Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1 | #include <unistd.h> |
| 2 | #include <fcntl.h> |
| 3 | #include <string.h> |
| 4 | #include <signal.h> |
| 5 | #include <time.h> |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 6 | #include <assert.h> |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 7 | |
| 8 | #include "fio.h" |
| 9 | #include "os.h" |
| 10 | |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 11 | /* |
| 12 | * Change this define to play with the timeout handling |
| 13 | */ |
| 14 | #undef FIO_USE_TIMEOUT |
| 15 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 16 | struct io_completion_data { |
| 17 | int nr; /* input */ |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 18 | |
| 19 | int error; /* output */ |
| 20 | unsigned long bytes_done[2]; /* output */ |
| 21 | struct timeval time; /* output */ |
| 22 | }; |
| 23 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 24 | /* |
| 25 | * The ->file_map[] contains a map of blocks we have or have not done io |
| 26 | * to yet. Used to make sure we cover the entire range in a fair fashion. |
| 27 | */ |
| 28 | static int random_map_free(struct thread_data *td, struct fio_file *f, |
| 29 | unsigned long long block) |
| 30 | { |
| 31 | unsigned int idx = RAND_MAP_IDX(td, f, block); |
| 32 | unsigned int bit = RAND_MAP_BIT(td, f, block); |
| 33 | |
| 34 | return (f->file_map[idx] & (1UL << bit)) == 0; |
| 35 | } |
| 36 | |
| 37 | /* |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 38 | * Mark a given offset as used in the map. |
| 39 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 40 | static void mark_random_map(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 41 | { |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 42 | unsigned int min_bs = td->o.rw_min_bs; |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 43 | struct fio_file *f = io_u->file; |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 44 | unsigned long long block; |
| 45 | unsigned int blocks; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 46 | unsigned int nr_blocks; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 47 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 48 | block = io_u->offset / (unsigned long long) min_bs; |
| 49 | blocks = 0; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 50 | nr_blocks = (io_u->buflen + min_bs - 1) / min_bs; |
| 51 | |
| 52 | while (blocks < nr_blocks) { |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 53 | unsigned int idx, bit; |
| 54 | |
| 55 | if (!random_map_free(td, f, block)) |
| 56 | break; |
| 57 | |
| 58 | idx = RAND_MAP_IDX(td, f, block); |
| 59 | bit = RAND_MAP_BIT(td, f, block); |
| 60 | |
Jens Axboe | 0032bf9 | 2007-02-13 17:39:56 +0100 | [diff] [blame] | 61 | fio_assert(td, idx < f->num_maps); |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 62 | |
| 63 | f->file_map[idx] |= (1UL << bit); |
| 64 | block++; |
| 65 | blocks++; |
| 66 | } |
| 67 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 68 | if ((blocks * min_bs) < io_u->buflen) |
| 69 | io_u->buflen = blocks * min_bs; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 70 | } |
| 71 | |
| 72 | /* |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 73 | * Return the next free block in the map. |
| 74 | */ |
| 75 | static int get_next_free_block(struct thread_data *td, struct fio_file *f, |
| 76 | unsigned long long *b) |
| 77 | { |
| 78 | int i; |
| 79 | |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 80 | i = f->last_free_lookup; |
| 81 | *b = (i * BLOCKS_PER_MAP); |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 82 | while ((*b) * td->o.rw_min_bs < f->real_file_size) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 83 | if (f->file_map[i] != -1UL) { |
| 84 | *b += ffz(f->file_map[i]); |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 85 | f->last_free_lookup = i; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 86 | return 0; |
| 87 | } |
| 88 | |
| 89 | *b += BLOCKS_PER_MAP; |
| 90 | i++; |
| 91 | } |
| 92 | |
| 93 | return 1; |
| 94 | } |
| 95 | |
| 96 | /* |
| 97 | * For random io, generate a random new block and see if it's used. Repeat |
| 98 | * until we find a free one. For sequential io, just return the end of |
| 99 | * the last io issued. |
| 100 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 101 | static int get_next_offset(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 102 | { |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 103 | struct fio_file *f = io_u->file; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 104 | const int ddir = io_u->ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 105 | unsigned long long b, rb; |
| 106 | long r; |
| 107 | |
