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 | 12 | #include "fio.h" |
a3e59412 | 13 | #include "blktrace.h" |
fb7b71a3 | 14 | #include "blktrace_api.h" |
984f30c9 | 15 | #include "oslib/linux-dev-lookup.h" |
fb7b71a3 | 16 | |
2da7df1d | 17 | #define TRACE_FIFO_SIZE 8192 |
e2887563 JA |
18 | |
19 | /* | |
20 | * fifo refill frontend, to avoid reading data in trace sized bites | |
21 | */ | |
22 | static int refill_fifo(struct thread_data *td, struct fifo *fifo, int fd) | |
23 | { | |
24 | char buf[TRACE_FIFO_SIZE]; | |
f12b323f | 25 | unsigned int total; |
e2887563 JA |
26 | int ret; |
27 | ||
f12b323f JA |
28 | total = sizeof(buf); |
29 | if (total > fifo_room(fifo)) | |
30 | total = fifo_room(fifo); | |
e2887563 | 31 | |
f12b323f JA |
32 | ret = read(fd, buf, total); |
33 | if (ret < 0) { | |
34 | td_verror(td, errno, "read blktrace file"); | |
35 | return -1; | |
e2887563 JA |
36 | } |
37 | ||
f12b323f JA |
38 | if (ret > 0) |
39 | ret = fifo_put(fifo, buf, ret); | |
40 | ||
bd6f78b2 | 41 | dprint(FD_BLKTRACE, "refill: filled %d bytes\n", ret); |
f12b323f | 42 | return ret; |
e2887563 JA |
43 | } |
44 | ||
45 | /* | |
46 | * Retrieve 'len' bytes from the fifo, refilling if necessary. | |
47 | */ | |
48 | static int trace_fifo_get(struct thread_data *td, struct fifo *fifo, int fd, | |
49 | void *buf, unsigned int len) | |
50 | { | |
f12b323f JA |
51 | if (fifo_len(fifo) < len) { |
52 | int ret = refill_fifo(td, fifo, fd); | |
e2887563 | 53 | |
f12b323f JA |
54 | if (ret < 0) |
55 | return ret; | |
56 | } | |
e2887563 JA |
57 | |
58 | return fifo_get(fifo, buf, len); | |
59 | } | |
60 | ||
8c1fdf04 JA |
61 | /* |
62 | * Just discard the pdu by seeking past it. | |
63 | */ | |
f12b323f JA |
64 | static int discard_pdu(struct thread_data *td, struct fifo *fifo, int fd, |
65 | struct blk_io_trace *t) | |
fb7b71a3 JA |
66 | { |
67 | if (t->pdu_len == 0) | |
68 | return 0; | |
69 | ||
bd6f78b2 | 70 | dprint(FD_BLKTRACE, "discard pdu len %u\n", t->pdu_len); |
f12b323f | 71 | return trace_fifo_get(td, fifo, fd, NULL, t->pdu_len); |
fb7b71a3 JA |
72 | } |
73 | ||
8c1fdf04 JA |
74 | /* |
75 | * Check if this is a blktrace binary data file. We read a single trace | |
76 | * into memory and check for the magic signature. | |
77 | */ | |
d95b34a6 | 78 | int is_blktrace(const char *filename, int *need_swap) |
fb7b71a3 JA |
79 | { |
80 | struct blk_io_trace t; | |
81 | int fd, ret; | |
82 | ||
83 | fd = open(filename, O_RDONLY); | |
4dced407 | 84 | if (fd < 0) |
fb7b71a3 | 85 | return 0; |
fb7b71a3 JA |
86 | |
87 | ret = read(fd, &t, sizeof(t)); | |
88 | close(fd); | |
89 | ||
90 | if (ret < 0) { | |
91 | perror("read blktrace"); | |
92 | return 0; | |
93 | } else if (ret != sizeof(t)) { | |
94 | log_err("fio: short read on blktrace file\n"); | |
95 | return 0; | |
96 | } | |
97 | ||
d95b34a6 JA |
98 | if ((t.magic & 0xffffff00) == BLK_IO_TRACE_MAGIC) { |
