Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 1 | /* |
| 2 | * The io parts of the fio tool, includes workers for sync and mmap'ed |
| 3 | * io, as well as both posix and linux libaio support. |
| 4 | * |
| 5 | * sync io is implemented on top of aio. |
| 6 | * |
| 7 | * This is not really specific to fio, if the get_io_u/put_io_u and |
| 8 | * structures was pulled into this as well it would be a perfectly |
| 9 | * generic io engine that could be used for other projects. |
| 10 | * |
| 11 | */ |
| 12 | #include <stdio.h> |
| 13 | #include <stdlib.h> |
| 14 | #include <unistd.h> |
Jens Axboe | 5c4e1db | 2006-06-07 14:17:08 +0200 | [diff] [blame] | 15 | #include <string.h> |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 16 | #include <dlfcn.h> |
Bruce Cran | ecc314b | 2011-01-04 10:59:30 +0100 | [diff] [blame] | 17 | #include <fcntl.h> |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 18 | #include <assert.h> |
Jens Axboe | 8c16d84 | 2006-10-20 11:48:33 +0200 | [diff] [blame] | 19 | |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 20 | #include "fio.h" |
Jens Axboe | 7c9b1bc | 2009-06-03 09:25:57 +0200 | [diff] [blame] | 21 | #include "diskutil.h" |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 22 | |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 23 | static FLIST_HEAD(engine_list); |
Jens Axboe | 5f35095 | 2006-11-07 15:20:59 +0100 | [diff] [blame] | 24 | |
Jens Axboe | 8c16d84 | 2006-10-20 11:48:33 +0200 | [diff] [blame] | 25 | static int check_engine_ops(struct ioengine_ops *ops) |
| 26 | { |
Jens Axboe | 5f35095 | 2006-11-07 15:20:59 +0100 | [diff] [blame] | 27 | if (ops->version != FIO_IOOPS_VERSION) { |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 28 | log_err("bad ioops version %d (want %d)\n", ops->version, |
| 29 | FIO_IOOPS_VERSION); |
Jens Axboe | 5f35095 | 2006-11-07 15:20:59 +0100 | [diff] [blame] | 30 | return 1; |
| 31 | } |
| 32 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 33 | if (!ops->queue) { |
| 34 | log_err("%s: no queue handler\n", ops->name); |
| 35 | return 1; |
| 36 | } |
| 37 | |
| 38 | /* |
| 39 | * sync engines only need a ->queue() |
| 40 | */ |
| 41 | if (ops->flags & FIO_SYNCIO) |
| 42 | return 0; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 43 | |
Jens Axboe | 8c16d84 | 2006-10-20 11:48:33 +0200 | [diff] [blame] | 44 | if (!ops->event) { |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 45 | log_err("%s: no event handler\n", ops->name); |
Jens Axboe | 8c16d84 | 2006-10-20 11:48:33 +0200 | [diff] [blame] | 46 | return 1; |
| 47 | } |
| 48 | if (!ops->getevents) { |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 49 | log_err("%s: no getevents handler\n", ops->name); |
Jens Axboe | 8c16d84 | 2006-10-20 11:48:33 +0200 | [diff] [blame] | 50 | return 1; |
| 51 | } |
| 52 | if (!ops->queue) { |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 53 | log_err("%s: no queue handler\n", ops->name); |
Jens Axboe | 8c16d84 | 2006-10-20 11:48:33 +0200 | [diff] [blame] | 54 | return 1; |
| 55 | } |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 56 | |
Jens Axboe | 8c16d84 | 2006-10-20 11:48:33 +0200 | [diff] [blame] | 57 | return 0; |
| 58 | } |
| 59 | |
Jens Axboe | 5f35095 | 2006-11-07 15:20:59 +0100 | [diff] [blame] | 60 | void unregister_ioengine(struct ioengine_ops *ops) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 61 | { |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 62 | dprint(FD_IO, "ioengine %s unregistered\n", ops->name); |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 63 | flist_del(&ops->list); |
