Commit | Line | Data |
---|---|---|
d956a2cd JA |
1 | /* |
2 | * block queue tracing parse application | |
3 | * | |
4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> | |
46e37c55 | 5 | * Copyright (C) 2006 Jens Axboe <axboe@kernel.dk> |
d956a2cd JA |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | */ | |
d0ca268b JA |
22 | #include <sys/types.h> |
23 | #include <sys/stat.h> | |
24 | #include <unistd.h> | |
25 | #include <stdio.h> | |
26 | #include <fcntl.h> | |
27 | #include <stdlib.h> | |
8fc0abbc | 28 | #include <string.h> |
d5396421 | 29 | #include <getopt.h> |
412819ce JA |
30 | #include <errno.h> |
31 | #include <signal.h> | |
d69db225 | 32 | #include <locale.h> |
6e0073ed | 33 | #include <libgen.h> |
d0ca268b | 34 | |
8fc0abbc JA |
35 | #include "blktrace.h" |
36 | #include "rbtree.h" | |
bf0720af | 37 | #include "jhash.h" |
d0ca268b | 38 | |
cca113f2 | 39 | static char blkparse_version[] = "1.2.0"; |
52724a0e | 40 | |
492da111 AB |
41 | struct skip_info { |
42 | unsigned long start, end; | |
43 | struct skip_info *prev, *next; | |
44 | }; | |
45 | ||
e7c9f3ff | 46 | struct per_dev_info { |
f7bd1a9b | 47 | dev_t dev; |
e7c9f3ff NS |
48 | char *name; |
49 | ||
50 | int backwards; | |
51 | unsigned long long events; | |
20ed6177 | 52 | unsigned long long first_reported_time; |
e7c9f3ff | 53 | unsigned long long last_reported_time; |
287fa3d6 | 54 | unsigned long long last_read_time; |
e7c9f3ff | 55 | struct io_stats io_stats; |
2990e589 JA |
56 | unsigned long skips; |
57 | unsigned long long seq_skips; | |
649c7b66 JA |
58 | unsigned int max_depth[2]; |
59 | unsigned int cur_depth[2]; | |
e7c9f3ff | 60 | |
f7bd1a9b JA |
61 | struct rb_root rb_track; |
62 | ||
73877e12 | 63 | int nfiles; |
e7c9f3ff | 64 | int ncpus; |
824c2b39 JA |
65 | |
66 | unsigned long *cpu_map; | |
67 | unsigned int cpu_map_max; | |
68 | ||
e7c9f3ff NS |
69 | struct per_cpu_info *cpus; |
70 | }; | |
71 | ||
2990e589 JA |
72 | /* |
73 | * some duplicated effort here, we can unify this hash and the ppi hash later | |
74 | */ | |
75 | struct process_pid_map { | |
76 | pid_t pid; | |
77 | char comm[16]; | |
78 | struct process_pid_map *hash_next, *list_next; | |
79 | }; | |
80 | ||
81 | #define PPM_HASH_SHIFT (8) | |
82 | #define PPM_HASH_SIZE (1 << PPM_HASH_SHIFT) | |
83 | #define PPM_HASH_MASK (PPM_HASH_SIZE - 1) | |
84 | static struct process_pid_map *ppm_hash_table[PPM_HASH_SIZE]; | |
85 | ||
152f6476 | 86 | struct per_process_info { |
2990e589 | 87 | struct process_pid_map *ppm; |
152f6476 JA |
88 | struct io_stats io_stats; |
89 | struct per_process_info *hash_next, *list_next; | |
715d8021 | 90 | int more_than_one; |
50adc0ba JA |
91 | |
92 | /* | |
93 | * individual io stats | |
94 | */ | |
b9d40d6f JA |
95 | unsigned long long longest_allocation_wait[2]; |
96 | unsigned long long longest_dispatch_wait[2]; | |
97 | unsigned long long longest_completion_wait[2]; | |
d0ca268b JA |
98 | }; |
99 | ||
152f6476 | 100 | #define PPI_HASH_SHIFT (8) |
bf0720af JA |
101 | #define PPI_HASH_SIZE (1 << PPI_HASH_SHIFT) |
102 | #define PPI_HASH_MASK (PPI_HASH_SIZE - 1) | |
a7263b8f WZ |
103 | |
104 | enum { | |
105 | SORT_PROG_EVENT_N, /* Program Name */ | |
106 | SORT_PROG_EVENT_QKB, /* KB: Queued read and write */ | |
107 | SORT_PROG_EVENT_RKB, /* KB: Queued Read */ | |
108 | SORT_PROG_EVENT_WKB, /* KB: Queued Write */ | |
109 | SORT_PROG_EVENT_CKB, /* KB: Complete */ | |
110 | SORT_PROG_EVENT_QIO, /* IO: Queued read and write */ | |
111 | SORT_PROG_EVENT_RIO, /* IO: Queued Read */ | |
112 | SORT_PROG_EVENT_WIO, /* IO: Queued Write */ | |
113 | SORT_PROG_EVENT_CIO, /* IO: Complete */ | |
114 | }; | |
115 | ||
bf0720af | 116 | static struct per_process_info *ppi_hash_table[PPI_HASH_SIZE]; |
152f6476 | 117 | static struct per_process_info *ppi_list; |
886ecf0e | 118 | static int ppi_list_entries; |
152f6476 | 119 | |
d5396421 | 120 | static struct option l_opts[] = { |
98f8386b AB |
121 | { |
122 | .name = "act-mask", | |
123 | .has_arg = required_argument, | |
124 | .flag = NULL, | |
125 | .val = 'a' | |
126 | }, | |
127 | { | |
128 | .name = "set-mask", | |
129 | .has_arg = required_argument, | |
130 | .flag = NULL, | |
131 | .val = 'A' | |
132 | }, | |
d5396421 | 133 | { |
234db09d | 134 | .name = "batch", |
428683db | 135 | .has_arg = required_argument, |
d5396421 | 136 | .flag = NULL, |
234db09d | 137 | .val = 'b' |
d5396421 JA |
138 | }, |
139 | { | |
234db09d | 140 | .name = "input-directory", |
428683db | 141 | .has_arg = required_argument, |
d5396421 | 142 | .flag = NULL, |
234db09d | 143 | .val = 'D' |
d5396421 | 144 | }, |
79f19470 | 145 | { |
234db09d | 146 | .name = "dump-binary", |
428683db | 147 | .has_arg = required_argument, |
79f19470 | 148 | .flag = NULL, |
234db09d | 149 | .val = 'd' |
79f19470 | 150 | }, |
152f6476 | 151 | { |
234db09d AB |
152 | .name = "format", |
153 | .has_arg = required_argument, | |
152f6476 | 154 | .flag = NULL, |
234db09d | 155 | .val = 'f' |
152f6476 | 156 | }, |
7997c5b0 | 157 | { |
234db09d AB |
158 | .name = "format-spec", |
159 | .has_arg = required_argument, | |
7997c5b0 | 160 | .flag = NULL, |
234db09d | 161 | .val = 'F' |
7997c5b0 | 162 | }, |
1e1c60f1 | 163 | { |
234db09d | 164 | .name = "hash-by-name", |
428683db | 165 | .has_arg = no_argument, |
1e1c60f1 | 166 | .flag = NULL, |
234db09d | 167 | .val = 'h' |
1e1c60f1 | 168 | }, |
46e6968b | 169 | { |
234db09d | 170 | .name = "input", |
428683db | 171 | .has_arg = required_argument, |
46e6968b | 172 | .flag = NULL, |
234db09d | 173 | .val = 'i' |
46e6968b | 174 | }, |
19cfaf3f AB |
175 | { |
176 | .name = "no-msgs", | |
177 | .has_arg = no_argument, | |
178 | .flag = NULL, | |
179 | .val = 'M' | |
180 | }, | |
ab197ca7 | 181 | { |
234db09d | 182 | .name = "output", |
428683db | 183 | .has_arg = required_argument, |
ab197ca7 | 184 | .flag = NULL, |
234db09d | 185 | .val = 'o' |
ab197ca7 AB |
186 | }, |
187 | { | |
234db09d AB |
188 | .name = "no-text-output", |
189 | .has_arg = no_argument, | |
ab197ca7 | 190 | .flag = NULL, |
234db09d | 191 | .val = 'O' |
ab197ca7 | 192 | }, |
bf0720af | 193 | { |
234db09d | 194 | .name = "quiet", |
bf0720af JA |
195 | .has_arg = no_argument, |
196 | .flag = NULL, | |
234db09d | 197 | .val = 'q' |
bf0720af | 198 | }, |
7d1c0411 | 199 | { |
234db09d | 200 | .name = "per-program-stats", |
7d1c0411 JA |
201 | .has_arg = no_argument, |
202 | .flag = NULL, | |
234db09d | 203 | .val = 's' |
7d1c0411 | 204 | }, |
a7263b8f WZ |
205 | { |
206 | .name = "sort-program-stats", | |
207 | .has_arg = required_argument, | |
208 | .flag = NULL, | |
209 | .val = 'S' | |
210 | }, | |
52724a0e | 211 | { |
234db09d | 212 | .name = "track-ios", |
52724a0e JA |
213 | .has_arg = no_argument, |
214 | .flag = NULL, | |
234db09d | 215 | .val = 't' |
52724a0e | 216 | }, |
d1d7f15f | 217 | { |
234db09d | 218 | .name = "stopwatch", |
d1d7f15f JA |
219 | .has_arg = required_argument, |
220 | .flag = NULL, | |
234db09d | 221 | .val = 'w' |
d1d7f15f | 222 | }, |
a2594911 | 223 | { |
234db09d AB |
224 | .name = "verbose", |
225 | .has_arg = no_argument, | |
a2594911 | 226 | .flag = NULL, |
234db09d AB |
227 | .val = 'v' |
228 | }, | |
229 | { | |
230 | .name = "version", | |
231 | .has_arg = no_argument, | |
232 | .flag = NULL, | |
233 | .val = 'V' | |
a2594911 | 234 | }, |
71ef8b7c JA |
235 | { |
236 | .name = NULL, | |
237 | } | |
d5396421 JA |
238 | }; |
239 | ||
7997c5b0 JA |
240 | /* |
241 | * for sorting the displayed output | |
242 | */ | |
8fc0abbc JA |
243 | struct trace { |
244 | struct blk_io_trace *bit; | |
245 | struct rb_node rb_node; | |
cb2a1a62 | 246 | struct trace *next; |
a43c1c17 | 247 | unsigned long read_sequence; |
8fc0abbc JA |
248 | }; |
249 | ||
cb2a1a62 | 250 | static struct rb_root rb_sort_root; |
a649216c JA |
251 | static unsigned long rb_sort_entries; |
252 | ||
cb2a1a62 JA |
253 | static struct trace *trace_list; |
254 | ||
d36421e4 JA |
255 | /* |
256 | * allocation cache | |
257 | */ | |
258 | static struct blk_io_trace *bit_alloc_list; | |
259 | static struct trace *t_alloc_list; | |
260 | ||
7997c5b0 JA |
261 | /* |
262 | * for tracking individual ios | |
263 | */ | |
264 | struct io_track { | |
265 | struct rb_node rb_node; | |
266 | ||
2990e589 | 267 | struct process_pid_map *ppm; |
7997c5b0 | 268 | __u64 sector; |
95c15013 | 269 | unsigned long long allocation_time; |
7997c5b0 JA |
270 | unsigned long long queue_time; |
271 | unsigned long long dispatch_time; | |
272 | unsigned long long completion_time; | |
273 | }; | |
274 | ||
e7c9f3ff NS |
275 | static int ndevices; |
276 | static struct per_dev_info *devices; | |
277 | static char *get_dev_name(struct per_dev_info *, char *, int); | |
210824c3 | 278 | static int trace_rb_insert_last(struct per_dev_info *, struct trace *); |
d0ca268b | 279 | |
71d5d4c9 | 280 | FILE *ofp = NULL; |
e7c9f3ff | 281 | static char *output_name; |
d1d7f15f | 282 | static char *input_dir; |
e7c9f3ff NS |
283 | |
284 | static unsigned long long genesis_time; | |
287fa3d6 | 285 | static unsigned long long last_allowed_time; |
46e6968b | 286 | static unsigned long long stopwatch_start; /* start from zero by default */ |
bc171579 | 287 | static unsigned long long stopwatch_end = -1ULL; /* "infinity" */ |
a43c1c17 | 288 | static unsigned long read_sequence; |
152f6476 JA |
289 | |
290 | static int per_process_stats; | |
a7263b8f | 291 | static int per_process_stats_event = SORT_PROG_EVENT_N; |
cbc927b6 | 292 | static int per_device_and_cpu_stats = 1; |
7997c5b0 | 293 | static int track_ios; |
bf0720af | 294 | static int ppi_hash_by_pid = 1; |
57ea8602 | 295 | static int verbose; |
98f8386b | 296 | static unsigned int act_mask = -1U; |
cbc927b6 | 297 | static int stats_printed; |
19cfaf3f | 298 | static int bin_output_msgs = 1; |
86368eb5 | 299 | int data_is_native = -1; |
d0ca268b | 300 | |
346d8a74 | 301 | static FILE *dump_fp; |
a2594911 AB |
302 | static char *dump_binary; |
303 | ||
1d24fc14 JA |
304 | static unsigned int t_alloc_cache; |
305 | static unsigned int bit_alloc_cache; | |
306 | ||
7d747d22 | 307 | #define RB_BATCH_DEFAULT (512) |
e820abd7 | 308 | static unsigned int rb_batch = RB_BATCH_DEFAULT; |
79f19470 | 309 | |
e7c9f3ff | 310 | static int pipeline; |
67076cbc | 311 | static char *pipename; |
e7c9f3ff | 312 | |
234db09d AB |
313 | static int text_output = 1; |
314 | ||
412819ce JA |
315 | #define is_done() (*(volatile int *)(&done)) |
316 | static volatile int done; | |
317 | ||
7bd4fd0a OK |
318 | struct timespec abs_start_time; |
319 | static unsigned long long start_timestamp; | |
320 | ||
c701176c MP |
321 | static int have_drv_data = 0; |
322 | ||
bf0720af JA |
323 | #define JHASH_RANDOM (0x3af5f2ee) |
324 | ||
824c2b39 JA |
325 | #define CPUS_PER_LONG (8 * sizeof(unsigned long)) |
326 | #define CPU_IDX(cpu) ((cpu) / CPUS_PER_LONG) | |
327 | #define CPU_BIT(cpu) ((cpu) & (CPUS_PER_LONG - 1)) | |
328 | ||
a2594911 AB |
329 | static void output_binary(void *buf, int len) |
330 | { | |
331 | if (dump_binary) { | |
346d8a74 AB |
332 | size_t n = fwrite(buf, len, 1, dump_fp); |
333 | if (n != 1) { | |
a2594911 | 334 | perror(dump_binary); |
346d8a74 | 335 | fclose(dump_fp); |
a2594911 AB |
336 | dump_binary = NULL; |
337 | } | |
338 | } | |
339 | } | |
340 | ||
210824c3 JA |
341 | static void resize_cpu_info(struct per_dev_info *pdi, int cpu) |
342 | { | |
343 | struct per_cpu_info *cpus = pdi->cpus; | |
344 | int ncpus = pdi->ncpus; | |
345 | int new_count = cpu + 1; | |
346 | int new_space, size; | |
347 | char *new_start; | |
348 | ||
349 | size = new_count * sizeof(struct per_cpu_info); | |
350 | cpus = realloc(cpus, size); | |
351 | if (!cpus) { | |
352 | char name[20]; | |
353 | fprintf(stderr, "Out of memory, CPU info for device %s (%d)\n", | |
354 | get_dev_name(pdi, name, sizeof(name)), size); | |
355 | exit(1); | |
356 | } | |
357 | ||
358 | new_start = (char *)cpus + (ncpus * sizeof(struct per_cpu_info)); | |
359 | new_space = (new_count - ncpus) * sizeof(struct per_cpu_info); | |
360 | memset(new_start, 0, new_space); | |
361 | ||
362 | pdi->ncpus = new_count; | |
363 | pdi->cpus = cpus; | |
364 | ||
365 | for (new_count = 0; new_count < pdi->ncpus; new_count++) { | |
366 | struct per_cpu_info *pci = &pdi->cpus[new_count]; | |
367 | ||
368 | if (!pci->fd) { | |
369 | pci->fd = -1; | |
370 | memset(&pci->rb_last, 0, sizeof(pci->rb_last)); | |
371 | pci->rb_last_entries = 0; | |
372 | pci->last_sequence = -1; | |
