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 | |
Jens Axboe | 390c40e | 2007-03-05 12:35:29 +0100 | [diff] [blame] | 63 | static void terminate_threads(int group_id) |
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; |
| 73 | } |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | static void sig_handler(int sig) |
| 78 | { |
| 79 | switch (sig) { |
| 80 | case SIGALRM: |
| 81 | update_io_ticks(); |
| 82 | disk_util_timer_arm(); |
| 83 | print_thread_status(); |
| 84 | break; |
| 85 | default: |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 86 | printf("\nfio: terminating on signal %d\n", sig); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 87 | fflush(stdout); |
Jens Axboe | 390c40e | 2007-03-05 12:35:29 +0100 | [diff] [blame] | 88 | terminate_threads(TERMINATE_ALL); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 89 | break; |
| 90 | } |
| 91 | } |
| 92 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 93 | /* |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 94 | * Check if we are above the minimum rate given. |
| 95 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 96 | static int check_min_rate(struct thread_data *td, struct timeval *now) |
| 97 | { |
Jens Axboe | 0904200 | 2007-02-23 10:56:22 +0100 | [diff] [blame] | 98 | unsigned long long bytes = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 99 | unsigned long spent; |
| 100 | unsigned long rate; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 101 | |
| 102 | /* |
Jens Axboe | 780bf1a | 2007-02-28 11:13:49 +0100 | [diff] [blame] | 103 | * No minimum rate set, always ok |
| 104 | */ |
| 105 | if (!td->ratemin) |
| 106 | return 0; |
| 107 | |
| 108 | /* |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 109 | * allow a 2 second settle period in the beginning |
| 110 | */ |
| 111 | if (mtime_since(&td->start, now) < 2000) |
| 112 | return 0; |
| 113 | |
Jens Axboe | 0904200 | 2007-02-23 10:56:22 +0100 | [diff] [blame] | 114 | if (td_read(td)) |
| 115 | bytes += td->this_io_bytes[DDIR_READ]; |
| 116 | if (td_write(td)) |
| 117 | bytes += td->this_io_bytes[DDIR_WRITE]; |
| 118 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 119 | /* |
| 120 | * if rate blocks is set, sample is running |
| 121 | */ |
| 122 | if (td->rate_bytes) { |
| 123 | spent = mtime_since(&td->lastrate, now); |
| 124 | if (spent < td->ratecycle) |
| 125 | return 0; |
| 126 | |
Jens Axboe | 413dd45 | 2007-02-23 09:26:09 +0100 | [diff] [blame] | 127 | if (bytes < td->rate_bytes) { |
| 128 | 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] | 129 | return 1; |
Jens Axboe | 413dd45 | 2007-02-23 09:26:09 +0100 | [diff] [blame] | 130 | } else { |
| 131 | rate = (bytes - td->rate_bytes) / spent; |
| 132 | if (rate < td->ratemin || bytes < td->rate_bytes) { |
| 133 | fprintf(f_out, "%s: min rate %u not met, got %luKiB/sec\n", td->name, td->ratemin, rate); |
| 134 | return 1; |
| 135 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 136 | } |
| 137 | } |
| 138 | |
Jens Axboe | 0904200 | 2007-02-23 10:56:22 +0100 | [diff] [blame] | 139 | td->rate_bytes = bytes; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 140 | memcpy(&td->lastrate, now, sizeof(*now)); |
| 141 | return 0; |
| 142 | } |
| 143 | |
| 144 | static inline int runtime_exceeded(struct thread_data *td, struct timeval *t) |
| 145 | { |
| 146 | if (!td->timeout) |
| 147 | return 0; |
| 148 | if (mtime_since(&td->epoch, t) >= td->timeout * 1000) |
| 149 | return 1; |
| 150 | |
| 151 | return 0; |
| 152 | } |
| 153 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 154 | /* |
| 155 | * When job exits, we can cancel the in-flight IO if we are using async |
| 156 | * io. Attempt to do so. |
| 157 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 158 | static void cleanup_pending_aio(struct thread_data *td) |
| 159 | { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 160 | struct list_head *entry, *n; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 161 | struct io_u *io_u; |
| 162 | int r; |
| 163 | |
| 164 | /* |
| 165 | * get immediately available events, if any |
| 166 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 167 | r = io_u_queued_complete(td, 0); |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 168 | if (r < 0) |
| 169 | return; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 170 | |
| 171 | /* |
| 172 | * now cancel remaining active events |
| 173 | */ |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 174 | if (td->io_ops->cancel) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 175 | list_for_each_safe(entry, n, &td->io_u_busylist) { |
| 176 | io_u = list_entry(entry, struct io_u, list); |
| 177 | |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 178 | /* |
| 179 | * if the io_u isn't in flight, then that generally |
| 180 | * means someone leaked an io_u. complain but fix |
| 181 | * it up, so we don't stall here. |
| 182 | */ |
| 183 | if ((io_u->flags & IO_U_F_FLIGHT) == 0) { |
| 184 | log_err("fio: non-busy IO on busy list\n"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 185 | put_io_u(td, io_u); |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 186 | } else { |
| 187 | r = td->io_ops->cancel(td, io_u); |
| 188 | if (!r) |
| 189 | put_io_u(td, io_u); |
| 190 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 191 | } |
| 192 | } |
| 193 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 194 | if (td->cur_depth) |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 195 | r = io_u_queued_complete(td, td->cur_depth); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 196 | } |
| 197 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 198 | /* |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 199 | * Helper to handle the final sync of a file. Works just like the normal |
| 200 | * io path, just does everything sync. |
| 201 | */ |
| 202 | static int fio_io_sync(struct thread_data *td, struct fio_file *f) |
| 203 | { |
| 204 | struct io_u *io_u = __get_io_u(td); |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 205 | int ret; |
| 206 | |
| 207 | if (!io_u) |
| 208 | return 1; |
| 209 | |
| 210 | io_u->ddir = DDIR_SYNC; |
| 211 | io_u->file = f; |
| 212 | |
| 213 | if (td_io_prep(td, io_u)) { |
| 214 | put_io_u(td, io_u); |
| 215 | return 1; |
| 216 | } |