| 64 | INIT_FLIST_HEAD(&ops->list); |
Jens Axboe | 5f35095 | 2006-11-07 15:20:59 +0100 | [diff] [blame] | 65 | } |
| 66 | |
Jens Axboe | b2fdda4 | 2007-02-20 20:52:51 +0100 | [diff] [blame] | 67 | void register_ioengine(struct ioengine_ops *ops) |
Jens Axboe | 5f35095 | 2006-11-07 15:20:59 +0100 | [diff] [blame] | 68 | { |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 69 | dprint(FD_IO, "ioengine %s registered\n", ops->name); |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 70 | INIT_FLIST_HEAD(&ops->list); |
| 71 | flist_add_tail(&ops->list, &engine_list); |
Jens Axboe | 5f35095 | 2006-11-07 15:20:59 +0100 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | static struct ioengine_ops *find_ioengine(const char *name) |
| 75 | { |
| 76 | struct ioengine_ops *ops; |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 77 | struct flist_head *entry; |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 78 | |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 79 | flist_for_each(entry, &engine_list) { |
| 80 | ops = flist_entry(entry, struct ioengine_ops, list); |
Jens Axboe | bc5b77a | 2007-02-28 09:32:54 +0100 | [diff] [blame] | 81 | if (!strcmp(name, ops->name)) |
Jens Axboe | 5f35095 | 2006-11-07 15:20:59 +0100 | [diff] [blame] | 82 | return ops; |
| 83 | } |
| 84 | |
| 85 | return NULL; |
| 86 | } |
| 87 | |
| 88 | static struct ioengine_ops *dlopen_ioengine(struct thread_data *td, |
| 89 | const char *engine_lib) |
| 90 | { |
| 91 | struct ioengine_ops *ops; |
| 92 | void *dlhandle; |
| 93 | |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 94 | dprint(FD_IO, "dload engine %s\n", engine_lib); |
| 95 | |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 96 | dlerror(); |
| 97 | dlhandle = dlopen(engine_lib, RTLD_LAZY); |
Jens Axboe | d4dbaaa | 2006-10-09 16:01:27 +0200 | [diff] [blame] | 98 | if (!dlhandle) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 99 | td_vmsg(td, -1, dlerror(), "dlopen"); |
Jens Axboe | d4dbaaa | 2006-10-09 16:01:27 +0200 | [diff] [blame] | 100 | return NULL; |
| 101 | } |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 102 | |
Jens Axboe | da51c05 | 2006-11-07 16:02:11 +0100 | [diff] [blame] | 103 | /* |
| 104 | * Unlike the included modules, external engines should have a |
| 105 | * non-static ioengine structure that we can reference. |
| 106 | */ |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 107 | ops = dlsym(dlhandle, "ioengine"); |
Jens Axboe | d4dbaaa | 2006-10-09 16:01:27 +0200 | [diff] [blame] | 108 | if (!ops) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 109 | td_vmsg(td, -1, dlerror(), "dlsym"); |
Jens Axboe | d4dbaaa | 2006-10-09 16:01:27 +0200 | [diff] [blame] | 110 | dlclose(dlhandle); |
| 111 | return NULL; |
| 112 | } |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 113 | |
Jens Axboe | 5f35095 | 2006-11-07 15:20:59 +0100 | [diff] [blame] | 114 | ops->dlhandle = dlhandle; |
| 115 | return ops; |
| 116 | } |
| 117 | |
| 118 | struct ioengine_ops *load_ioengine(struct thread_data *td, const char *name) |
| 119 | { |
| 120 | struct ioengine_ops *ops, *ret; |
| 121 | char engine[16]; |
| 122 | |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 123 | dprint(FD_IO, "load ioengine %s\n", name); |
| 124 | |
Jens Axboe | 5f35095 | 2006-11-07 15:20:59 +0100 | [diff] [blame] | 125 | strncpy(engine, name, sizeof(engine) - 1); |
