Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Code related to writing an iolog of what a thread is doing, and to |
| 3 | * later read that back and replay |
| 4 | */ |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 5 | #include <stdio.h> |
| 6 | #include <stdlib.h> |
Jens Axboe | 5921e80 | 2008-05-30 15:02:38 +0200 | [diff] [blame] | 7 | #include <libgen.h> |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 8 | #include <assert.h> |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 9 | #include "flist.h" |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 10 | #include "fio.h" |
Jens Axboe | 4f5af7b | 2009-06-03 08:45:40 +0200 | [diff] [blame] | 11 | #include "verify.h" |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 12 | |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 13 | static const char iolog_ver2[] = "fio version 2 iolog"; |
| 14 | |
Jens Axboe | 691c8fb | 2008-03-07 14:26:26 +0100 | [diff] [blame] | 15 | void queue_io_piece(struct thread_data *td, struct io_piece *ipo) |
| 16 | { |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 17 | flist_add_tail(&ipo->list, &td->io_log_list); |
Jens Axboe | 691c8fb | 2008-03-07 14:26:26 +0100 | [diff] [blame] | 18 | td->total_io_size += ipo->len; |
| 19 | } |
| 20 | |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 21 | void log_io_u(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 22 | { |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 23 | const char *act[] = { "read", "write", "sync", "datasync" }; |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 24 | |
| 25 | assert(io_u->ddir < 3); |
| 26 | |
| 27 | if (!td->o.write_iolog_file) |
| 28 | return; |
| 29 | |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 30 | fprintf(td->iolog_f, "%s %s %llu %lu\n", io_u->file->file_name, |
| 31 | act[io_u->ddir], io_u->offset, |
| 32 | io_u->buflen); |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 33 | } |
| 34 | |
| 35 | void log_file(struct thread_data *td, struct fio_file *f, |
| 36 | enum file_log_act what) |
| 37 | { |
| 38 | const char *act[] = { "add", "open", "close" }; |
| 39 | |
| 40 | assert(what < 3); |
| 41 | |
| 42 | if (!td->o.write_iolog_file) |
| 43 | return; |
| 44 | |
Jens Axboe | 393ca7e | 2008-05-15 09:17:42 +0200 | [diff] [blame] | 45 | |
| 46 | /* |
| 47 | * this happens on the pre-open/close done before the job starts |
| 48 | */ |
| 49 | if (!td->iolog_f) |
| 50 | return; |
| 51 | |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 52 | fprintf(td->iolog_f, "%s %s\n", f->file_name, act[what]); |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 53 | } |
| 54 | |
Jens Axboe | a61edde | 2007-05-15 14:29:58 +0200 | [diff] [blame] | 55 | static void iolog_delay(struct thread_data *td, unsigned long delay) |
| 56 | { |
| 57 | unsigned long usec = utime_since_now(&td->last_issue); |
| 58 | |
| 59 | if (delay < usec) |
| 60 | return; |
| 61 | |
| 62 | delay -= usec; |
| 63 | |
| 64 | /* |
| 65 | * less than 100 usec delay, just regard it as noise |
| 66 | */ |
| 67 | if (delay < 100) |
| 68 | return; |
| 69 | |
| 70 | usec_sleep(td, delay); |
| 71 | } |
| 72 | |
Jens Axboe | f718273 | 2008-03-10 13:57:58 +0100 | [diff] [blame] | 73 | static int ipo_special(struct thread_data *td, struct io_piece *ipo) |
| 74 | { |
| 75 | struct fio_file *f; |
| 76 | int ret; |
| 77 | |
| 78 | /* |
| 79 | * Not a special ipo |
| 80 | */ |
| 81 | if (ipo->ddir != DDIR_INVAL) |
| 82 | return 0; |
| 83 | |
