Commit | Line | Data |
---|---|---|
fb7b71a3 JA |
1 | /* |
2 | * blktrace support code for fio | |
3 | */ | |
4 | #include <stdio.h> | |
5 | #include <stdlib.h> | |
5e6c2067 | 6 | #include <sys/stat.h> |
26e616d0 JA |
7 | #include <sys/ioctl.h> |
8 | #include <linux/fs.h> | |
5e6c2067 | 9 | #include <dirent.h> |
8c1fdf04 | 10 | |
01743ee1 | 11 | #include "flist.h" |
fb7b71a3 JA |
12 | #include "fio.h" |
13 | #include "blktrace_api.h" | |
984f30c9 | 14 | #include "oslib/linux-dev-lookup.h" |
fb7b71a3 | 15 | |
2da7df1d | 16 | #define TRACE_FIFO_SIZE 8192 |
e2887563 JA |
17 | |
18 | /* | |
19 | * fifo refill frontend, to avoid reading data in trace sized bites | |
20 | */ | |
21 | static int refill_fifo(struct thread_data *td, struct fifo *fifo, int fd) | |
22 | { | |
23 | char buf[TRACE_FIFO_SIZE]; | |
f12b323f | 24 | unsigned int total; |
e2887563 JA |
25 | int ret; |
26 | ||
f12b323f JA |
27 | total = sizeof(buf); |
28 | if (total > fifo_room(fifo)) | |
29 | total = fifo_room(fifo); | |
e2887563 | 30 | |
f12b323f JA |
31 | ret = read(fd, buf, total); |
32 | if (ret < 0) { | |
33 | td_verror(td, errno, "read blktrace file"); | |
34 | return -1; | |
e2887563 JA |
35 | } |
36 | ||
f12b323f JA |
37 | if (ret > 0) |
38 | ret = fifo_put(fifo, buf, ret); | |
39 | ||
bd6f78b2 | 40 | dprint(FD_BLKTRACE, "refill: filled %d bytes\n", ret); |
f12b323f | 41 | return ret; |
e2887563 JA |
42 | } |
43 | ||
44 | /* | |
45 | * Retrieve 'len' bytes from the fifo, refilling if necessary. | |
46 | */ | |
47 | static int trace_fifo_get(struct thread_data *td, struct fifo *fifo, int fd, | |
48 | void *buf, unsigned int len) | |
49 | { | |
f12b323f JA |
50 | if (fifo_len(fifo) < len) { |
51 | int ret = refill_fifo(td, fifo, fd); | |
e2887563 | 52 | |
f12b323f JA |
53 | if (ret < 0) |
54 | return ret; | |
55 | } | |
e2887563 JA |
56 | |
57 | return fifo_get(fifo, buf, len); | |
58 | } | |
59 | ||
8c1fdf04 JA |
60 | /* |
61 | * Just discard the pdu by seeking past it. | |
62 | */ | |
f12b323f JA |
63 | static int discard_pdu(struct thread_data *td, struct fifo *fifo, int fd, |
64 | struct blk_io_trace *t) | |
fb7b71a3 JA |
65 | { |
66 | if (t->pdu_len == 0) | |
67 | return 0; | |
68 | ||
bd6f78b2 | 69 | dprint(FD_BLKTRACE, "discard pdu len %u\n", t->pdu_len); |
f12b323f | 70 | return trace_fifo_get(td, fifo, fd, NULL, t->pdu_len); |
fb7b71a3 JA |
71 | } |
72 | ||
8c1fdf04 JA |
73 | /* |
74 | * Check if this is a blktrace binary data file. We read a single trace | |
75 | * into memory and check for the magic signature. | |
76 | */ | |
d95b34a6 | 77 | int is_blktrace(const char *filename, int *need_swap) |
fb7b71a3 JA |
78 | { |
79 | struct blk_io_trace t; | |
80 | int fd, ret; | |
81 | ||
82 | fd = open(filename, O_RDONLY); | |
4dced407 | 83 | if (fd < 0) |
fb7b71a3 | 84 | return 0; |
fb7b71a3 JA |
85 | |
86 | ret = read(fd, &t, sizeof(t)); | |
87 | close(fd); | |
88 | ||
89 | if (ret < 0) { | |