| 126 | |
| 127 | /* |
| 128 | * linux libaio has alias names, so convert to what we want |
| 129 | */ |
| 130 | if (!strncmp(engine, "linuxaio", 8) || !strncmp(engine, "aio", 3)) |
| 131 | strcpy(engine, "libaio"); |
| 132 | |
| 133 | ops = find_ioengine(engine); |
| 134 | if (!ops) |
| 135 | ops = dlopen_ioengine(td, name); |
| 136 | |
| 137 | if (!ops) { |
| 138 | log_err("fio: engine %s not loadable\n", name); |
Jens Axboe | b902ceb | 2006-10-09 16:11:45 +0200 | [diff] [blame] | 139 | return NULL; |
| 140 | } |
| 141 | |
Jens Axboe | 8c16d84 | 2006-10-20 11:48:33 +0200 | [diff] [blame] | 142 | /* |
| 143 | * Check that the required methods are there. |
| 144 | */ |
Jens Axboe | 5f35095 | 2006-11-07 15:20:59 +0100 | [diff] [blame] | 145 | if (check_engine_ops(ops)) |
Jens Axboe | 8c16d84 | 2006-10-20 11:48:33 +0200 | [diff] [blame] | 146 | return NULL; |
Jens Axboe | 8c16d84 | 2006-10-20 11:48:33 +0200 | [diff] [blame] | 147 | |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 148 | ret = malloc(sizeof(*ret)); |
| 149 | memcpy(ret, ops, sizeof(*ret)); |
| 150 | ret->data = NULL; |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 151 | |
| 152 | return ret; |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 153 | } |
| 154 | |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 155 | void close_ioengine(struct thread_data *td) |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 156 | { |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 157 | dprint(FD_IO, "close ioengine %s\n", td->io_ops->name); |
| 158 | |
Jens Axboe | 2992b05 | 2008-05-30 22:07:12 +0200 | [diff] [blame] | 159 | if (td->io_ops->cleanup) { |
Jens Axboe | 2866c82 | 2006-10-09 15:57:48 +0200 | [diff] [blame] | 160 | td->io_ops->cleanup(td); |
Jens Axboe | 2992b05 | 2008-05-30 22:07:12 +0200 | [diff] [blame] | 161 | td->io_ops->data = NULL; |
| 162 | } |
Jens Axboe | ebac465 | 2005-12-08 15:25:21 +0100 | [diff] [blame] | 163 | |
Jens Axboe | 5f35095 | 2006-11-07 15:20:59 +0100 | [diff] [blame] | 164 | if (td->io_ops->dlhandle) |
| 165 | dlclose(td->io_ops->dlhandle); |
| 166 | |
Jens Axboe | 8458500 | 2006-10-19 20:26:22 +0200 | [diff] [blame] | 167 | free(td->io_ops); |
| 168 | td->io_ops = NULL; |
Jens Axboe | b990b5c | 2006-09-14 09:48:22 +0200 | [diff] [blame] | 169 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 170 | |
| 171 | int td_io_prep(struct thread_data *td, struct io_u *io_u) |
| 172 | { |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 173 | dprint_io_u(io_u, "prep"); |
Jens Axboe | 7101d9c | 2007-09-12 13:12:39 +0200 | [diff] [blame] | 174 | fio_ro_check(td, io_u); |
| 175 | |
Jens Axboe | 4d4e80f | 2008-03-04 10:18:56 +0100 | [diff] [blame] | 176 | lock_file(td, io_u->file, io_u->ddir); |
Jens Axboe | b2bd2bd | 2008-03-01 18:19:52 +0100 | [diff] [blame] | 177 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 178 | if (td->io_ops->prep) { |
| 179 | int ret = td->io_ops->prep(td, io_u); |
| 180 | |
| 181 | dprint(FD_IO, "->prep(%p)=%d\n", io_u, ret); |
Jens Axboe | b2bd2bd | 2008-03-01 18:19:52 +0100 | [diff] [blame] | 182 | if (ret) |
Jens Axboe | 4d4e80f | 2008-03-04 10:18:56 +0100 | [diff] [blame] | 183 | unlock_file(td, io_u->file); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 184 | return ret; |
| 185 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 186 | |
| 187 | return 0; |
| 188 | } |
| 189 | |