99 | *need_swap = 0; | |
fb7b71a3 | 100 | return 1; |
d95b34a6 JA |
101 | } |
102 | ||
103 | /* | |
104 | * Maybe it needs to be endian swapped... | |
105 | */ | |
106 | t.magic = fio_swap32(t.magic); | |
107 | if ((t.magic & 0xffffff00) == BLK_IO_TRACE_MAGIC) { | |
108 | *need_swap = 1; | |
109 | return 1; | |
110 | } | |
fb7b71a3 JA |
111 | |
112 | return 0; | |
113 | } | |
114 | ||
c69aa91f JA |
115 | #define FMINORBITS 20 |
116 | #define FMINORMASK ((1U << FMINORBITS) - 1) | |
117 | #define FMAJOR(dev) ((unsigned int) ((dev) >> FMINORBITS)) | |
118 | #define FMINOR(dev) ((unsigned int) ((dev) & FMINORMASK)) | |
eeb9c2aa | 119 | |
89ac1d48 | 120 | static void trace_add_open_close_event(struct thread_data *td, int fileno, enum file_log_act action) |
691c8fb0 JA |
121 | { |
122 | struct io_piece *ipo; | |
123 | ||
124 | ipo = calloc(1, sizeof(*ipo)); | |
0d29de83 | 125 | init_ipo(ipo); |
691c8fb0 JA |
126 | |
127 | ipo->ddir = DDIR_INVAL; | |
128 | ipo->fileno = fileno; | |
89ac1d48 | 129 | ipo->file_action = action; |
01743ee1 | 130 | flist_add_tail(&ipo->list, &td->io_log_list); |
691c8fb0 JA |
131 | } |
132 | ||
26e616d0 | 133 | static int get_dev_blocksize(const char *dev, unsigned int *bs) |
5e6c2067 | 134 | { |
26e616d0 JA |
135 | int fd; |
136 | ||
137 | fd = open(dev, O_RDONLY); | |
138 | if (fd < 0) | |
139 | return 1; | |
140 | ||
141 | if (ioctl(fd, BLKSSZGET, bs) < 0) { | |
142 | close(fd); | |
143 | return 1; | |
144 | } | |
145 | ||
146 | close(fd); | |
147 | return 0; | |
148 | } | |
149 | ||
150 | static int trace_add_file(struct thread_data *td, __u32 device, | |
151 | unsigned int *bs) | |
152 | { | |
153 | static unsigned int last_maj, last_min, last_fileno, last_bs; | |
c69aa91f JA |
154 | unsigned int maj = FMAJOR(device); |
155 | unsigned int min = FMINOR(device); | |
5e6c2067 | 156 | struct fio_file *f; |
5e6c2067 | 157 | unsigned int i; |
26e616d0 | 158 | char dev[256]; |
5e6c2067 | 159 | |
26e616d0 JA |
160 | if (last_maj == maj && last_min == min) { |
161 | *bs = last_bs; | |
89ac1d48 | 162 | return last_fileno; |
26e616d0 | 163 | } |
5e6c2067 JA |
164 | |
165 | last_maj = maj; | |
166 | last_min = min; | |
167 | ||
168 | /* | |
169 | * check for this file in our list | |
170 | */ | |
26e616d0 | 171 | for_each_file(td, f, i) { |
89ac1d48 SL |
172 | if (f->major == maj && f->minor == min) { |
173 | last_fileno = f->fileno; | |
26e616d0 JA |
174 | last_bs = f->bs; |
175 | goto out; | |
89ac1d48 | 176 | } |
26e616d0 | 177 | } |
5e6c2067 JA |
178 | |
179 | strcpy(dev, "/dev"); | |
40bafa33 | 180 | if (blktrace_lookup_device(td->o.replay_redirect, dev, maj, min)) { |
26e616d0 | 181 | unsigned int this_bs; |
691c8fb0 JA |
182 | int fileno; |
183 | ||
40bafa33 JA |
184 | if (td->o.replay_redirect) |
185 | dprint(FD_BLKTRACE, "device lookup: %d/%d\n overridden" | |
186 | " with: %s\n", maj, min, | |