90 | perror("read blktrace"); | |
91 | return 0; | |
92 | } else if (ret != sizeof(t)) { | |
93 | log_err("fio: short read on blktrace file\n"); | |
94 | return 0; | |
95 | } | |
96 | ||
d95b34a6 JA |
97 | if ((t.magic & 0xffffff00) == BLK_IO_TRACE_MAGIC) { |
98 | *need_swap = 0; | |
fb7b71a3 | 99 | return 1; |
d95b34a6 JA |
100 | } |
101 | ||
102 | /* | |
103 | * Maybe it needs to be endian swapped... | |
104 | */ | |
105 | t.magic = fio_swap32(t.magic); | |
106 | if ((t.magic & 0xffffff00) == BLK_IO_TRACE_MAGIC) { | |
107 | *need_swap = 1; | |
108 | return 1; | |
109 | } | |
fb7b71a3 JA |
110 | |
111 | return 0; | |
112 | } | |
113 | ||
c69aa91f JA |
114 | #define FMINORBITS 20 |
115 | #define FMINORMASK ((1U << FMINORBITS) - 1) | |
116 | #define FMAJOR(dev) ((unsigned int) ((dev) >> FMINORBITS)) | |
117 | #define FMINOR(dev) ((unsigned int) ((dev) & FMINORMASK)) | |
eeb9c2aa | 118 | |
89ac1d48 | 119 | static void trace_add_open_close_event(struct thread_data *td, int fileno, enum file_log_act action) |
691c8fb0 JA |
120 | { |
121 | struct io_piece *ipo; | |
122 | ||
123 | ipo = calloc(1, sizeof(*ipo)); | |
0d29de83 | 124 | init_ipo(ipo); |
691c8fb0 JA |
125 | |
126 | ipo->ddir = DDIR_INVAL; | |
127 | ipo->fileno = fileno; | |
89ac1d48 | 128 | ipo->file_action = action; |
01743ee1 | 129 | flist_add_tail(&ipo->list, &td->io_log_list); |
691c8fb0 JA |
130 | } |
131 | ||
26e616d0 | 132 | static int get_dev_blocksize(const char *dev, unsigned int *bs) |
5e6c2067 | 133 | { |
26e616d0 JA |
134 | int fd; |
135 | ||
136 | fd = open(dev, O_RDONLY); | |
137 | if (fd < 0) | |
138 | return 1; | |
139 | ||
140 | if (ioctl(fd, BLKSSZGET, bs) < 0) { | |
141 | close(fd); | |
142 | return 1; | |
143 | } | |
144 | ||
145 | close(fd); | |
146 | return 0; | |
147 | } | |
148 | ||
149 | static int trace_add_file(struct thread_data *td, __u32 device, | |
150 | unsigned int *bs) | |
151 | { | |
152 | static unsigned int last_maj, last_min, last_fileno, last_bs; | |
c69aa91f JA |
153 | unsigned int maj = FMAJOR(device); |
154 | unsigned int min = FMINOR(device); | |
5e6c2067 | 155 | struct fio_file *f; |
5e6c2067 | 156 | unsigned int i; |
26e616d0 | 157 | char dev[256]; |
5e6c2067 | 158 | |
26e616d0 JA |
159 | if (last_maj == maj && last_min == min) { |
160 | *bs = last_bs; | |
89ac1d48 | 161 | return last_fileno; |
26e616d0 | 162 | } |
5e6c2067 JA |
163 | |
164 | last_maj = maj; | |
165 | last_min = min; | |
166 | ||
167 | /* | |
168 | * check for this file in our list | |
169 | */ | |
26e616d0 | 170 | for_each_file(td, f, i) { |
89ac1d48 SL |
171 | if (f->major == maj && f->minor == min) { |
172 | last_fileno = f->fileno; | |
26e616d0 JA |
173 | last_bs = f->bs; |
174 | goto out; | |
89ac1d48 | 175 | } |
26e616d0 | 176 | } |
5e6c2067 JA |
177 | |
178 | strcpy(dev, "/dev"); | |
40bafa33 | 179 | if (blktrace_lookup_device(td->o.replay_redirect, dev, maj, min)) { |
26e616d0 | 180 | unsigned int this_bs; |