Jens Axboe | e7d2e61 | 2007-12-11 10:49:39 +0100 | [diff] [blame] | 190 | int td_io_getevents(struct thread_data *td, unsigned int min, unsigned int max, |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 191 | struct timespec *t) |
| 192 | { |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 193 | int r = 0; |
| 194 | |
Jens Axboe | face81b | 2007-02-26 10:40:03 +0100 | [diff] [blame] | 195 | if (min > 0 && td->io_ops->commit) { |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 196 | r = td->io_ops->commit(td); |
Jens Axboe | face81b | 2007-02-26 10:40:03 +0100 | [diff] [blame] | 197 | if (r < 0) |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 198 | goto out; |
Jens Axboe | face81b | 2007-02-26 10:40:03 +0100 | [diff] [blame] | 199 | } |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame] | 200 | if (max > td->cur_depth) |
| 201 | max = td->cur_depth; |
| 202 | if (min > max) |
| 203 | max = min; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 204 | |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 205 | r = 0; |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame] | 206 | if (max && td->io_ops->getevents) |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 207 | r = td->io_ops->getevents(td, min, max, t); |
| 208 | out: |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 209 | if (r >= 0) |
| 210 | io_u_mark_complete(td, r); |
Jens Axboe | f3e11d0 | 2010-03-18 19:31:06 +0100 | [diff] [blame] | 211 | else |
Jens Axboe | 7c639b1 | 2010-03-19 08:48:05 +0100 | [diff] [blame] | 212 | td_verror(td, r, "get_events"); |
Jens Axboe | f3e11d0 | 2010-03-18 19:31:06 +0100 | [diff] [blame] | 213 | |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 214 | dprint(FD_IO, "getevents: %d\n", r); |
| 215 | return r; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 216 | } |
| 217 | |
| 218 | int td_io_queue(struct thread_data *td, struct io_u *io_u) |
| 219 | { |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 220 | int ret; |
| 221 | |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 222 | dprint_io_u(io_u, "queue"); |
Jens Axboe | 7101d9c | 2007-09-12 13:12:39 +0200 | [diff] [blame] | 223 | fio_ro_check(td, io_u); |
| 224 | |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 225 | assert((io_u->flags & IO_U_F_FLIGHT) == 0); |
| 226 | io_u->flags |= IO_U_F_FLIGHT; |
| 227 | |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 228 | assert(fio_file_open(io_u->file)); |
Jens Axboe | 3d7b485 | 2007-03-13 14:50:28 +0100 | [diff] [blame] | 229 | |
Jens Axboe | 1178680 | 2007-03-05 18:33:22 +0100 | [diff] [blame] | 230 | io_u->error = 0; |
| 231 | io_u->resid = 0; |
| 232 | |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 233 | if (td->io_ops->flags & FIO_SYNCIO) { |
Jens Axboe | 12d9d84 | 2008-10-16 21:26:10 +0200 | [diff] [blame] | 234 | if (fio_fill_issue_time(td)) |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 235 | fio_gettime(&io_u->issue_time, NULL); |
Jens Axboe | d0c1532 | 2008-10-16 20:33:51 +0200 | [diff] [blame] | 236 | |
| 237 | /* |
| 238 | * only used for iolog |
| 239 | */ |
| 240 | if (td->o.read_iolog_file) |
| 241 | memcpy(&td->last_issue, &io_u->issue_time, |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 242 | sizeof(struct timeval)); |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 243 | } |
| 244 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 245 | if (ddir_rw(io_u->ddir)) |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 246 | td->io_issues[io_u->ddir]++; |