187 | td->o.replay_redirect); | |
188 | else | |
189 | dprint(FD_BLKTRACE, "device lookup: %d/%d\n", maj, min); | |
190 | ||
bd6f78b2 | 191 | dprint(FD_BLKTRACE, "add devices %s\n", dev); |
49ffb4a2 | 192 | fileno = add_file_exclusive(td, dev); |
26e616d0 JA |
193 | |
194 | if (get_dev_blocksize(dev, &this_bs)) | |
195 | this_bs = 512; | |
196 | ||
b53f2c54 | 197 | td->o.open_files++; |
5903e7b7 JA |
198 | td->files[fileno]->major = maj; |
199 | td->files[fileno]->minor = min; | |
26e616d0 | 200 | td->files[fileno]->bs = this_bs; |
89ac1d48 | 201 | trace_add_open_close_event(td, fileno, FIO_LOG_OPEN_FILE); |
26e616d0 | 202 | |
89ac1d48 | 203 | last_fileno = fileno; |
26e616d0 | 204 | last_bs = this_bs; |
bd6f78b2 | 205 | } |
f01b34ae | 206 | |
26e616d0 JA |
207 | out: |
208 | *bs = last_bs; | |
89ac1d48 | 209 | return last_fileno; |
5e6c2067 JA |
210 | } |
211 | ||
0c63576e JA |
212 | static void t_bytes_align(struct thread_options *o, struct blk_io_trace *t) |
213 | { | |
214 | if (!o->replay_align) | |
215 | return; | |
216 | ||
217 | t->bytes = (t->bytes + o->replay_align - 1) & ~(o->replay_align - 1); | |
218 | } | |
219 | ||
8c1fdf04 JA |
220 | /* |
221 | * Store blk_io_trace data in an ipo for later retrieval. | |
222 | */ | |
fdefd987 | 223 | static void store_ipo(struct thread_data *td, unsigned long long offset, |
89ac1d48 | 224 | unsigned int bytes, int rw, unsigned long long ttime, |
26e616d0 | 225 | int fileno, unsigned int bs) |
fdefd987 JA |
226 | { |
227 | struct io_piece *ipo = malloc(sizeof(*ipo)); | |
228 | ||
0d29de83 JA |
229 | init_ipo(ipo); |
230 | ||
26e616d0 | 231 | ipo->offset = offset * bs; |
0c63576e JA |
232 | if (td->o.replay_scale) |
233 | ipo->offset = ipo->offset / td->o.replay_scale; | |
a79f17bf | 234 | ipo_bytes_align(td->o.replay_align, ipo); |
fdefd987 | 235 | ipo->len = bytes; |
8c1fdf04 | 236 | ipo->delay = ttime / 1000; |
fdefd987 JA |
237 | if (rw) |
238 | ipo->ddir = DDIR_WRITE; | |
239 | else | |
240 | ipo->ddir = DDIR_READ; | |
89ac1d48 | 241 | ipo->fileno = fileno; |
fdefd987 | 242 | |
bd6f78b2 JA |
243 | dprint(FD_BLKTRACE, "store ddir=%d, off=%llu, len=%lu, delay=%lu\n", |
244 | ipo->ddir, ipo->offset, | |
245 | ipo->len, ipo->delay); | |
691c8fb0 | 246 | queue_io_piece(td, ipo); |
fdefd987 JA |
247 | } |
248 | ||
0b9d69ec | 249 | static void handle_trace_notify(struct blk_io_trace *t) |
cd991b9e | 250 | { |
691c8fb0 JA |
251 | switch (t->action) { |
252 | case BLK_TN_PROCESS: | |
24653680 | 253 | dprint(FD_BLKTRACE, "got process notify: %x, %d\n", |
d95b34a6 | 254 | t->action, t->pid); |
691c8fb0 JA |
255 | break; |
256 | case BLK_TN_TIMESTAMP: | |
24653680 | 257 | dprint(FD_BLKTRACE, "got timestamp notify: %x, %d\n", |
d95b34a6 | 258 | t->action, t->pid); |
691c8fb0 | 259 | break; |
ff58fced JA |
260 | case BLK_TN_MESSAGE: |
261 | break; | |
691c8fb0 JA |
262 | default: |