Jens Axboe | 413dd45 | 2007-02-23 09:26:09 +0100 | [diff] [blame] | 108 | if (td_random(td)) { |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 109 | unsigned long long max_blocks = f->file_size / td->o.min_bs[ddir]; |
Jens Axboe | e643357 | 2007-03-08 14:02:42 +0100 | [diff] [blame] | 110 | int loops = 5; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 111 | |
| 112 | do { |
| 113 | r = os_random_long(&td->random_state); |
Jens Axboe | 2393acb | 2007-03-14 09:15:42 +0100 | [diff] [blame] | 114 | if (!max_blocks) |
| 115 | b = 0; |
| 116 | else |
| 117 | b = ((max_blocks - 1) * r / (unsigned long long) (RAND_MAX+1.0)); |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 118 | if (td->o.norandommap) |
Jens Axboe | bb8895e | 2006-10-30 15:14:48 +0100 | [diff] [blame] | 119 | break; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 120 | rb = b + (f->file_offset / td->o.min_bs[ddir]); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 121 | loops--; |
| 122 | } while (!random_map_free(td, f, rb) && loops); |
| 123 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 124 | /* |
| 125 | * if we failed to retrieve a truly random offset within |
| 126 | * the loops assigned, see if there are free ones left at all |
| 127 | */ |
| 128 | if (!loops && get_next_free_block(td, f, &b)) |
| 129 | return 1; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 130 | } else |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 131 | b = f->last_pos / td->o.min_bs[ddir]; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 132 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 133 | io_u->offset = (b * td->o.min_bs[ddir]) + f->file_offset; |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 134 | if (io_u->offset >= f->real_file_size) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 135 | return 1; |
| 136 | |
| 137 | return 0; |
| 138 | } |
| 139 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 140 | static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 141 | { |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 142 | struct fio_file *f = io_u->file; |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 143 | const int ddir = io_u->ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 144 | unsigned int buflen; |
| 145 | long r; |
| 146 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 147 | if (td->o.min_bs[ddir] == td->o.max_bs[ddir]) |
| 148 | buflen = td->o.min_bs[ddir]; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 149 | else { |
| 150 | r = os_random_long(&td->bsrange_state); |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 151 | buflen = (unsigned int) (1 + (double) (td->o.max_bs[ddir] - 1) * r / (RAND_MAX + 1.0)); |
| 152 | if (!td->o.bs_unaligned) |
| 153 | buflen = (buflen + td->o.min_bs[ddir] - 1) & ~(td->o.min_bs[ddir] - 1); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 154 | } |
| 155 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 156 | while (buflen + io_u->offset > f->real_file_size) { |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 157 | if (buflen == td->o.min_bs[ddir]) { |
| 158 | if (!td->o.odirect) { |
Jens Axboe | 2393acb | 2007-03-14 09:15:42 +0100 | [diff] [blame] | 159 | assert(io_u->offset <= f->real_file_size); |
| 160 | buflen = f->real_file_size - io_u->offset; |
| 161 | return buflen; |
| 162 | } |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 163 | return 0; |
Jens Axboe | 2393acb | 2007-03-14 09:15:42 +0100 | [diff] [blame] | 164 | } |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 165 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 166 | buflen = td->o.min_bs[ddir]; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 167 | } |
| 168 | |
| 169 | return buflen; |
| 170 | } |
| 171 | |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame^] | 172 | static void set_rwmix_bytes(struct thread_data *td) |
| 173 | { |
| 174 | unsigned long long rbytes; |
| 175 | unsigned int diff; |
| 176 | |
| 177 | /* |
| 178 | * we do time or byte based switch. this is needed because |
| 179 | * buffered writes may issue a lot quicker than they complete, |
| 180 | * whereas reads do not. |
| 181 | */ |
| 182 | rbytes = td->io_bytes[td->rwmix_ddir] - td->rwmix_bytes; |
| 183 | diff = td->o.rwmixread; |
| 184 | if (td->rwmix_ddir == DDIR_WRITE) |
| 185 | diff = 100 - diff; |
| 186 | |
| 187 | td->rwmix_bytes = td->io_bytes[td->rwmix_ddir] + (rbytes * (100 - diff)) / diff; |
| 188 | } |
| 189 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 190 | /* |
| 191 | * Return the data direction for the next io_u. If the job is a |
| 192 | * mixed read/write workload, check the rwmix cycle and switch if |
| 193 | * necessary. |
| 194 | */ |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 195 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 196 | { |
| 197 | if (td_rw(td)) { |
| 198 | struct timeval now; |