| 217 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 218 | requeue: |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 219 | ret = td_io_queue(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 220 | if (ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 221 | td_verror(td, io_u->error, "td_io_queue"); |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 222 | put_io_u(td, io_u); |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 223 | return 1; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 224 | } else if (ret == FIO_Q_QUEUED) { |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 225 | if (io_u_queued_complete(td, 1) < 0) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 226 | return 1; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 227 | } else if (ret == FIO_Q_COMPLETED) { |
| 228 | if (io_u->error) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 229 | td_verror(td, io_u->error, "td_io_queue"); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 230 | return 1; |
| 231 | } |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 232 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 233 | if (io_u_sync_complete(td, io_u) < 0) |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 234 | return 1; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 235 | } else if (ret == FIO_Q_BUSY) { |
| 236 | if (td_io_commit(td)) |
| 237 | return 1; |
| 238 | goto requeue; |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 239 | } |
| 240 | |
| 241 | return 0; |
| 242 | } |
| 243 | |
| 244 | /* |
Jens Axboe | 34403fb | 2007-03-02 21:43:25 +0100 | [diff] [blame] | 245 | * The main verify engine. Runs over the writes we previously submitted, |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 246 | * reads the blocks back in, and checks the crc/md5 of the data. |
| 247 | */ |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 248 | static void do_verify(struct thread_data *td) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 249 | { |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 250 | struct fio_file *f; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 251 | struct io_u *io_u; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 252 | int ret, i, min_events; |
Jens Axboe | e5b401d | 2006-10-18 16:03:40 +0200 | [diff] [blame] | 253 | |
| 254 | /* |
| 255 | * sync io first and invalidate cache, to make sure we really |
| 256 | * read from disk. |
| 257 | */ |
| 258 | for_each_file(td, f, i) { |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 259 | if (fio_io_sync(td, f)) |
| 260 | break; |
| 261 | if (file_invalidate_cache(td, f)) |
| 262 | break; |
Jens Axboe | e5b401d | 2006-10-18 16:03:40 +0200 | [diff] [blame] | 263 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 264 | |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 265 | if (td->error) |
| 266 | return; |
| 267 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 268 | td_set_runstate(td, TD_VERIFYING); |
| 269 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 270 | io_u = NULL; |
| 271 | while (!td->terminate) { |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 272 | int ret2; |
| 273 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 274 | io_u = __get_io_u(td); |
| 275 | if (!io_u) |
| 276 | break; |
| 277 | |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame] | 278 | if (runtime_exceeded(td, &io_u->start_time)) { |
| 279 | put_io_u(td, io_u); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 280 | break; |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame] | 281 | } |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 282 | |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame] | 283 | if (get_next_verify(td, io_u)) { |
| 284 | put_io_u(td, io_u); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 285 | break; |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame] | 286 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 287 | |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame] | 288 | if (td_io_prep(td, io_u)) { |
| 289 | put_io_u(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 290 | break; |
Jens Axboe | 069c291 | 2007-02-21 23:02:39 +0100 | [diff] [blame] | 291 | } |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 292 | |
| 293 | io_u->end_io = verify_io_u; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 294 | |
Jens Axboe | 1178680 | 2007-03-05 18:33:22 +0100 | [diff] [blame^] | 295 | ret = td_io_queue(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 296 | switch (ret) { |
| 297 | case FIO_Q_COMPLETED: |
| 298 | if (io_u->error) |
Jens Axboe | 22819ec | 2007-02-18 07:47:14 +0100 | [diff] [blame] | 299 | ret = -io_u->error; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 300 | else if (io_u->xfer_buflen != io_u->resid && io_u->resid) { |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 301 | int bytes = io_u->xfer_buflen - io_u->resid; |
| 302 | |
| 303 | io_u->xfer_buflen = io_u->resid; |
| 304 | io_u->xfer_buf += bytes; |
Jens Axboe | 1178680 | 2007-03-05 18:33:22 +0100 | [diff] [blame^] | 305 | requeue_io_u(td, &io_u); |
| 306 | } else { |
| 307 | ret = io_u_sync_complete(td, io_u); |
| 308 | if (ret < 0) |
| 309 | break; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 310 | } |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 311 | continue; |
| 312 | case FIO_Q_QUEUED: |
| 313 | break; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 314 | case FIO_Q_BUSY: |
| 315 | requeue_io_u(td, &io_u); |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 316 | ret2 = td_io_commit(td); |
| 317 | if (ret2 < 0) |
| 318 | ret = ret2; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 319 | break; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 320 | default: |
| 321 | assert(ret < 0); |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 322 | td_verror(td, -ret, "td_io_queue"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 323 | break; |
| 324 | } |
| 325 | |
Jens Axboe | 9978463 | 2007-02-19 10:06:17 +0100 | [diff] [blame] | 326 | if (ret < 0 || td->error) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 327 | break; |
| 328 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 329 | /* |
| 330 | * if we can queue more, do so. but check if there are |
| 331 | * completed io_u's first. |
| 332 | */ |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 333 | min_events = 0; |
Jens Axboe | e916b39 | 2007-02-20 14:37:26 +0100 | [diff] [blame] | 334 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 335 | min_events = 1; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 336 | |
Jens Axboe | e916b39 | 2007-02-20 14:37:26 +0100 | [diff] [blame] | 337 | if (td->cur_depth > td->iodepth_low) |
| 338 | min_events = td->cur_depth - td->iodepth_low; |
| 339 | } |
| 340 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 341 | /* |
| 342 | * Reap required number of io units, if any, and do the |
| 343 | * verification on them through the callback handler |
