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 | |
Jens Axboe | 1e3d53a | 2007-03-22 19:01:48 +0100 | [diff] [blame^] | 55 | /* |
| 56 | * If we have a mixed random workload, we may |
| 57 | * encounter blocks we already did IO to. |
| 58 | */ |
Jens Axboe | 211097b | 2007-03-22 18:56:45 +0100 | [diff] [blame] | 59 | if (!td->o.ddir_nr && !random_map_free(td, f, block)) |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 60 | break; |
| 61 | |
| 62 | idx = RAND_MAP_IDX(td, f, block); |
| 63 | bit = RAND_MAP_BIT(td, f, block); |
| 64 | |
Jens Axboe | 0032bf9 | 2007-02-13 17:39:56 +0100 | [diff] [blame] | 65 | fio_assert(td, idx < f->num_maps); |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 66 | |
| 67 | f->file_map[idx] |= (1UL << bit); |
| 68 | block++; |
| 69 | blocks++; |
| 70 | } |
| 71 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 72 | if ((blocks * min_bs) < io_u->buflen) |
| 73 | io_u->buflen = blocks * min_bs; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 74 | } |
| 75 | |
| 76 | /* |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 77 | * Return the next free block in the map. |
| 78 | */ |
| 79 | static int get_next_free_block(struct thread_data *td, struct fio_file *f, |
| 80 | unsigned long long *b) |
| 81 | { |
| 82 | int i; |
| 83 | |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 84 | i = f->last_free_lookup; |
| 85 | *b = (i * BLOCKS_PER_MAP); |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 86 | while ((*b) * td->o.rw_min_bs < f->real_file_size) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 87 | if (f->file_map[i] != -1UL) { |
| 88 | *b += ffz(f->file_map[i]); |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 89 | f->last_free_lookup = i; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 90 | return 0; |
| 91 | } |
| 92 | |
| 93 | *b += BLOCKS_PER_MAP; |
| 94 | i++; |
| 95 | } |
| 96 | |
| 97 | return 1; |
| 98 | } |
| 99 | |
| 100 | /* |
| 101 | * For random io, generate a random new block and see if it's used. Repeat |
| 102 | * until we find a free one. For sequential io, just return the end of |
| 103 | * the last io issued. |
| 104 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 105 | 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] | 106 | { |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 107 | struct fio_file *f = io_u->file; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 108 | const int ddir = io_u->ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 109 | unsigned long long b, rb; |
| 110 | long r; |
| 111 | |
Jens Axboe | 413dd45 | 2007-02-23 09:26:09 +0100 | [diff] [blame] | 112 | if (td_random(td)) { |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 113 | 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] | 114 | int loops = 5; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 115 | |
Jens Axboe | 211097b | 2007-03-22 18:56:45 +0100 | [diff] [blame] | 116 | if (td->o.ddir_nr) { |
Jens Axboe | 1e3d53a | 2007-03-22 19:01:48 +0100 | [diff] [blame^] | 117 | if (!--td->ddir_nr) |
Jens Axboe | 211097b | 2007-03-22 18:56:45 +0100 | [diff] [blame] | 118 | td->ddir_nr = td->o.ddir_nr; |
Jens Axboe | 1e3d53a | 2007-03-22 19:01:48 +0100 | [diff] [blame^] | 119 | else { |
Jens Axboe | 211097b | 2007-03-22 18:56:45 +0100 | [diff] [blame] | 120 | b = f->last_pos / td->o.min_bs[ddir]; |
| 121 | goto out; |
Jens Axboe | 1e3d53a | 2007-03-22 19:01:48 +0100 | [diff] [blame^] | 122 | } |
Jens Axboe | 211097b | 2007-03-22 18:56:45 +0100 | [diff] [blame] | 123 | } |
| 124 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 125 | do { |
| 126 | r = os_random_long(&td->random_state); |
Jens Axboe | 2393acb | 2007-03-14 09:15:42 +0100 | [diff] [blame] | 127 | if (!max_blocks) |
| 128 | b = 0; |
| 129 | else |
| 130 | b = ((max_blocks - 1) * r / (unsigned long long) (RAND_MAX+1.0)); |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 131 | if (td->o.norandommap) |
Jens Axboe | bb8895e | 2006-10-30 15:14:48 +0100 | [diff] [blame] | 132 | break; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 133 | rb = b + (f->file_offset / td->o.min_bs[ddir]); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 134 | loops--; |
| 135 | } while (!random_map_free(td, f, rb) && loops); |
| 136 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 137 | /* |
| 138 | * if we failed to retrieve a truly random offset within |
| 139 | * the loops assigned, see if there are free ones left at all |
| 140 | */ |
| 141 | if (!loops && get_next_free_block(td, f, &b)) |
| 142 | return 1; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 143 | } else |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 144 | b = f->last_pos / td->o.min_bs[ddir]; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 145 | |