691c8fb0 JA |
181 | int fileno; |
182 | ||
40bafa33 JA |
183 | if (td->o.replay_redirect) |
184 | dprint(FD_BLKTRACE, "device lookup: %d/%d\n overridden" | |
185 | " with: %s\n", maj, min, | |
186 | td->o.replay_redirect); | |
187 | else | |
188 | dprint(FD_BLKTRACE, "device lookup: %d/%d\n", maj, min); | |
189 | ||
bd6f78b2 | 190 | dprint(FD_BLKTRACE, "add devices %s\n", dev); |
49ffb4a2 | 191 | fileno = add_file_exclusive(td, dev); |
26e616d0 JA |
192 | |
193 | if (get_dev_blocksize(dev, &this_bs)) | |
194 | this_bs = 512; | |
195 | ||
b53f2c54 | 196 | td->o.open_files++; |
5903e7b7 JA |
197 | td->files[fileno]->major = maj; |
198 | td->files[fileno]->minor = min; | |
26e616d0 | 199 | td->files[fileno]->bs = this_bs; |
89ac1d48 | 200 | trace_add_open_close_event(td, fileno, FIO_LOG_OPEN_FILE); |
26e616d0 | 201 | |
89ac1d48 | 202 | last_fileno = fileno; |
26e616d0 | 203 | last_bs = this_bs; |
bd6f78b2 | 204 | } |
f01b34ae | 205 | |
26e616d0 JA |
206 | out: |
207 | *bs = last_bs; | |
89ac1d48 | 208 | return last_fileno; |
5e6c2067 JA |
209 | } |
210 | ||
0c63576e JA |
211 | static void t_bytes_align(struct thread_options *o, struct blk_io_trace *t) |
212 | { | |
213 | if (!o->replay_align) | |
214 | return; | |
215 | ||
216 | t->bytes = (t->bytes + o->replay_align - 1) & ~(o->replay_align - 1); | |
217 | } | |
218 | ||
8c1fdf04 JA |
219 | /* |
220 | * Store blk_io_trace data in an ipo for later retrieval. | |
221 | */ | |
fdefd987 | 222 | static void store_ipo(struct thread_data *td, unsigned long long offset, |
89ac1d48 | 223 | unsigned int bytes, int rw, unsigned long long ttime, |
26e616d0 | 224 | int fileno, unsigned int bs) |
fdefd987 JA |
225 | { |
226 | struct io_piece *ipo = malloc(sizeof(*ipo)); | |
227 | ||
0d29de83 JA |
228 | init_ipo(ipo); |
229 | ||
26e616d0 | 230 | ipo->offset = offset * bs; |
0c63576e JA |
231 | if (td->o.replay_scale) |
232 | ipo->offset = ipo->offset / td->o.replay_scale; | |
a79f17bf | 233 | ipo_bytes_align(td->o.replay_align, ipo); |
fdefd987 | 234 | ipo->len = bytes; |
8c1fdf04 | 235 | ipo->delay = ttime / 1000; |
fdefd987 JA |
236 | if (rw) |
237 | ipo->ddir = DDIR_WRITE; | |
238 | else | |
239 | ipo->ddir = DDIR_READ; | |
89ac1d48 | 240 | ipo->fileno = fileno; |
fdefd987 | 241 | |
bd6f78b2 JA |
242 | dprint(FD_BLKTRACE, "store ddir=%d, off=%llu, len=%lu, delay=%lu\n", |
243 | ipo->ddir, ipo->offset, | |
244 | ipo->len, ipo->delay); | |
691c8fb0 | 245 | queue_io_piece(td, ipo); |
fdefd987 JA |
246 | } |
247 | ||
0b9d69ec | 248 | static void handle_trace_notify(struct blk_io_trace *t) |
cd991b9e | 249 | { |
691c8fb0 JA |
250 | switch (t->action) { |
251 | case BLK_TN_PROCESS: | |
24653680 | 252 | dprint(FD_BLKTRACE, "got process notify: %x, %d\n", |
d95b34a6 | 253 | t->action, t->pid); |
691c8fb0 JA |
254 | break; |
255 | case BLK_TN_TIMESTAMP: | |
24653680 | 256 | dprint(FD_BLKTRACE, "got timestamp notify: %x, %d\n", |