373 | } | |
374 | } | |
375 | } | |
376 | ||
377 | static struct per_cpu_info *get_cpu_info(struct per_dev_info *pdi, int cpu) | |
378 | { | |
379 | struct per_cpu_info *pci; | |
380 | ||
381 | if (cpu >= pdi->ncpus) | |
382 | resize_cpu_info(pdi, cpu); | |
383 | ||
384 | pci = &pdi->cpus[cpu]; | |
385 | pci->cpu = cpu; | |
386 | return pci; | |
387 | } | |
388 | ||
389 | ||
390 | static int resize_devices(char *name) | |
391 | { | |
392 | int size = (ndevices + 1) * sizeof(struct per_dev_info); | |
393 | ||
394 | devices = realloc(devices, size); | |
395 | if (!devices) { | |
396 | fprintf(stderr, "Out of memory, device %s (%d)\n", name, size); | |
397 | return 1; | |
398 | } | |
399 | memset(&devices[ndevices], 0, sizeof(struct per_dev_info)); | |
400 | devices[ndevices].name = name; | |
401 | ndevices++; | |
402 | return 0; | |
403 | } | |
404 | ||
405 | static struct per_dev_info *get_dev_info(dev_t dev) | |
406 | { | |
407 | struct per_dev_info *pdi; | |
408 | int i; | |
409 | ||
410 | for (i = 0; i < ndevices; i++) { | |
411 | if (!devices[i].dev) | |
412 | devices[i].dev = dev; | |
413 | if (devices[i].dev == dev) | |
414 | return &devices[i]; | |
415 | } | |
416 | ||
417 | if (resize_devices(NULL)) | |
418 | return NULL; | |
419 | ||
420 | pdi = &devices[ndevices - 1]; | |
421 | pdi->dev = dev; | |
422 | pdi->first_reported_time = 0; | |
423 | pdi->last_read_time = 0; | |
210824c3 JA |
424 | |
425 | return pdi; | |
426 | } | |
427 | ||
66930177 | 428 | static void insert_skip(struct per_cpu_info *pci, unsigned long start, |
492da111 AB |
429 | unsigned long end) |
430 | { | |
431 | struct skip_info *sip; | |
432 | ||
66930177 | 433 | for (sip = pci->skips_tail; sip != NULL; sip = sip->prev) { |
492da111 AB |
434 | if (end == (sip->start - 1)) { |
435 | sip->start = start; | |
436 | return; | |
437 | } else if (start == (sip->end + 1)) { | |
438 | sip->end = end; | |
439 | return; | |
440 | } | |
441 | } | |
442 | ||
443 | sip = malloc(sizeof(struct skip_info)); | |
444 | sip->start = start; | |
445 | sip->end = end; | |
446 | sip->prev = sip->next = NULL; | |
66930177 JA |
447 | if (pci->skips_tail == NULL) |
448 | pci->skips_head = pci->skips_tail = sip; | |
492da111 | 449 | else { |
66930177 JA |
450 | sip->prev = pci->skips_tail; |
451 | pci->skips_tail->next = sip; | |
452 | pci->skips_tail = sip; | |
492da111 AB |
453 | } |
454 | } | |
455 | ||
66930177 | 456 | static void remove_sip(struct per_cpu_info *pci, struct skip_info *sip) |
492da111 AB |
457 | { |
458 | if (sip->prev == NULL) { | |
459 | if (sip->next == NULL) | |
66930177 | 460 | pci->skips_head = pci->skips_tail = NULL; |
492da111 | 461 | else { |
66930177 | 462 | pci->skips_head = sip->next; |
492da111 AB |
463 | sip->next->prev = NULL; |
464 | } | |
465 | } else if (sip->next == NULL) { | |
66930177 | 466 | pci->skips_tail = sip->prev; |
492da111 AB |
467 | sip->prev->next = NULL; |
468 | } else { | |
469 | sip->prev->next = sip->next; | |
470 | sip->next->prev = sip->prev; | |
471 | } | |
472 | ||
473 | sip->prev = sip->next = NULL; | |
474 | free(sip); | |
475 | } | |
476 | ||
477 | #define IN_SKIP(sip,seq) (((sip)->start <= (seq)) && ((seq) <= sip->end)) | |
66930177 | 478 | static int check_current_skips(struct per_cpu_info *pci, unsigned long seq) |
492da111 AB |
479 | { |
480 | struct skip_info *sip; | |
481 | ||
66930177 JA |
482 | for (sip = pci->skips_tail; sip != NULL; sip = sip->prev) { |
483 | if (IN_SKIP(sip, seq)) { | |
492da111 AB |
484 | if (sip->start == seq) { |
485 | if (sip->end == seq) | |
66930177 | 486 | remove_sip(pci, sip); |
492da111 AB |
487 | else |
488 | sip->start += 1; | |
489 | } else if (sip->end == seq) | |
490 | sip->end -= 1; | |
491 | else { | |
492 | sip->end = seq - 1; | |
66930177 | 493 | insert_skip(pci, seq + 1, sip->end); |
492da111 AB |
494 | } |
495 | return 1; | |
496 | } | |
497 | } | |
66930177 | 498 | |
492da111 AB |
499 | return 0; |
500 | } | |
501 | ||
502 | static void collect_pdi_skips(struct per_dev_info *pdi) | |
503 | { | |
504 | struct skip_info *sip; | |
66930177 | 505 | int cpu; |
492da111 AB |
506 | |
507 | pdi->skips = 0; | |
508 | pdi->seq_skips = 0; | |
66930177 JA |
509 | |
510 | for (cpu = 0; cpu < pdi->ncpus; cpu++) { | |
511 | struct per_cpu_info *pci = &pdi->cpus[cpu]; | |
512 | ||
513 | for (sip = pci->skips_head; sip != NULL; sip = sip->next) { | |
514 | pdi->skips++; | |
515 | pdi->seq_skips += (sip->end - sip->start + 1); | |
516 | if (verbose) | |
517 | fprintf(stderr,"(%d,%d): skipping %lu -> %lu\n", | |
518 | MAJOR(pdi->dev), MINOR(pdi->dev), | |
519 | sip->start, sip->end); | |
520 | } | |
492da111 AB |
521 | } |
522 | } | |
523 | ||
824c2b39 JA |
524 | static void cpu_mark_online(struct per_dev_info *pdi, unsigned int cpu) |
525 | { | |
526 | if (cpu >= pdi->cpu_map_max || !pdi->cpu_map) { | |
527 | int new_max = (cpu + CPUS_PER_LONG) & ~(CPUS_PER_LONG - 1); | |
528 | unsigned long *map = malloc(new_max / sizeof(long)); | |
529 | ||
530 | memset(map, 0, new_max / sizeof(long)); | |
531 | ||
532 | if (pdi->cpu_map) { | |
533 | memcpy(map, pdi->cpu_map, pdi->cpu_map_max / sizeof(long)); | |
534 | free(pdi->cpu_map); | |
535 | } | |
536 | ||
537 | pdi->cpu_map = map; | |
538 | pdi->cpu_map_max = new_max; | |
539 | } | |
540 | ||
541 | pdi->cpu_map[CPU_IDX(cpu)] |= (1UL << CPU_BIT(cpu)); | |
542 | } | |
543 | ||
544 | static inline void cpu_mark_offline(struct per_dev_info *pdi, int cpu) | |
545 | { | |
546 | pdi->cpu_map[CPU_IDX(cpu)] &= ~(1UL << CPU_BIT(cpu)); | |
547 | } | |
548 | ||
549 | static inline int cpu_is_online(struct per_dev_info *pdi, int cpu) | |
550 | { | |
551 | return (pdi->cpu_map[CPU_IDX(cpu)] & (1UL << CPU_BIT(cpu))) != 0; | |
552 | } | |
553 | ||
bfc70ad5 JA |
554 | static inline int ppm_hash_pid(pid_t pid) |
555 | { | |
556 | return jhash_1word(pid, JHASH_RANDOM) & PPM_HASH_MASK; | |
557 | } | |
558 | ||
559 | static struct process_pid_map *find_ppm(pid_t pid) | |
560 | { | |
561 | const int hash_idx = ppm_hash_pid(pid); | |
562 | struct process_pid_map *ppm; | |
563 | ||
564 | ppm = ppm_hash_table[hash_idx]; | |
565 | while (ppm) { | |
566 | if (ppm->pid == pid) | |
567 | return ppm; | |
568 | ||
569 | ppm = ppm->hash_next; | |
570 | } | |
571 | ||
572 | return NULL; | |
573 | } | |
574 | ||
ebe2d1aa | 575 | static struct process_pid_map *add_ppm_hash(pid_t pid, const char *name) |
bfc70ad5 JA |
576 | { |
577 | const int hash_idx = ppm_hash_pid(pid); | |
578 | struct process_pid_map *ppm; | |
579 | ||
580 | ppm = find_ppm(pid); | |
248eac8f JA |
581 | if (!ppm) { |
582 | ppm = malloc(sizeof(*ppm)); | |
583 | memset(ppm, 0, sizeof(*ppm)); | |
584 | ppm->pid = pid; | |
d324757e ES |
585 | memset(ppm->comm, 0, sizeof(ppm->comm)); |
586 | strncpy(ppm->comm, name, sizeof(ppm->comm)); | |
587 | ppm->comm[sizeof(ppm->comm) - 1] = '\0'; | |
248eac8f JA |
588 | ppm->hash_next = ppm_hash_table[hash_idx]; |
589 | ppm_hash_table[hash_idx] = ppm; | |
bfc70ad5 | 590 | } |
ebe2d1aa JA |
591 | |
592 | return ppm; | |
bfc70ad5 JA |
593 | } |
594 | ||
7bd4fd0a OK |
595 | static void handle_notify(struct blk_io_trace *bit) |
596 | { | |
597 | void *payload = (caddr_t) bit + sizeof(*bit); | |
598 | __u32 two32[2]; | |
599 | ||
600 | switch (bit->action) { | |
601 | case BLK_TN_PROCESS: | |
602 | add_ppm_hash(bit->pid, payload); | |
603 | break; | |
604 | ||
605 | case BLK_TN_TIMESTAMP: | |
606 | if (bit->pdu_len != sizeof(two32)) | |
607 | return; | |
608 | memcpy(two32, payload, sizeof(two32)); | |
609 | if (!data_is_native) { | |
610 | two32[0] = be32_to_cpu(two32[0]); | |
611 | two32[1] = be32_to_cpu(two32[1]); | |
612 | } | |
613 | start_timestamp = bit->time; | |
614 | abs_start_time.tv_sec = two32[0]; | |
615 | abs_start_time.tv_nsec = two32[1]; | |
616 | if (abs_start_time.tv_nsec < 0) { | |
617 | abs_start_time.tv_sec--; | |
618 | abs_start_time.tv_nsec += 1000000000; | |
619 | } | |
620 | ||
621 | break; | |
622 | ||
1a15f6a8 AB |
623 | case BLK_TN_MESSAGE: |
624 | if (bit->pdu_len > 0) { | |
625 | char msg[bit->pdu_len+1]; | |
626 | ||
627 | memcpy(msg, (char *)payload, bit->pdu_len); | |
628 | msg[bit->pdu_len] = '\0'; | |
629 | ||
630 | fprintf(ofp, | |
631 | "%3d,%-3d %2d %8s %5d.%09lu %5u %2s %3s %s\n", | |
632 | MAJOR(bit->device), MINOR(bit->device), | |
633 | bit->cpu, "0", (int) SECONDS(bit->time), | |
634 | (unsigned long) NANO_SECONDS(bit->time), | |
635 | 0, "m", "N", msg); | |
636 | } | |
637 | break; | |
638 | ||
7bd4fd0a OK |
639 | default: |
640 | /* Ignore unknown notify events */ | |
641 | ; | |
642 | } | |
643 | } | |
644 | ||
bfc70ad5 JA |
645 | char *find_process_name(pid_t pid) |
646 | { | |
647 | struct process_pid_map *ppm = find_ppm(pid); | |
648 | ||
649 | if (ppm) | |
650 | return ppm->comm; | |
651 | ||
652 | return NULL; | |
653 | } | |
654 | ||
9e4cd1b8 | 655 | static inline int ppi_hash_pid(pid_t pid) |
bf0720af JA |
656 | { |
657 | return jhash_1word(pid, JHASH_RANDOM) & PPI_HASH_MASK; | |
658 | } | |
659 | ||
660 | static inline int ppi_hash_name(const char *name) | |
152f6476 | 661 | { |
bf0720af JA |
662 | return jhash(name, 16, JHASH_RANDOM) & PPI_HASH_MASK; |
663 | } | |
664 | ||
665 | static inline int ppi_hash(struct per_process_info *ppi) | |
666 | { | |
2990e589 JA |
667 | struct process_pid_map *ppm = ppi->ppm; |
668 | ||
bf0720af | 669 | if (ppi_hash_by_pid) |
2990e589 | 670 | return ppi_hash_pid(ppm->pid); |
bf0720af | 671 | |
2990e589 | 672 | return ppi_hash_name(ppm->comm); |
152f6476 JA |
673 | } |
674 | ||
bfc70ad5 | 675 | static inline void add_ppi_to_hash(struct per_process_info *ppi) |
152f6476 | 676 | { |
bf0720af | 677 | const int hash_idx = ppi_hash(ppi); |
152f6476 | 678 | |
bf0720af JA |
679 | ppi->hash_next = ppi_hash_table[hash_idx]; |
680 | ppi_hash_table[hash_idx] = ppi; | |
152f6476 JA |
681 | } |
682 | ||
bfc70ad5 | 683 | static inline void add_ppi_to_list(struct per_process_info *ppi) |
152f6476 JA |
684 | { |
685 | ppi->list_next = ppi_list; | |
686 | ppi_list = ppi; | |
886ecf0e | 687 | ppi_list_entries++; |
152f6476 JA |
688 | } |
689 | ||
bfc70ad5 | 690 | static struct per_process_info *find_ppi_by_name(char *name) |
bf0720af JA |
691 | { |
692 | const int hash_idx = ppi_hash_name(name); | |
693 | struct per_process_info *ppi; | |
694 | ||
695 | ppi = ppi_hash_table[hash_idx]; | |
696 | while (ppi) { | |
2990e589 JA |
697 | struct process_pid_map *ppm = ppi->ppm; |
698 | ||
699 | if (!strcmp(ppm->comm, name)) | |
bf0720af JA |
700 | return ppi; |
701 | ||
702 | ppi = ppi->hash_next; | |
703 | } | |
704 | ||
705 | return NULL; | |
706 | } | |
707 | ||
9e4cd1b8 | 708 | static struct per_process_info *find_ppi_by_pid(pid_t pid) |
152f6476 | 709 | { |
bf0720af | 710 | const int hash_idx = ppi_hash_pid(pid); |
152f6476 JA |
711 | struct per_process_info *ppi; |
712 | ||
bf0720af | 713 | ppi = ppi_hash_table[hash_idx]; |
152f6476 | 714 | while (ppi) { |
2990e589 JA |
715 | struct process_pid_map *ppm = ppi->ppm; |
716 | ||
717 | if (ppm->pid == pid) | |
152f6476 JA |
718 | return ppi; |
719 | ||
720 | ppi = ppi->hash_next; | |
721 | } | |
722 | ||
723 | return NULL; | |
724 | } | |
725 | ||
9e4cd1b8 | 726 | static struct per_process_info *find_ppi(pid_t pid) |
bf0720af | 727 | { |
715d8021 | 728 | struct per_process_info *ppi; |
bfc70ad5 | 729 | char *name; |
715d8021 | 730 | |
bf0720af | 731 | if (ppi_hash_by_pid) |
bfc70ad5 JA |
732 | return find_ppi_by_pid(pid); |
733 | ||
734 | name = find_process_name(pid); | |
735 | if (!name) | |
736 | return NULL; | |
bf0720af | 737 | |
bfc70ad5 | 738 | ppi = find_ppi_by_name(name); |
2990e589 | 739 | if (ppi && ppi->ppm->pid != pid) |
715d8021 JA |
740 | ppi->more_than_one = 1; |
741 | ||
742 | return ppi; | |
bf0720af JA |
743 | } |
744 | ||
210824c3 JA |
745 | /* |
746 | * struct trace and blktrace allocation cache, we do potentially | |
747 | * millions of mallocs for these structures while only using at most | |
748 | * a few thousand at the time | |
749 | */ | |
750 | static inline void t_free(struct trace *t) | |
751 | { | |
752 | if (t_alloc_cache < 1024) { | |
753 | t->next = t_alloc_list; | |
754 | t_alloc_list = t; | |
755 | t_alloc_cache++; | |
756 | } else | |
757 | free(t); | |
758 | } | |
759 | ||
760 | static inline struct trace *t_alloc(void) | |
761 | { | |
762 | struct trace *t = t_alloc_list; | |
763 | ||
764 | if (t) { | |
765 | t_alloc_list = t->next; | |
766 | t_alloc_cache--; | |
767 | return t; | |