| 199 | unsigned long elapsed; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame^] | 200 | unsigned int cycle; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 201 | |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 202 | fio_gettime(&now, NULL); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 203 | elapsed = mtime_since_now(&td->rwmix_switch); |
| 204 | |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame^] | 205 | cycle = td->o.rwmixcycle; |
| 206 | if (!td->rwmix_bytes) |
| 207 | cycle /= 10; |
| 208 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 209 | /* |
| 210 | * Check if it's time to seed a new data direction. |
| 211 | */ |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame^] | 212 | if (elapsed >= cycle && |
| 213 | td->io_bytes[td->rwmix_ddir] >= td->rwmix_bytes) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 214 | unsigned int v; |
| 215 | long r; |
| 216 | |
| 217 | r = os_random_long(&td->rwmix_state); |
| 218 | v = 1 + (int) (100.0 * (r / (RAND_MAX + 1.0))); |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame^] | 219 | if (v < td->o.rwmixread) { |
| 220 | if (td->rwmix_ddir != DDIR_READ) |
| 221 | set_rwmix_bytes(td); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 222 | td->rwmix_ddir = DDIR_READ; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame^] | 223 | } else { |
| 224 | if (td->rwmix_ddir != DDIR_WRITE) |
| 225 | set_rwmix_bytes(td); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 226 | td->rwmix_ddir = DDIR_WRITE; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame^] | 227 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 228 | memcpy(&td->rwmix_switch, &now, sizeof(now)); |
| 229 | } |
| 230 | return td->rwmix_ddir; |
| 231 | } else if (td_read(td)) |
| 232 | return DDIR_READ; |
| 233 | else |
| 234 | return DDIR_WRITE; |
| 235 | } |
| 236 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 237 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
| 238 | { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 239 | assert((io_u->flags & IO_U_F_FREE) == 0); |
| 240 | io_u->flags |= IO_U_F_FREE; |
| 241 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 242 | io_u->file = NULL; |
| 243 | list_del(&io_u->list); |
| 244 | list_add(&io_u->list, &td->io_u_freelist); |
| 245 | td->cur_depth--; |
| 246 | } |
| 247 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 248 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
| 249 | { |
| 250 | struct io_u *__io_u = *io_u; |
| 251 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 252 | __io_u->flags |= IO_U_F_FREE; |
| 253 | __io_u->flags &= ~IO_U_F_FLIGHT; |
| 254 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 255 | list_del(&__io_u->list); |
| 256 | list_add_tail(&__io_u->list, &td->io_u_requeues); |
| 257 | td->cur_depth--; |
| 258 | *io_u = NULL; |
| 259 | } |
| 260 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 261 | static int fill_io_u(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 262 | { |
| 263 | /* |
| 264 | * If using an iolog, grab next piece if any available. |
| 265 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 266 | if (td->o.read_iolog) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 267 | return read_iolog_get(td, io_u); |
| 268 | |
| 269 | /* |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 270 | * see if it's time to sync |
| 271 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 272 | if (td->o.fsync_blocks && |
| 273 | !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) && |
| 274 | td->io_issues[DDIR_WRITE] && should_fsync(td)) { |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 275 | io_u->ddir = DDIR_SYNC; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 276 | return 0; |
| 277 | } |
| 278 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 279 | io_u->ddir = get_rw_ddir(td); |
| 280 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 281 | /* |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 282 | * No log, let the seq/rand engine retrieve the next buflen and |
| 283 | * position. |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 284 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 285 | if (get_next_offset(td, io_u)) |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 286 | return 1; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 287 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 288 | io_u->buflen = get_next_buflen(td, io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 289 | if (!io_u->buflen) |
| 290 | return 1; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 291 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 292 | /* |
| 293 | * mark entry before potentially trimming io_u |