| 247 | |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 248 | ret = td->io_ops->queue(td, io_u); |
Jens Axboe | 5aeb77d | 2007-02-20 11:34:54 +0100 | [diff] [blame] | 249 | |
Jens Axboe | 4d4e80f | 2008-03-04 10:18:56 +0100 | [diff] [blame] | 250 | unlock_file(td, io_u->file); |
Jens Axboe | b2bd2bd | 2008-03-01 18:19:52 +0100 | [diff] [blame] | 251 | |
Jens Axboe | cb21168 | 2009-07-03 08:38:50 +0200 | [diff] [blame] | 252 | /* |
| 253 | * Add warning for O_DIRECT so that users have an easier time |
| 254 | * spotting potentially bad alignment. If this triggers for the first |
| 255 | * IO, then it's likely an alignment problem or because the host fs |
| 256 | * does not support O_DIRECT |
| 257 | */ |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 258 | if (io_u->error == EINVAL && td->io_issues[io_u->ddir & 1] == 1 && |
Jens Axboe | cb21168 | 2009-07-03 08:38:50 +0200 | [diff] [blame] | 259 | td->o.odirect) { |
| 260 | log_info("fio: first direct IO errored. File system may not " |
| 261 | "support direct IO, or iomem_align= is bad.\n"); |
| 262 | } |
| 263 | |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 264 | if (!td->io_ops->commit) { |
| 265 | io_u_mark_submit(td, 1); |
| 266 | io_u_mark_complete(td, 1); |
| 267 | } |
| 268 | |
Jens Axboe | d800575 | 2008-05-15 09:49:09 +0200 | [diff] [blame] | 269 | if (ret == FIO_Q_COMPLETED) { |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 270 | if (ddir_rw(io_u->ddir)) { |
Jens Axboe | d800575 | 2008-05-15 09:49:09 +0200 | [diff] [blame] | 271 | io_u_mark_depth(td, 1); |
| 272 | td->ts.total_io_u[io_u->ddir]++; |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 273 | } else if (io_u->ddir == DDIR_TRIM) |
| 274 | td->ts.total_io_u[2]++; |
Jens Axboe | d800575 | 2008-05-15 09:49:09 +0200 | [diff] [blame] | 275 | } else if (ret == FIO_Q_QUEUED) { |
Jens Axboe | eb7c8ae | 2007-02-26 14:45:12 +0100 | [diff] [blame] | 276 | int r; |
| 277 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 278 | if (ddir_rw(io_u->ddir)) { |
Jens Axboe | d800575 | 2008-05-15 09:49:09 +0200 | [diff] [blame] | 279 | td->io_u_queued++; |
| 280 | td->ts.total_io_u[io_u->ddir]++; |
| 281 | } |
| 282 | |
| 283 | if (td->io_u_queued >= td->o.iodepth_batch) { |
Jens Axboe | eb7c8ae | 2007-02-26 14:45:12 +0100 | [diff] [blame] | 284 | r = td_io_commit(td); |
| 285 | if (r < 0) |
| 286 | return r; |
| 287 | } |
| 288 | } |
Jens Axboe | cb5ab51 | 2007-02-26 12:57:09 +0100 | [diff] [blame] | 289 | |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 290 | if ((td->io_ops->flags & FIO_SYNCIO) == 0) { |
Jens Axboe | 12d9d84 | 2008-10-16 21:26:10 +0200 | [diff] [blame] | 291 | if (fio_fill_issue_time(td)) |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 292 | fio_gettime(&io_u->issue_time, NULL); |
Jens Axboe | d0c1532 | 2008-10-16 20:33:51 +0200 | [diff] [blame] | 293 | |
| 294 | /* |
| 295 | * only used for iolog |
| 296 | */ |
| 297 | if (td->o.read_iolog_file) |
| 298 | memcpy(&td->last_issue, &io_u->issue_time, |
| 299 | sizeof(struct timeval)); |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 300 | } |
| 301 | |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 302 | return ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 303 | } |
Jens Axboe | 8c16d84 | 2006-10-20 11:48:33 +0200 | [diff] [blame] | 304 | |
| 305 | int td_io_init(struct thread_data *td) |
| 306 | { |