768 | } | |
769 | ||
770 | return malloc(sizeof(*t)); | |
771 | } | |
772 | ||
773 | static inline void bit_free(struct blk_io_trace *bit) | |
774 | { | |
775 | if (bit_alloc_cache < 1024 && !bit->pdu_len) { | |
776 | /* | |
777 | * abuse a 64-bit field for a next pointer for the free item | |
778 | */ | |
779 | bit->time = (__u64) (unsigned long) bit_alloc_list; | |
780 | bit_alloc_list = (struct blk_io_trace *) bit; | |
781 | bit_alloc_cache++; | |
782 | } else | |
783 | free(bit); | |
784 | } | |
785 | ||
786 | static inline struct blk_io_trace *bit_alloc(void) | |
787 | { | |
788 | struct blk_io_trace *bit = bit_alloc_list; | |
789 | ||
790 | if (bit) { | |
791 | bit_alloc_list = (struct blk_io_trace *) (unsigned long) \ | |
792 | bit->time; | |
793 | bit_alloc_cache--; | |
794 | return bit; | |
795 | } | |
796 | ||
797 | return malloc(sizeof(*bit)); | |
798 | } | |
799 | ||
800 | static inline void __put_trace_last(struct per_dev_info *pdi, struct trace *t) | |
801 | { | |
802 | struct per_cpu_info *pci = get_cpu_info(pdi, t->bit->cpu); | |
803 | ||
804 | rb_erase(&t->rb_node, &pci->rb_last); | |
805 | pci->rb_last_entries--; | |
806 | ||
807 | bit_free(t->bit); | |
808 | t_free(t); | |
809 | } | |
810 | ||
811 | static void put_trace(struct per_dev_info *pdi, struct trace *t) | |
812 | { | |
813 | rb_erase(&t->rb_node, &rb_sort_root); | |
814 | rb_sort_entries--; | |
815 | ||
816 | trace_rb_insert_last(pdi, t); | |
817 | } | |
818 | ||
89482da6 | 819 | static inline int trace_rb_insert(struct trace *t, struct rb_root *root) |
7997c5b0 | 820 | { |
2a1b3424 | 821 | struct rb_node **p = &root->rb_node; |
7997c5b0 JA |
822 | struct rb_node *parent = NULL; |
823 | struct trace *__t; | |
824 | ||
825 | while (*p) { | |
826 | parent = *p; | |
2a1b3424 | 827 | |
7997c5b0 JA |
828 | __t = rb_entry(parent, struct trace, rb_node); |
829 | ||
89482da6 JA |
830 | if (t->bit->time < __t->bit->time) |
831 | p = &(*p)->rb_left; | |
832 | else if (t->bit->time > __t->bit->time) | |
833 | p = &(*p)->rb_right; | |
834 | else if (t->bit->device < __t->bit->device) | |
e7c9f3ff NS |
835 | p = &(*p)->rb_left; |
836 | else if (t->bit->device > __t->bit->device) | |
837 | p = &(*p)->rb_right; | |
dcf0f7ed JA |
838 | else if (t->bit->sequence < __t->bit->sequence) |
839 | p = &(*p)->rb_left; | |
0b07f23e | 840 | else /* >= sequence */ |
dcf0f7ed | 841 | p = &(*p)->rb_right; |
7997c5b0 JA |
842 | } |
843 | ||
844 | rb_link_node(&t->rb_node, parent, p); | |
2a1b3424 | 845 | rb_insert_color(&t->rb_node, root); |
7997c5b0 JA |
846 | return 0; |
847 | } | |
848 | ||
2a1b3424 | 849 | static inline int trace_rb_insert_sort(struct trace *t) |
e3556946 | 850 | { |
89482da6 | 851 | if (!trace_rb_insert(t, &rb_sort_root)) { |
2a1b3424 JA |
852 | rb_sort_entries++; |
853 | return 0; | |
854 | } | |
855 | ||
856 | return 1; | |
857 | } | |
858 | ||
210824c3 | 859 | static int trace_rb_insert_last(struct per_dev_info *pdi, struct trace *t) |
2a1b3424 | 860 | { |
210824c3 JA |
861 | struct per_cpu_info *pci = get_cpu_info(pdi, t->bit->cpu); |
862 | ||
863 | if (trace_rb_insert(t, &pci->rb_last)) | |
864 | return 1; | |
865 | ||
866 | pci->rb_last_entries++; | |
867 | ||
868 | if (pci->rb_last_entries > rb_batch * pdi->nfiles) { | |
869 | struct rb_node *n = rb_first(&pci->rb_last); | |
870 | ||
871 | t = rb_entry(n, struct trace, rb_node); | |
872 | __put_trace_last(pdi, t); | |
2a1b3424 JA |
873 | } |
874 | ||
210824c3 | 875 | return 0; |
2a1b3424 JA |
876 | } |
877 | ||
878 | static struct trace *trace_rb_find(dev_t device, unsigned long sequence, | |
879 | struct rb_root *root, int order) | |
880 | { | |
881 | struct rb_node *n = root->rb_node; | |
882 | struct rb_node *prev = NULL; | |
e3556946 JA |
883 | struct trace *__t; |
884 | ||
2a1b3424 JA |
885 | while (n) { |
886 | __t = rb_entry(n, struct trace, rb_node); | |
887 | prev = n; | |
e3556946 | 888 | |
0583b6a2 | 889 | if (device < __t->bit->device) |
2a1b3424 | 890 | n = n->rb_left; |
0583b6a2 | 891 | else if (device > __t->bit->device) |
2a1b3424 | 892 | n = n->rb_right; |
0583b6a2 | 893 | else if (sequence < __t->bit->sequence) |
2a1b3424 | 894 | n = n->rb_left; |
e3556946 | 895 | else if (sequence > __t->bit->sequence) |
2a1b3424 | 896 | n = n->rb_right; |
e3556946 JA |
897 | else |
898 | return __t; | |
899 | } | |
900 | ||
2a1b3424 JA |
901 | /* |
902 | * hack - the list may not be sequence ordered because some | |
903 | * events don't have sequence and time matched. so we end up | |
904 | * being a little off in the rb lookup here, because we don't | |
905 | * know the time we are looking for. compensate by browsing | |
906 | * a little ahead from the last entry to find the match | |
907 | */ | |
908 | if (order && prev) { | |
909 | int max = 5; | |
910 | ||
911 | while (((n = rb_next(prev)) != NULL) && max--) { | |
912 | __t = rb_entry(n, struct trace, rb_node); | |
492da111 | 913 | |
2a1b3424 JA |
914 | if (__t->bit->device == device && |
915 | __t->bit->sequence == sequence) | |
916 | return __t; | |
917 | ||
918 | prev = n; | |
919 | } | |
920 | } | |
492da111 | 921 | |
e3556946 JA |
922 | return NULL; |
923 | } | |
924 | ||
2a1b3424 | 925 | static inline struct trace *trace_rb_find_last(struct per_dev_info *pdi, |
210824c3 | 926 | struct per_cpu_info *pci, |
2a1b3424 JA |
927 | unsigned long seq) |
928 | { | |
210824c3 | 929 | return trace_rb_find(pdi->dev, seq, &pci->rb_last, 0); |
2a1b3424 JA |
930 | } |
931 | ||
f7bd1a9b | 932 | static inline int track_rb_insert(struct per_dev_info *pdi,struct io_track *iot) |
7997c5b0 | 933 | { |
f7bd1a9b | 934 | struct rb_node **p = &pdi->rb_track.rb_node; |
7997c5b0 JA |
935 | struct rb_node *parent = NULL; |
936 | struct io_track *__iot; | |
937 | ||
938 | while (*p) { | |
939 | parent = *p; | |
7997c5b0 JA |
940 | __iot = rb_entry(parent, struct io_track, rb_node); |
941 | ||
f7bd1a9b | 942 | if (iot->sector < __iot->sector) |
7997c5b0 JA |
943 | p = &(*p)->rb_left; |
944 | else if (iot->sector > __iot->sector) | |
945 | p = &(*p)->rb_right; | |
946 | else { | |
e7c9f3ff | 947 | fprintf(stderr, |
ab197ca7 AB |
948 | "sector alias (%Lu) on device %d,%d!\n", |
949 | (unsigned long long) iot->sector, | |
f7bd1a9b | 950 | MAJOR(pdi->dev), MINOR(pdi->dev)); |
7997c5b0 JA |
951 | return 1; |
952 | } | |
953 | } | |
954 | ||
955 | rb_link_node(&iot->rb_node, parent, p); | |
f7bd1a9b | 956 | rb_insert_color(&iot->rb_node, &pdi->rb_track); |
7997c5b0 JA |
957 | return 0; |
958 | } | |
959 | ||
f7bd1a9b | 960 | static struct io_track *__find_track(struct per_dev_info *pdi, __u64 sector) |
7997c5b0 | 961 | { |
f7bd1a9b | 962 | struct rb_node *n = pdi->rb_track.rb_node; |
7997c5b0 JA |
963 | struct io_track *__iot; |
964 | ||
2a1b3424 JA |
965 | while (n) { |
966 | __iot = rb_entry(n, struct io_track, rb_node); | |
7997c5b0 | 967 | |
f7bd1a9b | 968 | if (sector < __iot->sector) |
2a1b3424 | 969 | n = n->rb_left; |
7997c5b0 | 970 | else if (sector > __iot->sector) |
2a1b3424 | 971 | n = n->rb_right; |
7997c5b0 JA |
972 | else |
973 | return __iot; | |
974 | } | |
975 | ||
976 | return NULL; | |
977 | } | |
978 | ||
9e4cd1b8 | 979 | static struct io_track *find_track(struct per_dev_info *pdi, pid_t pid, |
bfc70ad5 | 980 | __u64 sector) |
7997c5b0 | 981 | { |
916b5501 | 982 | struct io_track *iot; |
7997c5b0 | 983 | |
f7bd1a9b | 984 | iot = __find_track(pdi, sector); |
7997c5b0 JA |
985 | if (!iot) { |
986 | iot = malloc(sizeof(*iot)); | |
2990e589 | 987 | iot->ppm = find_ppm(pid); |
ebe2d1aa JA |
988 | if (!iot->ppm) |
989 | iot->ppm = add_ppm_hash(pid, "unknown"); | |
7997c5b0 | 990 | iot->sector = sector; |
f7bd1a9b | 991 | track_rb_insert(pdi, iot); |
7997c5b0 JA |
992 | } |
993 | ||
994 | return iot; | |
995 | } | |
996 | ||
f7bd1a9b JA |
997 | static void log_track_frontmerge(struct per_dev_info *pdi, |
998 | struct blk_io_trace *t) | |
2e3e8ded JA |
999 | { |
1000 | struct io_track *iot; | |
1001 | ||
1002 | if (!track_ios) | |
1003 | return; | |
2e3e8ded | 1004 | |
ae957cbc | 1005 | iot = __find_track(pdi, t->sector + t_sec(t)); |
cb2a1a62 | 1006 | if (!iot) { |
57ea8602 JA |
1007 | if (verbose) |
1008 | fprintf(stderr, "merge not found for (%d,%d): %llu\n", | |
1009 | MAJOR(pdi->dev), MINOR(pdi->dev), | |
1010 | (unsigned long long) t->sector + t_sec(t)); | |
cb2a1a62 | 1011 | return; |
2e3e8ded | 1012 | } |
cb2a1a62 | 1013 | |
f7bd1a9b | 1014 | rb_erase(&iot->rb_node, &pdi->rb_track); |
ae957cbc | 1015 | iot->sector -= t_sec(t); |
f7bd1a9b | 1016 | track_rb_insert(pdi, iot); |
2e3e8ded JA |
1017 | } |
1018 | ||
f7bd1a9b | 1019 | static void log_track_getrq(struct per_dev_info *pdi, struct blk_io_trace *t) |
2e3e8ded JA |
1020 | { |
1021 | struct io_track *iot; | |
1022 | ||
1023 | if (!track_ios) | |
1024 | return; | |
1025 | ||
bfc70ad5 | 1026 | iot = find_track(pdi, t->pid, t->sector); |
95c15013 JA |
1027 | iot->allocation_time = t->time; |
1028 | } | |
1029 | ||
753f9091 JA |
1030 | static inline int is_remapper(struct per_dev_info *pdi) |
1031 | { | |
1032 | int major = MAJOR(pdi->dev); | |
1033 | ||
1034 | return (major == 253 || major == 9); | |
1035 | } | |
1036 | ||
1037 | /* | |
1038 | * for md/dm setups, the interesting cycle is Q -> C. So track queueing | |
1039 | * time here, as dispatch time | |
1040 | */ | |
1041 | static void log_track_queue(struct per_dev_info *pdi, struct blk_io_trace *t) | |
1042 | { | |
1043 | struct io_track *iot; | |
1044 | ||
1045 | if (!track_ios) | |
1046 | return; | |
1047 | if (!is_remapper(pdi)) | |
1048 | return; | |
1049 | ||
bfc70ad5 | 1050 | iot = find_track(pdi, t->pid, t->sector); |
753f9091 JA |
1051 | iot->dispatch_time = t->time; |
1052 | } | |
1053 | ||
95c15013 | 1054 | /* |
b6076a9b | 1055 | * return time between rq allocation and insertion |
95c15013 | 1056 | */ |
f7bd1a9b JA |
1057 | static unsigned long long log_track_insert(struct per_dev_info *pdi, |
1058 | struct blk_io_trace *t) | |
95c15013 | 1059 | { |
50adc0ba | 1060 | unsigned long long elapsed; |
95c15013 JA |
1061 | struct io_track *iot; |
1062 | ||
1063 | if (!track_ios) | |
1064 | return -1; | |
1065 | ||
bfc70ad5 | 1066 | iot = find_track(pdi, t->pid, t->sector); |
2e3e8ded | 1067 | iot->queue_time = t->time; |
acd70d21 JA |
1068 | |
1069 | if (!iot->allocation_time) | |
1070 | return -1; | |
1071 | ||
50adc0ba JA |
1072 | elapsed = iot->queue_time - iot->allocation_time; |
1073 | ||
1074 | if (per_process_stats) { | |
2990e589 | 1075 | struct per_process_info *ppi = find_ppi(iot->ppm->pid); |
b9d40d6f | 1076 | int w = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; |
50adc0ba | 1077 | |
b9d40d6f JA |
1078 | if (ppi && elapsed > ppi->longest_allocation_wait[w]) |
1079 | ppi->longest_allocation_wait[w] = elapsed; | |
50adc0ba JA |
1080 | } |
1081 | ||
1082 | return elapsed; | |
2e3e8ded JA |
1083 | } |
1084 | ||
1085 | /* | |
1086 | * return time between queue and issue | |
1087 | */ | |
f7bd1a9b JA |
1088 | static unsigned long long log_track_issue(struct per_dev_info *pdi, |
1089 | struct blk_io_trace *t) | |
2e3e8ded | 1090 | { |
50adc0ba | 1091 | unsigned long long elapsed; |
2e3e8ded JA |
1092 | struct io_track *iot; |
1093 | ||
1094 | if (!track_ios) | |
1095 | return -1; | |
1096 | if ((t->action & BLK_TC_ACT(BLK_TC_FS)) == 0) | |
1097 | return -1; | |
1098 | ||
f7bd1a9b | 1099 | iot = __find_track(pdi, t->sector); |
cb2a1a62 | 1100 | if (!iot) { |
57ea8602 JA |
1101 | if (verbose) |
1102 | fprintf(stderr, "issue not found for (%d,%d): %llu\n", | |
1103 | MAJOR(pdi->dev), MINOR(pdi->dev), | |
1104 | (unsigned long long) t->sector); | |
2e3e8ded | 1105 | return -1; |
cb2a1a62 | 1106 | } |
2e3e8ded JA |
1107 | |
1108 | iot->dispatch_time = t->time; | |
50adc0ba JA |
1109 | elapsed = iot->dispatch_time - iot->queue_time; |
1110 | ||
1111 | if (per_process_stats) { | |
2990e589 | 1112 | struct per_process_info *ppi = find_ppi(iot->ppm->pid); |
b9d40d6f | 1113 | int w = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; |
50adc0ba | 1114 | |
b9d40d6f JA |
1115 | if (ppi && elapsed > ppi->longest_dispatch_wait[w]) |
1116 | ppi->longest_dispatch_wait[w] = elapsed; | |
50adc0ba JA |
1117 | } |
1118 | ||
1119 | return elapsed; | |
2e3e8ded JA |
1120 | } |
1121 | ||
1122 | /* | |
1123 | * return time between dispatch and complete | |
1124 | */ | |
f7bd1a9b JA |
1125 | static unsigned long long log_track_complete(struct per_dev_info *pdi, |
1126 | struct blk_io_trace *t) | |