| 84 | f = td->files[ipo->fileno]; |
| 85 | |
| 86 | switch (ipo->file_action) { |
| 87 | case FIO_LOG_OPEN_FILE: |
| 88 | ret = td_io_open_file(td, f); |
Glen Ogilvie | 457bf39 | 2009-11-03 21:52:36 +0100 | [diff] [blame] | 89 | if (!ret) |
Jens Axboe | f718273 | 2008-03-10 13:57:58 +0100 | [diff] [blame] | 90 | break; |
Jens Axboe | f718273 | 2008-03-10 13:57:58 +0100 | [diff] [blame] | 91 | td_verror(td, ret, "iolog open file"); |
| 92 | return -1; |
| 93 | case FIO_LOG_CLOSE_FILE: |
| 94 | td_io_close_file(td, f); |
| 95 | break; |
| 96 | case FIO_LOG_UNLINK_FILE: |
| 97 | unlink(f->file_name); |
| 98 | break; |
| 99 | default: |
| 100 | log_err("fio: bad file action %d\n", ipo->file_action); |
| 101 | break; |
| 102 | } |
| 103 | |
| 104 | return 1; |
| 105 | } |
| 106 | |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 107 | int read_iolog_get(struct thread_data *td, struct io_u *io_u) |
| 108 | { |
| 109 | struct io_piece *ipo; |
Glen Ogilvie | 457bf39 | 2009-11-03 21:52:36 +0100 | [diff] [blame] | 110 | unsigned long elapsed; |
| 111 | |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 112 | while (!flist_empty(&td->io_log_list)) { |
Jens Axboe | f718273 | 2008-03-10 13:57:58 +0100 | [diff] [blame] | 113 | int ret; |
| 114 | |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 115 | ipo = flist_entry(td->io_log_list.next, struct io_piece, list); |
| 116 | flist_del(&ipo->list); |
Jens Axboe | a61edde | 2007-05-15 14:29:58 +0200 | [diff] [blame] | 117 | |
Jens Axboe | f718273 | 2008-03-10 13:57:58 +0100 | [diff] [blame] | 118 | ret = ipo_special(td, ipo); |
| 119 | if (ret < 0) { |
| 120 | free(ipo); |
| 121 | break; |
| 122 | } else if (ret > 0) { |
| 123 | free(ipo); |
| 124 | continue; |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 125 | } |
| 126 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 127 | io_u->ddir = ipo->ddir; |
Glen Ogilvie | 457bf39 | 2009-11-03 21:52:36 +0100 | [diff] [blame] | 128 | if (ipo->ddir != DDIR_WAIT) { |
| 129 | io_u->offset = ipo->offset; |
| 130 | io_u->buflen = ipo->len; |
| 131 | io_u->file = td->files[ipo->fileno]; |
| 132 | get_file(io_u->file); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 133 | |
Glen Ogilvie | 457bf39 | 2009-11-03 21:52:36 +0100 | [diff] [blame] | 134 | dprint(FD_IO, "iolog: get %llu/%lu/%s\n", io_u->offset, |
| 135 | io_u->buflen, io_u->file->file_name); |
| 136 | if (ipo->delay) iolog_delay(td, ipo->delay); |
| 137 | } else { |
| 138 | elapsed = mtime_since_genesis(); |
| 139 | if (ipo->delay > elapsed) |
| 140 | usec_sleep(td, (ipo->delay - elapsed) * 1000); |
| 141 | |
| 142 | } |
Jens Axboe | a61edde | 2007-05-15 14:29:58 +0200 | [diff] [blame] | 143 | |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 144 | free(ipo); |
Glen Ogilvie | 457bf39 | 2009-11-03 21:52:36 +0100 | [diff] [blame] | 145 | |
| 146 | if (ipo->ddir != DDIR_WAIT) |
| 147 | return 0; |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 148 | } |
| 149 | |
Jens Axboe | 20e354e | 2007-07-23 14:36:16 +0200 | [diff] [blame] | 150 | td->done = 1; |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 151 | return 1; |
| 152 | } |
| 153 | |
| 154 | void prune_io_piece_log(struct thread_data *td) |
| 155 | { |
| 156 | struct io_piece *ipo; |
Jens Axboe | 4b87898 | 2007-03-26 09:32:22 +0200 | [diff] [blame] | 157 | struct rb_node *n; |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 158 | |