| 294 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 295 | if (!td->o.read_iolog && td_random(td) && !td->o.norandommap) |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 296 | mark_random_map(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 297 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 298 | /* |
| 299 | * If using a write iolog, store this entry. |
| 300 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 301 | if (td->o.write_iolog_file) |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 302 | write_iolog_put(td, io_u); |
| 303 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 304 | return 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 305 | } |
| 306 | |
Jens Axboe | b360506 | 2007-03-12 14:19:47 +0100 | [diff] [blame] | 307 | void io_u_mark_depth(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 308 | { |
| 309 | int index = 0; |
| 310 | |
Jens Axboe | b360506 | 2007-03-12 14:19:47 +0100 | [diff] [blame] | 311 | if (io_u->ddir == DDIR_SYNC) |
| 312 | return; |
| 313 | |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 314 | switch (td->cur_depth) { |
| 315 | default: |
| 316 | index++; |
| 317 | case 32 ... 63: |
| 318 | index++; |
| 319 | case 16 ... 31: |
| 320 | index++; |
| 321 | case 8 ... 15: |
| 322 | index++; |
| 323 | case 4 ... 7: |
| 324 | index++; |
| 325 | case 2 ... 3: |
| 326 | index++; |
| 327 | case 1: |
| 328 | break; |
| 329 | } |
| 330 | |
Jens Axboe | 756867b | 2007-03-06 15:19:24 +0100 | [diff] [blame] | 331 | td->ts.io_u_map[index]++; |
Jens Axboe | b360506 | 2007-03-12 14:19:47 +0100 | [diff] [blame] | 332 | td->ts.total_io_u[io_u->ddir]++; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 333 | } |
| 334 | |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 335 | static void io_u_mark_latency(struct thread_data *td, unsigned long msec) |
| 336 | { |
| 337 | int index = 0; |
| 338 | |
| 339 | switch (msec) { |
| 340 | default: |
| 341 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 342 | case 1000 ... 1999: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 343 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 344 | case 750 ... 999: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 345 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 346 | case 500 ... 749: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 347 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 348 | case 250 ... 499: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 349 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 350 | case 100 ... 249: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 351 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 352 | case 50 ... 99: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 353 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 354 | case 20 ... 49: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 355 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 356 | case 10 ... 19: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 357 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 358 | case 4 ... 9: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 359 | index++; |
| 360 | case 2 ... 3: |
| 361 | index++; |
| 362 | case 0 ... 1: |
| 363 | break; |
| 364 | } |
| 365 | |
Jens Axboe | 756867b | 2007-03-06 15:19:24 +0100 | [diff] [blame] | 366 | td->ts.io_u_lat[index]++; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 367 | } |
| 368 | |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 369 | /* |
| 370 | * Get next file to service by choosing one at random |
| 371 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 372 | static struct fio_file *get_next_file_rand(struct thread_data *td, int goodf, |
| 373 | int badf) |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 374 | { |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 375 | struct fio_file *f; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 376 | int fno; |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 377 | |
| 378 | do { |
Jens Axboe | 7c83c08 | 2007-03-01 10:04:15 +0100 | [diff] [blame] | 379 | long r = os_random_long(&td->next_file_state); |
| 380 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 381 | fno = (unsigned int) ((double) td->o.nr_files * (r / (RAND_MAX + 1.0))); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 382 | f = &td->files[fno]; |
| 383 | |
| 384 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 385 | return f; |
| 386 | } while (1); |
| 387 | } |
| 388 | |
| 389 | /* |
| 390 | * Get next file to service by doing round robin between all available ones |
| 391 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 392 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
| 393 | int badf) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 394 | { |
| 395 | unsigned int old_next_file = td->next_file; |
| 396 | struct fio_file *f; |