| 344 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 345 | if (io_u_queued_complete(td, min_events) < 0) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 346 | break; |
| 347 | } |
| 348 | |
Jens Axboe | c01c039 | 2007-02-26 12:43:42 +0100 | [diff] [blame] | 349 | if (!td->error) { |
| 350 | min_events = td->cur_depth; |
| 351 | |
| 352 | if (min_events) |
| 353 | ret = io_u_queued_complete(td, min_events); |
| 354 | } else |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 355 | cleanup_pending_aio(td); |
| 356 | |
| 357 | td_set_runstate(td, TD_RUNNING); |
| 358 | } |
| 359 | |
Jens Axboe | 32cd46a | 2006-06-07 13:40:40 +0200 | [diff] [blame] | 360 | /* |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 361 | * Not really an io thread, all it does is burn CPU cycles in the specified |
| 362 | * manner. |
| 363 | */ |
| 364 | static void do_cpuio(struct thread_data *td) |
| 365 | { |
| 366 | struct timeval e; |
| 367 | int split = 100 / td->cpuload; |
| 368 | int i = 0; |
| 369 | |
| 370 | while (!td->terminate) { |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 371 | fio_gettime(&e, NULL); |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 372 | |
| 373 | if (runtime_exceeded(td, &e)) |
| 374 | break; |
| 375 | |
| 376 | if (!(i % split)) |
| 377 | __usec_sleep(10000); |
| 378 | else |
| 379 | usec_sleep(td, 10000); |
| 380 | |
| 381 | i++; |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | /* |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 386 | * 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] | 387 | * and reaps them, checking for rate and errors along the way. |
| 388 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 389 | static void do_io(struct thread_data *td) |
| 390 | { |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 391 | struct timeval s; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 392 | unsigned long usec; |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 393 | int i, ret = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 394 | |
Jens Axboe | 5853e5a | 2006-06-08 14:41:05 +0200 | [diff] [blame] | 395 | td_set_runstate(td, TD_RUNNING); |
| 396 | |
Jens Axboe | 3951414 | 2007-02-12 18:49:58 +0100 | [diff] [blame] | 397 | 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] | 398 | struct timeval comp_time; |
| 399 | long bytes_done = 0; |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 400 | int min_evts = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 401 | struct io_u *io_u; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 402 | int ret2; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 403 | |
| 404 | if (td->terminate) |
| 405 | break; |
| 406 | |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 407 | io_u = get_io_u(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 408 | if (!io_u) |
| 409 | break; |
| 410 | |
| 411 | memcpy(&s, &io_u->start_time, sizeof(s)); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 412 | |
| 413 | if (runtime_exceeded(td, &s)) { |
| 414 | put_io_u(td, io_u); |
| 415 | break; |
| 416 | } |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 417 | |
Jens Axboe | 1178680 | 2007-03-05 18:33:22 +0100 | [diff] [blame^] | 418 | ret = td_io_queue(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 419 | switch (ret) { |
| 420 | case FIO_Q_COMPLETED: |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 421 | if (io_u->error) |
| 422 | ret = -io_u->error; |
| 423 | else if (io_u->xfer_buflen != io_u->resid && io_u->resid) { |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 424 | int bytes = io_u->xfer_buflen - io_u->resid; |
| 425 | |
| 426 | io_u->xfer_buflen = io_u->resid; |
| 427 | io_u->xfer_buf += bytes; |
Jens Axboe | 1178680 | 2007-03-05 18:33:22 +0100 | [diff] [blame^] | 428 | requeue_io_u(td, &io_u); |
| 429 | } else { |
| 430 | fio_gettime(&comp_time, NULL); |
| 431 | bytes_done = io_u_sync_complete(td, io_u); |
| 432 | if (bytes_done < 0) |
| 433 | ret = bytes_done; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 434 | } |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 435 | break; |
| 436 | case FIO_Q_QUEUED: |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 437 | /* |
| 438 | * if the engine doesn't have a commit hook, |
| 439 | * the io_u is really queued. if it does have such |
| 440 | * a hook, it has to call io_u_queued() itself. |
| 441 | */ |
| 442 | if (td->io_ops->commit == NULL) |
| 443 | io_u_queued(td, io_u); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 444 | break; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 445 | case FIO_Q_BUSY: |
| 446 | requeue_io_u(td, &io_u); |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 447 | ret2 = td_io_commit(td); |
| 448 | if (ret2 < 0) |
| 449 | ret = ret2; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 450 | break; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 451 | default: |
| 452 | assert(ret < 0); |
| 453 | put_io_u(td, io_u); |
| 454 | break; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 455 | } |
| 456 | |
Jens Axboe | 9978463 | 2007-02-19 10:06:17 +0100 | [diff] [blame] | 457 | if (ret < 0 || td->error) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 458 | break; |
| 459 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 460 | /* |
| 461 | * See if we need to complete some commands |
| 462 | */ |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 463 | if (ret == FIO_Q_QUEUED || ret == FIO_Q_BUSY) { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 464 | min_evts = 0; |
Jens Axboe | e916b39 | 2007-02-20 14:37:26 +0100 | [diff] [blame] | 465 | if (queue_full(td) || ret == FIO_Q_BUSY) { |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 466 | min_evts = 1; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 467 | |
Jens Axboe | e916b39 | 2007-02-20 14:37:26 +0100 | [diff] [blame] | 468 | if (td->cur_depth > td->iodepth_low) |
| 469 | min_evts = td->cur_depth - td->iodepth_low; |
| 470 | } |
| 471 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 472 | fio_gettime(&comp_time, NULL); |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 473 | bytes_done = io_u_queued_complete(td, min_evts); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 474 | if (bytes_done < 0) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 475 | break; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 476 | } |
| 477 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 478 | if (!bytes_done) |
| 479 | continue; |
| 480 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 481 | /* |
| 482 | * the rate is batched for now, it should work for batches |
| 483 | * of completions except the very first one which may look |