Jens Axboe | 4b87898 | 2007-03-26 09:32:22 +0200 | [diff] [blame] | 159 | while ((n = rb_first(&td->io_hist_tree)) != NULL) { |
| 160 | ipo = rb_entry(n, struct io_piece, rb_node); |
| 161 | rb_erase(n, &td->io_hist_tree); |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 162 | free(ipo); |
| 163 | } |
Jens Axboe | 8ce9cd3 | 2008-02-21 09:52:35 +0100 | [diff] [blame] | 164 | |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 165 | while (!flist_empty(&td->io_hist_list)) { |
| 166 | ipo = flist_entry(td->io_hist_list.next, struct io_piece, list); |
| 167 | flist_del(&ipo->list); |
Jens Axboe | 8ce9cd3 | 2008-02-21 09:52:35 +0100 | [diff] [blame] | 168 | free(ipo); |
| 169 | } |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 170 | } |
| 171 | |
| 172 | /* |
Jens Axboe | 34403fb | 2007-03-02 21:43:25 +0100 | [diff] [blame] | 173 | * log a successful write, so we can unwind the log for verify |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 174 | */ |
| 175 | void log_io_piece(struct thread_data *td, struct io_u *io_u) |
| 176 | { |
Jens Axboe | 8de8f04 | 2007-03-27 10:36:12 +0200 | [diff] [blame] | 177 | struct rb_node **p, *parent; |
Jens Axboe | 4b87898 | 2007-03-26 09:32:22 +0200 | [diff] [blame] | 178 | struct io_piece *ipo, *__ipo; |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 179 | |
Jens Axboe | 4b87898 | 2007-03-26 09:32:22 +0200 | [diff] [blame] | 180 | ipo = malloc(sizeof(struct io_piece)); |
Jens Axboe | 53cdc68 | 2006-10-18 11:50:58 +0200 | [diff] [blame] | 181 | ipo->file = io_u->file; |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 182 | ipo->offset = io_u->offset; |
| 183 | ipo->len = io_u->buflen; |
| 184 | |
| 185 | /* |
Jens Axboe | 8de8f04 | 2007-03-27 10:36:12 +0200 | [diff] [blame] | 186 | * We don't need to sort the entries, if: |
| 187 | * |
| 188 | * Sequential writes, or |
| 189 | * Random writes that lay out the file as it goes along |
| 190 | * |
| 191 | * For both these cases, just reading back data in the order we |
| 192 | * wrote it out is the fastest. |
Jens Axboe | 8347239 | 2009-02-19 21:32:12 +0100 | [diff] [blame] | 193 | * |
| 194 | * One exception is if we don't have a random map AND we are doing |
| 195 | * verifies, in that case we need to check for duplicate blocks and |
| 196 | * drop the old one, which we rely on the rb insert/lookup for |
| 197 | * handling. |
Jens Axboe | 8de8f04 | 2007-03-27 10:36:12 +0200 | [diff] [blame] | 198 | */ |
Jens Axboe | 8347239 | 2009-02-19 21:32:12 +0100 | [diff] [blame] | 199 | if ((!td_random(td) || !td->o.overwrite) && |
| 200 | (file_randommap(td, ipo->file) || td->o.verify == VERIFY_NONE)) { |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 201 | INIT_FLIST_HEAD(&ipo->list); |
| 202 | flist_add_tail(&ipo->list, &td->io_hist_list); |
Jens Axboe | 8de8f04 | 2007-03-27 10:36:12 +0200 | [diff] [blame] | 203 | return; |
| 204 | } |
| 205 | |
| 206 | RB_CLEAR_NODE(&ipo->rb_node); |
Jens Axboe | 8de8f04 | 2007-03-27 10:36:12 +0200 | [diff] [blame] | 207 | |
| 208 | /* |
Jens Axboe | 4b87898 | 2007-03-26 09:32:22 +0200 | [diff] [blame] | 209 | * Sort the entry into the verification list |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 210 | */ |
Jens Axboe | 8347239 | 2009-02-19 21:32:12 +0100 | [diff] [blame] | 211 | restart: |
| 212 | p = &td->io_hist_tree.rb_node; |
| 213 | parent = NULL; |
Jens Axboe | 4b87898 | 2007-03-26 09:32:22 +0200 | [diff] [blame] | 214 | while (*p) { |
| 215 | parent = *p; |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 216 | |