| 397 | |
| 398 | do { |
| 399 | f = &td->files[td->next_file]; |
| 400 | |
| 401 | td->next_file++; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 402 | if (td->next_file >= td->o.nr_files) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 403 | td->next_file = 0; |
| 404 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 405 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 406 | break; |
| 407 | |
| 408 | f = NULL; |
| 409 | } while (td->next_file != old_next_file); |
| 410 | |
| 411 | return f; |
| 412 | } |
| 413 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 414 | static struct fio_file *get_next_file(struct thread_data *td) |
| 415 | { |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 416 | struct fio_file *f; |
| 417 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 418 | assert(td->o.nr_files <= td->files_index); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 419 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 420 | if (!td->nr_open_files) |
| 421 | return NULL; |
| 422 | |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 423 | f = td->file_service_file; |
Jens Axboe | f11bd94 | 2007-03-13 10:16:34 +0100 | [diff] [blame] | 424 | if (f && (f->flags & FIO_FILE_OPEN) && td->file_service_left--) |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 425 | return f; |
| 426 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 427 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 428 | f = get_next_file_rr(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 429 | else |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 430 | f = get_next_file_rand(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 431 | |
| 432 | td->file_service_file = f; |
| 433 | td->file_service_left = td->file_service_nr - 1; |
| 434 | return f; |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 435 | } |
| 436 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 437 | static struct fio_file *find_next_new_file(struct thread_data *td) |
| 438 | { |
| 439 | struct fio_file *f; |
| 440 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 441 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 442 | f = get_next_file_rr(td, 0, FIO_FILE_OPEN); |
| 443 | else |
| 444 | f = get_next_file_rand(td, 0, FIO_FILE_OPEN); |
| 445 | |
| 446 | return f; |
| 447 | } |
| 448 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 449 | struct io_u *__get_io_u(struct thread_data *td) |
| 450 | { |
| 451 | struct io_u *io_u = NULL; |
| 452 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 453 | if (!list_empty(&td->io_u_requeues)) |
| 454 | io_u = list_entry(td->io_u_requeues.next, struct io_u, list); |
| 455 | else if (!queue_full(td)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 456 | io_u = list_entry(td->io_u_freelist.next, struct io_u, list); |
| 457 | |
Jens Axboe | 6040dab | 2006-10-24 19:38:15 +0200 | [diff] [blame] | 458 | io_u->buflen = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 459 | io_u->resid = 0; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 460 | io_u->file = NULL; |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 461 | io_u->end_io = NULL; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 462 | } |
| 463 | |
| 464 | if (io_u) { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 465 | assert(io_u->flags & IO_U_F_FREE); |
| 466 | io_u->flags &= ~IO_U_F_FREE; |
| 467 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 468 | io_u->error = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 469 | list_del(&io_u->list); |
| 470 | list_add(&io_u->list, &td->io_u_busylist); |
| 471 | td->cur_depth++; |
| 472 | } |
| 473 | |
| 474 | return io_u; |
| 475 | } |
| 476 | |
| 477 | /* |
| 478 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, |
| 479 | * etc. The returned io_u is fully ready to be prepped and submitted. |
| 480 | */ |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 481 | struct io_u *get_io_u(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 482 | { |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 483 | struct fio_file *f; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 484 | struct io_u *io_u; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 485 | int ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 486 | |
| 487 | io_u = __get_io_u(td); |
| 488 | if (!io_u) |
| 489 | return NULL; |
| 490 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 491 | /* |
| 492 | * from a requeue, io_u already setup |
| 493 | */ |
| 494 | if (io_u->file) |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 495 | goto out; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 496 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 497 | do { |
| 498 | f = get_next_file(td); |
| 499 | if (!f) { |
| 500 | put_io_u(td, io_u); |