2e3e8ded JA |
1127 | { |
1128 | unsigned long long elapsed; | |
1129 | struct io_track *iot; | |
1130 | ||
1131 | if (!track_ios) | |
1132 | return -1; | |
2e3e8ded | 1133 | |
f7bd1a9b | 1134 | iot = __find_track(pdi, t->sector); |
cb2a1a62 | 1135 | if (!iot) { |
57ea8602 JA |
1136 | if (verbose) |
1137 | fprintf(stderr,"complete not found for (%d,%d): %llu\n", | |
1138 | MAJOR(pdi->dev), MINOR(pdi->dev), | |
1139 | (unsigned long long) t->sector); | |
2e3e8ded | 1140 | return -1; |
cb2a1a62 | 1141 | } |
2e3e8ded JA |
1142 | |
1143 | iot->completion_time = t->time; | |
1144 | elapsed = iot->completion_time - iot->dispatch_time; | |
1145 | ||
50adc0ba | 1146 | if (per_process_stats) { |
2990e589 | 1147 | struct per_process_info *ppi = find_ppi(iot->ppm->pid); |
b9d40d6f | 1148 | int w = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; |
50adc0ba | 1149 | |
b9d40d6f JA |
1150 | if (ppi && elapsed > ppi->longest_completion_wait[w]) |
1151 | ppi->longest_completion_wait[w] = elapsed; | |
50adc0ba JA |
1152 | } |
1153 | ||
2e3e8ded JA |
1154 | /* |
1155 | * kill the trace, we don't need it after completion | |
1156 | */ | |
f7bd1a9b | 1157 | rb_erase(&iot->rb_node, &pdi->rb_track); |
2e3e8ded JA |
1158 | free(iot); |
1159 | ||
1160 | return elapsed; | |
1161 | } | |
1162 | ||
1163 | ||
9e4cd1b8 | 1164 | static struct io_stats *find_process_io_stats(pid_t pid) |
152f6476 | 1165 | { |
bfc70ad5 | 1166 | struct per_process_info *ppi = find_ppi(pid); |
152f6476 JA |
1167 | |
1168 | if (!ppi) { | |
1169 | ppi = malloc(sizeof(*ppi)); | |
1170 | memset(ppi, 0, sizeof(*ppi)); | |
2990e589 | 1171 | ppi->ppm = find_ppm(pid); |
ebe2d1aa JA |
1172 | if (!ppi->ppm) |
1173 | ppi->ppm = add_ppm_hash(pid, "unknown"); | |
bfc70ad5 JA |
1174 | add_ppi_to_hash(ppi); |
1175 | add_ppi_to_list(ppi); | |
152f6476 JA |
1176 | } |
1177 | ||
1178 | return &ppi->io_stats; | |
1179 | } | |
1180 | ||
e7c9f3ff NS |
1181 | static char *get_dev_name(struct per_dev_info *pdi, char *buffer, int size) |
1182 | { | |
1183 | if (pdi->name) | |
1184 | snprintf(buffer, size, "%s", pdi->name); | |
1185 | else | |
f7bd1a9b | 1186 | snprintf(buffer, size, "%d,%d",MAJOR(pdi->dev),MINOR(pdi->dev)); |
e7c9f3ff NS |
1187 | return buffer; |
1188 | } | |
1189 | ||
e7c9f3ff | 1190 | static void check_time(struct per_dev_info *pdi, struct blk_io_trace *bit) |
cfab07eb AB |
1191 | { |
1192 | unsigned long long this = bit->time; | |
e7c9f3ff | 1193 | unsigned long long last = pdi->last_reported_time; |
cfab07eb | 1194 | |
e7c9f3ff NS |
1195 | pdi->backwards = (this < last) ? 'B' : ' '; |
1196 | pdi->last_reported_time = this; | |
cfab07eb AB |
1197 | } |
1198 | ||
fb2ec796 JA |
1199 | static inline void __account_m(struct io_stats *ios, struct blk_io_trace *t, |
1200 | int rw) | |
d0ca268b | 1201 | { |
fb2ec796 | 1202 | if (rw) { |
152f6476 | 1203 | ios->mwrites++; |
fb2ec796 | 1204 | ios->mwrite_kb += t_kb(t); |
cd0ae0f6 | 1205 | ios->mwrite_b += t_b(t); |
fb2ec796 | 1206 | } else { |
152f6476 | 1207 | ios->mreads++; |
fb2ec796 | 1208 | ios->mread_kb += t_kb(t); |
cd0ae0f6 | 1209 | ios->mread_b += t_b(t); |
fb2ec796 | 1210 | } |
152f6476 JA |
1211 | } |
1212 | ||
1213 | static inline void account_m(struct blk_io_trace *t, struct per_cpu_info *pci, | |
1214 | int rw) | |
1215 | { | |
fb2ec796 | 1216 | __account_m(&pci->io_stats, t, rw); |
152f6476 JA |
1217 | |
1218 | if (per_process_stats) { | |
bfc70ad5 | 1219 | struct io_stats *ios = find_process_io_stats(t->pid); |
152f6476 | 1220 | |
fb2ec796 | 1221 | __account_m(ios, t, rw); |
d0ca268b JA |
1222 | } |
1223 | } | |
1224 | ||
801646d6 CS |
1225 | static inline void __account_pc_queue(struct io_stats *ios, |
1226 | struct blk_io_trace *t, int rw) | |
1227 | { | |
1228 | if (rw) { | |
1229 | ios->qwrites_pc++; | |
1230 | ios->qwrite_kb_pc += t_kb(t); | |
cd0ae0f6 | 1231 | ios->qwrite_b_pc += t_b(t); |
801646d6 CS |
1232 | } else { |
1233 | ios->qreads_pc++; | |
1234 | ios->qread_kb += t_kb(t); | |
cd0ae0f6 | 1235 | ios->qread_b_pc += t_b(t); |
801646d6 CS |
1236 | } |
1237 | } | |
1238 | ||
1239 | static inline void account_pc_queue(struct blk_io_trace *t, | |
1240 | struct per_cpu_info *pci, int rw) | |
1241 | { | |
1242 | __account_pc_queue(&pci->io_stats, t, rw); | |
1243 | ||
1244 | if (per_process_stats) { | |
1245 | struct io_stats *ios = find_process_io_stats(t->pid); | |
1246 | ||
1247 | __account_pc_queue(ios, t, rw); | |
1248 | } | |
1249 | } | |
1250 | ||
1251 | static inline void __account_pc_issue(struct io_stats *ios, int rw, | |
1252 | unsigned int bytes) | |
1253 | { | |
1254 | if (rw) { | |
1255 | ios->iwrites_pc++; | |
1256 | ios->iwrite_kb_pc += bytes >> 10; | |
cd0ae0f6 | 1257 | ios->iwrite_b_pc += bytes & 1023; |
801646d6 CS |
1258 | } else { |
1259 | ios->ireads_pc++; | |
1260 | ios->iread_kb_pc += bytes >> 10; | |
cd0ae0f6 | 1261 | ios->iread_b_pc += bytes & 1023; |
801646d6 CS |
1262 | } |
1263 | } | |
1264 | ||
1265 | static inline void account_pc_issue(struct blk_io_trace *t, | |
1266 | struct per_cpu_info *pci, int rw) | |
1267 | { | |
1268 | __account_pc_issue(&pci->io_stats, rw, t->bytes); | |
1269 | ||
1270 | if (per_process_stats) { | |
1271 | struct io_stats *ios = find_process_io_stats(t->pid); | |
1272 | ||
1273 | __account_pc_issue(ios, rw, t->bytes); | |
1274 | } | |
1275 | } | |
1276 | ||
1277 | static inline void __account_pc_requeue(struct io_stats *ios, | |
1278 | struct blk_io_trace *t, int rw) | |
1279 | { | |
1280 | if (rw) { | |
1281 | ios->wrqueue_pc++; | |
1282 | ios->iwrite_kb_pc -= t_kb(t); | |
cd0ae0f6 | 1283 | ios->iwrite_b_pc -= t_b(t); |
801646d6 CS |
1284 | } else { |
1285 | ios->rrqueue_pc++; | |
1286 | ios->iread_kb_pc -= t_kb(t); | |
cd0ae0f6 | 1287 | ios->iread_b_pc -= t_b(t); |
801646d6 CS |
1288 | } |
1289 | } | |
1290 | ||
1291 | static inline void account_pc_requeue(struct blk_io_trace *t, | |
1292 | struct per_cpu_info *pci, int rw) | |
1293 | { | |
1294 | __account_pc_requeue(&pci->io_stats, t, rw); | |
1295 | ||
1296 | if (per_process_stats) { | |
1297 | struct io_stats *ios = find_process_io_stats(t->pid); | |
1298 | ||
1299 | __account_pc_requeue(ios, t, rw); | |
1300 | } | |
1301 | } | |
1302 | ||
1303 | static inline void __account_pc_c(struct io_stats *ios, int rw) | |
1304 | { | |
1305 | if (rw) | |
1306 | ios->cwrites_pc++; | |
1307 | else | |
1308 | ios->creads_pc++; | |
1309 | } | |
1310 | ||
1311 | static inline void account_pc_c(struct blk_io_trace *t, | |
1312 | struct per_cpu_info *pci, int rw) | |
1313 | { | |
1314 | __account_pc_c(&pci->io_stats, rw); | |
1315 | ||
1316 | if (per_process_stats) { | |
1317 | struct io_stats *ios = find_process_io_stats(t->pid); | |
1318 | ||
1319 | __account_pc_c(ios, rw); | |
1320 | } | |
1321 | } | |
1322 | ||
b6076a9b JA |
1323 | static inline void __account_queue(struct io_stats *ios, struct blk_io_trace *t, |
1324 | int rw) | |
d0ca268b JA |
1325 | { |
1326 | if (rw) { | |
152f6476 | 1327 | ios->qwrites++; |
ae957cbc | 1328 | ios->qwrite_kb += t_kb(t); |
cd0ae0f6 | 1329 | ios->qwrite_b += t_b(t); |
d0ca268b | 1330 | } else { |
152f6476 | 1331 | ios->qreads++; |
ae957cbc | 1332 | ios->qread_kb += t_kb(t); |
cd0ae0f6 | 1333 | ios->qread_b += t_b(t); |
152f6476 JA |
1334 | } |
1335 | } | |
1336 | ||
b6076a9b JA |
1337 | static inline void account_queue(struct blk_io_trace *t, |
1338 | struct per_cpu_info *pci, int rw) | |
152f6476 | 1339 | { |
b6076a9b | 1340 | __account_queue(&pci->io_stats, t, rw); |
152f6476 JA |
1341 | |
1342 | if (per_process_stats) { | |
bfc70ad5 | 1343 | struct io_stats *ios = find_process_io_stats(t->pid); |
152f6476 | 1344 | |
b6076a9b | 1345 | __account_queue(ios, t, rw); |
d0ca268b JA |
1346 | } |
1347 | } | |
1348 | ||
e21dc4dd | 1349 | static inline void __account_c(struct io_stats *ios, int rw, int bytes) |
d0ca268b JA |
1350 | { |
1351 | if (rw) { | |
152f6476 JA |
1352 | ios->cwrites++; |
1353 | ios->cwrite_kb += bytes >> 10; | |
cd0ae0f6 | 1354 | ios->cwrite_b += bytes & 1023; |
d0ca268b | 1355 | } else { |
152f6476 JA |
1356 | ios->creads++; |
1357 | ios->cread_kb += bytes >> 10; | |
cd0ae0f6 | 1358 | ios->cread_b += bytes & 1023; |
152f6476 JA |
1359 | } |
1360 | } | |
1361 | ||
1362 | static inline void account_c(struct blk_io_trace *t, struct per_cpu_info *pci, | |
1363 | int rw, int bytes) | |
1364 | { | |
1365 | __account_c(&pci->io_stats, rw, bytes); | |
1366 | ||
1367 | if (per_process_stats) { | |
bfc70ad5 | 1368 | struct io_stats *ios = find_process_io_stats(t->pid); |
152f6476 JA |
1369 | |
1370 | __account_c(ios, rw, bytes); | |
d0ca268b JA |
1371 | } |
1372 | } | |
1373 | ||
b6076a9b JA |
1374 | static inline void __account_issue(struct io_stats *ios, int rw, |
1375 | unsigned int bytes) | |
afd2d7ad | 1376 | { |
1377 | if (rw) { | |
152f6476 JA |
1378 | ios->iwrites++; |
1379 | ios->iwrite_kb += bytes >> 10; | |
cd0ae0f6 | 1380 | ios->iwrite_b += bytes & 1023; |
afd2d7ad | 1381 | } else { |
152f6476 JA |
1382 | ios->ireads++; |
1383 | ios->iread_kb += bytes >> 10; | |
cd0ae0f6 | 1384 | ios->iread_b += bytes & 1023; |
afd2d7ad | 1385 | } |
1386 | } | |
1387 | ||
b6076a9b JA |
1388 | static inline void account_issue(struct blk_io_trace *t, |
1389 | struct per_cpu_info *pci, int rw) | |
d0ca268b | 1390 | { |
b6076a9b | 1391 | __account_issue(&pci->io_stats, rw, t->bytes); |
152f6476 JA |
1392 | |
1393 | if (per_process_stats) { | |
bfc70ad5 | 1394 | struct io_stats *ios = find_process_io_stats(t->pid); |
d5396421 | 1395 | |
b6076a9b | 1396 | __account_issue(ios, rw, t->bytes); |
152f6476 JA |
1397 | } |
1398 | } | |
1399 | ||
06639b27 JA |
1400 | static inline void __account_unplug(struct io_stats *ios, int timer) |
1401 | { | |
1402 | if (timer) | |
1403 | ios->timer_unplugs++; | |
1404 | else | |
1405 | ios->io_unplugs++; | |
1406 | } | |
1407 | ||
1408 | static inline void account_unplug(struct blk_io_trace *t, | |
1409 | struct per_cpu_info *pci, int timer) | |
1410 | { | |
1411 | __account_unplug(&pci->io_stats, timer); | |
1412 | ||
1413 | if (per_process_stats) { | |
bfc70ad5 | 1414 | struct io_stats *ios = find_process_io_stats(t->pid); |
06639b27 JA |
1415 | |
1416 | __account_unplug(ios, timer); | |
1417 | } | |
1418 | } | |
1419 | ||
4054070a JA |
1420 | static inline void __account_requeue(struct io_stats *ios, |
1421 | struct blk_io_trace *t, int rw) | |
1422 | { | |
1423 | if (rw) { | |
1424 | ios->wrqueue++; | |
1425 | ios->iwrite_kb -= t_kb(t); | |
cd0ae0f6 | 1426 | ios->iwrite_b -= t_b(t); |
4054070a JA |
1427 | } else { |
1428 | ios->rrqueue++; | |
1429 | ios->iread_kb -= t_kb(t); | |
cd0ae0f6 | 1430 | ios->iread_b -= t_b(t); |
4054070a JA |
1431 | } |
1432 | } | |
1433 | ||
1434 | static inline void account_requeue(struct blk_io_trace *t, | |
1435 | struct per_cpu_info *pci, int rw) | |
1436 | { | |
1437 | __account_requeue(&pci->io_stats, t, rw); | |
1438 | ||
1439 | if (per_process_stats) { | |
bfc70ad5 | 1440 | struct io_stats *ios = find_process_io_stats(t->pid); |
4054070a JA |
1441 | |
1442 | __account_requeue(ios, t, rw); | |
1443 | } | |
1444 | } | |
1445 | ||
f7bd1a9b JA |
1446 | static void log_complete(struct per_dev_info *pdi, struct per_cpu_info *pci, |
1447 | struct blk_io_trace *t, char *act) | |
ab197ca7 | 1448 | { |
f7bd1a9b | 1449 | process_fmt(act, pci, t, log_track_complete(pdi, t), 0, NULL); |
ab197ca7 AB |
1450 | } |
1451 | ||
f7bd1a9b JA |
1452 | static void log_insert(struct per_dev_info *pdi, struct per_cpu_info *pci, |
1453 | struct blk_io_trace *t, char *act) | |
b6076a9b | 1454 | { |
f7bd1a9b | 1455 | process_fmt(act, pci, t, log_track_insert(pdi, t), 0, NULL); |
b6076a9b JA |
1456 | } |
1457 | ||
ab197ca7 AB |
1458 | static void log_queue(struct per_cpu_info *pci, struct blk_io_trace *t, |
1459 | char *act) | |
1460 | { | |
b6076a9b | 1461 | process_fmt(act, pci, t, -1, 0, NULL); |
ab197ca7 | 1462 | } |
2e3e8ded | 1463 | |
f7bd1a9b JA |
1464 | static void log_issue(struct per_dev_info *pdi, struct per_cpu_info *pci, |
1465 | struct blk_io_trace *t, char *act) | |
ab197ca7 | 1466 | { |
f7bd1a9b | 1467 | process_fmt(act, pci, t, log_track_issue(pdi, t), 0, NULL); |
d0ca268b JA |
1468 | } |
1469 | ||
f7bd1a9b JA |
1470 | static void log_merge(struct per_dev_info *pdi, struct per_cpu_info *pci, |
1471 | struct blk_io_trace *t, char *act) | |
d0ca268b | 1472 | { |
a01516de | 1473 | if (act[0] == 'F') |
f7bd1a9b | 1474 | log_track_frontmerge(pdi, t); |
2e3e8ded | 1475 | |