Jens Axboe | 211097b | 2007-03-22 18:56:45 +0100 | [diff] [blame] | 146 | out: |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 147 | io_u->offset = (b * td->o.min_bs[ddir]) + f->file_offset; |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 148 | if (io_u->offset >= f->real_file_size) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 149 | return 1; |
| 150 | |
| 151 | return 0; |
| 152 | } |
| 153 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 154 | 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] | 155 | { |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 156 | struct fio_file *f = io_u->file; |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 157 | const int ddir = io_u->ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 158 | unsigned int buflen; |
| 159 | long r; |
| 160 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 161 | if (td->o.min_bs[ddir] == td->o.max_bs[ddir]) |
| 162 | buflen = td->o.min_bs[ddir]; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 163 | else { |
| 164 | r = os_random_long(&td->bsrange_state); |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 165 | buflen = (unsigned int) (1 + (double) (td->o.max_bs[ddir] - 1) * r / (RAND_MAX + 1.0)); |
| 166 | if (!td->o.bs_unaligned) |
| 167 | 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] | 168 | } |
| 169 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 170 | while (buflen + io_u->offset > f->real_file_size) { |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 171 | if (buflen == td->o.min_bs[ddir]) { |
| 172 | if (!td->o.odirect) { |
Jens Axboe | 2393acb | 2007-03-14 09:15:42 +0100 | [diff] [blame] | 173 | assert(io_u->offset <= f->real_file_size); |
| 174 | buflen = f->real_file_size - io_u->offset; |
| 175 | return buflen; |
| 176 | } |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 177 | return 0; |
Jens Axboe | 2393acb | 2007-03-14 09:15:42 +0100 | [diff] [blame] | 178 | } |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 179 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 180 | buflen = td->o.min_bs[ddir]; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 181 | } |
| 182 | |
| 183 | return buflen; |
| 184 | } |
| 185 | |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 186 | static void set_rwmix_bytes(struct thread_data *td) |
| 187 | { |
| 188 | unsigned long long rbytes; |
| 189 | unsigned int diff; |
| 190 | |
| 191 | /* |
| 192 | * we do time or byte based switch. this is needed because |
| 193 | * buffered writes may issue a lot quicker than they complete, |
| 194 | * whereas reads do not. |
| 195 | */ |
| 196 | rbytes = td->io_bytes[td->rwmix_ddir] - td->rwmix_bytes; |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 197 | diff = td->o.rwmix[td->rwmix_ddir ^ 1]; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 198 | |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 199 | td->rwmix_bytes = td->io_bytes[td->rwmix_ddir] + (rbytes * ((100 - diff)) / diff); |
| 200 | } |
| 201 | |
| 202 | static inline enum fio_ddir get_rand_ddir(struct thread_data *td) |
| 203 | { |
| 204 | unsigned int v; |
| 205 | long r; |
| 206 | |
| 207 | r = os_random_long(&td->rwmix_state); |
| 208 | v = 1 + (int) (100.0 * (r / (RAND_MAX + 1.0))); |
| 209 | if (v < td->o.rwmix[DDIR_READ]) |
| 210 | return DDIR_READ; |
| 211 | |
| 212 | return DDIR_WRITE; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 213 | } |
| 214 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 215 | /* |
| 216 | * Return the data direction for the next io_u. If the job is a |
| 217 | * mixed read/write workload, check the rwmix cycle and switch if |
| 218 | * necessary. |
| 219 | */ |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 220 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 221 | { |
| 222 | if (td_rw(td)) { |
| 223 | struct timeval now; |
| 224 | unsigned long elapsed; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 225 | unsigned int cycle; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 226 | |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 227 | fio_gettime(&now, NULL); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 228 | elapsed = mtime_since_now(&td->rwmix_switch); |
| 229 | |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 230 | /* |
| 231 | * if this is the first cycle, make it shorter |
| 232 | */ |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 233 | cycle = td->o.rwmixcycle; |
| 234 | if (!td->rwmix_bytes) |
| 235 | cycle /= 10; |
| 236 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 237 | /* |
| 238 | * Check if it's time to seed a new data direction. |