263 | dprint(FD_BLKTRACE, "unknown trace act %x\n", t->action); | |
264 | break; | |
265 | } | |
266 | } | |
5b3023b8 | 267 | |
24653680 JA |
268 | static void handle_trace_discard(struct thread_data *td, |
269 | struct blk_io_trace *t, | |
270 | unsigned long long ttime, | |
26e616d0 | 271 | unsigned long *ios, unsigned int *rw_bs) |
ff58fced JA |
272 | { |
273 | struct io_piece *ipo = malloc(sizeof(*ipo)); | |
26e616d0 | 274 | unsigned int bs; |
89ac1d48 | 275 | int fileno; |
ff58fced | 276 | |
0d29de83 | 277 | init_ipo(ipo); |
26e616d0 | 278 | fileno = trace_add_file(td, t->device, &bs); |
ff58fced | 279 | |
24653680 | 280 | ios[DDIR_TRIM]++; |
26e616d0 JA |
281 | if (t->bytes > rw_bs[DDIR_TRIM]) |
282 | rw_bs[DDIR_TRIM] = t->bytes; | |
24653680 | 283 | |
ff58fced JA |
284 | td->o.size += t->bytes; |
285 | ||
286 | memset(ipo, 0, sizeof(*ipo)); | |
287 | INIT_FLIST_HEAD(&ipo->list); | |
288 | ||
26e616d0 | 289 | ipo->offset = t->sector * bs; |
0c63576e JA |
290 | if (td->o.replay_scale) |
291 | ipo->offset = ipo->offset / td->o.replay_scale; | |
a79f17bf | 292 | ipo_bytes_align(td->o.replay_align, ipo); |
ff58fced JA |
293 | ipo->len = t->bytes; |
294 | ipo->delay = ttime / 1000; | |
295 | ipo->ddir = DDIR_TRIM; | |
89ac1d48 | 296 | ipo->fileno = fileno; |
ff58fced JA |
297 | |
298 | dprint(FD_BLKTRACE, "store discard, off=%llu, len=%lu, delay=%lu\n", | |
299 | ipo->offset, ipo->len, | |
300 | ipo->delay); | |
301 | queue_io_piece(td, ipo); | |
302 | } | |
303 | ||
691c8fb0 JA |
304 | static void handle_trace_fs(struct thread_data *td, struct blk_io_trace *t, |
305 | unsigned long long ttime, unsigned long *ios, | |
26e616d0 | 306 | unsigned int *rw_bs) |
691c8fb0 | 307 | { |
26e616d0 | 308 | unsigned int bs; |
691c8fb0 | 309 | int rw; |
89ac1d48 | 310 | int fileno; |
5b3023b8 | 311 | |
26e616d0 | 312 | fileno = trace_add_file(td, t->device, &bs); |
5b3023b8 JA |
313 | |
314 | rw = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; | |
315 | ||
26e616d0 JA |
316 | if (t->bytes > rw_bs[rw]) |
317 | rw_bs[rw] = t->bytes; | |
5b3023b8 JA |
318 | |
319 | ios[rw]++; | |
320 | td->o.size += t->bytes; | |
26e616d0 | 321 | store_ipo(td, t->sector, t->bytes, rw, ttime, fileno, bs); |
cd991b9e JA |
322 | } |
323 | ||
691c8fb0 JA |
324 | /* |
325 | * We only care for queue traces, most of the others are side effects | |
326 | * due to internal workings of the block layer. | |
327 | */ | |
328 | static void handle_trace(struct thread_data *td, struct blk_io_trace *t, | |
24653680 | 329 | unsigned long *ios, unsigned int *bs) |
691c8fb0 | 330 | { |
24653680 | 331 | static unsigned long long last_ttime; |
0c63576e | 332 | unsigned long long delay = 0; |
24653680 | 333 | |
691c8fb0 JA |
334 | if ((t->action & 0xffff) != __BLK_TA_QUEUE) |
335 | return; | |
24653680 JA |
336 | |
337 | if (!(t->action & BLK_TC_ACT(BLK_TC_NOTIFY))) { | |