ab197ca7 | 1476 | process_fmt(act, pci, t, -1ULL, 0, NULL); |
d0ca268b JA |
1477 | } |
1478 | ||
dfe34da1 | 1479 | static void log_action(struct per_cpu_info *pci, struct blk_io_trace *t, |
3639a11e | 1480 | char *act) |
dfe34da1 | 1481 | { |
ab197ca7 | 1482 | process_fmt(act, pci, t, -1ULL, 0, NULL); |
dfe34da1 JA |
1483 | } |
1484 | ||
d5396421 | 1485 | static void log_generic(struct per_cpu_info *pci, struct blk_io_trace *t, |
3639a11e | 1486 | char *act) |
d0ca268b | 1487 | { |
ab197ca7 | 1488 | process_fmt(act, pci, t, -1ULL, 0, NULL); |
d0ca268b JA |
1489 | } |
1490 | ||
ab197ca7 | 1491 | static void log_unplug(struct per_cpu_info *pci, struct blk_io_trace *t, |
3639a11e | 1492 | char *act) |
67e14fdc | 1493 | { |
ab197ca7 | 1494 | process_fmt(act, pci, t, -1ULL, 0, NULL); |
67e14fdc JA |
1495 | } |
1496 | ||
93f1c611 JA |
1497 | static void log_split(struct per_cpu_info *pci, struct blk_io_trace *t, |
1498 | char *act) | |
1499 | { | |
1500 | process_fmt(act, pci, t, -1ULL, 0, NULL); | |
1501 | } | |
1502 | ||
ab197ca7 | 1503 | static void log_pc(struct per_cpu_info *pci, struct blk_io_trace *t, char *act) |
d0ca268b | 1504 | { |
ab197ca7 | 1505 | unsigned char *buf = (unsigned char *) t + sizeof(*t); |
d0ca268b | 1506 | |
ab197ca7 | 1507 | process_fmt(act, pci, t, -1ULL, t->pdu_len, buf); |
d0ca268b JA |
1508 | } |
1509 | ||
c82a8c9d CS |
1510 | static void dump_trace_pc(struct blk_io_trace *t, struct per_dev_info *pdi, |
1511 | struct per_cpu_info *pci) | |
d0ca268b | 1512 | { |
c82a8c9d | 1513 | int w = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; |
56f2af81 JA |
1514 | int act = t->action & 0xffff; |
1515 | ||
1516 | switch (act) { | |
d0ca268b | 1517 | case __BLK_TA_QUEUE: |
3639a11e | 1518 | log_generic(pci, t, "Q"); |
801646d6 | 1519 | account_pc_queue(t, pci, w); |
d0ca268b JA |
1520 | break; |
1521 | case __BLK_TA_GETRQ: | |
3639a11e | 1522 | log_generic(pci, t, "G"); |
d0ca268b JA |
1523 | break; |
1524 | case __BLK_TA_SLEEPRQ: | |
3639a11e | 1525 | log_generic(pci, t, "S"); |
d0ca268b JA |
1526 | break; |
1527 | case __BLK_TA_REQUEUE: | |
c82a8c9d CS |
1528 | /* |
1529 | * can happen if we miss traces, don't let it go | |
1530 | * below zero | |
1531 | */ | |
1532 | if (pdi->cur_depth[w]) | |
1533 | pdi->cur_depth[w]--; | |
801646d6 | 1534 | account_pc_requeue(t, pci, w); |
3639a11e | 1535 | log_generic(pci, t, "R"); |
d0ca268b JA |
1536 | break; |
1537 | case __BLK_TA_ISSUE: | |
801646d6 | 1538 | account_pc_issue(t, pci, w); |
c82a8c9d CS |
1539 | pdi->cur_depth[w]++; |
1540 | if (pdi->cur_depth[w] > pdi->max_depth[w]) | |
1541 | pdi->max_depth[w] = pdi->cur_depth[w]; | |
ab197ca7 | 1542 | log_pc(pci, t, "D"); |
d0ca268b JA |
1543 | break; |
1544 | case __BLK_TA_COMPLETE: | |
c82a8c9d CS |
1545 | if (pdi->cur_depth[w]) |
1546 | pdi->cur_depth[w]--; | |
3639a11e | 1547 | log_pc(pci, t, "C"); |
801646d6 | 1548 | account_pc_c(t, pci, w); |
d0ca268b | 1549 | break; |
56f2af81 JA |
1550 | case __BLK_TA_INSERT: |
1551 | log_pc(pci, t, "I"); | |
1552 | break; | |
d0ca268b | 1553 | default: |
56f2af81 | 1554 | fprintf(stderr, "Bad pc action %x\n", act); |
87b72777 | 1555 | break; |
d0ca268b | 1556 | } |
d0ca268b JA |
1557 | } |
1558 | ||
f7bd1a9b JA |
1559 | static void dump_trace_fs(struct blk_io_trace *t, struct per_dev_info *pdi, |
1560 | struct per_cpu_info *pci) | |
d0ca268b | 1561 | { |
649c7b66 | 1562 | int w = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; |
7997c5b0 | 1563 | int act = t->action & 0xffff; |
d0ca268b | 1564 | |
7997c5b0 | 1565 | switch (act) { |
d0ca268b | 1566 | case __BLK_TA_QUEUE: |
753f9091 | 1567 | log_track_queue(pdi, t); |
b6076a9b | 1568 | account_queue(t, pci, w); |
3639a11e | 1569 | log_queue(pci, t, "Q"); |
d0ca268b | 1570 | break; |
b6076a9b | 1571 | case __BLK_TA_INSERT: |
f7bd1a9b | 1572 | log_insert(pdi, pci, t, "I"); |
b6076a9b | 1573 | break; |
d0ca268b | 1574 | case __BLK_TA_BACKMERGE: |
152f6476 | 1575 | account_m(t, pci, w); |
f7bd1a9b | 1576 | log_merge(pdi, pci, t, "M"); |
d0ca268b JA |
1577 | break; |
1578 | case __BLK_TA_FRONTMERGE: | |
152f6476 | 1579 | account_m(t, pci, w); |
f7bd1a9b | 1580 | log_merge(pdi, pci, t, "F"); |
d0ca268b JA |
1581 | break; |
1582 | case __BLK_TA_GETRQ: | |
f7bd1a9b | 1583 | log_track_getrq(pdi, t); |
3639a11e | 1584 | log_generic(pci, t, "G"); |
d0ca268b JA |
1585 | break; |
1586 | case __BLK_TA_SLEEPRQ: | |
3639a11e | 1587 | log_generic(pci, t, "S"); |
d0ca268b JA |
1588 | break; |
1589 | case __BLK_TA_REQUEUE: | |
65f2deb5 JA |
1590 | /* |
1591 | * can happen if we miss traces, don't let it go | |
1592 | * below zero | |
1593 | */ | |
1594 | if (pdi->cur_depth[w]) | |
1595 | pdi->cur_depth[w]--; | |
4054070a | 1596 | account_requeue(t, pci, w); |
3639a11e | 1597 | log_queue(pci, t, "R"); |
d0ca268b JA |
1598 | break; |
1599 | case __BLK_TA_ISSUE: | |
b6076a9b | 1600 | account_issue(t, pci, w); |
649c7b66 JA |
1601 | pdi->cur_depth[w]++; |
1602 | if (pdi->cur_depth[w] > pdi->max_depth[w]) | |
1603 | pdi->max_depth[w] = pdi->cur_depth[w]; | |
f7bd1a9b | 1604 | log_issue(pdi, pci, t, "D"); |
d0ca268b JA |
1605 | break; |
1606 | case __BLK_TA_COMPLETE: | |
65f2deb5 JA |
1607 | if (pdi->cur_depth[w]) |
1608 | pdi->cur_depth[w]--; | |
152f6476 | 1609 | account_c(t, pci, w, t->bytes); |
f7bd1a9b | 1610 | log_complete(pdi, pci, t, "C"); |
d0ca268b | 1611 | break; |
88b1a526 | 1612 | case __BLK_TA_PLUG: |
3639a11e | 1613 | log_action(pci, t, "P"); |
88b1a526 | 1614 | break; |
3639a11e | 1615 | case __BLK_TA_UNPLUG_IO: |
06639b27 | 1616 | account_unplug(t, pci, 0); |
3639a11e JA |
1617 | log_unplug(pci, t, "U"); |
1618 | break; | |
1619 | case __BLK_TA_UNPLUG_TIMER: | |
06639b27 | 1620 | account_unplug(t, pci, 1); |
3639a11e | 1621 | log_unplug(pci, t, "UT"); |
88b1a526 | 1622 | break; |
93f1c611 JA |
1623 | case __BLK_TA_SPLIT: |
1624 | log_split(pci, t, "X"); | |
1625 | break; | |
1626 | case __BLK_TA_BOUNCE: | |
1627 | log_generic(pci, t, "B"); | |
1628 | break; | |
a8f30e64 JA |
1629 | case __BLK_TA_REMAP: |
1630 | log_generic(pci, t, "A"); | |
1631 | break; | |
c54b9dd9 | 1632 | case __BLK_TA_DRV_DATA: |
c701176c | 1633 | have_drv_data = 1; |
c54b9dd9 SR |
1634 | /* dump to binary file only */ |
1635 | break; | |
d0ca268b JA |
1636 | default: |
1637 | fprintf(stderr, "Bad fs action %x\n", t->action); | |
1f79c4a0 | 1638 | break; |
d0ca268b | 1639 | } |
d0ca268b JA |
1640 | } |
1641 | ||
ff3a732c JA |
1642 | static void dump_trace(struct blk_io_trace *t, struct per_cpu_info *pci, |
1643 | struct per_dev_info *pdi) | |
d0ca268b | 1644 | { |
234db09d | 1645 | if (text_output) { |
1a15f6a8 AB |
1646 | if (t->action == BLK_TN_MESSAGE) |
1647 | handle_notify(t); | |
1648 | else if (t->action & BLK_TC_ACT(BLK_TC_PC)) | |
c82a8c9d | 1649 | dump_trace_pc(t, pdi, pci); |
234db09d AB |
1650 | else |
1651 | dump_trace_fs(t, pdi, pci); | |
1652 | } | |
87b72777 | 1653 | |
20ed6177 JA |
1654 | if (!pdi->events) |
1655 | pdi->first_reported_time = t->time; | |
1656 | ||
e7c9f3ff | 1657 | pdi->events++; |
a2594911 | 1658 | |
19cfaf3f AB |
1659 | if (bin_output_msgs || |
1660 | !(t->action & BLK_TC_ACT(BLK_TC_NOTIFY) && | |
1661 | t->action == BLK_TN_MESSAGE)) | |
1662 | output_binary(t, sizeof(*t) + t->pdu_len); | |
d0ca268b JA |
1663 | } |
1664 | ||
4c523165 JA |
1665 | /* |
1666 | * print in a proper way, not too small and not too big. if more than | |
1667 | * 1000,000K, turn into M and so on | |
1668 | */ | |
1669 | static char *size_cnv(char *dst, unsigned long long num, int in_kb) | |
1670 | { | |
da19e768 | 1671 | char suff[] = { '\0', 'K', 'M', 'G', 'P' }; |
0dc3602c | 1672 | unsigned int i = 0; |
4c523165 JA |
1673 | |
1674 | if (in_kb) | |
1675 | i++; | |
1676 | ||
0dc3602c | 1677 | while (num > 1000 * 1000ULL && (i < sizeof(suff) - 1)) { |
4c523165 JA |
1678 | i++; |
1679 | num /= 1000; | |
1680 | } | |
1681 | ||
1682 | sprintf(dst, "%'8Lu%c", num, suff[i]); | |
1683 | return dst; | |
1684 | } | |
1685 | ||
649c7b66 JA |
1686 | static void dump_io_stats(struct per_dev_info *pdi, struct io_stats *ios, |
1687 | char *msg) | |
5c017e4b | 1688 | { |
4c523165 JA |
1689 | static char x[256], y[256]; |
1690 | ||
152f6476 JA |
1691 | fprintf(ofp, "%s\n", msg); |
1692 | ||
cd0ae0f6 ID |
1693 | fprintf(ofp, " Reads Queued: %s, %siB\t", |
1694 | size_cnv(x, ios->qreads, 0), | |
1695 | size_cnv(y, ios->qread_kb + (ios->qread_b>>10), 1)); | |
1696 | fprintf(ofp, " Writes Queued: %s, %siB\n", | |
1697 | size_cnv(x, ios->qwrites, 0), | |
1698 | size_cnv(y, ios->qwrite_kb + (ios->qwrite_b>>10), 1)); | |
1699 | fprintf(ofp, " Read Dispatches: %s, %siB\t", | |
1700 | size_cnv(x, ios->ireads, 0), | |
1701 | size_cnv(y, ios->iread_kb + (ios->iread_b>>10), 1)); | |
1702 | fprintf(ofp, " Write Dispatches: %s, %siB\n", | |
1703 | size_cnv(x, ios->iwrites, 0), | |
1704 | size_cnv(y, ios->iwrite_kb + (ios->iwrite_b>>10), 1)); | |
4054070a JA |
1705 | fprintf(ofp, " Reads Requeued: %s\t\t", size_cnv(x, ios->rrqueue, 0)); |
1706 | fprintf(ofp, " Writes Requeued: %s\n", size_cnv(x, ios->wrqueue, 0)); | |
cd0ae0f6 ID |
1707 | fprintf(ofp, " Reads Completed: %s, %siB\t", |
1708 | size_cnv(x, ios->creads, 0), | |
1709 | size_cnv(y, ios->cread_kb + (ios->cread_b>>10), 1)); | |
1710 | fprintf(ofp, " Writes Completed: %s, %siB\n", | |
1711 | size_cnv(x, ios->cwrites, 0), | |
1712 | size_cnv(y, ios->cwrite_kb + (ios->cwrite_b>>10), 1)); | |
1713 | fprintf(ofp, " Read Merges: %s, %siB\t", | |
1714 | size_cnv(x, ios->mreads, 0), | |
1715 | size_cnv(y, ios->mread_kb + (ios->mread_b>>10), 1)); | |
1716 | fprintf(ofp, " Write Merges: %s, %siB\n", | |
1717 | size_cnv(x, ios->mwrites, 0), | |
1718 | size_cnv(y, ios->mwrite_kb + (ios->mwrite_b>>10), 1)); | |
649c7b66 JA |
1719 | if (pdi) { |
1720 | fprintf(ofp, " Read depth: %'8u%8c\t", pdi->max_depth[0], ' '); | |
1721 | fprintf(ofp, " Write depth: %'8u\n", pdi->max_depth[1]); | |
1722 | } | |
801646d6 CS |
1723 | if (ios->qreads_pc || ios->qwrites_pc || ios->ireads_pc || ios->iwrites_pc || |
1724 | ios->rrqueue_pc || ios->wrqueue_pc || ios->creads_pc || ios->cwrites_pc) { | |
cd0ae0f6 ID |
1725 | fprintf(ofp, " PC Reads Queued: %s, %siB\t", |
1726 | size_cnv(x, ios->qreads_pc, 0), | |
1727 | size_cnv(y, | |
1728 | ios->qread_kb_pc + (ios->qread_b_pc>>10), 1)); | |
1729 | fprintf(ofp, " PC Writes Queued: %s, %siB\n", | |
1730 | size_cnv(x, ios->qwrites_pc, 0), | |
1731 | size_cnv(y, | |
1732 | ios->qwrite_kb_pc + (ios->qwrite_b_pc>>10), 1)); | |
1733 | fprintf(ofp, " PC Read Disp.: %s, %siB\t", | |
1734 | size_cnv(x, ios->ireads_pc, 0), | |
1735 | size_cnv(y, | |
1736 | ios->iread_kb_pc + (ios->iread_b_pc>>10), 1)); | |
1737 | fprintf(ofp, " PC Write Disp.: %s, %siB\n", | |
1738 | size_cnv(x, ios->iwrites_pc, 0), | |
1739 | size_cnv(y, | |
1740 | ios->iwrite_kb_pc + (ios->iwrite_b_pc>>10), | |
1741 | 1)); | |
801646d6 CS |
1742 | fprintf(ofp, " PC Reads Req.: %s\t\t", size_cnv(x, ios->rrqueue_pc, 0)); |
1743 | fprintf(ofp, " PC Writes Req.: %s\n", size_cnv(x, ios->wrqueue_pc, 0)); | |
1744 | fprintf(ofp, " PC Reads Compl.: %s\t\t", size_cnv(x, ios->creads_pc, 0)); | |
d0576a3a | 1745 | fprintf(ofp, " PC Writes Compl.: %s\n", size_cnv(x, ios->cwrites_pc, 0)); |
801646d6 | 1746 | } |
06639b27 JA |
1747 | fprintf(ofp, " IO unplugs: %'8lu%8c\t", ios->io_unplugs, ' '); |
1748 | fprintf(ofp, " Timer unplugs: %'8lu\n", ios->timer_unplugs); | |
5c017e4b JA |
1749 | } |
1750 | ||
50adc0ba JA |
1751 | static void dump_wait_stats(struct per_process_info *ppi) |
1752 | { | |
b9d40d6f JA |
1753 | unsigned long rawait = ppi->longest_allocation_wait[0] / 1000; |
1754 | unsigned long rdwait = ppi->longest_dispatch_wait[0] / 1000; | |
1755 | unsigned long rcwait = ppi->longest_completion_wait[0] / 1000; | |
1756 | unsigned long wawait = ppi->longest_allocation_wait[1] / 1000; | |
1757 | unsigned long wdwait = ppi->longest_dispatch_wait[1] / 1000; | |
1758 | unsigned long wcwait = ppi->longest_completion_wait[1] / 1000; | |
1759 | ||
1760 | fprintf(ofp, " Allocation wait: %'8lu%8c\t", rawait, ' '); | |
1761 | fprintf(ofp, " Allocation wait: %'8lu\n", wawait); | |
1762 | fprintf(ofp, " Dispatch wait: %'8lu%8c\t", rdwait, ' '); | |
1763 | fprintf(ofp, " Dispatch wait: %'8lu\n", wdwait); | |
1764 | fprintf(ofp, " Completion wait: %'8lu%8c\t", rcwait, ' '); | |
1765 | fprintf(ofp, " Completion wait: %'8lu\n", wcwait); | |
50adc0ba JA |
1766 | } |
1767 | ||
886ecf0e JA |
1768 | static int ppi_name_compare(const void *p1, const void *p2) |