| 239 | */ |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 240 | if (elapsed >= cycle || |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 241 | td->io_bytes[td->rwmix_ddir] >= td->rwmix_bytes) { |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 242 | unsigned long long max_bytes; |
| 243 | enum fio_ddir ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 244 | |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 245 | /* |
| 246 | * Put a top limit on how many bytes we do for |
| 247 | * one data direction, to avoid overflowing the |
| 248 | * ranges too much |
| 249 | */ |
| 250 | ddir = get_rand_ddir(td); |
| 251 | max_bytes = td->this_io_bytes[ddir]; |
Jens Axboe | 38d77ca | 2007-03-21 14:20:20 +0100 | [diff] [blame] | 252 | if (max_bytes >= (td->io_size * td->o.rwmix[ddir] / 100)) { |
| 253 | if (!td->rw_end_set[ddir]) { |
| 254 | td->rw_end_set[ddir] = 1; |
| 255 | memcpy(&td->rw_end[ddir], &now, sizeof(now)); |
| 256 | } |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 257 | ddir ^= 1; |
Jens Axboe | 38d77ca | 2007-03-21 14:20:20 +0100 | [diff] [blame] | 258 | } |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 259 | |
| 260 | if (ddir != td->rwmix_ddir) |
| 261 | set_rwmix_bytes(td); |
| 262 | |
| 263 | td->rwmix_ddir = ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 264 | memcpy(&td->rwmix_switch, &now, sizeof(now)); |
| 265 | } |
| 266 | return td->rwmix_ddir; |
| 267 | } else if (td_read(td)) |
| 268 | return DDIR_READ; |
| 269 | else |
| 270 | return DDIR_WRITE; |
| 271 | } |
| 272 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 273 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
| 274 | { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 275 | assert((io_u->flags & IO_U_F_FREE) == 0); |
| 276 | io_u->flags |= IO_U_F_FREE; |
| 277 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 278 | io_u->file = NULL; |
| 279 | list_del(&io_u->list); |
| 280 | list_add(&io_u->list, &td->io_u_freelist); |
| 281 | td->cur_depth--; |
| 282 | } |
| 283 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 284 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
| 285 | { |
| 286 | struct io_u *__io_u = *io_u; |
| 287 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 288 | __io_u->flags |= IO_U_F_FREE; |
| 289 | __io_u->flags &= ~IO_U_F_FLIGHT; |
| 290 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 291 | list_del(&__io_u->list); |
| 292 | list_add_tail(&__io_u->list, &td->io_u_requeues); |
| 293 | td->cur_depth--; |
| 294 | *io_u = NULL; |
| 295 | } |
| 296 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 297 | 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] | 298 | { |
| 299 | /* |
| 300 | * If using an iolog, grab next piece if any available. |
| 301 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 302 | if (td->o.read_iolog) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 303 | return read_iolog_get(td, io_u); |
| 304 | |
| 305 | /* |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 306 | * see if it's time to sync |
| 307 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 308 | if (td->o.fsync_blocks && |
| 309 | !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) && |
| 310 | td->io_issues[DDIR_WRITE] && should_fsync(td)) { |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 311 | io_u->ddir = DDIR_SYNC; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 312 | return 0; |
| 313 | } |
| 314 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 315 | io_u->ddir = get_rw_ddir(td); |
| 316 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 317 | /* |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 318 | * No log, let the seq/rand engine retrieve the next buflen and |
| 319 | * position. |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 320 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 321 | if (get_next_offset(td, io_u)) |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 322 | return 1; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 323 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 324 | io_u->buflen = get_next_buflen(td, io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 325 | if (!io_u->buflen) |
| 326 | return 1; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 327 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 328 | /* |
| 329 | * mark entry before potentially trimming io_u |
| 330 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 331 | if (!td->o.read_iolog && td_random(td) && !td->o.norandommap) |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 332 | mark_random_map(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 333 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 334 | /* |