Jens Axboe | 4b87898 | 2007-03-26 09:32:22 +0200 | [diff] [blame] | 217 | __ipo = rb_entry(parent, struct io_piece, rb_node); |
Jens Axboe | 8347239 | 2009-02-19 21:32:12 +0100 | [diff] [blame] | 218 | if (ipo->offset < __ipo->offset) |
Jens Axboe | 4b87898 | 2007-03-26 09:32:22 +0200 | [diff] [blame] | 219 | p = &(*p)->rb_left; |
Jens Axboe | 8347239 | 2009-02-19 21:32:12 +0100 | [diff] [blame] | 220 | else if (ipo->offset > __ipo->offset) |
Jens Axboe | bb5d7d0 | 2007-03-27 10:21:25 +0200 | [diff] [blame] | 221 | p = &(*p)->rb_right; |
Jens Axboe | 8347239 | 2009-02-19 21:32:12 +0100 | [diff] [blame] | 222 | else { |
| 223 | assert(ipo->len == __ipo->len); |
| 224 | rb_erase(parent, &td->io_hist_tree); |
| 225 | goto restart; |
| 226 | } |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 227 | } |
| 228 | |
Jens Axboe | 4b87898 | 2007-03-26 09:32:22 +0200 | [diff] [blame] | 229 | rb_link_node(&ipo->rb_node, parent, p); |
| 230 | rb_insert_color(&ipo->rb_node, &td->io_hist_tree); |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 231 | } |
| 232 | |
| 233 | void write_iolog_close(struct thread_data *td) |
| 234 | { |
| 235 | fflush(td->iolog_f); |
| 236 | fclose(td->iolog_f); |
| 237 | free(td->iolog_buf); |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 238 | td->iolog_f = NULL; |
| 239 | td->iolog_buf = NULL; |
Jens Axboe | 3c39a37 | 2006-06-06 20:56:12 +0200 | [diff] [blame] | 240 | } |
| 241 | |
Jens Axboe | fb71fbd | 2006-10-20 09:15:46 +0200 | [diff] [blame] | 242 | /* |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 243 | * Read version 2 iolog data. It is enhanced to include per-file logging, |
| 244 | * syncs, etc. |
Jens Axboe | fb71fbd | 2006-10-20 09:15:46 +0200 | [diff] [blame] | 245 | */ |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 246 | static int read_iolog2(struct thread_data *td, FILE *f) |
| 247 | { |
| 248 | unsigned long long offset; |
| 249 | unsigned int bytes; |
Glen Ogilvie | 457bf39 | 2009-11-03 21:52:36 +0100 | [diff] [blame] | 250 | int reads, writes, waits, fileno = 0, file_action = 0; /* stupid gcc */ |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 251 | char *fname, *act; |
| 252 | char *str, *p; |
Jens Axboe | 53fa9b6 | 2007-07-23 11:25:39 +0200 | [diff] [blame] | 253 | enum fio_ddir rw; |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 254 | |
| 255 | free_release_files(td); |
| 256 | |
| 257 | /* |
| 258 | * Read in the read iolog and store it, reuse the infrastructure |
| 259 | * for doing verifications. |
| 260 | */ |
| 261 | str = malloc(4096); |
| 262 | fname = malloc(256+16); |
| 263 | act = malloc(256+16); |
| 264 | |
Glen Ogilvie | 457bf39 | 2009-11-03 21:52:36 +0100 | [diff] [blame] | 265 | reads = writes = waits = 0; |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 266 | while ((p = fgets(str, 4096, f)) != NULL) { |
| 267 | struct io_piece *ipo; |
| 268 | int r; |
| 269 | |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 270 | r = sscanf(p, "%256s %256s %llu %u", fname, act, &offset, |
| 271 | &bytes); |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 272 | if (r == 4) { |
| 273 | /* |
| 274 | * Check action first |
| 275 | */ |
Glen Ogilvie | 457bf39 | 2009-11-03 21:52:36 +0100 | [diff] [blame] | 276 | if (!strcmp(act, "wait")) |
| 277 | rw = DDIR_WAIT; |
| 278 | else if (!strcmp(act, "read")) |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 279 | rw = DDIR_READ; |
| 280 | else if (!strcmp(act, "write")) |
