379 | __usec_sleep(10000); |
| 380 | else |
| 381 | usec_sleep(td, 10000); |
| 382 | |
| 383 | i++; |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | /* |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 388 | * 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] | 389 | * and reaps them, checking for rate and errors along the way. |
| 390 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 391 | static void do_io(struct thread_data *td) |
| 392 | { |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 393 | struct timeval s; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 394 | unsigned long usec; |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 395 | int i, ret = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 396 | |
Jens Axboe | 5853e5a | 2006-06-08 14:41:05 +0200 | [diff] [blame] | 397 | td_set_runstate(td, TD_RUNNING); |
| 398 | |
Jens Axboe | 3951414 | 2007-02-12 18:49:58 +0100 | [diff] [blame] | 399 | 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] | 400 | struct timeval comp_time; |
| 401 | long bytes_done = 0; |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 402 | int min_evts = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 403 | struct io_u *io_u; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 404 | int ret2; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 405 | |
| 406 | if (td->terminate) |
| 407 | break; |
| 408 | |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 409 | io_u = get_io_u(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 410 | if (!io_u) |
| 411 | break; |
| 412 | |
| 413 | memcpy(&s, &io_u->start_time, sizeof(s)); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 414 | |
| 415 | if (runtime_exceeded(td, &s)) { |
| 416 | put_io_u(td, io_u); |
| 417 | break; |
| 418 | } |
Jens Axboe | cec6b55 | 2007-02-06 20:15:38 +0100 | [diff] [blame] | 419 | requeue: |
Jens Axboe | 45bee28 | 2006-10-18 15:26:44 +0200 | [diff] [blame] | 420 | ret = td_io_queue(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 421 | |
| 422 | switch (ret) { |
| 423 | case FIO_Q_COMPLETED: |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 424 | if (io_u->error) |
| 425 | ret = -io_u->error; |
| 426 | else if (io_u->xfer_buflen != io_u->resid && io_u->resid) { |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 427 | int bytes = io_u->xfer_buflen - io_u->resid; |
| 428 | |
| 429 | io_u->xfer_buflen = io_u->resid; |
| 430 | io_u->xfer_buf += bytes; |
| 431 | goto requeue; |
| 432 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 433 | fio_gettime(&comp_time, NULL); |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 434 | bytes_done = io_u_sync_complete(td, io_u); |
Jens Axboe | 9978463 | 2007-02-19 10:06:17 +0100 | [diff] [blame] | 435 | if (bytes_done < 0) |
| 436 | ret = bytes_done; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 437 | break; |
| 438 | case FIO_Q_QUEUED: |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 439 | /* |
| 440 | * if the engine doesn't have a commit hook, |
| 441 | * the io_u is really queued. if it does have such |
| 442 | * a hook, it has to call io_u_queued() itself. |
| 443 | */ |
| 444 | if (td->io_ops->commit == NULL) |
| 445 | io_u_queued(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 446 | break; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 447 | case FIO_Q_BUSY: |
| 448 | requeue_io_u(td, &io_u); |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 449 | ret2 = td_io_commit(td); |
| 450 | if (ret2 < 0) |
| 451 | ret = ret2; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 452 | break; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 453 | default: |
| 454 | assert(ret < 0); |
| 455 | put_io_u(td, io_u); |
| 456 | break; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 457 | } |
| 458 | |
Jens Axboe | 9978463 | 2007-02-19 10:06:17 +0100 | [diff] [blame] | 459 | if (ret < 0 || td->error) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 460 | break; |
| 461 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 462 | /* |
| 463 | * See if we need to complete some commands |
| 464 | */ |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 465 | if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 466 | min_evts = 0; |
Jens Axboe | e916b39 | 2007-02-20 14:37:26 +0100 | [diff] [blame] | 467 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 468 | min_evts = 1; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 469 | |
Jens Axboe | e916b39 | 2007-02-20 14:37:26 +0100 | [diff] [blame] | 470 | if (td->cur_depth > td->iodepth_low) |
| 471 | min_evts = td->cur_depth - td->iodepth_low; |
| 472 | } |