| 335 | * If using a write iolog, store this entry. |
| 336 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 337 | if (td->o.write_iolog_file) |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 338 | write_iolog_put(td, io_u); |
| 339 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 340 | return 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 341 | } |
| 342 | |
Jens Axboe | b360506 | 2007-03-12 14:19:47 +0100 | [diff] [blame] | 343 | 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] | 344 | { |
| 345 | int index = 0; |
| 346 | |
Jens Axboe | b360506 | 2007-03-12 14:19:47 +0100 | [diff] [blame] | 347 | if (io_u->ddir == DDIR_SYNC) |
| 348 | return; |
| 349 | |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 350 | switch (td->cur_depth) { |
| 351 | default: |
| 352 | index++; |
| 353 | case 32 ... 63: |
| 354 | index++; |
| 355 | case 16 ... 31: |
| 356 | index++; |
| 357 | case 8 ... 15: |
| 358 | index++; |
| 359 | case 4 ... 7: |
| 360 | index++; |
| 361 | case 2 ... 3: |
| 362 | index++; |
| 363 | case 1: |
| 364 | break; |
| 365 | } |
| 366 | |
Jens Axboe | 756867b | 2007-03-06 15:19:24 +0100 | [diff] [blame] | 367 | td->ts.io_u_map[index]++; |
Jens Axboe | b360506 | 2007-03-12 14:19:47 +0100 | [diff] [blame] | 368 | td->ts.total_io_u[io_u->ddir]++; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 369 | } |
| 370 | |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 371 | static void io_u_mark_latency(struct thread_data *td, unsigned long msec) |
| 372 | { |
| 373 | int index = 0; |
| 374 | |
| 375 | switch (msec) { |
| 376 | default: |
| 377 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 378 | case 1000 ... 1999: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 379 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 380 | case 750 ... 999: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 381 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 382 | case 500 ... 749: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 383 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 384 | case 250 ... 499: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 385 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 386 | case 100 ... 249: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 387 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 388 | case 50 ... 99: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 389 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 390 | case 20 ... 49: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 391 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 392 | case 10 ... 19: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 393 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 394 | case 4 ... 9: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 395 | index++; |
| 396 | case 2 ... 3: |
| 397 | index++; |
| 398 | case 0 ... 1: |
| 399 | break; |
| 400 | } |
| 401 | |
Jens Axboe | 756867b | 2007-03-06 15:19:24 +0100 | [diff] [blame] | 402 | td->ts.io_u_lat[index]++; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 403 | } |
| 404 | |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 405 | /* |
| 406 | * Get next file to service by choosing one at random |
| 407 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 408 | static struct fio_file *get_next_file_rand(struct thread_data *td, int goodf, |
| 409 | int badf) |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 410 | { |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 411 | struct fio_file *f; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 412 | int fno; |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 413 | |
| 414 | do { |
Jens Axboe | 7c83c08 | 2007-03-01 10:04:15 +0100 | [diff] [blame] | 415 | long r = os_random_long(&td->next_file_state); |
| 416 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 417 | 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] | 418 | f = &td->files[fno]; |
| 419 | |
| 420 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 421 | return f; |
| 422 | } while (1); |
| 423 | } |
| 424 | |
| 425 | /* |
| 426 | * Get next file to service by doing round robin between all available ones |
| 427 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 428 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
| 429 | int badf) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 430 | { |
| 431 | unsigned int old_next_file = td->next_file; |
| 432 | struct fio_file *f; |
| 433 | |
| 434 | do { |
| 435 | f = &td->files[td->next_file]; |
| 436 | |
| 437 | td->next_file++; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 438 | if (td->next_file >= td->o.nr_files) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 439 | td->next_file = 0; |