Jens Axboe | eeb1216 | 2007-03-20 10:47:45 +0100 | [diff] [blame] | 307 | int ret = 0; |
Jens Axboe | 8c16d84 | 2006-10-20 11:48:33 +0200 | [diff] [blame] | 308 | |
Jens Axboe | eeb1216 | 2007-03-20 10:47:45 +0100 | [diff] [blame] | 309 | if (td->io_ops->init) { |
| 310 | ret = td->io_ops->init(td); |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 311 | if (ret && td->o.iodepth > 1) { |
| 312 | log_err("fio: io engine init failed. Perhaps try" |
| 313 | " reducing io depth?\n"); |
| 314 | } |
Jens Axboe | 7c97389 | 2011-01-22 15:11:03 -0700 | [diff] [blame] | 315 | if (!td->error) |
| 316 | td->error = ret; |
Jens Axboe | eeb1216 | 2007-03-20 10:47:45 +0100 | [diff] [blame] | 317 | } |
| 318 | |
| 319 | return ret; |
Jens Axboe | 8c16d84 | 2006-10-20 11:48:33 +0200 | [diff] [blame] | 320 | } |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 321 | |
| 322 | int td_io_commit(struct thread_data *td) |
| 323 | { |
Jens Axboe | f3e11d0 | 2010-03-18 19:31:06 +0100 | [diff] [blame] | 324 | int ret; |
| 325 | |
Jens Axboe | ee56ad5 | 2008-02-01 10:30:20 +0100 | [diff] [blame] | 326 | dprint(FD_IO, "calling ->commit(), depth %d\n", td->cur_depth); |
| 327 | |
Jens Axboe | d800575 | 2008-05-15 09:49:09 +0200 | [diff] [blame] | 328 | if (!td->cur_depth || !td->io_u_queued) |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 329 | return 0; |
Jens Axboe | cb5ab51 | 2007-02-26 12:57:09 +0100 | [diff] [blame] | 330 | |
Jens Axboe | d800575 | 2008-05-15 09:49:09 +0200 | [diff] [blame] | 331 | io_u_mark_depth(td, td->io_u_queued); |
Jens Axboe | cb5ab51 | 2007-02-26 12:57:09 +0100 | [diff] [blame] | 332 | td->io_u_queued = 0; |
Jens Axboe | d800575 | 2008-05-15 09:49:09 +0200 | [diff] [blame] | 333 | |
Jens Axboe | f3e11d0 | 2010-03-18 19:31:06 +0100 | [diff] [blame] | 334 | if (td->io_ops->commit) { |
| 335 | ret = td->io_ops->commit(td); |
| 336 | if (ret) |
| 337 | td_verror(td, -ret, "io commit"); |
| 338 | } |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 339 | |
| 340 | return 0; |
| 341 | } |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 342 | |
| 343 | int td_io_open_file(struct thread_data *td, struct fio_file *f) |
| 344 | { |
Jens Axboe | 22a57ba | 2009-06-09 14:34:35 +0200 | [diff] [blame] | 345 | assert(!fio_file_open(f)); |
| 346 | assert(f->fd == -1); |
| 347 | |
Jens Axboe | 413d669 | 2007-03-27 15:38:21 +0200 | [diff] [blame] | 348 | if (td->io_ops->open_file(td, f)) { |
| 349 | if (td->error == EINVAL && td->o.odirect) |
| 350 | log_err("fio: destination does not support O_DIRECT\n"); |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 351 | if (td->error == EMFILE) { |
| 352 | log_err("fio: try reducing/setting openfiles (failed" |
| 353 | " at %u of %u)\n", td->nr_open_files, |
| 354 | td->o.nr_files); |
| 355 | } |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 356 | |
Jens Axboe | 22a57ba | 2009-06-09 14:34:35 +0200 | [diff] [blame] | 357 | assert(f->fd == -1); |
| 358 | assert(!fio_file_open(f)); |
Jens Axboe | 413d669 | 2007-03-27 15:38:21 +0200 | [diff] [blame] | 359 | return 1; |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 360 | } |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 361 | |
Jens Axboe | d5707a3 | 2008-06-04 15:13:02 +0200 | [diff] [blame] | 362 | fio_file_reset(f); |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 363 | fio_file_set_open(f); |
| 364 | fio_file_clear_closing(f); |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 365 | disk_util_inc(f->du); |