| 473 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 474 | fio_gettime(&comp_time, NULL); |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 475 | bytes_done = io_u_queued_complete(td, min_evts); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 476 | if (bytes_done < 0) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 477 | break; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 478 | } |
| 479 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 480 | if (!bytes_done) |
| 481 | continue; |
| 482 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 483 | /* |
| 484 | * the rate is batched for now, it should work for batches |
| 485 | * of completions except the very first one which may look |
| 486 | * a little bursty |
| 487 | */ |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 488 | usec = utime_since(&s, &comp_time); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 489 | |
Jens Axboe | 413dd45 | 2007-02-23 09:26:09 +0100 | [diff] [blame] | 490 | rate_throttle(td, usec, bytes_done); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 491 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 492 | if (check_min_rate(td, &comp_time)) { |
Jens Axboe | 98aa62d | 2006-11-07 14:16:19 +0100 | [diff] [blame] | 493 | if (exitall_on_terminate) |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 494 | terminate_threads(td->groupid, 0); |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 495 | td_verror(td, ENODATA, "check_min_rate"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 496 | break; |
| 497 | } |
| 498 | |
Jens Axboe | 9c1f743 | 2007-01-03 20:43:19 +0100 | [diff] [blame] | 499 | if (td->thinktime) { |
| 500 | unsigned long long b; |
| 501 | |
| 502 | b = td->io_blocks[0] + td->io_blocks[1]; |
Jens Axboe | 48097d5 | 2007-02-17 06:30:44 +0100 | [diff] [blame] | 503 | if (!(b % td->thinktime_blocks)) { |
| 504 | int left; |
| 505 | |
| 506 | if (td->thinktime_spin) |
| 507 | __usec_sleep(td->thinktime_spin); |
| 508 | |
| 509 | left = td->thinktime - td->thinktime_spin; |
| 510 | if (left) |
| 511 | usec_sleep(td, left); |
| 512 | } |
Jens Axboe | 9c1f743 | 2007-01-03 20:43:19 +0100 | [diff] [blame] | 513 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 514 | } |
| 515 | |
Jens Axboe | 4d2413c | 2006-11-23 11:58:59 +0100 | [diff] [blame] | 516 | if (!td->error) { |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 517 | struct fio_file *f; |
| 518 | |
Jens Axboe | c01c039 | 2007-02-26 12:43:42 +0100 | [diff] [blame] | 519 | i = td->cur_depth; |
| 520 | if (i) |
| 521 | ret = io_u_queued_complete(td, i); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 522 | |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 523 | if (should_fsync(td) && td->end_fsync) { |
| 524 | td_set_runstate(td, TD_FSYNCING); |
| 525 | for_each_file(td, f, i) |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 526 | fio_io_sync(td, f); |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 527 | } |
Jens Axboe | c01c039 | 2007-02-26 12:43:42 +0100 | [diff] [blame] | 528 | } else |
| 529 | cleanup_pending_aio(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 530 | } |
| 531 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 532 | static void cleanup_io_u(struct thread_data *td) |
| 533 | { |
| 534 | struct list_head *entry, *n; |
| 535 | struct io_u *io_u; |
| 536 | |
| 537 | list_for_each_safe(entry, n, &td->io_u_freelist) { |
| 538 | io_u = list_entry(entry, struct io_u, list); |
| 539 | |
| 540 | list_del(&io_u->list); |
| 541 | free(io_u); |
| 542 | } |
| 543 | |
Jens Axboe | 2f9ade3 | 2006-10-20 11:25:52 +0200 | [diff] [blame] | 544 | free_io_mem(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 545 | } |
| 546 | |
Jens Axboe | 6b9cea2 | 2006-10-30 17:00:24 +0100 | [diff] [blame] | 547 | /* |
| 548 | * "randomly" fill the buffer contents |
| 549 | */ |
Jens Axboe | 66eeb29 | 2006-11-01 08:35:44 +0100 | [diff] [blame] | 550 | 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] | 551 | { |
Jens Axboe | 66eeb29 | 2006-11-01 08:35:44 +0100 | [diff] [blame] | 552 | int *ptr = io_u->buf; |
Jens Axboe | 6b9cea2 | 2006-10-30 17:00:24 +0100 | [diff] [blame] | 553 | |
| 554 | while ((void *) ptr - io_u->buf < max_bs) { |
| 555 | *ptr = rand() * 0x9e370001; |
| 556 | ptr++; |
| 557 | } |
| 558 | } |
| 559 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 560 | static int init_io_u(struct thread_data *td) |
| 561 | { |
| 562 | struct io_u *io_u; |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 563 | unsigned int max_bs; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 564 | int i, max_units; |
| 565 | char *p; |
| 566 | |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 567 | if (td->io_ops->flags & FIO_CPUIO) |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 568 | return 0; |