| 440 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 441 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 442 | break; |
| 443 | |
| 444 | f = NULL; |
| 445 | } while (td->next_file != old_next_file); |
| 446 | |
| 447 | return f; |
| 448 | } |
| 449 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 450 | static struct fio_file *get_next_file(struct thread_data *td) |
| 451 | { |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 452 | struct fio_file *f; |
| 453 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 454 | assert(td->o.nr_files <= td->files_index); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 455 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 456 | if (!td->nr_open_files) |
| 457 | return NULL; |
| 458 | |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 459 | f = td->file_service_file; |
Jens Axboe | f11bd94 | 2007-03-13 10:16:34 +0100 | [diff] [blame] | 460 | if (f && (f->flags & FIO_FILE_OPEN) && td->file_service_left--) |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 461 | return f; |
| 462 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 463 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 464 | f = get_next_file_rr(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 465 | else |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 466 | f = get_next_file_rand(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 467 | |
| 468 | td->file_service_file = f; |
| 469 | td->file_service_left = td->file_service_nr - 1; |
| 470 | return f; |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 471 | } |
| 472 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 473 | static struct fio_file *find_next_new_file(struct thread_data *td) |
| 474 | { |
| 475 | struct fio_file *f; |
| 476 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 477 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 478 | f = get_next_file_rr(td, 0, FIO_FILE_OPEN); |
| 479 | else |
| 480 | f = get_next_file_rand(td, 0, FIO_FILE_OPEN); |
| 481 | |
| 482 | return f; |
| 483 | } |
| 484 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 485 | struct io_u *__get_io_u(struct thread_data *td) |
| 486 | { |
| 487 | struct io_u *io_u = NULL; |
| 488 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 489 | if (!list_empty(&td->io_u_requeues)) |
| 490 | io_u = list_entry(td->io_u_requeues.next, struct io_u, list); |
| 491 | else if (!queue_full(td)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 492 | io_u = list_entry(td->io_u_freelist.next, struct io_u, list); |
| 493 | |
Jens Axboe | 6040dab | 2006-10-24 19:38:15 +0200 | [diff] [blame] | 494 | io_u->buflen = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 495 | io_u->resid = 0; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 496 | io_u->file = NULL; |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 497 | io_u->end_io = NULL; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 498 | } |
| 499 | |
| 500 | if (io_u) { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 501 | assert(io_u->flags & IO_U_F_FREE); |
| 502 | io_u->flags &= ~IO_U_F_FREE; |
| 503 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 504 | io_u->error = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 505 | list_del(&io_u->list); |
| 506 | list_add(&io_u->list, &td->io_u_busylist); |
| 507 | td->cur_depth++; |
| 508 | } |
| 509 | |
| 510 | return io_u; |
| 511 | } |
| 512 | |
| 513 | /* |
| 514 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, |
| 515 | * etc. The returned io_u is fully ready to be prepped and submitted. |
| 516 | */ |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 517 | struct io_u *get_io_u(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 518 | { |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 519 | struct fio_file *f; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 520 | struct io_u *io_u; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 521 | int ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 522 | |
| 523 | io_u = __get_io_u(td); |
| 524 | if (!io_u) |
| 525 | return NULL; |
| 526 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 527 | /* |
| 528 | * from a requeue, io_u already setup |
| 529 | */ |
| 530 | if (io_u->file) |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 531 | goto out; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 532 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 533 | do { |
| 534 | f = get_next_file(td); |
| 535 | if (!f) { |
| 536 | put_io_u(td, io_u); |
| 537 | return NULL; |