1769 | { | |
1770 | struct per_process_info *ppi1 = *((struct per_process_info **) p1); | |
1771 | struct per_process_info *ppi2 = *((struct per_process_info **) p2); | |
1772 | int res; | |
1773 | ||
2990e589 | 1774 | res = strverscmp(ppi1->ppm->comm, ppi2->ppm->comm); |
886ecf0e | 1775 | if (!res) |
2990e589 | 1776 | res = ppi1->ppm->pid > ppi2->ppm->pid; |
886ecf0e JA |
1777 | |
1778 | return res; | |
1779 | } | |
1780 | ||
a7263b8f WZ |
1781 | static int ppi_event_compare(const void *p1, const void *p2) |
1782 | { | |
1783 | struct per_process_info *ppi1 = *((struct per_process_info **) p1); | |
1784 | struct per_process_info *ppi2 = *((struct per_process_info **) p2); | |
1785 | struct io_stats *ios1 = &ppi1->io_stats; | |
1786 | struct io_stats *ios2 = &ppi2->io_stats; | |
1787 | unsigned long io1, io2; | |
1788 | unsigned long long kb1,kb2; | |
1789 | int sort_by_kb = 1; | |
1790 | ||
1791 | io1 = io2 = 0; | |
1792 | kb1 = kb2 = 0; | |
1793 | ||
1794 | switch (per_process_stats_event) { | |
1795 | case SORT_PROG_EVENT_QKB: /* KB: Queued read and write */ | |
1796 | kb1 = ios1->qwrite_kb + (ios1->qwrite_b>>10) + | |
1797 | ios1->qread_kb + (ios1->qread_b>>10); | |
1798 | kb2 = ios2->qwrite_kb + (ios2->qwrite_b>>10) + | |
1799 | ios2->qread_kb + (ios2->qread_b>>10); | |
1800 | break; | |
1801 | case SORT_PROG_EVENT_RKB: /* KB: Queued Read */ | |
1802 | kb1 = ios1->qread_kb + (ios1->qread_b>>10); | |
1803 | kb2 = ios2->qread_kb + (ios2->qread_b>>10); | |
1804 | break; | |
1805 | case SORT_PROG_EVENT_WKB: /* KB: Queued Write */ | |
1806 | kb1 = ios1->qwrite_kb + (ios1->qwrite_b>>10); | |
1807 | kb2 = ios2->qwrite_kb + (ios2->qwrite_b>>10); | |
1808 | break; | |
1809 | case SORT_PROG_EVENT_CKB: /* KB: Complete */ | |
1810 | kb1 = ios1->cwrite_kb + (ios1->cwrite_b>>10) + | |
1811 | ios1->cread_kb + (ios1->cread_b>>10); | |
1812 | kb2 = ios2->cwrite_kb + (ios2->cwrite_b>>10) + | |
1813 | ios2->cread_kb + (ios2->cread_b>>10); | |
1814 | break; | |
1815 | case SORT_PROG_EVENT_QIO: /* IO: Queued read and write */ | |
1816 | sort_by_kb = 0; | |
1817 | io1 = ios1->qreads + ios1->qwrites; | |
1818 | io2 = ios2->qreads + ios2->qwrites; | |
1819 | break; | |
1820 | case SORT_PROG_EVENT_RIO: /* IO: Queued Read */ | |
1821 | sort_by_kb = 0; | |
1822 | io1 = ios1->qreads; | |
1823 | io2 = ios2->qreads; | |
1824 | break; | |
1825 | case SORT_PROG_EVENT_WIO: /* IO: Queued Write */ | |
1826 | sort_by_kb = 0; | |
1827 | io1 = ios1->qwrites; | |
1828 | io2 = ios2->qwrites; | |
1829 | break; | |
1830 | case SORT_PROG_EVENT_CIO: /* IO: Complete */ | |
1831 | sort_by_kb = 0; | |
1832 | io1 = ios1->creads + ios1->cwrites; | |
1833 | io2 = ios2->creads + ios2->cwrites; | |
1834 | break; | |
1835 | } | |
1836 | ||
1837 | ||
1838 | /* compare kb */ | |
1839 | if (sort_by_kb) { | |
1840 | if (kb1 > kb2) | |
1841 | return 1; | |
1842 | else if (kb1 == kb2) | |
1843 | return 0; | |
1844 | return -1; | |
1845 | } | |
1846 | ||
1847 | /* compare io */ | |
1848 | if (io1 > io2) | |
1849 | return 1; | |
1850 | else if (io1 == io2) | |
1851 | return 0; | |
1852 | return -1; | |
1853 | } | |
1854 | ||
1855 | static int ppi_compare(const void *p1, const void *p2) | |
1856 | { | |
1857 | if (per_process_stats_event == SORT_PROG_EVENT_N) | |
1858 | return ppi_name_compare(p1, p2); | |
1859 | ||
1860 | return ppi_event_compare(p1, p2); | |
1861 | } | |
1862 | ||
886ecf0e JA |
1863 | static void sort_process_list(void) |
1864 | { | |
1865 | struct per_process_info **ppis; | |
1866 | struct per_process_info *ppi; | |
1867 | int i = 0; | |
1868 | ||
1869 | ppis = malloc(ppi_list_entries * sizeof(struct per_process_info *)); | |
1870 | ||
1871 | ppi = ppi_list; | |
1872 | while (ppi) { | |
06e6f286 | 1873 | ppis[i++] = ppi; |
886ecf0e JA |
1874 | ppi = ppi->list_next; |
1875 | } | |
1876 | ||
a7263b8f | 1877 | qsort(ppis, ppi_list_entries, sizeof(ppi), ppi_compare); |
886ecf0e JA |
1878 | |
1879 | i = ppi_list_entries - 1; | |
1880 | ppi_list = NULL; | |
1881 | while (i >= 0) { | |
1882 | ppi = ppis[i]; | |
1883 | ||
1884 | ppi->list_next = ppi_list; | |
1885 | ppi_list = ppi; | |
1886 | i--; | |
1887 | } | |
50c38702 JA |
1888 | |
1889 | free(ppis); | |
886ecf0e JA |
1890 | } |
1891 | ||
152f6476 JA |
1892 | static void show_process_stats(void) |
1893 | { | |
1894 | struct per_process_info *ppi; | |
1895 | ||
886ecf0e JA |
1896 | sort_process_list(); |
1897 | ||
152f6476 JA |
1898 | ppi = ppi_list; |
1899 | while (ppi) { | |
2990e589 | 1900 | struct process_pid_map *ppm = ppi->ppm; |
ce8b6b4f JA |
1901 | char name[64]; |
1902 | ||
715d8021 | 1903 | if (ppi->more_than_one) |
2990e589 | 1904 | sprintf(name, "%s (%u, ...)", ppm->comm, ppm->pid); |
715d8021 | 1905 | else |
2990e589 | 1906 | sprintf(name, "%s (%u)", ppm->comm, ppm->pid); |
bf0720af | 1907 | |
649c7b66 | 1908 | dump_io_stats(NULL, &ppi->io_stats, name); |
50adc0ba | 1909 | dump_wait_stats(ppi); |
152f6476 JA |
1910 | ppi = ppi->list_next; |
1911 | } | |
1912 | ||
1913 | fprintf(ofp, "\n"); | |
1914 | } | |
1915 | ||
e7c9f3ff | 1916 | static void show_device_and_cpu_stats(void) |
d0ca268b | 1917 | { |
e7c9f3ff NS |
1918 | struct per_dev_info *pdi; |
1919 | struct per_cpu_info *pci; | |
1920 | struct io_stats total, *ios; | |
20ed6177 | 1921 | unsigned long long rrate, wrate, msec; |
e7c9f3ff NS |
1922 | int i, j, pci_events; |
1923 | char line[3 + 8/*cpu*/ + 2 + 32/*dev*/ + 3]; | |
1924 | char name[32]; | |
8a82e321 | 1925 | double ratio; |
e7c9f3ff NS |
1926 | |
1927 | for (pdi = devices, i = 0; i < ndevices; i++, pdi++) { | |
1928 | ||
1929 | memset(&total, 0, sizeof(total)); | |
1930 | pci_events = 0; | |
1931 | ||
1932 | if (i > 0) | |
1933 | fprintf(ofp, "\n"); | |
1934 | ||
1935 | for (pci = pdi->cpus, j = 0; j < pdi->ncpus; j++, pci++) { | |
1936 | if (!pci->nelems) | |
1937 | continue; | |
1938 | ||
1939 | ios = &pci->io_stats; | |
1940 | total.qreads += ios->qreads; | |
1941 | total.qwrites += ios->qwrites; | |
1942 | total.creads += ios->creads; | |
1943 | total.cwrites += ios->cwrites; | |
1944 | total.mreads += ios->mreads; | |
1945 | total.mwrites += ios->mwrites; | |
1946 | total.ireads += ios->ireads; | |
1947 | total.iwrites += ios->iwrites; | |
4054070a JA |
1948 | total.rrqueue += ios->rrqueue; |
1949 | total.wrqueue += ios->wrqueue; | |
e7c9f3ff NS |
1950 | total.qread_kb += ios->qread_kb; |
1951 | total.qwrite_kb += ios->qwrite_kb; | |
1952 | total.cread_kb += ios->cread_kb; | |
1953 | total.cwrite_kb += ios->cwrite_kb; | |
1954 | total.iread_kb += ios->iread_kb; | |
1955 | total.iwrite_kb += ios->iwrite_kb; | |
fb2ec796 JA |
1956 | total.mread_kb += ios->mread_kb; |
1957 | total.mwrite_kb += ios->mwrite_kb; | |
cd0ae0f6 ID |
1958 | total.qread_b += ios->qread_b; |
1959 | total.qwrite_b += ios->qwrite_b; | |
1960 | total.cread_b += ios->cread_b; | |
1961 | total.cwrite_b += ios->cwrite_b; | |
1962 | total.iread_b += ios->iread_b; | |
1963 | total.iwrite_b += ios->iwrite_b; | |
1964 | total.mread_b += ios->mread_b; | |
1965 | total.mwrite_b += ios->mwrite_b; | |
801646d6 CS |
1966 | |
1967 | total.qreads_pc += ios->qreads_pc; | |
1968 | total.qwrites_pc += ios->qwrites_pc; | |
1969 | total.creads_pc += ios->creads_pc; | |
1970 | total.cwrites_pc += ios->cwrites_pc; | |
1971 | total.ireads_pc += ios->ireads_pc; | |
1972 | total.iwrites_pc += ios->iwrites_pc; | |
1973 | total.rrqueue_pc += ios->rrqueue_pc; | |
1974 | total.wrqueue_pc += ios->wrqueue_pc; | |
1975 | total.qread_kb_pc += ios->qread_kb_pc; | |
1976 | total.qwrite_kb_pc += ios->qwrite_kb_pc; | |
1977 | total.iread_kb_pc += ios->iread_kb_pc; | |
1978 | total.iwrite_kb_pc += ios->iwrite_kb_pc; | |
cd0ae0f6 ID |
1979 | total.qread_b_pc += ios->qread_b_pc; |
1980 | total.qwrite_b_pc += ios->qwrite_b_pc; | |
1981 | total.iread_b_pc += ios->iread_b_pc; | |
1982 | total.iwrite_b_pc += ios->iwrite_b_pc; | |
801646d6 | 1983 | |
06639b27 JA |
1984 | total.timer_unplugs += ios->timer_unplugs; |
1985 | total.io_unplugs += ios->io_unplugs; | |
e7c9f3ff NS |
1986 | |
1987 | snprintf(line, sizeof(line) - 1, "CPU%d (%s):", | |
1988 | j, get_dev_name(pdi, name, sizeof(name))); | |
649c7b66 | 1989 | dump_io_stats(pdi, ios, line); |
e7c9f3ff NS |
1990 | pci_events++; |
1991 | } | |
5c017e4b | 1992 | |
e7c9f3ff NS |
1993 | if (pci_events > 1) { |
1994 | fprintf(ofp, "\n"); | |
1995 | snprintf(line, sizeof(line) - 1, "Total (%s):", | |
1996 | get_dev_name(pdi, name, sizeof(name))); | |
649c7b66 | 1997 | dump_io_stats(NULL, &total, line); |
e7c9f3ff | 1998 | } |
d0ca268b | 1999 | |
20ed6177 | 2000 | wrate = rrate = 0; |
20ed6177 JA |
2001 | msec = (pdi->last_reported_time - pdi->first_reported_time) / 1000000; |
2002 | if (msec) { | |
cd0ae0f6 ID |
2003 | rrate = ((1000 * total.cread_kb) + total.cread_b) / |
2004 | msec; | |
2005 | wrate = ((1000 * total.cwrite_kb) + total.cwrite_b) / | |
2006 | msec; | |
20ed6177 JA |
2007 | } |
2008 | ||
dce0f678 AB |
2009 | fprintf(ofp, "\nThroughput (R/W): %'LuKiB/s / %'LuKiB/s\n", |
2010 | rrate, wrate); | |
2011 | fprintf(ofp, "Events (%s): %'Lu entries\n", | |
2012 | get_dev_name(pdi, line, sizeof(line)), pdi->events); | |
492da111 AB |
2013 | |
2014 | collect_pdi_skips(pdi); | |
8a82e321 MZ |
2015 | if (!pdi->skips && !pdi->events) |
2016 | ratio = 0.0; | |
2017 | else | |
2018 | ratio = 100.0 * ((double)pdi->seq_skips / | |
2019 | (double)(pdi->events + pdi->seq_skips)); | |
492da111 | 2020 | fprintf(ofp, "Skips: %'lu forward (%'llu - %5.1lf%%)\n", |
8a82e321 | 2021 | pdi->skips, pdi->seq_skips, ratio); |
e7c9f3ff | 2022 | } |
d0ca268b JA |
2023 | } |
2024 | ||
d025d6c6 HM |
2025 | static void correct_abs_start_time(void) |
2026 | { | |
2027 | long delta = genesis_time - start_timestamp; | |
2028 | ||
2029 | abs_start_time.tv_sec += SECONDS(delta); | |
2030 | abs_start_time.tv_nsec += NANO_SECONDS(delta); | |
2031 | if (abs_start_time.tv_nsec < 0) { | |
2032 | abs_start_time.tv_nsec += 1000000000; | |
2033 | abs_start_time.tv_sec -= 1; | |
2034 | } else | |
2035 | if (abs_start_time.tv_nsec > 1000000000) { | |
2036 | abs_start_time.tv_nsec -= 1000000000; | |
2037 | abs_start_time.tv_sec += 1; | |
2038 | } | |
2039 | } | |
2040 | ||
4f0ae44f JA |
2041 | static void find_genesis(void) |
2042 | { | |
2043 | struct trace *t = trace_list; | |
2044 | ||
2045 | genesis_time = -1ULL; | |
2046 | while (t != NULL) { | |
2047 | if (t->bit->time < genesis_time) | |
2048 | genesis_time = t->bit->time; | |
2049 | ||
2050 | t = t->next; | |
2051 | } | |
7bd4fd0a OK |
2052 | |
2053 | /* The time stamp record will usually be the first | |
2054 | * record in the trace, but not always. | |
2055 | */ | |
2056 | if (start_timestamp | |
2057 | && start_timestamp != genesis_time) { | |
d025d6c6 | 2058 | correct_abs_start_time(); |
7bd4fd0a | 2059 | } |
4f0ae44f JA |
2060 | } |
2061 | ||
7f4d89e6 | 2062 | static inline int check_stopwatch(struct blk_io_trace *bit) |
4f0ae44f | 2063 | { |
7f4d89e6 JA |
2064 | if (bit->time < stopwatch_end && |
2065 | bit->time >= stopwatch_start) | |
4f0ae44f JA |
2066 | return 0; |
2067 | ||
2068 | return 1; | |
2069 | } | |
2070 | ||
53c68c88 JA |
2071 | /* |
2072 | * return youngest entry read | |
2073 | */ | |
2074 | static int sort_entries(unsigned long long *youngest) | |
4f0ae44f | 2075 | { |
210824c3 JA |
2076 | struct per_dev_info *pdi = NULL; |
2077 | struct per_cpu_info *pci = NULL; | |
4f0ae44f | 2078 | struct trace *t; |
4f0ae44f JA |
2079 | |
2080 | if (!genesis_time) | |
2081 | find_genesis(); | |
2082 | ||
d6222db8 | 2083 | *youngest = 0; |
4f0ae44f JA |
2084 | while ((t = trace_list) != NULL) { |
2085 | struct blk_io_trace *bit = t->bit; | |
2086 | ||
2087 | trace_list = t->next; | |
2088 | ||
7f4d89e6 | 2089 | bit->time -= genesis_time; |
4f0ae44f | 2090 | |
d6222db8 JA |
2091 | if (bit->time < *youngest || !*youngest) |
2092 | *youngest = bit->time; | |
2093 | ||
210824c3 JA |
2094 | if (!pdi || pdi->dev != bit->device) { |
2095 | pdi = get_dev_info(bit->device); | |
2096 | pci = NULL; | |
2097 | } | |
2098 | ||
2099 | if (!pci || pci->cpu != bit->cpu) | |
2100 | pci = get_cpu_info(pdi, bit->cpu); | |
2101 | ||
2102 | if (bit->sequence < pci->smallest_seq_read) | |
2103 | pci->smallest_seq_read = bit->sequence; | |
774a1a10 | 2104 | |
7f4d89e6 | 2105 | if (check_stopwatch(bit)) { |
4f0ae44f JA |
2106 | bit_free(bit); |
2107 | t_free(t); | |
2108 | continue; | |
2109 | } | |
2110 | ||
2a1b3424 | 2111 | if (trace_rb_insert_sort(t)) |