| 569 | |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 570 | if (td->io_ops->flags & FIO_SYNCIO) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 571 | max_units = 1; |
| 572 | else |
| 573 | max_units = td->iodepth; |
| 574 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 575 | 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] | 576 | td->orig_buffer_size = max_bs * max_units; |
| 577 | |
Jens Axboe | d0bdaf4 | 2006-12-20 14:40:44 +0100 | [diff] [blame] | 578 | if (td->mem_type == MEM_SHMHUGE || td->mem_type == MEM_MMAPHUGE) |
Jens Axboe | 56bb17f | 2006-12-20 20:27:36 +0100 | [diff] [blame] | 579 | 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] | 580 | else |
Jens Axboe | 29d610e | 2007-02-06 13:25:33 +0100 | [diff] [blame] | 581 | td->orig_buffer_size += page_mask; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 582 | |
Jens Axboe | 2f9ade3 | 2006-10-20 11:25:52 +0200 | [diff] [blame] | 583 | if (allocate_io_mem(td)) |
| 584 | return 1; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 585 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 586 | p = ALIGN(td->orig_buffer); |
| 587 | for (i = 0; i < max_units; i++) { |
| 588 | io_u = malloc(sizeof(*io_u)); |
| 589 | memset(io_u, 0, sizeof(*io_u)); |
| 590 | INIT_LIST_HEAD(&io_u->list); |
| 591 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 592 | io_u->buf = p + max_bs * i; |
Jens Axboe | 6b9cea2 | 2006-10-30 17:00:24 +0100 | [diff] [blame] | 593 | if (td_write(td) || td_rw(td)) |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 594 | fill_rand_buf(io_u, max_bs); |
Jens Axboe | 6b9cea2 | 2006-10-30 17:00:24 +0100 | [diff] [blame] | 595 | |
Jens Axboe | b1ff340 | 2006-02-17 11:35:58 +0100 | [diff] [blame] | 596 | io_u->index = i; |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 597 | io_u->flags = IO_U_F_FREE; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 598 | list_add(&io_u->list, &td->io_u_freelist); |
| 599 | } |
| 600 | |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 601 | io_u_init_timeout(); |
| 602 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 603 | return 0; |
| 604 | } |
| 605 | |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 606 | static int switch_ioscheduler(struct thread_data *td) |
| 607 | { |
| 608 | char tmp[256], tmp2[128]; |
| 609 | FILE *f; |
| 610 | int ret; |
| 611 | |
Jens Axboe | f48b467 | 2006-10-27 11:30:07 +0200 | [diff] [blame] | 612 | if (td->io_ops->flags & FIO_CPUIO) |
| 613 | return 0; |
| 614 | |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 615 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
| 616 | |
| 617 | f = fopen(tmp, "r+"); |
| 618 | if (!f) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 619 | td_verror(td, errno, "fopen"); |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 620 | return 1; |
| 621 | } |
| 622 | |
| 623 | /* |
| 624 | * Set io scheduler. |
| 625 | */ |
| 626 | ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f); |
| 627 | if (ferror(f) || ret != 1) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 628 | td_verror(td, errno, "fwrite"); |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 629 | fclose(f); |
| 630 | return 1; |
| 631 | } |
| 632 | |
| 633 | rewind(f); |
| 634 | |
| 635 | /* |
| 636 | * Read back and check that the selected scheduler is now the default. |
| 637 | */ |
| 638 | ret = fread(tmp, 1, sizeof(tmp), f); |
| 639 | if (ferror(f) || ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 640 | td_verror(td, errno, "fread"); |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 641 | fclose(f); |
| 642 | return 1; |
| 643 | } |
| 644 | |
| 645 | sprintf(tmp2, "[%s]", td->ioscheduler); |
| 646 | if (!strstr(tmp, tmp2)) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 647 | log_err("fio: io scheduler %s not found\n", td->ioscheduler); |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 648 | td_verror(td, EINVAL, "iosched_switch"); |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 649 | fclose(f); |
| 650 | return 1; |
| 651 | } |
| 652 | |
| 653 | fclose(f); |
| 654 | return 0; |
| 655 | } |
| 656 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 657 | static void clear_io_state(struct thread_data *td) |
| 658 | { |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 659 | struct fio_file *f; |
| 660 | int i; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 661 | |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 662 | 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] | 663 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 664 | td->zone_bytes = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 665 | |
Jens Axboe | c1324df | 2007-02-19 19:06:41 +0100 | [diff] [blame] | 666 | td->last_was_sync = 0; |