| 281 | rw = DDIR_WRITE; |
| 282 | else if (!strcmp(act, "sync")) |
| 283 | rw = DDIR_SYNC; |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 284 | else if (!strcmp(act, "datasync")) |
| 285 | rw = DDIR_DATASYNC; |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 286 | else { |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 287 | log_err("fio: bad iolog file action: %s\n", |
| 288 | act); |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 289 | continue; |
| 290 | } |
| 291 | } else if (r == 2) { |
| 292 | rw = DDIR_INVAL; |
| 293 | if (!strcmp(act, "add")) { |
| 294 | td->o.nr_files++; |
| 295 | fileno = add_file(td, fname); |
| 296 | file_action = FIO_LOG_ADD_FILE; |
| 297 | continue; |
| 298 | } else if (!strcmp(act, "open")) { |
| 299 | fileno = get_fileno(td, fname); |
| 300 | file_action = FIO_LOG_OPEN_FILE; |
| 301 | } else if (!strcmp(act, "close")) { |
| 302 | fileno = get_fileno(td, fname); |
| 303 | file_action = FIO_LOG_CLOSE_FILE; |
| 304 | } else { |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 305 | log_err("fio: bad iolog file action: %s\n", |
| 306 | act); |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 307 | continue; |
| 308 | } |
| 309 | } else { |
| 310 | log_err("bad iolog2: %s", p); |
| 311 | continue; |
| 312 | } |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 313 | |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 314 | if (rw == DDIR_READ) |
| 315 | reads++; |
Jens Axboe | 4241ea8 | 2007-09-12 08:18:36 +0200 | [diff] [blame] | 316 | else if (rw == DDIR_WRITE) { |
Jens Axboe | 4241ea8 | 2007-09-12 08:18:36 +0200 | [diff] [blame] | 317 | /* |
| 318 | * Don't add a write for ro mode |
| 319 | */ |
| 320 | if (read_only) |
| 321 | continue; |
Jens Axboe | ed4aa70 | 2008-03-07 13:39:59 +0100 | [diff] [blame] | 322 | writes++; |
Glen Ogilvie | 457bf39 | 2009-11-03 21:52:36 +0100 | [diff] [blame] | 323 | } else if (rw == DDIR_WAIT) { |
| 324 | waits++; |
| 325 | } else if (rw == DDIR_INVAL) { |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 326 | } else if (!ddir_sync(rw)) { |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 327 | log_err("bad ddir: %d\n", rw); |
| 328 | continue; |
| 329 | } |
| 330 | |
| 331 | /* |
| 332 | * Make note of file |
| 333 | */ |
| 334 | ipo = malloc(sizeof(*ipo)); |
| 335 | memset(ipo, 0, sizeof(*ipo)); |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 336 | INIT_FLIST_HEAD(&ipo->list); |
Jens Axboe | 53fa9b6 | 2007-07-23 11:25:39 +0200 | [diff] [blame] | 337 | ipo->ddir = rw; |
Glen Ogilvie | 457bf39 | 2009-11-03 21:52:36 +0100 | [diff] [blame] | 338 | if (rw == DDIR_WAIT) { |
| 339 | ipo->delay = offset; |
| 340 | } else { |
| 341 | ipo->offset = offset; |
| 342 | ipo->len = bytes; |
| 343 | if (bytes > td->o.max_bs[rw]) |
| 344 | td->o.max_bs[rw] = bytes; |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 345 | ipo->fileno = fileno; |
| 346 | ipo->file_action = file_action; |
| 347 | } |
Glen Ogilvie | 457bf39 | 2009-11-03 21:52:36 +0100 | [diff] [blame] | 348 | |
Jens Axboe | 691c8fb | 2008-03-07 14:26:26 +0100 | [diff] [blame] | 349 | queue_io_piece(td, ipo); |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 350 | } |
| 351 | |
| 352 | free(str); |
| 353 | free(act); |
| 354 | free(fname); |
| 355 | |
Jens Axboe | 4241ea8 | 2007-09-12 08:18:36 +0200 | [diff] [blame] | 356 | if (writes && read_only) { |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 357 | log_err("fio: <%s> skips replay of %d writes due to" |