d95b34a6 | 257 | t->action, t->pid); |
691c8fb0 | 258 | break; |
ff58fced JA |
259 | case BLK_TN_MESSAGE: |
260 | break; | |
691c8fb0 JA |
261 | default: |
262 | dprint(FD_BLKTRACE, "unknown trace act %x\n", t->action); | |
263 | break; | |
264 | } | |
265 | } | |
5b3023b8 | 266 | |
24653680 JA |
267 | static void handle_trace_discard(struct thread_data *td, |
268 | struct blk_io_trace *t, | |
269 | unsigned long long ttime, | |
26e616d0 | 270 | unsigned long *ios, unsigned int *rw_bs) |
ff58fced JA |
271 | { |
272 | struct io_piece *ipo = malloc(sizeof(*ipo)); | |
26e616d0 | 273 | unsigned int bs; |
89ac1d48 | 274 | int fileno; |
ff58fced | 275 | |
0d29de83 | 276 | init_ipo(ipo); |
26e616d0 | 277 | fileno = trace_add_file(td, t->device, &bs); |
ff58fced | 278 | |
24653680 | 279 | ios[DDIR_TRIM]++; |
26e616d0 JA |
280 | if (t->bytes > rw_bs[DDIR_TRIM]) |
281 | rw_bs[DDIR_TRIM] = t->bytes; | |
24653680 | 282 | |
ff58fced JA |
283 | td->o.size += t->bytes; |
284 | ||
285 | memset(ipo, 0, sizeof(*ipo)); | |
286 | INIT_FLIST_HEAD(&ipo->list); | |
287 | ||
26e616d0 | 288 | ipo->offset = t->sector * bs; |
0c63576e JA |
289 | if (td->o.replay_scale) |
290 | ipo->offset = ipo->offset / td->o.replay_scale; | |
a79f17bf | 291 | ipo_bytes_align(td->o.replay_align, ipo); |
ff58fced JA |
292 | ipo->len = t->bytes; |
293 | ipo->delay = ttime / 1000; | |
294 | ipo->ddir = DDIR_TRIM; | |
89ac1d48 | 295 | ipo->fileno = fileno; |
ff58fced JA |
296 | |
297 | dprint(FD_BLKTRACE, "store discard, off=%llu, len=%lu, delay=%lu\n", | |
298 | ipo->offset, ipo->len, | |
299 | ipo->delay); | |
300 | queue_io_piece(td, ipo); | |
301 | } | |
302 | ||
691c8fb0 JA |
303 | static void handle_trace_fs(struct thread_data *td, struct blk_io_trace *t, |
304 | unsigned long long ttime, unsigned long *ios, | |
26e616d0 | 305 | unsigned int *rw_bs) |
691c8fb0 | 306 | { |
26e616d0 | 307 | unsigned int bs; |
691c8fb0 | 308 | int rw; |
89ac1d48 | 309 | int fileno; |
5b3023b8 | 310 | |
26e616d0 | 311 | fileno = trace_add_file(td, t->device, &bs); |
5b3023b8 JA |
312 | |
313 | rw = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; | |
314 | ||
26e616d0 JA |
315 | if (t->bytes > rw_bs[rw]) |
316 | rw_bs[rw] = t->bytes; | |
5b3023b8 JA |
317 | |
318 | ios[rw]++; | |
319 | td->o.size += t->bytes; | |
26e616d0 | 320 | store_ipo(td, t->sector, t->bytes, rw, ttime, fileno, bs); |
cd991b9e JA |
321 | } |
322 | ||
691c8fb0 JA |
323 | /* |
324 | * We only care for queue traces, most of the others are side effects | |
325 | * due to internal workings of the block layer. | |
326 | */ | |
327 | static void handle_trace(struct thread_data *td, struct blk_io_trace *t, | |
24653680 | 328 | unsigned long *ios, unsigned int *bs) |
691c8fb0 | 329 | { |
24653680 | 330 | static unsigned long long last_ttime; |
0c63576e | 331 | unsigned long long delay = 0; |
24653680 | 332 | |
691c8fb0 JA |
333 | if ((t->action & 0xffff) != __BLK_TA_QUEUE) |