| 667 | |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 668 | for_each_file(td, f, i) { |
Jens Axboe | c1324df | 2007-02-19 19:06:41 +0100 | [diff] [blame] | 669 | f->last_completed_pos = 0; |
| 670 | |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 671 | f->last_pos = 0; |
| 672 | if (td->io_ops->flags & FIO_SYNCIO) |
| 673 | lseek(f->fd, SEEK_SET, 0); |
| 674 | |
| 675 | if (f->file_map) |
| 676 | memset(f->file_map, 0, f->num_maps * sizeof(long)); |
| 677 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 678 | } |
| 679 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 680 | /* |
| 681 | * Entry point for the thread based jobs. The process based jobs end up |
| 682 | * here as well, after a little setup. |
| 683 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 684 | static void *thread_main(void *data) |
| 685 | { |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 686 | unsigned long long runtime[2]; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 687 | struct thread_data *td = data; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 688 | |
| 689 | if (!td->use_thread) |
| 690 | setsid(); |
| 691 | |
| 692 | td->pid = getpid(); |
| 693 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 694 | INIT_LIST_HEAD(&td->io_u_freelist); |
| 695 | INIT_LIST_HEAD(&td->io_u_busylist); |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 696 | INIT_LIST_HEAD(&td->io_u_requeues); |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 697 | INIT_LIST_HEAD(&td->io_hist_list); |
| 698 | INIT_LIST_HEAD(&td->io_log_list); |
| 699 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 700 | if (init_io_u(td)) |
| 701 | goto err; |
| 702 | |
| 703 | if (fio_setaffinity(td) == -1) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 704 | td_verror(td, errno, "cpu_set_affinity"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 705 | goto err; |
| 706 | } |
| 707 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 708 | if (init_iolog(td)) |
| 709 | goto err; |
| 710 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 711 | if (td->ioprio) { |
| 712 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 713 | td_verror(td, errno, "ioprio_set"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 714 | goto err; |
| 715 | } |
| 716 | } |
| 717 | |
Jens Axboe | 1056eaa | 2006-07-13 10:33:45 -0700 | [diff] [blame] | 718 | if (nice(td->nice) == -1) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 719 | td_verror(td, errno, "nice"); |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 720 | goto err; |
| 721 | } |
| 722 | |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 723 | if (init_random_state(td)) |
| 724 | goto err; |
| 725 | |
Jens Axboe | 56f9498 | 2006-10-24 09:33:42 +0200 | [diff] [blame] | 726 | if (td->ioscheduler && switch_ioscheduler(td)) |
| 727 | goto err; |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 728 | |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 729 | td_set_runstate(td, TD_INITIALIZED); |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 730 | fio_sem_up(&startup_sem); |
| 731 | fio_sem_down(&td->mutex); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 732 | |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 733 | if (!td->create_serialize && setup_files(td)) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 734 | goto err; |
Jens Axboe | 21972cd | 2006-11-23 12:39:16 +0100 | [diff] [blame] | 735 | if (open_files(td)) |
| 736 | goto err; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 737 | |
Jens Axboe | 7d6c528 | 2007-02-05 10:52:10 +0100 | [diff] [blame] | 738 | /* |
| 739 | * Do this late, as some IO engines would like to have the |
| 740 | * files setup prior to initializing structures. |
| 741 | */ |
| 742 | if (td_io_init(td)) |
| 743 | goto err; |
| 744 | |
Jens Axboe | 69cfd7e | 2007-02-07 13:58:53 +0100 | [diff] [blame] | 745 | if (td->exec_prerun) { |
| 746 | if (system(td->exec_prerun) < 0) |
| 747 | goto err; |
| 748 | } |
Jens Axboe | 4e0ba8a | 2006-06-06 09:36:28 +0200 | [diff] [blame] | 749 | |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 750 | fio_gettime(&td->epoch, NULL); |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 751 | memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 752 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 753 | |
| 754 | runtime[0] = runtime[1] = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 755 | while (td->loops--) { |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 756 | fio_gettime(&td->start, NULL); |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 757 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 758 | |
| 759 | if (td->ratemin) |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 760 | memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 761 | |