| 484 | * a little bursty |
| 485 | */ |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 486 | usec = utime_since(&s, &comp_time); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 487 | |
Jens Axboe | 413dd45 | 2007-02-23 09:26:09 +0100 | [diff] [blame] | 488 | rate_throttle(td, usec, bytes_done); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 489 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 490 | if (check_min_rate(td, &comp_time)) { |
Jens Axboe | 98aa62d | 2006-11-07 14:16:19 +0100 | [diff] [blame] | 491 | if (exitall_on_terminate) |
Jens Axboe | 390c40e | 2007-03-05 12:35:29 +0100 | [diff] [blame] | 492 | terminate_threads(td->groupid); |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 493 | td_verror(td, ENODATA, "check_min_rate"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 494 | break; |
| 495 | } |
| 496 | |
Jens Axboe | 9c1f743 | 2007-01-03 20:43:19 +0100 | [diff] [blame] | 497 | if (td->thinktime) { |
| 498 | unsigned long long b; |
| 499 | |
| 500 | b = td->io_blocks[0] + td->io_blocks[1]; |
Jens Axboe | 48097d5 | 2007-02-17 06:30:44 +0100 | [diff] [blame] | 501 | if (!(b % td->thinktime_blocks)) { |
| 502 | int left; |
| 503 | |
| 504 | if (td->thinktime_spin) |
| 505 | __usec_sleep(td->thinktime_spin); |
| 506 | |
| 507 | left = td->thinktime - td->thinktime_spin; |
| 508 | if (left) |
| 509 | usec_sleep(td, left); |
| 510 | } |
Jens Axboe | 9c1f743 | 2007-01-03 20:43:19 +0100 | [diff] [blame] | 511 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 512 | } |
| 513 | |
Jens Axboe | 4d2413c | 2006-11-23 11:58:59 +0100 | [diff] [blame] | 514 | if (!td->error) { |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 515 | struct fio_file *f; |
| 516 | |
Jens Axboe | c01c039 | 2007-02-26 12:43:42 +0100 | [diff] [blame] | 517 | i = td->cur_depth; |
| 518 | if (i) |
| 519 | ret = io_u_queued_complete(td, i); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 520 | |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 521 | if (should_fsync(td) && td->end_fsync) { |
| 522 | td_set_runstate(td, TD_FSYNCING); |
| 523 | for_each_file(td, f, i) |
Jens Axboe | 858a3d4 | 2006-10-24 14:54:44 +0200 | [diff] [blame] | 524 | fio_io_sync(td, f); |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 525 | } |
Jens Axboe | c01c039 | 2007-02-26 12:43:42 +0100 | [diff] [blame] | 526 | } else |
| 527 | cleanup_pending_aio(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 528 | } |
| 529 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 530 | static void cleanup_io_u(struct thread_data *td) |
| 531 | { |
| 532 | struct list_head *entry, *n; |
| 533 | struct io_u *io_u; |
| 534 | |
| 535 | list_for_each_safe(entry, n, &td->io_u_freelist) { |
| 536 | io_u = list_entry(entry, struct io_u, list); |
| 537 | |
| 538 | list_del(&io_u->list); |
| 539 | free(io_u); |
| 540 | } |
| 541 | |
Jens Axboe | 2f9ade3 | 2006-10-20 11:25:52 +0200 | [diff] [blame] | 542 | free_io_mem(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 543 | } |
| 544 | |
Jens Axboe | 6b9cea2 | 2006-10-30 17:00:24 +0100 | [diff] [blame] | 545 | /* |
| 546 | * "randomly" fill the buffer contents |
| 547 | */ |
Jens Axboe | 66eeb29 | 2006-11-01 08:35:44 +0100 | [diff] [blame] | 548 | 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] | 549 | { |
Jens Axboe | 66eeb29 | 2006-11-01 08:35:44 +0100 | [diff] [blame] | 550 | int *ptr = io_u->buf; |
Jens Axboe | 6b9cea2 | 2006-10-30 17:00:24 +0100 | [diff] [blame] | 551 | |
| 552 | while ((void *) ptr - io_u->buf < max_bs) { |
| 553 | *ptr = rand() * 0x9e370001; |
| 554 | ptr++; |
| 555 | } |
| 556 | } |
| 557 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 558 | static int init_io_u(struct thread_data *td) |
| 559 | { |
| 560 | struct io_u *io_u; |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 561 | unsigned int max_bs; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 562 | int i, max_units; |
| 563 | char *p; |
| 564 | |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 565 | if (td->io_ops->flags & FIO_CPUIO) |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 566 | return 0; |
| 567 | |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 568 | if (td->io_ops->flags & FIO_SYNCIO) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 569 | max_units = 1; |
| 570 | else |
| 571 | max_units = td->iodepth; |
| 572 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 573 | 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] | 574 | td->orig_buffer_size = max_bs * max_units; |
| 575 | |
Jens Axboe | d0bdaf4 | 2006-12-20 14:40:44 +0100 | [diff] [blame] | 576 | if (td->mem_type == MEM_SHMHUGE || td->mem_type == MEM_MMAPHUGE) |
Jens Axboe | 56bb17f | 2006-12-20 20:27:36 +0100 | [diff] [blame] | 577 | 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] | 578 | else |
Jens Axboe | 29d610e | 2007-02-06 13:25:33 +0100 | [diff] [blame] | 579 | td->orig_buffer_size += page_mask; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 580 | |
Jens Axboe | 2f9ade3 | 2006-10-20 11:25:52 +0200 | [diff] [blame] | 581 | if (allocate_io_mem(td)) |
| 582 | return 1; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 583 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 584 | p = ALIGN(td->orig_buffer); |
| 585 | for (i = 0; i < max_units; i++) { |
| 586 | io_u = malloc(sizeof(*io_u)); |
| 587 | memset(io_u, 0, sizeof(*io_u)); |
| 588 | INIT_LIST_HEAD(&io_u->list); |
| 589 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 590 | io_u->buf = p + max_bs * i; |
Jens Axboe | 6b9cea2 | 2006-10-30 17:00:24 +0100 | [diff] [blame] | 591 | if (td_write(td) || td_rw(td)) |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 592 | fill_rand_buf(io_u, max_bs); |
Jens Axboe | 6b9cea2 | 2006-10-30 17:00:24 +0100 | [diff] [blame] | 593 | |
Jens Axboe | b1ff340 | 2006-02-17 11:35:58 +0100 | [diff] [blame] | 594 | io_u->index = i; |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 595 | io_u->flags = IO_U_F_FREE; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 596 | list_add(&io_u->list, &td->io_u_freelist); |
| 597 | } |
| 598 | |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 599 | io_u_init_timeout(); |
| 600 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 601 | return 0; |
| 602 | } |
| 603 | |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 604 | static int switch_ioscheduler(struct thread_data *td) |
| 605 | { |
| 606 | char tmp[256], tmp2[128]; |
| 607 | FILE *f; |
| 608 | int ret; |
| 609 | |
Jens Axboe | f48b467 | 2006-10-27 11:30:07 +0200 | [diff] [blame] | 610 | if (td->io_ops->flags & FIO_CPUIO) |
| 611 | return 0; |