334 | return; | |
24653680 JA |
335 | |
336 | if (!(t->action & BLK_TC_ACT(BLK_TC_NOTIFY))) { | |
337 | if (!last_ttime || td->o.no_stall) { | |
338 | last_ttime = t->time; | |
339 | delay = 0; | |
340 | } else { | |
341 | delay = t->time - last_ttime; | |
342 | last_ttime = t->time; | |
343 | } | |
344 | } | |
691c8fb0 | 345 | |
0c63576e JA |
346 | t_bytes_align(&td->o, t); |
347 | ||
691c8fb0 | 348 | if (t->action & BLK_TC_ACT(BLK_TC_NOTIFY)) |
aec2de20 | 349 | handle_trace_notify(t); |
ff58fced | 350 | else if (t->action & BLK_TC_ACT(BLK_TC_DISCARD)) |
24653680 | 351 | handle_trace_discard(td, t, delay, ios, bs); |
691c8fb0 | 352 | else |
24653680 | 353 | handle_trace_fs(td, t, delay, ios, bs); |
691c8fb0 JA |
354 | } |
355 | ||
d95b34a6 JA |
356 | static void byteswap_trace(struct blk_io_trace *t) |
357 | { | |
358 | t->magic = fio_swap32(t->magic); | |
359 | t->sequence = fio_swap32(t->sequence); | |
360 | t->time = fio_swap64(t->time); | |
361 | t->sector = fio_swap64(t->sector); | |
362 | t->bytes = fio_swap32(t->bytes); | |
363 | t->action = fio_swap32(t->action); | |
364 | t->pid = fio_swap32(t->pid); | |
365 | t->device = fio_swap32(t->device); | |
366 | t->cpu = fio_swap32(t->cpu); | |
367 | t->error = fio_swap16(t->error); | |
368 | t->pdu_len = fio_swap16(t->pdu_len); | |
369 | } | |
370 | ||
24653680 JA |
371 | static int t_is_write(struct blk_io_trace *t) |
372 | { | |
373 | return (t->action & BLK_TC_ACT(BLK_TC_WRITE | BLK_TC_DISCARD)) != 0; | |
374 | } | |
375 | ||
a6eaf6c9 JA |
376 | static enum fio_ddir t_get_ddir(struct blk_io_trace *t) |
377 | { | |
378 | if (t->action & BLK_TC_ACT(BLK_TC_READ)) | |
379 | return DDIR_READ; | |
380 | else if (t->action & BLK_TC_ACT(BLK_TC_WRITE)) | |
381 | return DDIR_WRITE; | |
382 | else if (t->action & BLK_TC_ACT(BLK_TC_DISCARD)) | |
383 | return DDIR_TRIM; | |
384 | ||
385 | return DDIR_INVAL; | |
386 | } | |
387 | ||
388 | static void depth_inc(struct blk_io_trace *t, int *depth) | |
389 | { | |
390 | enum fio_ddir ddir; | |
391 | ||
392 | ddir = t_get_ddir(t); | |
393 | if (ddir != DDIR_INVAL) | |
394 | depth[ddir]++; | |
395 | } | |
396 | ||
397 | static void depth_dec(struct blk_io_trace *t, int *depth) | |
398 | { | |
399 | enum fio_ddir ddir; | |
400 | ||
401 | ddir = t_get_ddir(t); | |
402 | if (ddir != DDIR_INVAL) | |
403 | depth[ddir]--; | |
404 | } | |
405 | ||
406 | static void depth_end(struct blk_io_trace *t, int *this_depth, int *depth) | |
407 | { | |
408 | enum fio_ddir ddir = DDIR_INVAL; | |
409 | ||
410 | ddir = t_get_ddir(t); | |
411 | if (ddir != DDIR_INVAL) { | |
412 | depth[ddir] = max(depth[ddir], this_depth[ddir]); | |
413 | this_depth[ddir] = 0; | |
414 | } | |
415 | } | |
416 | ||
8c1fdf04 JA |
417 | /* |
418 | * Load a blktrace file by reading all the blk_io_trace entries, and storing | |
419 | * them as io_pieces like the fio text version would do. | |
420 | */ | |