| 762 | clear_io_state(td); |
| 763 | prune_io_piece_log(td); |
| 764 | |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 765 | if (td->io_ops->flags & FIO_CPUIO) |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 766 | do_cpuio(td); |
| 767 | else |
| 768 | do_io(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 769 | |
Jens Axboe | 413dd45 | 2007-02-23 09:26:09 +0100 | [diff] [blame] | 770 | if (td_read(td) && td->io_bytes[DDIR_READ]) |
| 771 | runtime[DDIR_READ] += utime_since_now(&td->start); |
| 772 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) |
| 773 | runtime[DDIR_WRITE] += utime_since_now(&td->start); |
| 774 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 775 | if (td->error || td->terminate) |
| 776 | break; |
| 777 | |
| 778 | if (td->verify == VERIFY_NONE) |
| 779 | continue; |
| 780 | |
| 781 | clear_io_state(td); |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 782 | fio_gettime(&td->start, NULL); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 783 | |
| 784 | do_verify(td); |
| 785 | |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 786 | runtime[DDIR_READ] += utime_since_now(&td->start); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 787 | |
| 788 | if (td->error || td->terminate) |
| 789 | break; |
| 790 | } |
| 791 | |
Jens Axboe | 36dff96 | 2006-11-24 13:29:20 +0100 | [diff] [blame] | 792 | update_rusage_stat(td); |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 793 | fio_gettime(&td->end_time, NULL); |
| 794 | td->runtime[0] = runtime[0] / 1000; |
| 795 | td->runtime[1] = runtime[1] / 1000; |
| 796 | |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 797 | if (td->ts.bw_log) |
| 798 | finish_log(td, td->ts.bw_log, "bw"); |
| 799 | if (td->ts.slat_log) |
| 800 | finish_log(td, td->ts.slat_log, "slat"); |
| 801 | if (td->ts.clat_log) |
| 802 | finish_log(td, td->ts.clat_log, "clat"); |
Jens Axboe | 076efc7 | 2006-10-27 11:24:25 +0200 | [diff] [blame] | 803 | if (td->write_iolog_file) |
Jens Axboe | 843a741 | 2006-06-01 21:14:21 -0700 | [diff] [blame] | 804 | write_iolog_close(td); |
Jens Axboe | 69cfd7e | 2007-02-07 13:58:53 +0100 | [diff] [blame] | 805 | if (td->exec_postrun) { |
| 806 | if (system(td->exec_postrun) < 0) |
| 807 | log_err("fio: postrun %s failed\n", td->exec_postrun); |
| 808 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 809 | |
| 810 | if (exitall_on_terminate) |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 811 | terminate_threads(td->groupid, 0); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 812 | |
| 813 | err: |
Jens Axboe | 5bf13a5 | 2007-02-17 01:51:47 +0100 | [diff] [blame] | 814 | if (td->error) |
| 815 | 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] | 816 | close_files(td); |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 817 | close_ioengine(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 818 | cleanup_io_u(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 819 | td_set_runstate(td, TD_EXITED); |
Jens Axboe | 43d7680 | 2007-02-21 16:35:29 +0100 | [diff] [blame] | 820 | return (void *) (unsigned long) td->error; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 821 | } |
| 822 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 823 | /* |
| 824 | * We cannot pass the td data into a forked process, so attach the td and |
| 825 | * pass it to the thread worker. |
| 826 | */ |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 827 | static int fork_main(int shmid, int offset) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 828 | { |
| 829 | struct thread_data *td; |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 830 | void *data, *ret; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 831 | |
| 832 | data = shmat(shmid, NULL, 0); |
| 833 | if (data == (void *) -1) { |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 834 | int __err = errno; |
| 835 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 836 | perror("shmat"); |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 837 | return __err; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 838 | } |
| 839 | |
| 840 | td = data + offset * sizeof(struct thread_data); |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 841 | ret = thread_main(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 842 | shmdt(data); |
Jens Axboe | 43d7680 | 2007-02-21 16:35:29 +0100 | [diff] [blame] | 843 | return (int) (unsigned long) ret; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 844 | } |
| 845 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 846 | /* |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 847 | * Run over the job map and reap the threads that have exited, if any. |