| 538 | } |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 539 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 540 | set_file: |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 541 | io_u->file = f; |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 542 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 543 | if (!fill_io_u(td, io_u)) |
| 544 | break; |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 545 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 546 | /* |
| 547 | * No more to do for this file, close it |
| 548 | */ |
| 549 | io_u->file = NULL; |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 550 | td_io_close_file(td, f); |
| 551 | |
| 552 | /* |
| 553 | * probably not the right place to do this, but see |
| 554 | * if we need to open a new file |
| 555 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 556 | if (td->nr_open_files < td->o.open_files && |
| 557 | td->o.open_files != td->o.nr_files) { |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 558 | f = find_next_new_file(td); |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 559 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 560 | if (!f || (ret = td_io_open_file(td, f))) { |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 561 | put_io_u(td, io_u); |
Jens Axboe | e291dc1 | 2007-03-13 21:50:34 +0100 | [diff] [blame] | 562 | return NULL; |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 563 | } |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 564 | goto set_file; |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 565 | } |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 566 | } while (1); |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 567 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 568 | if (td->zone_bytes >= td->o.zone_size) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 569 | td->zone_bytes = 0; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 570 | f->last_pos += td->o.zone_skip; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 571 | } |
| 572 | |
Jens Axboe | ee88470 | 2006-12-20 10:58:07 +0100 | [diff] [blame] | 573 | if (io_u->buflen + io_u->offset > f->real_file_size) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 574 | if (td->io_ops->flags & FIO_RAWIO) { |
| 575 | put_io_u(td, io_u); |
| 576 | return NULL; |
| 577 | } |
| 578 | |
Jens Axboe | ee88470 | 2006-12-20 10:58:07 +0100 | [diff] [blame] | 579 | io_u->buflen = f->real_file_size - io_u->offset; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 580 | } |
| 581 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 582 | if (io_u->ddir != DDIR_SYNC) { |
| 583 | if (!io_u->buflen) { |
| 584 | put_io_u(td, io_u); |
| 585 | return NULL; |
| 586 | } |
| 587 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 588 | f->last_pos = io_u->offset + io_u->buflen; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 589 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 590 | if (td->o.verify != VERIFY_NONE) |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 591 | populate_verify_io_u(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 592 | } |
| 593 | |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 594 | /* |
| 595 | * Set io data pointers. |
| 596 | */ |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 597 | out: |
Jens Axboe | cec6b55 | 2007-02-06 20:15:38 +0100 | [diff] [blame] | 598 | io_u->xfer_buf = io_u->buf; |
| 599 | io_u->xfer_buflen = io_u->buflen; |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 600 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 601 | if (td_io_prep(td, io_u)) { |
| 602 | put_io_u(td, io_u); |
| 603 | return NULL; |
| 604 | } |
| 605 | |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 606 | fio_gettime(&io_u->start_time, NULL); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 607 | return io_u; |
| 608 | } |
| 609 | |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 610 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
| 611 | { |
| 612 | const char *msg[] = { "read", "write", "sync" }; |
| 613 | |
| 614 | log_err("fio: io_u error"); |
| 615 | |
| 616 | if (io_u->file) |
| 617 | log_err(" on file %s", io_u->file->file_name); |
| 618 | |
| 619 | log_err(": %s\n", strerror(io_u->error)); |
| 620 | |
| 621 | log_err(" %s offset=%llu, buflen=%lu\n", msg[io_u->ddir], io_u->offset, io_u->xfer_buflen); |
| 622 | |
| 623 | if (!td->error) |
| 624 | td_verror(td, io_u->error, "io_u error"); |
| 625 | } |
| 626 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 627 | static void io_completed(struct thread_data *td, struct io_u *io_u, |
| 628 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 629 | { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 630 | unsigned long msec; |