338 | if (!last_ttime || td->o.no_stall) { | |
339 | last_ttime = t->time; | |
340 | delay = 0; | |
341 | } else { | |
342 | delay = t->time - last_ttime; | |
343 | last_ttime = t->time; | |
344 | } | |
345 | } | |
691c8fb0 | 346 | |
0c63576e JA |
347 | t_bytes_align(&td->o, t); |
348 | ||
691c8fb0 | 349 | if (t->action & BLK_TC_ACT(BLK_TC_NOTIFY)) |
aec2de20 | 350 | handle_trace_notify(t); |
ff58fced | 351 | else if (t->action & BLK_TC_ACT(BLK_TC_DISCARD)) |
24653680 | 352 | handle_trace_discard(td, t, delay, ios, bs); |
691c8fb0 | 353 | else |
24653680 | 354 | handle_trace_fs(td, t, delay, ios, bs); |
691c8fb0 JA |
355 | } |
356 | ||
d95b34a6 JA |
357 | static void byteswap_trace(struct blk_io_trace *t) |
358 | { | |
359 | t->magic = fio_swap32(t->magic); | |
360 | t->sequence = fio_swap32(t->sequence); | |
361 | t->time = fio_swap64(t->time); | |
362 | t->sector = fio_swap64(t->sector); | |
363 | t->bytes = fio_swap32(t->bytes); | |
364 | t->action = fio_swap32(t->action); | |
365 | t->pid = fio_swap32(t->pid); | |
366 | t->device = fio_swap32(t->device); | |
367 | t->cpu = fio_swap32(t->cpu); | |
368 | t->error = fio_swap16(t->error); | |
369 | t->pdu_len = fio_swap16(t->pdu_len); | |
370 | } | |
371 | ||
24653680 JA |
372 | static int t_is_write(struct blk_io_trace *t) |
373 | { | |
374 | return (t->action & BLK_TC_ACT(BLK_TC_WRITE | BLK_TC_DISCARD)) != 0; | |
375 | } | |
376 | ||
a6eaf6c9 JA |
377 | static enum fio_ddir t_get_ddir(struct blk_io_trace *t) |
378 | { | |
379 | if (t->action & BLK_TC_ACT(BLK_TC_READ)) | |
380 | return DDIR_READ; | |
381 | else if (t->action & BLK_TC_ACT(BLK_TC_WRITE)) | |
382 | return DDIR_WRITE; | |
383 | else if (t->action & BLK_TC_ACT(BLK_TC_DISCARD)) | |
384 | return DDIR_TRIM; | |
385 | ||
386 | return DDIR_INVAL; | |
387 | } | |
388 | ||
389 | static void depth_inc(struct blk_io_trace *t, int *depth) | |
390 | { | |
391 | enum fio_ddir ddir; | |
392 | ||
393 | ddir = t_get_ddir(t); | |
394 | if (ddir != DDIR_INVAL) | |
395 | depth[ddir]++; | |
396 | } | |
397 | ||
398 | static void depth_dec(struct blk_io_trace *t, int *depth) | |
399 | { | |
400 | enum fio_ddir ddir; | |
401 | ||
402 | ddir = t_get_ddir(t); | |
403 | if (ddir != DDIR_INVAL) | |
404 | depth[ddir]--; | |
405 | } | |
406 | ||
407 | static void depth_end(struct blk_io_trace *t, int *this_depth, int *depth) | |
408 | { | |
409 | enum fio_ddir ddir = DDIR_INVAL; | |
410 | ||
411 | ddir = t_get_ddir(t); | |
412 | if (ddir != DDIR_INVAL) { | |
413 | depth[ddir] = max(depth[ddir], this_depth[ddir]); | |
414 | this_depth[ddir] = 0; | |
415 | } | |
416 | } | |
417 | ||
8c1fdf04 JA |
418 | /* |
419 | * Load a blktrace file by reading all the blk_io_trace entries, and storing | |
420 | * them as io_pieces like the fio text version would do. | |
421 | */ | |
d95b34a6 | 422 | int load_blktrace(struct thread_data *td, const char *filename, int need_swap) |