| 848 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 849 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
| 850 | { |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 851 | struct thread_data *td; |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 852 | int i, cputhreads, pending, status, ret; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 853 | |
| 854 | /* |
| 855 | * reap exited threads (TD_EXITED -> TD_REAPED) |
| 856 | */ |
Jens Axboe | 4d2413c | 2006-11-23 11:58:59 +0100 | [diff] [blame] | 857 | pending = cputhreads = 0; |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 858 | for_each_td(td, i) { |
Jens Axboe | 3707f45 | 2007-02-22 12:26:57 +0100 | [diff] [blame] | 859 | int flags = 0; |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 860 | |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 861 | /* |
| 862 | * ->io_ops is NULL for a thread that has closed its |
| 863 | * io engine |
| 864 | */ |
| 865 | if (td->io_ops && td->io_ops->flags & FIO_CPUIO) |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 866 | cputhreads++; |
| 867 | |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 868 | if (!td->pid || td->runstate == TD_REAPED) |
| 869 | continue; |
Jens Axboe | 3707f45 | 2007-02-22 12:26:57 +0100 | [diff] [blame] | 870 | if (td->use_thread) { |
| 871 | if (td->runstate == TD_EXITED) { |
| 872 | td_set_runstate(td, TD_REAPED); |
| 873 | goto reaped; |
| 874 | } |
| 875 | continue; |
| 876 | } |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 877 | |
| 878 | flags = WNOHANG; |
| 879 | if (td->runstate == TD_EXITED) |
| 880 | flags = 0; |
| 881 | |
| 882 | /* |
| 883 | * check if someone quit or got killed in an unusual way |
| 884 | */ |
| 885 | ret = waitpid(td->pid, &status, flags); |
Jens Axboe | 3707f45 | 2007-02-22 12:26:57 +0100 | [diff] [blame] | 886 | if (ret < 0) { |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 887 | if (errno == ECHILD) { |
| 888 | log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate); |
| 889 | td_set_runstate(td, TD_REAPED); |
| 890 | goto reaped; |
| 891 | } |
| 892 | perror("waitpid"); |
| 893 | } else if (ret == td->pid) { |
| 894 | if (WIFSIGNALED(status)) { |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 895 | int sig = WTERMSIG(status); |
| 896 | |
Jens Axboe | d924494 | 2007-03-05 12:32:32 +0100 | [diff] [blame^] | 897 | if (sig != SIGQUIT) |
| 898 | log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 899 | td_set_runstate(td, TD_REAPED); |
| 900 | goto reaped; |
| 901 | } |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 902 | if (WIFEXITED(status)) { |
| 903 | if (WEXITSTATUS(status) && !td->error) |
| 904 | td->error = WEXITSTATUS(status); |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 905 | |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 906 | td_set_runstate(td, TD_REAPED); |
| 907 | goto reaped; |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 908 | } |
| 909 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 910 | |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 911 | /* |
| 912 | * thread is not dead, continue |
| 913 | */ |
| 914 | continue; |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 915 | reaped: |
Jens Axboe | 3707f45 | 2007-02-22 12:26:57 +0100 | [diff] [blame] | 916 | if (td->use_thread) { |
| 917 | long ret; |
| 918 | |
| 919 | if (pthread_join(td->thread, (void *) &ret)) |
| 920 | perror("pthread_join"); |
| 921 | } |
| 922 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 923 | (*nr_running)--; |
| 924 | (*m_rate) -= td->ratemin; |
| 925 | (*t_rate) -= td->rate; |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 926 | |
| 927 | if (td->error) |
| 928 | exit_value++; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 929 | } |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 930 | |
Jens Axboe | 4d2413c | 2006-11-23 11:58:59 +0100 | [diff] [blame] | 931 | if (*nr_running == cputhreads && !pending) |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 932 | terminate_threads(TERMINATE_ALL, 0); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 933 | } |
| 934 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 935 | /* |
| 936 | * Main function for kicking off and reaping jobs, as needed. |
| 937 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 938 | static void run_threads(void) |
| 939 | { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 940 | struct thread_data *td; |
| 941 | unsigned long spent; |
| 942 | int i, todo, nr_running, m_rate, t_rate, nr_started; |
Jens Axboe | fcb6ade | 2006-05-31 12:14:35 +0200 | [diff] [blame] | 943 | |
Jens Axboe | 2f9ade3 | 2006-10-20 11:25:52 +0200 | [diff] [blame] | 944 | if (fio_pin_memory()) |