d95b34a6 | 421 | int load_blktrace(struct thread_data *td, const char *filename, int need_swap) |
fb7b71a3 JA |
422 | { |
423 | struct blk_io_trace t; | |
24653680 JA |
424 | unsigned long ios[DDIR_RWDIR_CNT], skipped_writes; |
425 | unsigned int rw_bs[DDIR_RWDIR_CNT]; | |
e2887563 | 426 | struct fifo *fifo; |
5903e7b7 | 427 | int fd, i, old_state; |
89ac1d48 | 428 | struct fio_file *f; |
a6eaf6c9 | 429 | int this_depth[DDIR_RWDIR_CNT], depth[DDIR_RWDIR_CNT], max_depth; |
fb7b71a3 JA |
430 | |
431 | fd = open(filename, O_RDONLY); | |
432 | if (fd < 0) { | |
433 | td_verror(td, errno, "open blktrace file"); | |
434 | return 1; | |
435 | } | |
436 | ||
e2887563 JA |
437 | fifo = fifo_alloc(TRACE_FIFO_SIZE); |
438 | ||
8edd973d | 439 | old_state = td_bump_runstate(td, TD_SETTING_UP); |
5903e7b7 | 440 | |
6df8adaa JA |
441 | td->o.size = 0; |
442 | ||
a6eaf6c9 JA |
443 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
444 | ios[i] = 0; | |
445 | rw_bs[i] = 0; | |
446 | this_depth[i] = 0; | |
447 | depth[i] = 0; | |
448 | } | |
449 | ||
4241ea8f | 450 | skipped_writes = 0; |
fb7b71a3 | 451 | do { |
e2887563 | 452 | int ret = trace_fifo_get(td, fifo, fd, &t, sizeof(t)); |
fb7b71a3 | 453 | |
e2887563 | 454 | if (ret < 0) |
8c1fdf04 | 455 | goto err; |
e2887563 JA |
456 | else if (!ret) |
457 | break; | |
458 | else if (ret < (int) sizeof(t)) { | |
459 | log_err("fio: short fifo get\n"); | |
fb7b71a3 | 460 | break; |
fb7b71a3 JA |
461 | } |
462 | ||
d95b34a6 JA |
463 | if (need_swap) |
464 | byteswap_trace(&t); | |
465 | ||
fb7b71a3 | 466 | if ((t.magic & 0xffffff00) != BLK_IO_TRACE_MAGIC) { |
5ec10eaa JA |
467 | log_err("fio: bad magic in blktrace data: %x\n", |
468 | t.magic); | |
8c1fdf04 | 469 | goto err; |
fb7b71a3 JA |
470 | } |
471 | if ((t.magic & 0xff) != BLK_IO_TRACE_VERSION) { | |
5ec10eaa JA |
472 | log_err("fio: bad blktrace version %d\n", |
473 | t.magic & 0xff); | |
8c1fdf04 | 474 | goto err; |
fb7b71a3 | 475 | } |
f12b323f JA |
476 | ret = discard_pdu(td, fifo, fd, &t); |
477 | if (ret < 0) { | |
fb7b71a3 | 478 | td_verror(td, ret, "blktrace lseek"); |
8c1fdf04 | 479 | goto err; |
f12b323f JA |
480 | } else if (t.pdu_len != ret) { |
481 | log_err("fio: discarded %d of %d\n", ret, t.pdu_len); | |
482 | goto err; | |
fb7b71a3 | 483 | } |
691c8fb0 | 484 | if ((t.action & BLK_TC_ACT(BLK_TC_NOTIFY)) == 0) { |
eb5fdcf1 | 485 | if ((t.action & 0xffff) == __BLK_TA_QUEUE) |
a6eaf6c9 JA |
486 | depth_inc(&t, this_depth); |
487 | else if (((t.action & 0xffff) == __BLK_TA_BACKMERGE) || | |
488 | ((t.action & 0xffff) == __BLK_TA_FRONTMERGE)) | |
489 | depth_dec(&t, this_depth); | |
490 | else if ((t.action & 0xffff) == __BLK_TA_COMPLETE) | |
491 | depth_end(&t, this_depth, depth); | |
691c8fb0 | 492 | |
24653680 | 493 | if (t_is_write(&t) && read_only) { |
691c8fb0 | 494 | skipped_writes++; |
24653680 | 495 | continue; |
64bbb865 | 496 | } |
a6edd638 | 497 | } |
24653680 JA |
498 | |