fb7b71a3 JA |
423 | { |
424 | struct blk_io_trace t; | |
24653680 JA |
425 | unsigned long ios[DDIR_RWDIR_CNT], skipped_writes; |
426 | unsigned int rw_bs[DDIR_RWDIR_CNT]; | |
e2887563 | 427 | struct fifo *fifo; |
5903e7b7 | 428 | int fd, i, old_state; |
89ac1d48 | 429 | struct fio_file *f; |
a6eaf6c9 | 430 | int this_depth[DDIR_RWDIR_CNT], depth[DDIR_RWDIR_CNT], max_depth; |
fb7b71a3 JA |
431 | |
432 | fd = open(filename, O_RDONLY); | |
433 | if (fd < 0) { | |
434 | td_verror(td, errno, "open blktrace file"); | |
435 | return 1; | |
436 | } | |
437 | ||
e2887563 JA |
438 | fifo = fifo_alloc(TRACE_FIFO_SIZE); |
439 | ||
8edd973d | 440 | old_state = td_bump_runstate(td, TD_SETTING_UP); |
5903e7b7 | 441 | |
6df8adaa JA |
442 | td->o.size = 0; |
443 | ||
a6eaf6c9 JA |
444 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { |
445 | ios[i] = 0; | |
446 | rw_bs[i] = 0; | |
447 | this_depth[i] = 0; | |
448 | depth[i] = 0; | |
449 | } | |
450 | ||
4241ea8f | 451 | skipped_writes = 0; |
fb7b71a3 | 452 | do { |
e2887563 | 453 | int ret = trace_fifo_get(td, fifo, fd, &t, sizeof(t)); |
fb7b71a3 | 454 | |
e2887563 | 455 | if (ret < 0) |
8c1fdf04 | 456 | goto err; |
e2887563 JA |
457 | else if (!ret) |
458 | break; | |
459 | else if (ret < (int) sizeof(t)) { | |
460 | log_err("fio: short fifo get\n"); | |
fb7b71a3 | 461 | break; |
fb7b71a3 JA |
462 | } |
463 | ||
d95b34a6 JA |
464 | if (need_swap) |
465 | byteswap_trace(&t); | |
466 | ||
fb7b71a3 | 467 | if ((t.magic & 0xffffff00) != BLK_IO_TRACE_MAGIC) { |
5ec10eaa JA |
468 | log_err("fio: bad magic in blktrace data: %x\n", |
469 | t.magic); | |
8c1fdf04 | 470 | goto err; |
fb7b71a3 JA |
471 | } |
472 | if ((t.magic & 0xff) != BLK_IO_TRACE_VERSION) { | |
5ec10eaa JA |
473 | log_err("fio: bad blktrace version %d\n", |
474 | t.magic & 0xff); | |
8c1fdf04 | 475 | goto err; |
fb7b71a3 | 476 | } |
f12b323f JA |
477 | ret = discard_pdu(td, fifo, fd, &t); |
478 | if (ret < 0) { | |
fb7b71a3 | 479 | td_verror(td, ret, "blktrace lseek"); |
8c1fdf04 | 480 | goto err; |
f12b323f JA |
481 | } else if (t.pdu_len != ret) { |
482 | log_err("fio: discarded %d of %d\n", ret, t.pdu_len); | |
483 | goto err; | |
fb7b71a3 | 484 | } |
691c8fb0 | 485 | if ((t.action & BLK_TC_ACT(BLK_TC_NOTIFY)) == 0) { |
eb5fdcf1 | 486 | if ((t.action & 0xffff) == __BLK_TA_QUEUE) |
a6eaf6c9 JA |
487 | depth_inc(&t, this_depth); |
488 | else if (((t.action & 0xffff) == __BLK_TA_BACKMERGE) || | |
489 | ((t.action & 0xffff) == __BLK_TA_FRONTMERGE)) | |
490 | depth_dec(&t, this_depth); | |
491 | else if ((t.action & 0xffff) == __BLK_TA_COMPLETE) | |
492 | depth_end(&t, this_depth, depth); | |
691c8fb0 | 493 | |
24653680 | 494 | if (t_is_write(&t) && read_only) { |
691c8fb0 | 495 | skipped_writes++; |
24653680 | 496 | continue; |
64bbb865 | 497 | } |
a6edd638 | 498 | } |
24653680 JA |
499 | |
500 | handle_trace(td, &t, ios, rw_bs); | |