53c68c88 | 2112 | return -1; |
4f0ae44f JA |
2113 | } |
2114 | ||
53c68c88 | 2115 | return 0; |
4f0ae44f JA |
2116 | } |
2117 | ||
824c2b39 JA |
2118 | /* |
2119 | * to continue, we must have traces from all online cpus in the tree | |
2120 | */ | |
2121 | static int check_cpu_map(struct per_dev_info *pdi) | |
2122 | { | |
2123 | unsigned long *cpu_map; | |
2124 | struct rb_node *n; | |
2125 | struct trace *__t; | |
2126 | unsigned int i; | |
2127 | int ret, cpu; | |
2128 | ||
2129 | /* | |
2130 | * create a map of the cpus we have traces for | |
2131 | */ | |
2132 | cpu_map = malloc(pdi->cpu_map_max / sizeof(long)); | |
cd992d08 | 2133 | memset(cpu_map, 0, sizeof(*cpu_map)); |
824c2b39 JA |
2134 | n = rb_first(&rb_sort_root); |
2135 | while (n) { | |
2136 | __t = rb_entry(n, struct trace, rb_node); | |
2137 | cpu = __t->bit->cpu; | |
2138 | ||
2139 | cpu_map[CPU_IDX(cpu)] |= (1UL << CPU_BIT(cpu)); | |
2140 | n = rb_next(n); | |
2141 | } | |
2142 | ||
2143 | /* | |
b1c8e614 JA |
2144 | * we can't continue if pdi->cpu_map has entries set that we don't |
2145 | * have in the sort rbtree. the opposite is not a problem, though | |
824c2b39 JA |
2146 | */ |
2147 | ret = 0; | |
2148 | for (i = 0; i < pdi->cpu_map_max / CPUS_PER_LONG; i++) { | |
2149 | if (pdi->cpu_map[i] & ~(cpu_map[i])) { | |
2150 | ret = 1; | |
2151 | break; | |
2152 | } | |
2153 | } | |
2154 | ||
2155 | free(cpu_map); | |
2156 | return ret; | |
2157 | } | |
2158 | ||
a141a7cd | 2159 | static int check_sequence(struct per_dev_info *pdi, struct trace *t, int force) |
2a1b3424 | 2160 | { |
1ca323a5 | 2161 | struct blk_io_trace *bit = t->bit; |
210824c3 JA |
2162 | unsigned long expected_sequence; |
2163 | struct per_cpu_info *pci; | |
1ca323a5 | 2164 | struct trace *__t; |
492da111 | 2165 | |
210824c3 JA |
2166 | pci = get_cpu_info(pdi, bit->cpu); |
2167 | expected_sequence = pci->last_sequence + 1; | |
2168 | ||
774a1a10 | 2169 | if (!expected_sequence) { |
774a1a10 JA |
2170 | /* |
2171 | * 1 should be the first entry, just allow it | |
2172 | */ | |
2173 | if (bit->sequence == 1) | |
2174 | return 0; | |
210824c3 | 2175 | if (bit->sequence == pci->smallest_seq_read) |
79ee9704 | 2176 | return 0; |
774a1a10 | 2177 | |
824c2b39 | 2178 | return check_cpu_map(pdi); |
774a1a10 | 2179 | } |
2a1b3424 JA |
2180 | |
2181 | if (bit->sequence == expected_sequence) | |
2182 | return 0; | |
2183 | ||
2a1b3424 | 2184 | /* |
1c7c54aa JA |
2185 | * we may not have seen that sequence yet. if we are not doing |
2186 | * the final run, break and wait for more entries. | |
1c24add6 | 2187 | */ |
210824c3 JA |
2188 | if (expected_sequence < pci->smallest_seq_read) { |
2189 | __t = trace_rb_find_last(pdi, pci, expected_sequence); | |
1ca323a5 | 2190 | if (!__t) |
1c7c54aa | 2191 | goto skip; |
2a1b3424 | 2192 | |
1ca323a5 | 2193 | __put_trace_last(pdi, __t); |
2a1b3424 | 2194 | return 0; |
a141a7cd JA |
2195 | } else if (!force) { |
2196 | return 1; | |
0b07f23e | 2197 | } else { |
1c7c54aa | 2198 | skip: |
66930177 | 2199 | if (check_current_skips(pci, bit->sequence)) |
492da111 AB |
2200 | return 0; |
2201 | ||
965eca2d | 2202 | if (expected_sequence < bit->sequence) |
66930177 | 2203 | insert_skip(pci, expected_sequence, bit->sequence - 1); |
1c7c54aa JA |
2204 | return 0; |
2205 | } | |
2a1b3424 JA |
2206 | } |
2207 | ||
a649216c | 2208 | static void show_entries_rb(int force) |
8fc0abbc | 2209 | { |
1f7afa72 JA |
2210 | struct per_dev_info *pdi = NULL; |
2211 | struct per_cpu_info *pci = NULL; | |
8fc0abbc | 2212 | struct blk_io_trace *bit; |
3aabcd89 | 2213 | struct rb_node *n; |
8fc0abbc | 2214 | struct trace *t; |
1f7afa72 | 2215 | |
7d747d22 | 2216 | while ((n = rb_first(&rb_sort_root)) != NULL) { |
dd90748f | 2217 | if (is_done() && !force && !pipeline) |
1f7afa72 | 2218 | break; |
8fc0abbc JA |
2219 | |
2220 | t = rb_entry(n, struct trace, rb_node); | |
2221 | bit = t->bit; | |
2222 | ||
a43c1c17 JA |
2223 | if (read_sequence - t->read_sequence < 1 && !force) |
2224 | break; | |
2225 | ||
210824c3 | 2226 | if (!pdi || pdi->dev != bit->device) { |
287fa3d6 | 2227 | pdi = get_dev_info(bit->device); |
210824c3 JA |
2228 | pci = NULL; |
2229 | } | |
1f7afa72 | 2230 | |
e7c9f3ff NS |
2231 | if (!pdi) { |
2232 | fprintf(stderr, "Unknown device ID? (%d,%d)\n", | |
2233 | MAJOR(bit->device), MINOR(bit->device)); | |
2234 | break; | |
2235 | } | |
1f7afa72 | 2236 | |
9bf422b1 TM |
2237 | if (!(bit->action == BLK_TN_MESSAGE) && |
2238 | check_sequence(pdi, t, force)) | |
a141a7cd | 2239 | break; |
cb2a1a62 | 2240 | |
a141a7cd JA |
2241 | if (!force && bit->time > last_allowed_time) |
2242 | break; | |
8fc0abbc | 2243 | |
4f0ae44f | 2244 | check_time(pdi, bit); |
8fc0abbc | 2245 | |
4f0ae44f JA |
2246 | if (!pci || pci->cpu != bit->cpu) |
2247 | pci = get_cpu_info(pdi, bit->cpu); | |
287fa3d6 | 2248 | |
9bf422b1 TM |
2249 | if (!(bit->action == BLK_TN_MESSAGE)) |
2250 | pci->last_sequence = bit->sequence; | |
210824c3 | 2251 | |
cbc927b6 JA |
2252 | pci->nelems++; |
2253 | ||
66930177 | 2254 | if (bit->action & (act_mask << BLK_TC_SHIFT)) |
98f8386b | 2255 | dump_trace(bit, pci, pdi); |
87b72777 | 2256 | |
2a1b3424 | 2257 | put_trace(pdi, t); |
cb2a1a62 | 2258 | } |
8fc0abbc JA |
2259 | } |
2260 | ||
c0e0dbc2 | 2261 | static int read_data(int fd, void *buffer, int bytes, int block, int *fdblock) |
1f79c4a0 JA |
2262 | { |
2263 | int ret, bytes_left, fl; | |
2264 | void *p; | |
2265 | ||
c0e0dbc2 JA |
2266 | if (block != *fdblock) { |
2267 | fl = fcntl(fd, F_GETFL); | |
1f79c4a0 | 2268 | |
c0e0dbc2 JA |
2269 | if (!block) { |
2270 | *fdblock = 0; | |
2271 | fcntl(fd, F_SETFL, fl | O_NONBLOCK); | |
2272 | } else { | |
2273 | *fdblock = 1; | |
2274 | fcntl(fd, F_SETFL, fl & ~O_NONBLOCK); | |
2275 | } | |
2276 | } | |
1f79c4a0 JA |
2277 | |
2278 | bytes_left = bytes; | |
2279 | p = buffer; | |
2280 | while (bytes_left > 0) { | |
2281 | ret = read(fd, p, bytes_left); | |
2282 | if (!ret) | |
2283 | return 1; | |
2284 | else if (ret < 0) { | |
db7e0552 | 2285 | if (errno != EAGAIN) { |
1f79c4a0 | 2286 | perror("read"); |
db7e0552 JA |
2287 | return -1; |
2288 | } | |
a649216c | 2289 | |
5c0f40f7 JA |
2290 | /* |
2291 | * never do partial reads. we can return if we | |
2292 | * didn't read anything and we should not block, | |
2293 | * otherwise wait for data | |
2294 | */ | |
2295 | if ((bytes_left == bytes) && !block) | |
2296 | return 1; | |
2297 | ||
2298 | usleep(10); | |
2299 | continue; | |
1f79c4a0 JA |
2300 | } else { |
2301 | p += ret; | |
2302 | bytes_left -= ret; | |
2303 | } | |
2304 | } | |
2305 | ||
2306 | return 0; | |
2307 | } | |
2308 | ||
017d1660 JA |
2309 | static inline __u16 get_pdulen(struct blk_io_trace *bit) |
2310 | { | |
2311 | if (data_is_native) | |
2312 | return bit->pdu_len; | |
2313 | ||
2314 | return __bswap_16(bit->pdu_len); | |
2315 | } | |
2316 | ||
2317 | static inline __u32 get_magic(struct blk_io_trace *bit) | |
2318 | { | |
2319 | if (data_is_native) | |
2320 | return bit->magic; | |
2321 | ||
2322 | return __bswap_32(bit->magic); | |
2323 | } | |
2324 | ||
c0e0dbc2 | 2325 | static int read_events(int fd, int always_block, int *fdblock) |
cb2a1a62 | 2326 | { |
287fa3d6 | 2327 | struct per_dev_info *pdi = NULL; |
e820abd7 | 2328 | unsigned int events = 0; |
7d747d22 JA |
2329 | |
2330 | while (!is_done() && events < rb_batch) { | |
2331 | struct blk_io_trace *bit; | |
2332 | struct trace *t; | |
db7e0552 | 2333 | int pdu_len, should_block, ret; |
7d747d22 JA |
2334 | __u32 magic; |
2335 | ||
d36421e4 | 2336 | bit = bit_alloc(); |
cb2a1a62 | 2337 | |
c0e0dbc2 JA |
2338 | should_block = !events || always_block; |
2339 | ||
db7e0552 JA |
2340 | ret = read_data(fd, bit, sizeof(*bit), should_block, fdblock); |
2341 | if (ret) { | |
eb9bd4e9 | 2342 | bit_free(bit); |
db7e0552 JA |
2343 | if (!events && ret < 0) |
2344 | events = ret; | |
cb2a1a62 | 2345 | break; |
eb9bd4e9 | 2346 | } |
cb2a1a62 | 2347 | |
017d1660 JA |
2348 | /* |
2349 | * look at first trace to check whether we need to convert | |
2350 | * data in the future | |
2351 | */ | |
9e4cd1b8 | 2352 | if (data_is_native == -1 && check_data_endianness(bit->magic)) |
017d1660 JA |
2353 | break; |
2354 | ||
2355 | magic = get_magic(bit); | |
7d747d22 JA |
2356 | if ((magic & 0xffffff00) != BLK_IO_TRACE_MAGIC) { |
2357 | fprintf(stderr, "Bad magic %x\n", magic); | |
2358 | break; | |
2359 | } | |
2360 | ||
017d1660 | 2361 | pdu_len = get_pdulen(bit); |
7d747d22 JA |
2362 | if (pdu_len) { |
2363 | void *ptr = realloc(bit, sizeof(*bit) + pdu_len); | |
2364 | ||
c0e0dbc2 | 2365 | if (read_data(fd, ptr + sizeof(*bit), pdu_len, 1, fdblock)) { |
eb9bd4e9 | 2366 | bit_free(ptr); |
7d747d22 | 2367 | break; |
eb9bd4e9 | 2368 | } |
7d747d22 JA |
2369 | |
2370 | bit = ptr; | |
2371 | } | |
2372 | ||
d6222db8 JA |
2373 | trace_to_cpu(bit); |
2374 | ||
2375 | if (verify_trace(bit)) { | |
2376 | bit_free(bit); | |
2377 | continue; | |
2378 | } | |
2379 | ||
bfc70ad5 JA |
2380 | /* |
2381 | * not a real trace, so grab and handle it here | |
2382 | */ | |
1a15f6a8 | 2383 | if (bit->action & BLK_TC_ACT(BLK_TC_NOTIFY) && bit->action != BLK_TN_MESSAGE) { |
7bd4fd0a | 2384 | handle_notify(bit); |
a2594911 | 2385 | output_binary(bit, sizeof(*bit) + bit->pdu_len); |
bfc70ad5 JA |
2386 | continue; |
2387 | } | |
2388 | ||
d36421e4 | 2389 | t = t_alloc(); |
cb2a1a62 JA |
2390 | memset(t, 0, sizeof(*t)); |
2391 | t->bit = bit; | |
a43c1c17 | 2392 | t->read_sequence = read_sequence; |
cb2a1a62 | 2393 | |
7d747d22 JA |
2394 | t->next = trace_list; |
2395 | trace_list = t; | |
1f7afa72 | 2396 | |
f7bd1a9b | 2397 | if (!pdi || pdi->dev != bit->device) |
287fa3d6 JA |
2398 | pdi = get_dev_info(bit->device); |
2399 | ||
2400 | if (bit->time > pdi->last_read_time) | |
2401 | pdi->last_read_time = bit->time; | |
2402 | ||
7d747d22 | 2403 | events++; |
cb2a1a62 JA |
2404 | } |
2405 | ||
7d747d22 | 2406 | return events; |
cb2a1a62 JA |
2407 | } |
2408 | ||
70317a16 AB |
2409 | /* |
2410 | * Managing input streams | |
2411 | */ | |
2412 | ||
2413 | struct ms_stream { | |
2414 | struct ms_stream *next; | |
2415 | struct trace *first, *last; | |
73877e12 | 2416 | struct per_dev_info *pdi; |
70317a16 AB |
2417 | unsigned int cpu; |
2418 | }; | |
d0ca268b | 2419 | |
70317a16 | 2420 | #define MS_HASH(d, c) ((MAJOR(d) & 0xff) ^ (MINOR(d) & 0xff) ^ (cpu & 0xff)) |
73877e12 | 2421 | |
70317a16 AB |
2422 | struct ms_stream *ms_head; |
2423 | struct ms_stream *ms_hash[256]; | |
87b72777 | 2424 | |
70317a16 AB |
2425 | static void ms_sort(struct ms_stream *msp); |
2426 | static int ms_prime(struct ms_stream *msp); | |
2427 | ||
2428 | static inline struct trace *ms_peek(struct ms_stream *msp) | |
2429 | { | |
2430 | return (msp == NULL) ? NULL : msp->first; | |
2431 | } | |
d0ca268b | 2432 | |
70317a16 AB |
2433 | static inline __u64 ms_peek_time(struct ms_stream *msp) |
2434 | { | |
2435 | return ms_peek(msp)->bit->time; | |
2436 | } | |
d1d7f15f | 2437 | |
70317a16 AB |
2438 | static inline void ms_resort(struct ms_stream *msp) |
2439 | { | |
2440 | if (msp->next && ms_peek_time(msp) > ms_peek_time(msp->next)) { | |
2441 | ms_head = msp->next; | |
2442 | msp->next = NULL; | |
2443 | ms_sort(msp); | |
2444 | } | |
2445 | } | |
e7c9f3ff | 2446 | |
70317a16 AB |
2447 | static inline void ms_deq(struct ms_stream *msp) |
2448 | { | |
2449 | msp->first = msp->first->next; | |
2450 | if (!msp->first) { | |
2451 | msp->last = NULL; | |
2452 | if (!ms_prime(msp)) { | |
2453 | ms_head = msp->next; | |
2454 | msp->next = NULL; | |
2455 | return; | |
d0ca268b | 2456 | } |
d5396421 JA |
2457 | } |
2458 | ||
70317a16 AB |
2459 | ms_resort(msp); |
2460 | } | |
53c68c88 | 2461 | |
70317a16 AB |
2462 | static void ms_sort(struct ms_stream *msp) |
2463 | { | |
2464 | __u64 msp_t = ms_peek_time(msp); | |
2465 | struct ms_stream *this_msp = ms_head; | |
d5396421 | 2466 | |
70317a16 AB |
2467 | if (this_msp == NULL) |
2468 | ms_head = msp; | |
2469 | else if (msp_t < ms_peek_time(this_msp)) { | |
2470 | msp->next = this_msp; | |
2471 | ms_head = msp; | |
2472 | } | |
2473 | else { | |
2474 | while (this_msp->next && ms_peek_time(this_msp->next) < msp_t) | |
2475 | this_msp = this_msp->next; | |
73877e12 | 2476 | |
70317a16 AB |
2477 | msp->next = this_msp->next; |
2478 | this_msp->next = msp; | |
2479 | } | |
2480 | } | |
d5396421 | 2481 | |
70317a16 AB |
2482 | static int ms_prime(struct ms_stream *msp) |