| 358 | " read-only\n", td->o.name, writes); |
Jens Axboe | 4241ea8 | 2007-09-12 08:18:36 +0200 | [diff] [blame] | 359 | writes = 0; |
| 360 | } |
| 361 | |
Glen Ogilvie | 457bf39 | 2009-11-03 21:52:36 +0100 | [diff] [blame] | 362 | if (!reads && !writes && !waits) |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 363 | return 1; |
| 364 | else if (reads && !writes) |
| 365 | td->o.td_ddir = TD_DDIR_READ; |
| 366 | else if (!reads && writes) |
| 367 | td->o.td_ddir = TD_DDIR_WRITE; |
| 368 | else |
| 369 | td->o.td_ddir = TD_DDIR_RW; |
| 370 | |
| 371 | return 0; |
| 372 | } |
| 373 | |
| 374 | /* |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 375 | * open iolog, check version, and call appropriate parser |
| 376 | */ |
| 377 | static int init_iolog_read(struct thread_data *td) |
| 378 | { |
| 379 | char buffer[256], *p; |
| 380 | FILE *f; |
| 381 | int ret; |
| 382 | |
| 383 | f = fopen(td->o.read_iolog_file, "r"); |
| 384 | if (!f) { |
| 385 | perror("fopen read iolog"); |
| 386 | return 1; |
| 387 | } |
| 388 | |
| 389 | p = fgets(buffer, sizeof(buffer), f); |
| 390 | if (!p) { |
| 391 | td_verror(td, errno, "iolog read"); |
| 392 | log_err("fio: unable to read iolog\n"); |
| 393 | return 1; |
| 394 | } |
| 395 | |
| 396 | /* |
| 397 | * version 2 of the iolog stores a specific string as the |
| 398 | * first line, check for that |
| 399 | */ |
| 400 | if (!strncmp(iolog_ver2, buffer, strlen(iolog_ver2))) |
| 401 | ret = read_iolog2(td, f); |
| 402 | else { |
Jens Axboe | aec2de2 | 2008-04-24 12:44:42 +0200 | [diff] [blame] | 403 | log_err("fio: iolog version 1 is no longer supported\n"); |
| 404 | ret = 1; |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 405 | } |
| 406 | |
| 407 | fclose(f); |
| 408 | return ret; |
| 409 | } |
| 410 | |
| 411 | /* |
Jens Axboe | fb71fbd | 2006-10-20 09:15:46 +0200 | [diff] [blame] | 412 | * Setup a log for storing io patterns. |
| 413 | */ |
| 414 | static int init_iolog_write(struct thread_data *td) |
| 415 | { |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 416 | struct fio_file *ff; |
Jens Axboe | 076efc7 | 2006-10-27 11:24:25 +0200 | [diff] [blame] | 417 | FILE *f; |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 418 | unsigned int i; |
Jens Axboe | 733ed59 | 2007-04-25 14:24:12 +0200 | [diff] [blame] | 419 | |
Jens Axboe | c12f6da | 2008-11-20 09:13:04 +0100 | [diff] [blame] | 420 | f = fopen(td->o.write_iolog_file, "a"); |
Jens Axboe | fb71fbd | 2006-10-20 09:15:46 +0200 | [diff] [blame] | 421 | if (!f) { |
| 422 | perror("fopen write iolog"); |
| 423 | return 1; |
| 424 | } |
| 425 | |
| 426 | /* |
| 427 | * That's it for writing, setup a log buffer and we're done. |
| 428 | */ |
| 429 | td->iolog_f = f; |
| 430 | td->iolog_buf = malloc(8192); |
| 431 | setvbuf(f, td->iolog_buf, _IOFBF, 8192); |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 432 | |
| 433 | /* |
| 434 | * write our version line |
| 435 | */ |
| 436 | if (fprintf(f, "%s\n", iolog_ver2) < 0) { |
| 437 | perror("iolog init\n"); |
| 438 | return 1; |
| 439 | } |
| 440 | |
| 441 | /* |
| 442 | * add all known files |
| 443 | */ |
| 444 | for_each_file(td, ff, i) |
| 445 | log_file(td, ff, FIO_LOG_ADD_FILE); |
| 446 | |
Jens Axboe | fb71fbd | 2006-10-20 09:15:46 +0200 | [diff] [blame] | 447 | return 0; |
| 448 | } |
| 449 | |
| 450 | int init_iolog(struct thread_data *td) |
| 451 | { |
Jens Axboe | b4a6a59 | 2006-10-20 13:54:47 +0200 | [diff] [blame] | 452 | int ret = 0; |