fb7b71a3 JA |
501 | } while (1); |
502 | ||
85a47ca2 | 503 | for (i = 0; i < td->files_index; i++) { |
f01b34ae | 504 | f = td->files[i]; |
89ac1d48 | 505 | trace_add_open_close_event(td, f->fileno, FIO_LOG_CLOSE_FILE); |
85a47ca2 | 506 | } |
89ac1d48 | 507 | |
38470f85 | 508 | fifo_free(fifo); |
fb7b71a3 | 509 | close(fd); |
8c1fdf04 | 510 | |
8edd973d | 511 | td_restore_runstate(td, old_state); |
5903e7b7 | 512 | |
f01b34ae JA |
513 | if (!td->files_index) { |
514 | log_err("fio: did not find replay device(s)\n"); | |
515 | return 1; | |
516 | } | |
517 | ||
eb5fdcf1 JA |
518 | /* |
519 | * For stacked devices, we don't always get a COMPLETE event so | |
520 | * the depth grows to insane values. Limit it to something sane(r). | |
521 | */ | |
a6eaf6c9 JA |
522 | max_depth = 0; |
523 | for (i = 0; i < DDIR_RWDIR_CNT; i++) { | |
524 | if (depth[i] > 1024) | |
525 | depth[i] = 1024; | |
526 | else if (!depth[i] && ios[i]) | |
527 | depth[i] = 1; | |
528 | max_depth = max(depth[i], max_depth); | |
529 | } | |
eb5fdcf1 | 530 | |
4241ea8f | 531 | if (skipped_writes) |
5ec10eaa JA |
532 | log_err("fio: %s skips replay of %lu writes due to read-only\n", |
533 | td->o.name, skipped_writes); | |
4241ea8f | 534 | |
8c1fdf04 JA |
535 | if (!ios[DDIR_READ] && !ios[DDIR_WRITE]) { |
536 | log_err("fio: found no ios in blktrace data\n"); | |
537 | return 1; | |
24653680 | 538 | } else if (ios[DDIR_READ] && !ios[DDIR_WRITE]) { |
8c1fdf04 | 539 | td->o.td_ddir = TD_DDIR_READ; |
d84f8d49 JA |
540 | td->o.max_bs[DDIR_READ] = rw_bs[DDIR_READ]; |
541 | } else if (!ios[DDIR_READ] && ios[DDIR_WRITE]) { | |
8c1fdf04 | 542 | td->o.td_ddir = TD_DDIR_WRITE; |
d84f8d49 JA |
543 | td->o.max_bs[DDIR_WRITE] = rw_bs[DDIR_WRITE]; |
544 | } else { | |
8c1fdf04 | 545 | td->o.td_ddir = TD_DDIR_RW; |
d84f8d49 JA |
546 | td->o.max_bs[DDIR_READ] = rw_bs[DDIR_READ]; |
547 | td->o.max_bs[DDIR_WRITE] = rw_bs[DDIR_WRITE]; | |
24653680 | 548 | td->o.max_bs[DDIR_TRIM] = rw_bs[DDIR_TRIM]; |
d84f8d49 | 549 | } |
8c1fdf04 JA |
550 | |
551 | /* | |
552 | * We need to do direct/raw ios to the device, to avoid getting | |
76a00ec6 JA |
553 | * read-ahead in our way. But only do so if the minimum block size |
554 | * is a multiple of 4k, otherwise we don't know if it's safe to do so. | |
8c1fdf04 | 555 | */ |
76a00ec6 | 556 | if (!fio_option_is_set(&td->o, odirect) && !(td_min_bs(td) & 4095)) |
a6eaf6c9 | 557 | td->o.odirect = 1; |
8c1fdf04 | 558 | |
eb5fdcf1 | 559 | /* |
8a16f59b | 560 | * If depth wasn't manually set, use probed depth |
eb5fdcf1 | 561 | */ |
8a16f59b | 562 | if (!fio_option_is_set(&td->o, iodepth)) |
a6eaf6c9 | 563 | td->o.iodepth = td->o.iodepth_low = max_depth; |
eb5fdcf1 | 564 | |
fb7b71a3 | 565 | return 0; |
8c1fdf04 JA |
566 | err: |
567 | close(fd); | |
38470f85 | 568 | fifo_free(fifo); |
8c1fdf04 | 569 | return 1; |
fb7b71a3 | 570 | } |