| 631 | |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 632 | assert(io_u->flags & IO_U_F_FLIGHT); |
| 633 | io_u->flags &= ~IO_U_F_FLIGHT; |
| 634 | |
Jens Axboe | 0ad920e | 2007-03-13 11:06:45 +0100 | [diff] [blame] | 635 | put_file(td, io_u->file); |
| 636 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 637 | if (io_u->ddir == DDIR_SYNC) { |
| 638 | td->last_was_sync = 1; |
| 639 | return; |
| 640 | } |
| 641 | |
| 642 | td->last_was_sync = 0; |
| 643 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 644 | if (!io_u->error) { |
| 645 | unsigned int bytes = io_u->buflen - io_u->resid; |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 646 | const enum fio_ddir idx = io_u->ddir; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 647 | int ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 648 | |
| 649 | td->io_blocks[idx]++; |
| 650 | td->io_bytes[idx] += bytes; |
| 651 | td->zone_bytes += bytes; |
| 652 | td->this_io_bytes[idx] += bytes; |
| 653 | |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 654 | io_u->file->last_completed_pos = io_u->offset + io_u->buflen; |
| 655 | |
| 656 | msec = mtime_since(&io_u->issue_time, &icd->time); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 657 | |
| 658 | add_clat_sample(td, idx, msec); |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 659 | add_bw_sample(td, idx, &icd->time); |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 660 | io_u_mark_latency(td, msec); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 661 | |
| 662 | if ((td_rw(td) || td_write(td)) && idx == DDIR_WRITE) |
| 663 | log_io_piece(td, io_u); |
| 664 | |
| 665 | icd->bytes_done[idx] += bytes; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 666 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 667 | if (io_u->end_io) { |
| 668 | ret = io_u->end_io(io_u); |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 669 | if (ret && !icd->error) |
| 670 | icd->error = ret; |
| 671 | } |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 672 | } else { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 673 | icd->error = io_u->error; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 674 | io_u_log_error(td, io_u); |
| 675 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 676 | } |
| 677 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 678 | static void init_icd(struct io_completion_data *icd, int nr) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 679 | { |
| 680 | fio_gettime(&icd->time, NULL); |
| 681 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 682 | icd->nr = nr; |
| 683 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 684 | icd->error = 0; |
| 685 | icd->bytes_done[0] = icd->bytes_done[1] = 0; |
| 686 | } |
| 687 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 688 | static void ios_completed(struct thread_data *td, |
| 689 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 690 | { |
| 691 | struct io_u *io_u; |
| 692 | int i; |
| 693 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 694 | for (i = 0; i < icd->nr; i++) { |
| 695 | io_u = td->io_ops->event(td, i); |
| 696 | |
| 697 | io_completed(td, io_u, icd); |
| 698 | put_io_u(td, io_u); |
| 699 | } |
| 700 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 701 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 702 | /* |
| 703 | * Complete a single io_u for the sync engines. |
| 704 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 705 | 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] | 706 | { |
| 707 | struct io_completion_data icd; |
| 708 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 709 | init_icd(&icd, 1); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 710 | io_completed(td, io_u, &icd); |
| 711 | put_io_u(td, io_u); |
| 712 | |
| 713 | if (!icd.error) |
| 714 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 715 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 716 | td_verror(td, icd.error, "io_u_sync_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 717 | return -1; |
| 718 | } |
| 719 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 720 | /* |
| 721 | * Called to complete min_events number of io for the async engines. |
| 722 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 723 | long io_u_queued_complete(struct thread_data *td, int min_events) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 724 | { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 725 | struct io_completion_data icd; |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 726 | struct timespec *tvp = NULL; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 727 | int ret; |
Davide Libenzi | 4d06a33 | 2007-03-22 07:43:50 +0100 | [diff] [blame] | 728 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 729 | |