| 945 | return; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 946 | |
Jens Axboe | c6ae0a5 | 2006-06-12 11:04:44 +0200 | [diff] [blame] | 947 | if (!terse_output) { |
| 948 | printf("Starting %d thread%s\n", thread_number, thread_number > 1 ? "s" : ""); |
| 949 | fflush(stdout); |
| 950 | } |
Jens Axboe | c04f7ec | 2006-05-31 10:13:16 +0200 | [diff] [blame] | 951 | |
Jens Axboe | 4efa970 | 2006-05-31 11:56:49 +0200 | [diff] [blame] | 952 | signal(SIGINT, sig_handler); |
| 953 | signal(SIGALRM, sig_handler); |
| 954 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 955 | todo = thread_number; |
| 956 | nr_running = 0; |
| 957 | nr_started = 0; |
| 958 | m_rate = t_rate = 0; |
| 959 | |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 960 | for_each_td(td, i) { |
Jens Axboe | 263e529 | 2006-10-18 15:37:01 +0200 | [diff] [blame] | 961 | print_status_init(td->thread_number - 1); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 962 | |
Jens Axboe | 380cf26 | 2007-01-11 14:01:27 +0100 | [diff] [blame] | 963 | if (!td->create_serialize) { |
| 964 | init_disk_util(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 965 | continue; |
Jens Axboe | 380cf26 | 2007-01-11 14:01:27 +0100 | [diff] [blame] | 966 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 967 | |
| 968 | /* |
| 969 | * do file setup here so it happens sequentially, |
| 970 | * we don't want X number of threads getting their |
| 971 | * client data interspersed on disk |
| 972 | */ |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 973 | if (setup_files(td)) { |
Jens Axboe | 5bf13a5 | 2007-02-17 01:51:47 +0100 | [diff] [blame] | 974 | exit_value++; |
| 975 | if (td->error) |
| 976 | 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] | 977 | td_set_runstate(td, TD_REAPED); |
| 978 | todo--; |
| 979 | } |
Jens Axboe | 380cf26 | 2007-01-11 14:01:27 +0100 | [diff] [blame] | 980 | |
| 981 | init_disk_util(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 982 | } |
| 983 | |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 984 | set_genesis_time(); |
| 985 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 986 | while (todo) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 987 | struct thread_data *map[MAX_JOBS]; |
| 988 | struct timeval this_start; |
| 989 | int this_jobs = 0, left; |
| 990 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 991 | /* |
| 992 | * create threads (TD_NOT_CREATED -> TD_CREATED) |
| 993 | */ |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 994 | for_each_td(td, i) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 995 | if (td->runstate != TD_NOT_CREATED) |
| 996 | continue; |
| 997 | |
| 998 | /* |
| 999 | * never got a chance to start, killed by other |
| 1000 | * thread for some reason |
| 1001 | */ |
| 1002 | if (td->terminate) { |
| 1003 | todo--; |
| 1004 | continue; |
| 1005 | } |
| 1006 | |
| 1007 | if (td->start_delay) { |
Jens Axboe | 263e529 | 2006-10-18 15:37:01 +0200 | [diff] [blame] | 1008 | spent = mtime_since_genesis(); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1009 | |
| 1010 | if (td->start_delay * 1000 > spent) |
| 1011 | continue; |
| 1012 | } |
| 1013 | |
| 1014 | if (td->stonewall && (nr_started || nr_running)) |
| 1015 | break; |
| 1016 | |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1017 | /* |
| 1018 | * Set state to created. Thread will transition |
| 1019 | * to TD_INITIALIZED when it's done setting up. |
| 1020 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1021 | td_set_runstate(td, TD_CREATED); |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1022 | map[this_jobs++] = td; |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 1023 | fio_sem_init(&startup_sem, 1); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1024 | nr_started++; |
| 1025 | |
| 1026 | if (td->use_thread) { |
| 1027 | if (pthread_create(&td->thread, NULL, thread_main, td)) { |
| 1028 | perror("thread_create"); |
| 1029 | nr_started--; |
| 1030 | } |
| 1031 | } else { |
| 1032 | if (fork()) |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 1033 | fio_sem_down(&startup_sem); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1034 | else { |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 1035 | int ret = fork_main(shm_id, i); |
| 1036 | |
| 1037 | exit(ret); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1038 | } |
| 1039 | } |
| 1040 | } |
| 1041 | |
| 1042 | /* |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1043 | * Wait for the started threads to transition to |