| 501 | return NULL; |
| 502 | } |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 503 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 504 | set_file: |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 505 | io_u->file = f; |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 506 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 507 | if (!fill_io_u(td, io_u)) |
| 508 | break; |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 509 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 510 | /* |
| 511 | * No more to do for this file, close it |
| 512 | */ |
| 513 | io_u->file = NULL; |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 514 | td_io_close_file(td, f); |
| 515 | |
| 516 | /* |
| 517 | * probably not the right place to do this, but see |
| 518 | * if we need to open a new file |
| 519 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 520 | if (td->nr_open_files < td->o.open_files && |
| 521 | td->o.open_files != td->o.nr_files) { |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 522 | f = find_next_new_file(td); |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 523 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 524 | if (!f || (ret = td_io_open_file(td, f))) { |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 525 | put_io_u(td, io_u); |
Jens Axboe | e291dc1 | 2007-03-13 21:50:34 +0100 | [diff] [blame] | 526 | return NULL; |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 527 | } |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 528 | goto set_file; |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 529 | } |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 530 | } while (1); |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 531 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 532 | if (td->zone_bytes >= td->o.zone_size) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 533 | td->zone_bytes = 0; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 534 | f->last_pos += td->o.zone_skip; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 535 | } |
| 536 | |
Jens Axboe | ee88470 | 2006-12-20 10:58:07 +0100 | [diff] [blame] | 537 | if (io_u->buflen + io_u->offset > f->real_file_size) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 538 | if (td->io_ops->flags & FIO_RAWIO) { |
| 539 | put_io_u(td, io_u); |
| 540 | return NULL; |
| 541 | } |
| 542 | |
Jens Axboe | ee88470 | 2006-12-20 10:58:07 +0100 | [diff] [blame] | 543 | io_u->buflen = f->real_file_size - io_u->offset; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 544 | } |
| 545 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 546 | if (io_u->ddir != DDIR_SYNC) { |
| 547 | if (!io_u->buflen) { |
| 548 | put_io_u(td, io_u); |
| 549 | return NULL; |
| 550 | } |
| 551 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 552 | f->last_pos = io_u->offset + io_u->buflen; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 553 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 554 | if (td->o.verify != VERIFY_NONE) |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 555 | populate_verify_io_u(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 556 | } |
| 557 | |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 558 | /* |
| 559 | * Set io data pointers. |
| 560 | */ |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 561 | out: |
Jens Axboe | cec6b55 | 2007-02-06 20:15:38 +0100 | [diff] [blame] | 562 | io_u->xfer_buf = io_u->buf; |
| 563 | io_u->xfer_buflen = io_u->buflen; |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 564 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 565 | if (td_io_prep(td, io_u)) { |
| 566 | put_io_u(td, io_u); |
| 567 | return NULL; |
| 568 | } |
| 569 | |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 570 | fio_gettime(&io_u->start_time, NULL); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 571 | return io_u; |
| 572 | } |
| 573 | |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 574 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
| 575 | { |
| 576 | const char *msg[] = { "read", "write", "sync" }; |
| 577 | |
| 578 | log_err("fio: io_u error"); |
| 579 | |
| 580 | if (io_u->file) |
| 581 | log_err(" on file %s", io_u->file->file_name); |
| 582 | |
| 583 | log_err(": %s\n", strerror(io_u->error)); |
| 584 | |
| 585 | log_err(" %s offset=%llu, buflen=%lu\n", msg[io_u->ddir], io_u->offset, io_u->xfer_buflen); |
| 586 | |
| 587 | if (!td->error) |
| 588 | td_verror(td, io_u->error, "io_u error"); |
| 589 | } |
| 590 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 591 | static void io_completed(struct thread_data *td, struct io_u *io_u, |
| 592 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 593 | { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 594 | unsigned long msec; |