Jens Axboe | d5707a3 | 2008-06-04 15:13:02 +0200 | [diff] [blame] | 366 | |
| 367 | td->nr_open_files++; |
| 368 | get_file(f); |
| 369 | |
Jens Axboe | 6615982 | 2007-04-16 21:54:24 +0200 | [diff] [blame] | 370 | if (f->filetype == FIO_TYPE_PIPE) { |
| 371 | if (td_random(td)) { |
| 372 | log_err("fio: can't seek on pipes (no random io)\n"); |
| 373 | goto err; |
| 374 | } |
| 375 | } |
| 376 | |
Jens Axboe | 413d669 | 2007-03-27 15:38:21 +0200 | [diff] [blame] | 377 | if (td->io_ops->flags & FIO_DISKLESSIO) |
| 378 | goto done; |
| 379 | |
| 380 | if (td->o.invalidate_cache && file_invalidate_cache(td, f)) |
| 381 | goto err; |
| 382 | |
Jens Axboe | 6615982 | 2007-04-16 21:54:24 +0200 | [diff] [blame] | 383 | if (td->o.fadvise_hint && |
| 384 | (f->filetype == FIO_TYPE_BD || f->filetype == FIO_TYPE_FILE)) { |
Jens Axboe | 413d669 | 2007-03-27 15:38:21 +0200 | [diff] [blame] | 385 | int flags; |
| 386 | |
| 387 | if (td_random(td)) |
| 388 | flags = POSIX_FADV_RANDOM; |
| 389 | else |
| 390 | flags = POSIX_FADV_SEQUENTIAL; |
| 391 | |
Bruce Cran | ecc314b | 2011-01-04 10:59:30 +0100 | [diff] [blame] | 392 | if (posix_fadvise(f->fd, f->file_offset, f->io_size, flags) < 0) { |
Jens Axboe | 413d669 | 2007-03-27 15:38:21 +0200 | [diff] [blame] | 393 | td_verror(td, errno, "fadvise"); |
| 394 | goto err; |
| 395 | } |
| 396 | } |
| 397 | |
Jens Axboe | e116f2b | 2008-06-04 15:14:24 +0200 | [diff] [blame] | 398 | #ifdef FIO_OS_DIRECTIO |
| 399 | /* |
| 400 | * Some OS's have a distinct call to mark the file non-buffered, |
| 401 | * instead of using O_DIRECT (Solaris) |
| 402 | */ |
| 403 | if (td->o.odirect) { |
| 404 | int ret = fio_set_odirect(f->fd); |
| 405 | |
| 406 | if (ret) { |
| 407 | td_verror(td, ret, "fio_set_odirect"); |
Jens Axboe | 78e51c7 | 2010-11-23 11:12:39 +0100 | [diff] [blame] | 408 | log_err("fio: the file system does not seem to support direct IO\n"); |
Jens Axboe | e116f2b | 2008-06-04 15:14:24 +0200 | [diff] [blame] | 409 | goto err; |
| 410 | } |
| 411 | } |
| 412 | #endif |
| 413 | |
Jens Axboe | 413d669 | 2007-03-27 15:38:21 +0200 | [diff] [blame] | 414 | done: |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 415 | log_file(td, f, FIO_LOG_OPEN_FILE); |
Jens Axboe | 413d669 | 2007-03-27 15:38:21 +0200 | [diff] [blame] | 416 | return 0; |
| 417 | err: |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 418 | disk_util_dec(f->du); |
Jens Axboe | b284075 | 2007-04-12 12:57:27 +0200 | [diff] [blame] | 419 | if (td->io_ops->close_file) |
| 420 | td->io_ops->close_file(td, f); |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 421 | return 1; |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 422 | } |
| 423 | |
Jens Axboe | 6977bcd | 2008-03-01 15:55:36 +0100 | [diff] [blame] | 424 | int td_io_close_file(struct thread_data *td, struct fio_file *f) |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 425 | { |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 426 | if (!fio_file_closing(f)) |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 427 | log_file(td, f, FIO_LOG_CLOSE_FILE); |
| 428 | |
Jens Axboe | 0ad920e | 2007-03-13 11:06:45 +0100 | [diff] [blame] | 429 | /* |
| 430 | * mark as closing, do real close when last io on it has completed |
| 431 | */ |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 432 | fio_file_set_closing(f); |
Jens Axboe | 0ad920e | 2007-03-13 11:06:45 +0100 | [diff] [blame] | 433 | |