499 | handle_trace(td, &t, ios, rw_bs); | |
fb7b71a3 JA |
500 | } while (1); |
501 | ||
85a47ca2 | 502 | for (i = 0; i < td->files_index; i++) { |
f01b34ae | 503 | f = td->files[i]; |
89ac1d48 | 504 | trace_add_open_close_event(td, f->fileno, FIO_LOG_CLOSE_FILE); |
85a47ca2 | 505 | } |
89ac1d48 | 506 | |
38470f85 | 507 | fifo_free(fifo); |
fb7b71a3 | 508 | close(fd); |
8c1fdf04 | 509 | |
8edd973d | 510 | td_restore_runstate(td, old_state); |
5903e7b7 | 511 | |
f01b34ae JA |
512 | if (!td->files_index) { |
513 | log_err("fio: did not find replay device(s)\n"); | |
514 | return 1; | |
515 | } | |
516 | ||
eb5fdcf1 JA |
517 | /* |
518 | * For stacked devices, we don't always get a COMPLETE event so | |
519 | * the depth grows to insane values. Limit it to something sane(r). | |
520 | */ | |
a6eaf6c9 JA |
521 | max_depth = 0; |
522 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { | |
523 | if (depth[i] > 1024) | |
524 | depth[i] = 1024; | |
525 | else if (!depth[i] && ios[i]) | |
526 | depth[i] = 1; | |
527 | max_depth = max(depth[i], max_depth); | |
528 | } | |
eb5fdcf1 | 529 | |
4241ea8f | 530 | if (skipped_writes) |
5ec10eaa JA |
531 | log_err("fio: %s skips replay of %lu writes due to read-only\n", |
532 | td->o.name, skipped_writes); | |
4241ea8f | 533 | |
8c1fdf04 JA |
534 | if (!ios[DDIR_READ] && !ios[DDIR_WRITE]) { |
535 | log_err("fio: found no ios in blktrace data\n"); | |
536 | return 1; | |
24653680 | 537 | } else if (ios[DDIR_READ] && !ios[DDIR_WRITE]) { |
8c1fdf04 | 538 | td->o.td_ddir = TD_DDIR_READ; |
d84f8d49 JA |
539 | td->o.max_bs[DDIR_READ] = rw_bs[DDIR_READ]; |
540 | } else if (!ios[DDIR_READ] && ios[DDIR_WRITE]) { | |
8c1fdf04 | 541 | td->o.td_ddir = TD_DDIR_WRITE; |
d84f8d49 JA |
542 | td->o.max_bs[DDIR_WRITE] = rw_bs[DDIR_WRITE]; |
543 | } else { | |
8c1fdf04 | 544 | td->o.td_ddir = TD_DDIR_RW; |
d84f8d49 JA |
545 | td->o.max_bs[DDIR_READ] = rw_bs[DDIR_READ]; |
546 | td->o.max_bs[DDIR_WRITE] = rw_bs[DDIR_WRITE]; | |
24653680 | 547 | td->o.max_bs[DDIR_TRIM] = rw_bs[DDIR_TRIM]; |
d84f8d49 | 548 | } |
8c1fdf04 JA |
549 | |
550 | /* | |
551 | * We need to do direct/raw ios to the device, to avoid getting | |
76a00ec6 JA |
552 | * read-ahead in our way. But only do so if the minimum block size |
553 | * is a multiple of 4k, otherwise we don't know if it's safe to do so. | |
8c1fdf04 | 554 | */ |
76a00ec6 | 555 | if (!fio_option_is_set(&td->o, odirect) && !(td_min_bs(td) & 4095)) |
a6eaf6c9 | 556 | td->o.odirect = 1; |
8c1fdf04 | 557 | |
eb5fdcf1 | 558 | /* |
8a16f59b | 559 | * If depth wasn't manually set, use probed depth |
eb5fdcf1 | 560 | */ |
8a16f59b | 561 | if (!fio_option_is_set(&td->o, iodepth)) |
a6eaf6c9 | 562 | td->o.iodepth = td->o.iodepth_low = max_depth; |
eb5fdcf1 | 563 | |
fb7b71a3 | 564 | return 0; |
8c1fdf04 JA |
565 | err: |
566 | close(fd); | |
38470f85 | 567 | fifo_free(fifo); |
8c1fdf04 | 568 | return 1; |
fb7b71a3 | 569 | } |