Jens Axboe | fb71fbd | 2006-10-20 09:15:46 +0200 | [diff] [blame] | 453 | |
Jens Axboe | fb7b71a | 2007-05-15 08:44:04 +0200 | [diff] [blame] | 454 | if (td->o.read_iolog_file) { |
| 455 | /* |
| 456 | * Check if it's a blktrace file and load that if possible. |
| 457 | * Otherwise assume it's a normal log file and load that. |
| 458 | */ |
| 459 | if (is_blktrace(td->o.read_iolog_file)) |
| 460 | ret = load_blktrace(td, td->o.read_iolog_file); |
| 461 | else |
| 462 | ret = init_iolog_read(td); |
| 463 | } else if (td->o.write_iolog_file) |
Jens Axboe | b4a6a59 | 2006-10-20 13:54:47 +0200 | [diff] [blame] | 464 | ret = init_iolog_write(td); |
| 465 | |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 466 | return ret; |
Jens Axboe | fb71fbd | 2006-10-20 09:15:46 +0200 | [diff] [blame] | 467 | } |
| 468 | |
Jens Axboe | 8914a9d | 2006-06-07 11:14:56 +0200 | [diff] [blame] | 469 | void setup_log(struct io_log **log) |
| 470 | { |
| 471 | struct io_log *l = malloc(sizeof(*l)); |
| 472 | |
| 473 | l->nr_samples = 0; |
| 474 | l->max_samples = 1024; |
| 475 | l->log = malloc(l->max_samples * sizeof(struct io_sample)); |
| 476 | *log = l; |
| 477 | } |
| 478 | |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 479 | void __finish_log(struct io_log *log, const char *name) |
Jens Axboe | 8914a9d | 2006-06-07 11:14:56 +0200 | [diff] [blame] | 480 | { |
Jens Axboe | 8914a9d | 2006-06-07 11:14:56 +0200 | [diff] [blame] | 481 | unsigned int i; |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 482 | FILE *f; |
Jens Axboe | 8914a9d | 2006-06-07 11:14:56 +0200 | [diff] [blame] | 483 | |
Jens Axboe | c12f6da | 2008-11-20 09:13:04 +0100 | [diff] [blame] | 484 | f = fopen(name, "a"); |
Jens Axboe | 8914a9d | 2006-06-07 11:14:56 +0200 | [diff] [blame] | 485 | if (!f) { |
| 486 | perror("fopen log"); |
| 487 | return; |
| 488 | } |
| 489 | |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 490 | for (i = 0; i < log->nr_samples; i++) { |
Jens Axboe | 306ddc9 | 2009-05-18 13:08:12 +0200 | [diff] [blame] | 491 | fprintf(f, "%lu, %lu, %u, %u\n", log->log[i].time, |
| 492 | log->log[i].val, |
| 493 | log->log[i].ddir, |
| 494 | log->log[i].bs); |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 495 | } |
Jens Axboe | 8914a9d | 2006-06-07 11:14:56 +0200 | [diff] [blame] | 496 | |
| 497 | fclose(f); |
| 498 | free(log->log); |
| 499 | free(log); |
| 500 | } |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 501 | |
Jens Axboe | e3cedca | 2008-11-19 19:57:52 +0100 | [diff] [blame] | 502 | void finish_log_named(struct thread_data *td, struct io_log *log, |
| 503 | const char *prefix, const char *postfix) |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 504 | { |
Jens Axboe | 748b23a | 2008-05-07 14:28:22 +0200 | [diff] [blame] | 505 | char file_name[256], *p; |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 506 | |
Jens Axboe | e3cedca | 2008-11-19 19:57:52 +0100 | [diff] [blame] | 507 | snprintf(file_name, 200, "%s_%s.log", prefix, postfix); |
Jens Axboe | 748b23a | 2008-05-07 14:28:22 +0200 | [diff] [blame] | 508 | p = basename(file_name); |
| 509 | __finish_log(log, p); |
Jens Axboe | bb3884d | 2007-01-17 17:23:11 +1100 | [diff] [blame] | 510 | } |
Jens Axboe | e3cedca | 2008-11-19 19:57:52 +0100 | [diff] [blame] | 511 | |
| 512 | void finish_log(struct thread_data *td, struct io_log *log, const char *name) |
| 513 | { |
| 514 | finish_log_named(td, log, td->o.name, name); |
| 515 | } |