Jens Axboe | c97bd0f | 2009-05-27 13:11:20 +0200 | [diff] [blame] | 434 | disk_util_dec(f->du); |
Jens Axboe | 4d4e80f | 2008-03-04 10:18:56 +0100 | [diff] [blame] | 435 | unlock_file_all(td, f); |
Jens Axboe | 29c1349 | 2008-03-01 19:25:20 +0100 | [diff] [blame] | 436 | |
Jens Axboe | 6977bcd | 2008-03-01 15:55:36 +0100 | [diff] [blame] | 437 | return put_file(td, f); |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 438 | } |
Jens Axboe | df9c26b | 2009-03-05 10:13:58 +0100 | [diff] [blame] | 439 | |
| 440 | int td_io_get_file_size(struct thread_data *td, struct fio_file *f) |
| 441 | { |
| 442 | if (!td->io_ops->get_file_size) |
| 443 | return 0; |
| 444 | |
| 445 | return td->io_ops->get_file_size(td, f); |
| 446 | } |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 447 | |
Jens Axboe | 0a28ecd | 2010-03-09 21:40:38 +0100 | [diff] [blame] | 448 | static int do_sync_file_range(struct thread_data *td, struct fio_file *f) |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 449 | { |
| 450 | off64_t offset, nbytes; |
| 451 | |
| 452 | offset = f->first_write; |
| 453 | nbytes = f->last_write - f->first_write; |
| 454 | |
Jens Axboe | 3843deb | 2010-03-09 20:41:15 +0100 | [diff] [blame] | 455 | if (!nbytes) |
| 456 | return 0; |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 457 | |
Jens Axboe | 3843deb | 2010-03-09 20:41:15 +0100 | [diff] [blame] | 458 | return sync_file_range(f->fd, offset, nbytes, td->o.sync_file_range); |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 459 | } |
Jens Axboe | 0a28ecd | 2010-03-09 21:40:38 +0100 | [diff] [blame] | 460 | |
| 461 | int do_io_u_sync(struct thread_data *td, struct io_u *io_u) |
| 462 | { |
| 463 | int ret; |
| 464 | |
| 465 | if (io_u->ddir == DDIR_SYNC) { |
| 466 | ret = fsync(io_u->file->fd); |
| 467 | } else if (io_u->ddir == DDIR_DATASYNC) { |
| 468 | #ifdef FIO_HAVE_FDATASYNC |
| 469 | ret = fdatasync(io_u->file->fd); |
| 470 | #else |
| 471 | ret = io_u->xfer_buflen; |
| 472 | io_u->error = EINVAL; |
| 473 | #endif |
| 474 | } else if (io_u->ddir == DDIR_SYNC_FILE_RANGE) |
| 475 | ret = do_sync_file_range(td, io_u->file); |
| 476 | else { |
| 477 | ret = io_u->xfer_buflen; |
| 478 | io_u->error = EINVAL; |
| 479 | } |
| 480 | |
Jens Axboe | cb849a7 | 2010-03-09 21:44:55 +0100 | [diff] [blame] | 481 | if (ret < 0) |
| 482 | io_u->error = errno; |
| 483 | |
Jens Axboe | 0a28ecd | 2010-03-09 21:40:38 +0100 | [diff] [blame] | 484 | return ret; |
| 485 | } |
Jens Axboe | a5f3027 | 2010-07-19 16:19:55 -0600 | [diff] [blame] | 486 | |
| 487 | int do_io_u_trim(struct thread_data *td, struct io_u *io_u) |
| 488 | { |
| 489 | #ifndef FIO_HAVE_TRIM |
| 490 | io_u->error = EINVAL; |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 491 | return 0; |
Jens Axboe | a5f3027 | 2010-07-19 16:19:55 -0600 | [diff] [blame] | 492 | #else |
| 493 | struct fio_file *f = io_u->file; |
| 494 | int ret; |
| 495 | |
Jens Axboe | c6404a4 | 2010-09-24 19:36:34 +0200 | [diff] [blame] | 496 | ret = os_trim(f->fd, io_u->offset, io_u->xfer_buflen); |
Jens Axboe | a5f3027 | 2010-07-19 16:19:55 -0600 | [diff] [blame] | 497 | if (!ret) |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 498 | return io_u->xfer_buflen;; |
Jens Axboe | a5f3027 | 2010-07-19 16:19:55 -0600 | [diff] [blame] | 499 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 500 | io_u->error = ret; |
| 501 | return 0; |
Jens Axboe | a5f3027 | 2010-07-19 16:19:55 -0600 | [diff] [blame] | 502 | #endif |
| 503 | } |