| 1044 | * TD_INITIALIZED. |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1045 | */ |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 1046 | fio_gettime(&this_start, NULL); |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1047 | left = this_jobs; |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 1048 | while (left && !fio_abort) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1049 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
| 1050 | break; |
| 1051 | |
| 1052 | usleep(100000); |
| 1053 | |
| 1054 | for (i = 0; i < this_jobs; i++) { |
| 1055 | td = map[i]; |
| 1056 | if (!td) |
| 1057 | continue; |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 1058 | if (td->runstate == TD_INITIALIZED) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1059 | map[i] = NULL; |
| 1060 | left--; |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 1061 | } else if (td->runstate >= TD_EXITED) { |
| 1062 | map[i] = NULL; |
| 1063 | left--; |
| 1064 | todo--; |
| 1065 | nr_running++; /* work-around... */ |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1066 | } |
| 1067 | } |
| 1068 | } |
| 1069 | |
| 1070 | if (left) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 1071 | log_err("fio: %d jobs failed to start\n", left); |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1072 | for (i = 0; i < this_jobs; i++) { |
| 1073 | td = map[i]; |
| 1074 | if (!td) |
| 1075 | continue; |
| 1076 | kill(td->pid, SIGTERM); |
| 1077 | } |
| 1078 | break; |
| 1079 | } |
| 1080 | |
| 1081 | /* |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 1082 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1083 | */ |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 1084 | for_each_td(td, i) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1085 | if (td->runstate != TD_INITIALIZED) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1086 | continue; |
| 1087 | |
| 1088 | td_set_runstate(td, TD_RUNNING); |
| 1089 | nr_running++; |
| 1090 | nr_started--; |
| 1091 | m_rate += td->ratemin; |
| 1092 | t_rate += td->rate; |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1093 | todo--; |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 1094 | fio_sem_up(&td->mutex); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1095 | } |
| 1096 | |
| 1097 | reap_threads(&nr_running, &t_rate, &m_rate); |
| 1098 | |
| 1099 | if (todo) |
| 1100 | usleep(100000); |
| 1101 | } |
| 1102 | |
| 1103 | while (nr_running) { |
| 1104 | reap_threads(&nr_running, &t_rate, &m_rate); |
| 1105 | usleep(10000); |
| 1106 | } |
| 1107 | |
| 1108 | update_io_ticks(); |
Jens Axboe | 2f9ade3 | 2006-10-20 11:25:52 +0200 | [diff] [blame] | 1109 | fio_unpin_memory(); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1110 | } |
| 1111 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1112 | int main(int argc, char *argv[]) |
| 1113 | { |
Jens Axboe | 29d610e | 2007-02-06 13:25:33 +0100 | [diff] [blame] | 1114 | long ps; |
| 1115 | |
Jens Axboe | dbe1125 | 2007-02-11 00:19:51 +0100 | [diff] [blame] | 1116 | /* |
| 1117 | * We need locale for number printing, if it isn't set then just |
| 1118 | * go with the US format. |
| 1119 | */ |
| 1120 | if (!getenv("LC_NUMERIC")) |
| 1121 | setlocale(LC_NUMERIC, "en_US"); |
| 1122 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1123 | if (parse_options(argc, argv)) |
| 1124 | return 1; |
| 1125 | |
| 1126 | if (!thread_number) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 1127 | log_err("Nothing to do\n"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1128 | return 1; |
| 1129 | } |
| 1130 | |
Jens Axboe | 29d610e | 2007-02-06 13:25:33 +0100 | [diff] [blame] | 1131 | ps = sysconf(_SC_PAGESIZE); |
| 1132 | if (ps < 0) { |
| 1133 | log_err("Failed to get page size\n"); |
| 1134 | return 1; |
| 1135 | } |
| 1136 | |
| 1137 | page_mask = ps - 1; |
| 1138 | |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 1139 | if (write_bw_log) { |
| 1140 | setup_log(&agg_io_log[DDIR_READ]); |
| 1141 | setup_log(&agg_io_log[DDIR_WRITE]); |
| 1142 | } |
| 1143 | |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 1144 | set_genesis_time(); |
| 1145 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1146 | disk_util_timer_arm(); |
| 1147 | |
| 1148 | run_threads(); |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 1149 | |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 1150 | if (!fio_abort) { |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 1151 | show_run_stats(); |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 1152 | if (write_bw_log) { |
| 1153 | __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); |
| 1154 | __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); |
| 1155 | } |
| 1156 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1157 | |
Jens Axboe | 437c9b7 | 2007-02-13 18:20:37 +0100 | [diff] [blame] | 1158 | return exit_value; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1159 | } |