Davide Libenzi | 4d06a33 | 2007-03-22 07:43:50 +0100 | [diff] [blame] | 730 | if (!min_events) |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 731 | tvp = &ts; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 732 | |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 733 | ret = td_io_getevents(td, min_events, td->cur_depth, tvp); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 734 | if (ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 735 | td_verror(td, -ret, "td_io_getevents"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 736 | return ret; |
| 737 | } else if (!ret) |
| 738 | return ret; |
| 739 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 740 | init_icd(&icd, ret); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 741 | ios_completed(td, &icd); |
| 742 | if (!icd.error) |
| 743 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 744 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 745 | td_verror(td, icd.error, "io_u_queued_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 746 | return -1; |
| 747 | } |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 748 | |
| 749 | /* |
| 750 | * Call when io_u is really queued, to update the submission latency. |
| 751 | */ |
| 752 | void io_u_queued(struct thread_data *td, struct io_u *io_u) |
| 753 | { |
| 754 | unsigned long slat_time; |
| 755 | |
| 756 | slat_time = mtime_since(&io_u->start_time, &io_u->issue_time); |
| 757 | add_slat_sample(td, io_u->ddir, slat_time); |
| 758 | } |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 759 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 760 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 761 | void io_u_set_timeout(struct thread_data *td) |
| 762 | { |
| 763 | assert(td->cur_depth); |
| 764 | |
| 765 | td->timer.it_interval.tv_sec = 0; |
| 766 | td->timer.it_interval.tv_usec = 0; |
| 767 | td->timer.it_value.tv_sec = IO_U_TIMEOUT + IO_U_TIMEOUT_INC; |
| 768 | td->timer.it_value.tv_usec = 0; |
| 769 | setitimer(ITIMER_REAL, &td->timer, NULL); |
| 770 | fio_gettime(&td->timeout_end, NULL); |
| 771 | } |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 772 | |
| 773 | static void io_u_dump(struct io_u *io_u) |
| 774 | { |
| 775 | unsigned long t_start = mtime_since_now(&io_u->start_time); |
| 776 | unsigned long t_issue = mtime_since_now(&io_u->issue_time); |
| 777 | |
| 778 | log_err("io_u=%p, t_start=%lu, t_issue=%lu\n", io_u, t_start, t_issue); |
| 779 | 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); |
| 780 | log_err(" ddir=%d, fname=%s\n", io_u->ddir, io_u->file->file_name); |
| 781 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 782 | #else |
| 783 | void io_u_set_timeout(struct thread_data fio_unused *td) |
| 784 | { |
| 785 | } |
| 786 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 787 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 788 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 789 | static void io_u_timeout_handler(int fio_unused sig) |
| 790 | { |
| 791 | struct thread_data *td, *__td; |
| 792 | pid_t pid = getpid(); |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 793 | struct list_head *entry; |
| 794 | struct io_u *io_u; |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 795 | int i; |
| 796 | |
| 797 | log_err("fio: io_u timeout\n"); |
| 798 | |
| 799 | /* |
| 800 | * TLS would be nice... |
| 801 | */ |
| 802 | td = NULL; |
| 803 | for_each_td(__td, i) { |
| 804 | if (__td->pid == pid) { |
| 805 | td = __td; |
| 806 | break; |
| 807 | } |
| 808 | } |
| 809 | |
| 810 | if (!td) { |
| 811 | log_err("fio: io_u timeout, can't find job\n"); |
| 812 | exit(1); |
| 813 | } |
| 814 | |
| 815 | if (!td->cur_depth) { |
| 816 | log_err("fio: timeout without pending work?\n"); |
| 817 | return; |
| 818 | } |
| 819 | |
Jens Axboe | 15506d0 | 2007-03-15 15:04:43 +0100 | [diff] [blame] | 820 | 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] | 821 | |
| 822 | list_for_each(entry, &td->io_u_busylist) { |
| 823 | io_u = list_entry(entry, struct io_u, list); |
| 824 | |
| 825 | io_u_dump(io_u); |
| 826 | } |
| 827 | |
| 828 | td_verror(td, ETIMEDOUT, "io_u timeout"); |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 829 | exit(1); |
| 830 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 831 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 832 | |
| 833 | void io_u_init_timeout(void) |
| 834 | { |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 835 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 836 | signal(SIGALRM, io_u_timeout_handler); |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 837 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 838 | } |