| 612 | |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 613 | sprintf(tmp, "%s/queue/scheduler", td->sysfs_root); |
| 614 | |
| 615 | f = fopen(tmp, "r+"); |
| 616 | if (!f) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 617 | td_verror(td, errno, "fopen"); |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 618 | return 1; |
| 619 | } |
| 620 | |
| 621 | /* |
| 622 | * Set io scheduler. |
| 623 | */ |
| 624 | ret = fwrite(td->ioscheduler, strlen(td->ioscheduler), 1, f); |
| 625 | if (ferror(f) || ret != 1) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 626 | td_verror(td, errno, "fwrite"); |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 627 | fclose(f); |
| 628 | return 1; |
| 629 | } |
| 630 | |
| 631 | rewind(f); |
| 632 | |
| 633 | /* |
| 634 | * Read back and check that the selected scheduler is now the default. |
| 635 | */ |
| 636 | ret = fread(tmp, 1, sizeof(tmp), f); |
| 637 | if (ferror(f) || ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 638 | td_verror(td, errno, "fread"); |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 639 | fclose(f); |
| 640 | return 1; |
| 641 | } |
| 642 | |
| 643 | sprintf(tmp2, "[%s]", td->ioscheduler); |
| 644 | if (!strstr(tmp, tmp2)) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 645 | log_err("fio: io scheduler %s not found\n", td->ioscheduler); |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 646 | td_verror(td, EINVAL, "iosched_switch"); |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 647 | fclose(f); |
| 648 | return 1; |
| 649 | } |
| 650 | |
| 651 | fclose(f); |
| 652 | return 0; |
| 653 | } |
| 654 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 655 | static void clear_io_state(struct thread_data *td) |
| 656 | { |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 657 | struct fio_file *f; |
| 658 | int i; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 659 | |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 660 | 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] | 661 | td->this_io_bytes[0] = td->this_io_bytes[1] = 0; |
Jens Axboe | 20dc95c | 2005-12-09 10:29:35 +0100 | [diff] [blame] | 662 | td->zone_bytes = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 663 | |
Jens Axboe | c1324df | 2007-02-19 19:06:41 +0100 | [diff] [blame] | 664 | td->last_was_sync = 0; |
| 665 | |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 666 | for_each_file(td, f, i) { |
Jens Axboe | c1324df | 2007-02-19 19:06:41 +0100 | [diff] [blame] | 667 | f->last_completed_pos = 0; |
| 668 | |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 669 | f->last_pos = 0; |
| 670 | if (td->io_ops->flags & FIO_SYNCIO) |
| 671 | lseek(f->fd, SEEK_SET, 0); |
| 672 | |
| 673 | if (f->file_map) |
| 674 | memset(f->file_map, 0, f->num_maps * sizeof(long)); |
| 675 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 676 | } |
| 677 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 678 | /* |
| 679 | * Entry point for the thread based jobs. The process based jobs end up |
| 680 | * here as well, after a little setup. |
| 681 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 682 | static void *thread_main(void *data) |
| 683 | { |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 684 | unsigned long long runtime[2]; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 685 | struct thread_data *td = data; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 686 | |
| 687 | if (!td->use_thread) |
| 688 | setsid(); |
| 689 | |
| 690 | td->pid = getpid(); |
| 691 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 692 | INIT_LIST_HEAD(&td->io_u_freelist); |
| 693 | INIT_LIST_HEAD(&td->io_u_busylist); |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 694 | INIT_LIST_HEAD(&td->io_u_requeues); |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 695 | INIT_LIST_HEAD(&td->io_hist_list); |
| 696 | INIT_LIST_HEAD(&td->io_log_list); |
| 697 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 698 | if (init_io_u(td)) |
| 699 | goto err; |
| 700 | |
| 701 | if (fio_setaffinity(td) == -1) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 702 | td_verror(td, errno, "cpu_set_affinity"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 703 | goto err; |
| 704 | } |
| 705 | |
Jens Axboe | aea47d4 | 2006-05-26 19:27:29 +0200 | [diff] [blame] | 706 | if (init_iolog(td)) |
| 707 | goto err; |
| 708 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 709 | if (td->ioprio) { |
| 710 | if (ioprio_set(IOPRIO_WHO_PROCESS, 0, td->ioprio) == -1) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 711 | td_verror(td, errno, "ioprio_set"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 712 | goto err; |
| 713 | } |
| 714 | } |
| 715 | |
Jens Axboe | 1056eaa | 2006-07-13 10:33:45 -0700 | [diff] [blame] | 716 | if (nice(td->nice) == -1) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 717 | td_verror(td, errno, "nice"); |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 718 | goto err; |
| 719 | } |
| 720 | |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 721 | if (init_random_state(td)) |
| 722 | goto err; |
| 723 | |
Jens Axboe | 56f9498 | 2006-10-24 09:33:42 +0200 | [diff] [blame] | 724 | if (td->ioscheduler && switch_ioscheduler(td)) |
| 725 | goto err; |
Jens Axboe | da86774 | 2006-06-06 10:39:10 -0700 | [diff] [blame] | 726 | |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 727 | td_set_runstate(td, TD_INITIALIZED); |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 728 | fio_sem_up(&startup_sem); |
| 729 | fio_sem_down(&td->mutex); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 730 | |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 731 | if (!td->create_serialize && setup_files(td)) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 732 | goto err; |
Jens Axboe | 21972cd | 2006-11-23 12:39:16 +0100 | [diff] [blame] | 733 | if (open_files(td)) |
| 734 | goto err; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 735 | |
Jens Axboe | 7d6c528 | 2007-02-05 10:52:10 +0100 | [diff] [blame] | 736 | /* |
| 737 | * Do this late, as some IO engines would like to have the |
| 738 | * files setup prior to initializing structures. |
| 739 | */ |
| 740 | if (td_io_init(td)) |
| 741 | goto err; |
| 742 | |
Jens Axboe | 69cfd7e | 2007-02-07 13:58:53 +0100 | [diff] [blame] | 743 | if (td->exec_prerun) { |
| 744 | if (system(td->exec_prerun) < 0) |
| 745 | goto err; |
| 746 | } |
Jens Axboe | 4e0ba8a | 2006-06-06 09:36:28 +0200 | [diff] [blame] | 747 | |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 748 | fio_gettime(&td->epoch, NULL); |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 749 | memcpy(&td->timeout_end, &td->epoch, sizeof(td->epoch)); |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 750 | getrusage(RUSAGE_SELF, &td->ts.ru_start); |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 751 | |