| 595 | |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 596 | assert(io_u->flags & IO_U_F_FLIGHT); |
| 597 | io_u->flags &= ~IO_U_F_FLIGHT; |
| 598 | |
Jens Axboe | 0ad920e | 2007-03-13 11:06:45 +0100 | [diff] [blame] | 599 | put_file(td, io_u->file); |
| 600 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 601 | if (io_u->ddir == DDIR_SYNC) { |
| 602 | td->last_was_sync = 1; |
| 603 | return; |
| 604 | } |
| 605 | |
| 606 | td->last_was_sync = 0; |
| 607 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 608 | if (!io_u->error) { |
| 609 | unsigned int bytes = io_u->buflen - io_u->resid; |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 610 | const enum fio_ddir idx = io_u->ddir; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 611 | int ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 612 | |
| 613 | td->io_blocks[idx]++; |
| 614 | td->io_bytes[idx] += bytes; |
| 615 | td->zone_bytes += bytes; |
| 616 | td->this_io_bytes[idx] += bytes; |
| 617 | |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 618 | io_u->file->last_completed_pos = io_u->offset + io_u->buflen; |
| 619 | |
| 620 | msec = mtime_since(&io_u->issue_time, &icd->time); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 621 | |
| 622 | add_clat_sample(td, idx, msec); |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 623 | add_bw_sample(td, idx, &icd->time); |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 624 | io_u_mark_latency(td, msec); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 625 | |
| 626 | if ((td_rw(td) || td_write(td)) && idx == DDIR_WRITE) |
| 627 | log_io_piece(td, io_u); |
| 628 | |
| 629 | icd->bytes_done[idx] += bytes; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 630 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 631 | if (io_u->end_io) { |
| 632 | ret = io_u->end_io(io_u); |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 633 | if (ret && !icd->error) |
| 634 | icd->error = ret; |
| 635 | } |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 636 | } else { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 637 | icd->error = io_u->error; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 638 | io_u_log_error(td, io_u); |
| 639 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 640 | } |
| 641 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 642 | static void init_icd(struct io_completion_data *icd, int nr) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 643 | { |
| 644 | fio_gettime(&icd->time, NULL); |
| 645 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 646 | icd->nr = nr; |
| 647 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 648 | icd->error = 0; |
| 649 | icd->bytes_done[0] = icd->bytes_done[1] = 0; |
| 650 | } |
| 651 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 652 | static void ios_completed(struct thread_data *td, |
| 653 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 654 | { |
| 655 | struct io_u *io_u; |
| 656 | int i; |
| 657 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 658 | for (i = 0; i < icd->nr; i++) { |
| 659 | io_u = td->io_ops->event(td, i); |
| 660 | |
| 661 | io_completed(td, io_u, icd); |
| 662 | put_io_u(td, io_u); |
| 663 | } |
| 664 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 665 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 666 | /* |
| 667 | * Complete a single io_u for the sync engines. |
| 668 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 669 | long io_u_sync_complete(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 670 | { |
| 671 | struct io_completion_data icd; |
| 672 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 673 | init_icd(&icd, 1); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 674 | io_completed(td, io_u, &icd); |
| 675 | put_io_u(td, io_u); |
| 676 | |
| 677 | if (!icd.error) |
| 678 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 679 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 680 | td_verror(td, icd.error, "io_u_sync_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 681 | return -1; |
| 682 | } |
| 683 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 684 | /* |
| 685 | * Called to complete min_events number of io for the async engines. |
| 686 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 687 | long io_u_queued_complete(struct thread_data *td, int min_events) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 688 | { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 689 | struct io_completion_data icd; |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 690 | struct timespec *tvp = NULL; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 691 | int ret; |
| 692 | |
Jens Axboe | face81b | 2007-02-26 10:40:03 +0100 | [diff] [blame] | 693 | if (!min_events) { |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 694 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