| 752 | runtime[0] = runtime[1] = 0; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 753 | while (td->loops--) { |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 754 | fio_gettime(&td->start, NULL); |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 755 | memcpy(&td->ts.stat_sample_time, &td->start, sizeof(td->start)); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 756 | |
| 757 | if (td->ratemin) |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 758 | memcpy(&td->lastrate, &td->ts.stat_sample_time, sizeof(td->lastrate)); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 759 | |
| 760 | clear_io_state(td); |
| 761 | prune_io_piece_log(td); |
| 762 | |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 763 | if (td->io_ops->flags & FIO_CPUIO) |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 764 | do_cpuio(td); |
| 765 | else |
| 766 | do_io(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 767 | |
Jens Axboe | 413dd45 | 2007-02-23 09:26:09 +0100 | [diff] [blame] | 768 | if (td_read(td) && td->io_bytes[DDIR_READ]) |
| 769 | runtime[DDIR_READ] += utime_since_now(&td->start); |
| 770 | if (td_write(td) && td->io_bytes[DDIR_WRITE]) |
| 771 | runtime[DDIR_WRITE] += utime_since_now(&td->start); |
| 772 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 773 | if (td->error || td->terminate) |
| 774 | break; |
| 775 | |
| 776 | if (td->verify == VERIFY_NONE) |
| 777 | continue; |
| 778 | |
| 779 | clear_io_state(td); |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 780 | fio_gettime(&td->start, NULL); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 781 | |
| 782 | do_verify(td); |
| 783 | |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 784 | runtime[DDIR_READ] += utime_since_now(&td->start); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 785 | |
| 786 | if (td->error || td->terminate) |
| 787 | break; |
| 788 | } |
| 789 | |
Jens Axboe | 36dff96 | 2006-11-24 13:29:20 +0100 | [diff] [blame] | 790 | update_rusage_stat(td); |
Jens Axboe | 6900899 | 2006-11-24 13:12:56 +0100 | [diff] [blame] | 791 | fio_gettime(&td->end_time, NULL); |
| 792 | td->runtime[0] = runtime[0] / 1000; |
| 793 | td->runtime[1] = runtime[1] / 1000; |
| 794 | |
Jens Axboe | 079ad09 | 2007-02-20 13:58:20 +0100 | [diff] [blame] | 795 | if (td->ts.bw_log) |
| 796 | finish_log(td, td->ts.bw_log, "bw"); |
| 797 | if (td->ts.slat_log) |
| 798 | finish_log(td, td->ts.slat_log, "slat"); |
| 799 | if (td->ts.clat_log) |
| 800 | finish_log(td, td->ts.clat_log, "clat"); |
Jens Axboe | 076efc7 | 2006-10-27 11:24:25 +0200 | [diff] [blame] | 801 | if (td->write_iolog_file) |
Jens Axboe | 843a741 | 2006-06-01 21:14:21 -0700 | [diff] [blame] | 802 | write_iolog_close(td); |
Jens Axboe | 69cfd7e | 2007-02-07 13:58:53 +0100 | [diff] [blame] | 803 | if (td->exec_postrun) { |
| 804 | if (system(td->exec_postrun) < 0) |
| 805 | log_err("fio: postrun %s failed\n", td->exec_postrun); |
| 806 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 807 | |
| 808 | if (exitall_on_terminate) |
Jens Axboe | 390c40e | 2007-03-05 12:35:29 +0100 | [diff] [blame] | 809 | terminate_threads(td->groupid); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 810 | |
| 811 | err: |
Jens Axboe | 5bf13a5 | 2007-02-17 01:51:47 +0100 | [diff] [blame] | 812 | if (td->error) |
| 813 | 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] | 814 | close_files(td); |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 815 | close_ioengine(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 816 | cleanup_io_u(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 817 | td_set_runstate(td, TD_EXITED); |
Jens Axboe | 43d7680 | 2007-02-21 16:35:29 +0100 | [diff] [blame] | 818 | return (void *) (unsigned long) td->error; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 819 | } |
| 820 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 821 | /* |
| 822 | * We cannot pass the td data into a forked process, so attach the td and |
| 823 | * pass it to the thread worker. |
| 824 | */ |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 825 | static int fork_main(int shmid, int offset) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 826 | { |
| 827 | struct thread_data *td; |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 828 | void *data, *ret; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 829 | |
| 830 | data = shmat(shmid, NULL, 0); |
| 831 | if (data == (void *) -1) { |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 832 | int __err = errno; |
| 833 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 834 | perror("shmat"); |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 835 | return __err; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 836 | } |
| 837 | |
| 838 | td = data + offset * sizeof(struct thread_data); |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 839 | ret = thread_main(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 840 | shmdt(data); |
Jens Axboe | 43d7680 | 2007-02-21 16:35:29 +0100 | [diff] [blame] | 841 | return (int) (unsigned long) ret; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 842 | } |
| 843 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 844 | /* |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 845 | * Run over the job map and reap the threads that have exited, if any. |
| 846 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 847 | static void reap_threads(int *nr_running, int *t_rate, int *m_rate) |
| 848 | { |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 849 | struct thread_data *td; |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 850 | int i, cputhreads, pending, status, ret; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 851 | |
| 852 | /* |
| 853 | * reap exited threads (TD_EXITED -> TD_REAPED) |
| 854 | */ |
Jens Axboe | 4d2413c | 2006-11-23 11:58:59 +0100 | [diff] [blame] | 855 | pending = cputhreads = 0; |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 856 | for_each_td(td, i) { |
Jens Axboe | 3707f45 | 2007-02-22 12:26:57 +0100 | [diff] [blame] | 857 | int flags = 0; |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 858 | |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 859 | /* |
| 860 | * ->io_ops is NULL for a thread that has closed its |
| 861 | * io engine |
| 862 | */ |
| 863 | if (td->io_ops && td->io_ops->flags & FIO_CPUIO) |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 864 | cputhreads++; |
| 865 | |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 866 | if (!td->pid || td->runstate == TD_REAPED) |
| 867 | continue; |
Jens Axboe | 3707f45 | 2007-02-22 12:26:57 +0100 | [diff] [blame] | 868 | if (td->use_thread) { |
| 869 | if (td->runstate == TD_EXITED) { |
| 870 | td_set_runstate(td, TD_REAPED); |
| 871 | goto reaped; |
| 872 | } |
| 873 | continue; |
| 874 | } |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 875 | |
| 876 | flags = WNOHANG; |
| 877 | if (td->runstate == TD_EXITED) |
| 878 | flags = 0; |
| 879 | |
| 880 | /* |
| 881 | * check if someone quit or got killed in an unusual way |
| 882 | */ |
| 883 | ret = waitpid(td->pid, &status, flags); |
Jens Axboe | 3707f45 | 2007-02-22 12:26:57 +0100 | [diff] [blame] | 884 | if (ret < 0) { |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 885 | if (errno == ECHILD) { |
| 886 | log_err("fio: pid=%d disappeared %d\n", td->pid, td->runstate); |
| 887 | td_set_runstate(td, TD_REAPED); |
| 888 | goto reaped; |
| 889 | } |
| 890 | perror("waitpid"); |
| 891 | } else if (ret == td->pid) { |
| 892 | if (WIFSIGNALED(status)) { |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 893 | int sig = WTERMSIG(status); |
| 894 | |
Jens Axboe | d924494 | 2007-03-05 12:32:32 +0100 | [diff] [blame] | 895 | if (sig != SIGQUIT) |
| 896 | log_err("fio: pid=%d, got signal=%d\n", td->pid, sig); |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 897 | td_set_runstate(td, TD_REAPED); |
| 898 | goto reaped; |
| 899 | } |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 900 | if (WIFEXITED(status)) { |
| 901 | if (WEXITSTATUS(status) && !td->error) |
| 902 | td->error = WEXITSTATUS(status); |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 903 | |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 904 | td_set_runstate(td, TD_REAPED); |
| 905 | goto reaped; |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 906 | } |
| 907 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 908 | |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 909 | /* |
| 910 | * thread is not dead, continue |
| 911 | */ |
| 912 | continue; |
Jens Axboe | fab6aa7 | 2007-02-17 06:19:24 +0100 | [diff] [blame] | 913 | reaped: |
Jens Axboe | 3707f45 | 2007-02-22 12:26:57 +0100 | [diff] [blame] | 914 | if (td->use_thread) { |
| 915 | long ret; |
| 916 | |
| 917 | if (pthread_join(td->thread, (void *) &ret)) |
| 918 | perror("pthread_join"); |
| 919 | } |
| 920 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 921 | (*nr_running)--; |
| 922 | (*m_rate) -= td->ratemin; |
| 923 | (*t_rate) -= td->rate; |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 924 | |
| 925 | if (td->error) |
| 926 | exit_value++; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 927 | } |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 928 | |
Jens Axboe | 4d2413c | 2006-11-23 11:58:59 +0100 | [diff] [blame] | 929 | if (*nr_running == cputhreads && !pending) |
Jens Axboe | 390c40e | 2007-03-05 12:35:29 +0100 | [diff] [blame] | 930 | terminate_threads(TERMINATE_ALL); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 931 | } |
| 932 | |
Jens Axboe | 906c8d7 | 2006-06-13 09:37:56 +0200 | [diff] [blame] | 933 | /* |
| 934 | * Main function for kicking off and reaping jobs, as needed. |
| 935 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 936 | static void run_threads(void) |
| 937 | { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 938 | struct thread_data *td; |
| 939 | unsigned long spent; |
| 940 | int i, todo, nr_running, m_rate, t_rate, nr_started; |
Jens Axboe | fcb6ade | 2006-05-31 12:14:35 +0200 | [diff] [blame] | 941 | |
Jens Axboe | 2f9ade3 | 2006-10-20 11:25:52 +0200 | [diff] [blame] | 942 | if (fio_pin_memory()) |
| 943 | return; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 944 | |
Jens Axboe | c6ae0a5 | 2006-06-12 11:04:44 +0200 | [diff] [blame] | 945 | if (!terse_output) { |
| 946 | printf("Starting %d thread%s\n", thread_number, thread_number > 1 ? "s" : ""); |
| 947 | fflush(stdout); |
| 948 | } |
Jens Axboe | c04f7ec | 2006-05-31 10:13:16 +0200 | [diff] [blame] | 949 | |
Jens Axboe | 4efa970 | 2006-05-31 11:56:49 +0200 | [diff] [blame] | 950 | signal(SIGINT, sig_handler); |
| 951 | signal(SIGALRM, sig_handler); |
| 952 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 953 | todo = thread_number; |
| 954 | nr_running = 0; |
| 955 | nr_started = 0; |
| 956 | m_rate = t_rate = 0; |
| 957 | |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 958 | for_each_td(td, i) { |
Jens Axboe | 263e529 | 2006-10-18 15:37:01 +0200 | [diff] [blame] | 959 | print_status_init(td->thread_number - 1); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 960 | |
Jens Axboe | 380cf26 | 2007-01-11 14:01:27 +0100 | [diff] [blame] | 961 | if (!td->create_serialize) { |
| 962 | init_disk_util(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 963 | continue; |
Jens Axboe | 380cf26 | 2007-01-11 14:01:27 +0100 | [diff] [blame] | 964 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 965 | |
| 966 | /* |
| 967 | * do file setup here so it happens sequentially, |
| 968 | * we don't want X number of threads getting their |
| 969 | * client data interspersed on disk |
| 970 | */ |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 971 | if (setup_files(td)) { |
Jens Axboe | 5bf13a5 | 2007-02-17 01:51:47 +0100 | [diff] [blame] | 972 | exit_value++; |
| 973 | if (td->error) |
| 974 | 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] | 975 | td_set_runstate(td, TD_REAPED); |
| 976 | todo--; |
| 977 | } |
Jens Axboe | 380cf26 | 2007-01-11 14:01:27 +0100 | [diff] [blame] | 978 | |
| 979 | init_disk_util(td); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 980 | } |
| 981 | |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 982 | set_genesis_time(); |
| 983 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 984 | while (todo) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 985 | struct thread_data *map[MAX_JOBS]; |
| 986 | struct timeval this_start; |
| 987 | int this_jobs = 0, left; |
| 988 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 989 | /* |
| 990 | * create threads (TD_NOT_CREATED -> TD_CREATED) |
| 991 | */ |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 992 | for_each_td(td, i) { |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 993 | if (td->runstate != TD_NOT_CREATED) |
| 994 | continue; |
| 995 | |
| 996 | /* |
| 997 | * never got a chance to start, killed by other |
| 998 | * thread for some reason |
| 999 | */ |
| 1000 | if (td->terminate) { |
| 1001 | todo--; |
| 1002 | continue; |
| 1003 | } |
| 1004 | |
| 1005 | if (td->start_delay) { |
Jens Axboe | 263e529 | 2006-10-18 15:37:01 +0200 | [diff] [blame] | 1006 | spent = mtime_since_genesis(); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1007 | |