| 695 | |
| 696 | tvp = &ts; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 697 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 698 | |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 699 | ret = td_io_getevents(td, min_events, td->cur_depth, tvp); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 700 | if (ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 701 | td_verror(td, -ret, "td_io_getevents"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 702 | return ret; |
| 703 | } else if (!ret) |
| 704 | return ret; |
| 705 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 706 | init_icd(&icd, ret); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 707 | ios_completed(td, &icd); |
| 708 | if (!icd.error) |
| 709 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 710 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 711 | td_verror(td, icd.error, "io_u_queued_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 712 | return -1; |
| 713 | } |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 714 | |
| 715 | /* |
| 716 | * Call when io_u is really queued, to update the submission latency. |
| 717 | */ |
| 718 | void io_u_queued(struct thread_data *td, struct io_u *io_u) |
| 719 | { |
| 720 | unsigned long slat_time; |
| 721 | |
| 722 | slat_time = mtime_since(&io_u->start_time, &io_u->issue_time); |
| 723 | add_slat_sample(td, io_u->ddir, slat_time); |
| 724 | } |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 725 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 726 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 727 | void io_u_set_timeout(struct thread_data *td) |
| 728 | { |
| 729 | assert(td->cur_depth); |
| 730 | |
| 731 | td->timer.it_interval.tv_sec = 0; |
| 732 | td->timer.it_interval.tv_usec = 0; |
| 733 | td->timer.it_value.tv_sec = IO_U_TIMEOUT + IO_U_TIMEOUT_INC; |
| 734 | td->timer.it_value.tv_usec = 0; |
| 735 | setitimer(ITIMER_REAL, &td->timer, NULL); |
| 736 | fio_gettime(&td->timeout_end, NULL); |
| 737 | } |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 738 | |
| 739 | static void io_u_dump(struct io_u *io_u) |
| 740 | { |
| 741 | unsigned long t_start = mtime_since_now(&io_u->start_time); |
| 742 | unsigned long t_issue = mtime_since_now(&io_u->issue_time); |
| 743 | |
| 744 | log_err("io_u=%p, t_start=%lu, t_issue=%lu\n", io_u, t_start, t_issue); |
| 745 | log_err(" buf=%p/%p, len=%lu/%lu, offset=%llu\n", io_u->buf, io_u->xfer_buf, io_u->buflen, io_u->xfer_buflen, io_u->offset); |
| 746 | log_err(" ddir=%d, fname=%s\n", io_u->ddir, io_u->file->file_name); |
| 747 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 748 | #else |
| 749 | void io_u_set_timeout(struct thread_data fio_unused *td) |
| 750 | { |
| 751 | } |
| 752 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 753 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 754 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 755 | static void io_u_timeout_handler(int fio_unused sig) |
| 756 | { |
| 757 | struct thread_data *td, *__td; |
| 758 | pid_t pid = getpid(); |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 759 | struct list_head *entry; |
| 760 | struct io_u *io_u; |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 761 | int i; |
| 762 | |
| 763 | log_err("fio: io_u timeout\n"); |
| 764 | |
| 765 | /* |
| 766 | * TLS would be nice... |
| 767 | */ |
| 768 | td = NULL; |
| 769 | for_each_td(__td, i) { |
| 770 | if (__td->pid == pid) { |
| 771 | td = __td; |
| 772 | break; |
| 773 | } |
| 774 | } |
| 775 | |
| 776 | if (!td) { |
| 777 | log_err("fio: io_u timeout, can't find job\n"); |
| 778 | exit(1); |
| 779 | } |
| 780 | |
| 781 | if (!td->cur_depth) { |
| 782 | log_err("fio: timeout without pending work?\n"); |
| 783 | return; |
| 784 | } |
| 785 | |
Jens Axboe | 15506d0 | 2007-03-15 15:04:43 +0100 | [diff] [blame] | 786 | log_err("fio: io_u timeout: job=%s, pid=%d\n", td->o.name, td->pid); |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 787 | |
| 788 | list_for_each(entry, &td->io_u_busylist) { |
| 789 | io_u = list_entry(entry, struct io_u, list); |
| 790 | |
| 791 | io_u_dump(io_u); |
| 792 | } |
| 793 | |
| 794 | td_verror(td, ETIMEDOUT, "io_u timeout"); |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 795 | exit(1); |
| 796 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 797 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 798 | |
| 799 | void io_u_init_timeout(void) |
| 800 | { |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 801 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 802 | signal(SIGALRM, io_u_timeout_handler); |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 803 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 804 | } |