| 1008 | if (td->start_delay * 1000 > spent) |
| 1009 | continue; |
| 1010 | } |
| 1011 | |
| 1012 | if (td->stonewall && (nr_started || nr_running)) |
| 1013 | break; |
| 1014 | |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1015 | /* |
| 1016 | * Set state to created. Thread will transition |
| 1017 | * to TD_INITIALIZED when it's done setting up. |
| 1018 | */ |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1019 | td_set_runstate(td, TD_CREATED); |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1020 | map[this_jobs++] = td; |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 1021 | fio_sem_init(&startup_sem, 1); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1022 | nr_started++; |
| 1023 | |
| 1024 | if (td->use_thread) { |
| 1025 | if (pthread_create(&td->thread, NULL, thread_main, td)) { |
| 1026 | perror("thread_create"); |
| 1027 | nr_started--; |
| 1028 | } |
| 1029 | } else { |
| 1030 | if (fork()) |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 1031 | fio_sem_down(&startup_sem); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1032 | else { |
Jens Axboe | a641814 | 2007-02-17 04:47:18 +0100 | [diff] [blame] | 1033 | int ret = fork_main(shm_id, i); |
| 1034 | |
| 1035 | exit(ret); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1036 | } |
| 1037 | } |
| 1038 | } |
| 1039 | |
| 1040 | /* |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1041 | * Wait for the started threads to transition to |
| 1042 | * TD_INITIALIZED. |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1043 | */ |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 1044 | fio_gettime(&this_start, NULL); |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1045 | left = this_jobs; |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 1046 | while (left && !fio_abort) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1047 | if (mtime_since_now(&this_start) > JOB_START_TIMEOUT) |
| 1048 | break; |
| 1049 | |
| 1050 | usleep(100000); |
| 1051 | |
| 1052 | for (i = 0; i < this_jobs; i++) { |
| 1053 | td = map[i]; |
| 1054 | if (!td) |
| 1055 | continue; |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 1056 | if (td->runstate == TD_INITIALIZED) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1057 | map[i] = NULL; |
| 1058 | left--; |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 1059 | } else if (td->runstate >= TD_EXITED) { |
| 1060 | map[i] = NULL; |
| 1061 | left--; |
| 1062 | todo--; |
| 1063 | nr_running++; /* work-around... */ |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1064 | } |
| 1065 | } |
| 1066 | } |
| 1067 | |
| 1068 | if (left) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 1069 | log_err("fio: %d jobs failed to start\n", left); |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1070 | for (i = 0; i < this_jobs; i++) { |
| 1071 | td = map[i]; |
| 1072 | if (!td) |
| 1073 | continue; |
| 1074 | kill(td->pid, SIGTERM); |
| 1075 | } |
| 1076 | break; |
| 1077 | } |
| 1078 | |
| 1079 | /* |
Jens Axboe | b6f4d88 | 2006-06-02 10:32:51 +0200 | [diff] [blame] | 1080 | * start created threads (TD_INITIALIZED -> TD_RUNNING). |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1081 | */ |
Jens Axboe | 34572e2 | 2006-10-20 09:33:18 +0200 | [diff] [blame] | 1082 | for_each_td(td, i) { |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1083 | if (td->runstate != TD_INITIALIZED) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1084 | continue; |
| 1085 | |
| 1086 | td_set_runstate(td, TD_RUNNING); |
| 1087 | nr_running++; |
| 1088 | nr_started--; |
| 1089 | m_rate += td->ratemin; |
| 1090 | t_rate += td->rate; |
Jens Axboe | 7515484 | 2006-06-01 13:56:09 +0200 | [diff] [blame] | 1091 | todo--; |
Jens Axboe | bbfd6b0 | 2006-06-07 19:42:54 +0200 | [diff] [blame] | 1092 | fio_sem_up(&td->mutex); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1093 | } |
| 1094 | |
| 1095 | reap_threads(&nr_running, &t_rate, &m_rate); |
| 1096 | |
| 1097 | if (todo) |
| 1098 | usleep(100000); |
| 1099 | } |
| 1100 | |
| 1101 | while (nr_running) { |
| 1102 | reap_threads(&nr_running, &t_rate, &m_rate); |
| 1103 | usleep(10000); |
| 1104 | } |
| 1105 | |
| 1106 | update_io_ticks(); |
Jens Axboe | 2f9ade3 | 2006-10-20 11:25:52 +0200 | [diff] [blame] | 1107 | fio_unpin_memory(); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1108 | } |
| 1109 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1110 | int main(int argc, char *argv[]) |
| 1111 | { |
Jens Axboe | 29d610e | 2007-02-06 13:25:33 +0100 | [diff] [blame] | 1112 | long ps; |
| 1113 | |
Jens Axboe | dbe1125 | 2007-02-11 00:19:51 +0100 | [diff] [blame] | 1114 | /* |
| 1115 | * We need locale for number printing, if it isn't set then just |
| 1116 | * go with the US format. |
| 1117 | */ |
| 1118 | if (!getenv("LC_NUMERIC")) |
| 1119 | setlocale(LC_NUMERIC, "en_US"); |
| 1120 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1121 | if (parse_options(argc, argv)) |
| 1122 | return 1; |
| 1123 | |
| 1124 | if (!thread_number) { |
Jens Axboe | 3b70d7e | 2006-06-08 21:48:46 +0200 | [diff] [blame] | 1125 | log_err("Nothing to do\n"); |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1126 | return 1; |
| 1127 | } |
| 1128 | |
Jens Axboe | 29d610e | 2007-02-06 13:25:33 +0100 | [diff] [blame] | 1129 | ps = sysconf(_SC_PAGESIZE); |
| 1130 | if (ps < 0) { |
| 1131 | log_err("Failed to get page size\n"); |
| 1132 | return 1; |
| 1133 | } |
| 1134 | |
| 1135 | page_mask = ps - 1; |
| 1136 | |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 1137 | if (write_bw_log) { |
| 1138 | setup_log(&agg_io_log[DDIR_READ]); |
| 1139 | setup_log(&agg_io_log[DDIR_WRITE]); |
| 1140 | } |
| 1141 | |
Jens Axboe | a2f77c9 | 2007-02-22 11:53:00 +0100 | [diff] [blame] | 1142 | set_genesis_time(); |
| 1143 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1144 | disk_util_timer_arm(); |
| 1145 | |
| 1146 | run_threads(); |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 1147 | |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 1148 | if (!fio_abort) { |
Jens Axboe | 6ce15a3 | 2007-01-12 09:04:41 +0100 | [diff] [blame] | 1149 | show_run_stats(); |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 1150 | if (write_bw_log) { |
| 1151 | __finish_log(agg_io_log[DDIR_READ],"agg-read_bw.log"); |
| 1152 | __finish_log(agg_io_log[DDIR_WRITE],"agg-write_bw.log"); |
| 1153 | } |
| 1154 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1155 | |
Jens Axboe | 437c9b7 | 2007-02-13 18:20:37 +0100 | [diff] [blame] | 1156 | return exit_value; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1157 | } |