2483 | { | |
2484 | __u32 magic; | |
2485 | unsigned int i; | |
2486 | struct trace *t; | |
2487 | struct per_dev_info *pdi = msp->pdi; | |
2488 | struct per_cpu_info *pci = get_cpu_info(pdi, msp->cpu); | |
2489 | struct blk_io_trace *bit = NULL; | |
2490 | int ret, pdu_len, ndone = 0; | |
d5396421 | 2491 | |
70317a16 AB |
2492 | for (i = 0; !is_done() && pci->fd >= 0 && i < rb_batch; i++) { |
2493 | bit = bit_alloc(); | |
2494 | ret = read_data(pci->fd, bit, sizeof(*bit), 1, &pci->fdblock); | |
2495 | if (ret) | |
2496 | goto err; | |
51128a28 | 2497 | |
70317a16 AB |
2498 | if (data_is_native == -1 && check_data_endianness(bit->magic)) |
2499 | goto err; | |
210824c3 | 2500 | |
70317a16 AB |
2501 | magic = get_magic(bit); |
2502 | if ((magic & 0xffffff00) != BLK_IO_TRACE_MAGIC) { | |
2503 | fprintf(stderr, "Bad magic %x\n", magic); | |
2504 | goto err; | |
d5396421 | 2505 | |
70317a16 | 2506 | } |
d5396421 | 2507 | |
70317a16 AB |
2508 | pdu_len = get_pdulen(bit); |
2509 | if (pdu_len) { | |
2510 | void *ptr = realloc(bit, sizeof(*bit) + pdu_len); | |
2511 | ret = read_data(pci->fd, ptr + sizeof(*bit), pdu_len, | |
2512 | 1, &pci->fdblock); | |
2513 | if (ret) { | |
2514 | free(ptr); | |
4eb899a6 | 2515 | bit = NULL; |
70317a16 | 2516 | goto err; |
7d747d22 | 2517 | } |
70317a16 AB |
2518 | |
2519 | bit = ptr; | |
2ff323b0 | 2520 | } |
d5396421 | 2521 | |
70317a16 AB |
2522 | trace_to_cpu(bit); |
2523 | if (verify_trace(bit)) | |
2524 | goto err; | |
53c68c88 | 2525 | |
13d48592 TM |
2526 | if (bit->cpu != pci->cpu) { |
2527 | fprintf(stderr, "cpu %d trace info has error cpu %d\n", | |
2528 | pci->cpu, bit->cpu); | |
2529 | continue; | |
2530 | } | |
2531 | ||
1a15f6a8 | 2532 | if (bit->action & BLK_TC_ACT(BLK_TC_NOTIFY) && bit->action != BLK_TN_MESSAGE) { |
7bd4fd0a | 2533 | handle_notify(bit); |
70317a16 AB |
2534 | output_binary(bit, sizeof(*bit) + bit->pdu_len); |
2535 | bit_free(bit); | |
287fa3d6 | 2536 | |
70317a16 AB |
2537 | i -= 1; |
2538 | continue; | |
2539 | } | |
cb2a1a62 | 2540 | |
70317a16 AB |
2541 | if (bit->time > pdi->last_read_time) |
2542 | pdi->last_read_time = bit->time; | |
d5396421 | 2543 | |
70317a16 AB |
2544 | t = t_alloc(); |
2545 | memset(t, 0, sizeof(*t)); | |
2546 | t->bit = bit; | |
2547 | ||
2548 | if (msp->first == NULL) | |
2549 | msp->first = msp->last = t; | |
2550 | else { | |
2551 | msp->last->next = t; | |
2552 | msp->last = t; | |
2553 | } | |
2554 | ||
2555 | ndone++; | |
2556 | } | |
2557 | ||
2558 | return ndone; | |
2559 | ||
2560 | err: | |
2561 | if (bit) bit_free(bit); | |
2562 | ||
2563 | cpu_mark_offline(pdi, pci->cpu); | |
2564 | close(pci->fd); | |
2565 | pci->fd = -1; | |
2566 | ||
2567 | return ndone; | |
2568 | } | |
2569 | ||
2570 | static struct ms_stream *ms_alloc(struct per_dev_info *pdi, int cpu) | |
2571 | { | |
2572 | struct ms_stream *msp = malloc(sizeof(*msp)); | |
2573 | ||
2574 | msp->next = NULL; | |
2575 | msp->first = msp->last = NULL; | |
2576 | msp->pdi = pdi; | |
2577 | msp->cpu = cpu; | |
2578 | ||
2579 | if (ms_prime(msp)) | |
2580 | ms_sort(msp); | |
2581 | ||
2582 | return msp; | |
2583 | } | |
2584 | ||
2585 | static int setup_file(struct per_dev_info *pdi, int cpu) | |
2586 | { | |
2587 | int len = 0; | |
2588 | struct stat st; | |
2589 | char *p, *dname; | |
2590 | struct per_cpu_info *pci = get_cpu_info(pdi, cpu); | |
2591 | ||
2592 | pci->cpu = cpu; | |
2593 | pci->fdblock = -1; | |
2594 | ||
2595 | p = strdup(pdi->name); | |
2596 | dname = dirname(p); | |
2597 | if (strcmp(dname, ".")) { | |
2598 | input_dir = dname; | |
2599 | p = strdup(pdi->name); | |
2600 | strcpy(pdi->name, basename(p)); | |
2601 | } | |
2602 | free(p); | |
2603 | ||
2604 | if (input_dir) | |
2605 | len = sprintf(pci->fname, "%s/", input_dir); | |
2606 | ||
2607 | snprintf(pci->fname + len, sizeof(pci->fname)-1-len, | |
2608 | "%s.blktrace.%d", pdi->name, pci->cpu); | |
8afe3d7d | 2609 | if (stat(pci->fname, &st) < 0) |
70317a16 | 2610 | return 0; |
8afe3d7d AB |
2611 | if (!st.st_size) |
2612 | return 1; | |
70317a16 AB |
2613 | |
2614 | pci->fd = open(pci->fname, O_RDONLY); | |
2615 | if (pci->fd < 0) { | |
2616 | perror(pci->fname); | |
2617 | return 0; | |
2618 | } | |
2619 | ||
2620 | printf("Input file %s added\n", pci->fname); | |
2621 | cpu_mark_online(pdi, pci->cpu); | |
2622 | ||
2623 | pdi->nfiles++; | |
2624 | ms_alloc(pdi, pci->cpu); | |
2625 | ||
2626 | return 1; | |
2627 | } | |
2628 | ||
2629 | static int handle(struct ms_stream *msp) | |
2630 | { | |
2631 | struct trace *t; | |
2632 | struct per_dev_info *pdi; | |
2633 | struct per_cpu_info *pci; | |
2634 | struct blk_io_trace *bit; | |
2635 | ||
2636 | t = ms_peek(msp); | |
70317a16 AB |
2637 | |
2638 | bit = t->bit; | |
2639 | pdi = msp->pdi; | |
2640 | pci = get_cpu_info(pdi, msp->cpu); | |
2641 | pci->nelems++; | |
8091de93 | 2642 | bit->time -= genesis_time; |
7072ee3f LU |
2643 | |
2644 | if (t->bit->time > stopwatch_end) | |
2645 | return 0; | |
2646 | ||
8091de93 | 2647 | pdi->last_reported_time = bit->time; |
7072ee3f LU |
2648 | if ((bit->action & (act_mask << BLK_TC_SHIFT))&& |
2649 | t->bit->time >= stopwatch_start) | |
70317a16 AB |
2650 | dump_trace(bit, pci, pdi); |
2651 | ||
2652 | ms_deq(msp); | |
2653 | ||
2654 | if (text_output) | |
2655 | trace_rb_insert_last(pdi, t); | |
2656 | else { | |
2657 | bit_free(t->bit); | |
2658 | t_free(t); | |
2659 | } | |
2660 | ||
2661 | return 1; | |
2662 | } | |
2663 | ||
7d340756 MZ |
2664 | /* |
2665 | * Check if we need to sanitize the name. We allow 'foo', or if foo.blktrace.X | |
2666 | * is given, then strip back down to 'foo' to avoid missing files. | |
2667 | */ | |
2668 | static int name_fixup(char *name) | |
2669 | { | |
2670 | char *b; | |
2671 | ||
2672 | if (!name) | |
2673 | return 1; | |
2674 | ||
2675 | b = strstr(name, ".blktrace."); | |
2676 | if (b) | |
2677 | *b = '\0'; | |
2678 | ||
2679 | return 0; | |
2680 | } | |
2681 | ||
70317a16 AB |
2682 | static int do_file(void) |
2683 | { | |
7d340756 | 2684 | int i, cpu, ret; |
70317a16 AB |
2685 | struct per_dev_info *pdi; |
2686 | ||
2687 | /* | |
2688 | * first prepare all files for reading | |
2689 | */ | |
2690 | for (i = 0; i < ndevices; i++) { | |
2691 | pdi = &devices[i]; | |
7d340756 MZ |
2692 | ret = name_fixup(pdi->name); |
2693 | if (ret) | |
2694 | return ret; | |
2695 | ||
70317a16 AB |
2696 | for (cpu = 0; setup_file(pdi, cpu); cpu++) |
2697 | ; | |
a2b1f355 ES |
2698 | |
2699 | if (!cpu) { | |
2700 | fprintf(stderr,"No input files found for %s\n", | |
2701 | pdi->name); | |
2702 | return 1; | |
2703 | } | |
70317a16 AB |
2704 | } |
2705 | ||
8091de93 AB |
2706 | /* |
2707 | * Get the initial time stamp | |
2708 | */ | |
2709 | if (ms_head) | |
2710 | genesis_time = ms_peek_time(ms_head); | |
2711 | ||
918e9797 HM |
2712 | /* |
2713 | * Correct abs_start_time if necessary | |
2714 | */ | |
2715 | if (start_timestamp | |
2716 | && start_timestamp != genesis_time) { | |
2717 | correct_abs_start_time(); | |
2718 | } | |
2719 | ||
70317a16 AB |
2720 | /* |
2721 | * Keep processing traces while any are left | |
2722 | */ | |
2723 | while (!is_done() && ms_head && handle(ms_head)) | |
2724 | ; | |
a649216c | 2725 | |
7d747d22 | 2726 | return 0; |
412819ce | 2727 | } |
d5396421 | 2728 | |
67076cbc | 2729 | static void do_pipe(int fd) |
412819ce | 2730 | { |
53c68c88 | 2731 | unsigned long long youngest; |
67076cbc | 2732 | int events, fdblock; |
d5396421 | 2733 | |
be925321 | 2734 | last_allowed_time = -1ULL; |
c0e0dbc2 | 2735 | fdblock = -1; |
db7e0552 | 2736 | while ((events = read_events(fd, 0, &fdblock)) > 0) { |
4ab42801 | 2737 | read_sequence++; |
412819ce | 2738 | |
210824c3 | 2739 | #if 0 |
0b07f23e | 2740 | smallest_seq_read = -1U; |
210824c3 | 2741 | #endif |
0b07f23e | 2742 | |
53c68c88 JA |
2743 | if (sort_entries(&youngest)) |
2744 | break; | |
2745 | ||
2746 | if (youngest > stopwatch_end) | |
2ff323b0 JA |
2747 | break; |
2748 | ||
763d936e | 2749 | show_entries_rb(0); |
0b07f23e | 2750 | } |
d5396421 | 2751 | |
a649216c JA |
2752 | if (rb_sort_entries) |
2753 | show_entries_rb(1); | |
67076cbc JA |
2754 | } |
2755 | ||
2756 | static int do_fifo(void) | |
2757 | { | |
2758 | int fd; | |
2759 | ||
2760 | if (!strcmp(pipename, "-")) | |
2761 | fd = dup(STDIN_FILENO); | |
2762 | else | |
2763 | fd = open(pipename, O_RDONLY); | |
2764 | ||
2765 | if (fd == -1) { | |
2766 | perror("dup stdin"); | |
2767 | return -1; | |
2768 | } | |
a649216c | 2769 | |
67076cbc | 2770 | do_pipe(fd); |
d5396421 | 2771 | close(fd); |
d5396421 JA |
2772 | return 0; |
2773 | } | |
d0ca268b | 2774 | |
cbc927b6 | 2775 | static void show_stats(void) |
412819ce | 2776 | { |
cbc927b6 JA |
2777 | if (!ofp) |
2778 | return; | |
2779 | if (stats_printed) | |
2780 | return; | |
2781 | ||
2782 | stats_printed = 1; | |
2783 | ||
2784 | if (per_process_stats) | |
2785 | show_process_stats(); | |
2786 | ||
2787 | if (per_device_and_cpu_stats) | |
2788 | show_device_and_cpu_stats(); | |
2789 | ||
152f6476 | 2790 | fflush(ofp); |
412819ce JA |
2791 | } |
2792 | ||
e820abd7 | 2793 | static void handle_sigint(__attribute__((__unused__)) int sig) |
412819ce JA |
2794 | { |
2795 | done = 1; | |
412819ce JA |
2796 | } |
2797 | ||
46e6968b NS |
2798 | /* |
2799 | * Extract start and duration times from a string, allowing | |
2800 | * us to specify a time interval of interest within a trace. | |
2801 | * Format: "duration" (start is zero) or "start:duration". | |
2802 | */ | |
2803 | static int find_stopwatch_interval(char *string) | |
2804 | { | |
2805 | double value; | |
2806 | char *sp; | |
2807 | ||
2808 | value = strtod(string, &sp); | |
2809 | if (sp == string) { | |
2810 | fprintf(stderr,"Invalid stopwatch timer: %s\n", string); | |
2811 | return 1; | |
2812 | } | |
2813 | if (*sp == ':') { | |
2814 | stopwatch_start = DOUBLE_TO_NANO_ULL(value); | |
2815 | string = sp + 1; | |
2816 | value = strtod(string, &sp); | |
2817 | if (sp == string || *sp != '\0') { | |
2818 | fprintf(stderr,"Invalid stopwatch duration time: %s\n", | |
2819 | string); | |
2820 | return 1; | |
2821 | } | |
2822 | } else if (*sp != '\0') { | |
2823 | fprintf(stderr,"Invalid stopwatch start timer: %s\n", string); | |
2824 | return 1; | |
2825 | } | |
1b928247 JA |
2826 | stopwatch_end = DOUBLE_TO_NANO_ULL(value); |
2827 | if (stopwatch_end <= stopwatch_start) { | |
2828 | fprintf(stderr, "Invalid stopwatch interval: %Lu -> %Lu\n", | |
2829 | stopwatch_start, stopwatch_end); | |
2830 | return 1; | |
2831 | } | |
2832 | ||
46e6968b NS |
2833 | return 0; |
2834 | } | |
2835 | ||
67076cbc JA |
2836 | static int is_pipe(const char *str) |
2837 | { | |
2838 | struct stat st; | |
2839 | ||
2840 | if (!strcmp(str, "-")) | |
2841 | return 1; | |
2842 | if (!stat(str, &st) && S_ISFIFO(st.st_mode)) | |
2843 | return 1; | |
2844 | ||
2845 | return 0; | |
2846 | } | |
2847 | ||
a7263b8f WZ |
2848 | static int get_program_sort_event(const char *str) |
2849 | { | |
2850 | char evt = str[0]; | |
2851 | ||
2852 | switch (evt) { | |
2853 | case 'N': | |
2854 | per_process_stats_event = SORT_PROG_EVENT_N; | |
2855 | break; | |
2856 | case 'Q': | |
2857 | per_process_stats_event = SORT_PROG_EVENT_QKB; | |
2858 | break; | |
2859 | case 'q': | |
2860 | per_process_stats_event = SORT_PROG_EVENT_QIO; | |
2861 | break; | |
2862 | case 'R': | |
2863 | per_process_stats_event = SORT_PROG_EVENT_RKB; | |
2864 | break; | |
2865 | case 'r': | |
2866 | per_process_stats_event = SORT_PROG_EVENT_RIO; | |
2867 | break; | |
2868 | case 'W': | |
2869 | per_process_stats_event = SORT_PROG_EVENT_WKB; | |
2870 | break; | |
2871 | case 'w': | |
2872 | per_process_stats_event = SORT_PROG_EVENT_WIO; | |
2873 | break; | |
2874 | case 'C': | |
2875 | per_process_stats_event = SORT_PROG_EVENT_CKB; | |
2876 | break; | |
2877 | case 'c': | |
2878 | per_process_stats_event = SORT_PROG_EVENT_CIO; | |
2879 | break; | |
2880 | default: | |
2881 | return 1; | |
2882 | } | |
2883 | ||
2884 | return 0; | |
2885 | } | |
2886 | ||
2887 | #define S_OPTS "a:A:b:D:d:f:F:hi:o:OqsS:tw:vVM" | |
234db09d AB |
2888 | static char usage_str[] = "\n\n" \ |
2889 | "-i <file> | --input=<file>\n" \ | |
2890 | "[ -a <action field> | --act-mask=<action field> ]\n" \ | |
2891 | "[ -A <action mask> | --set-mask=<action mask> ]\n" \ | |
2892 | "[ -b <traces> | --batch=<traces> ]\n" \ | |
2893 | "[ -d <file> | --dump-binary=<file> ]\n" \ | |
2894 | "[ -D <dir> | --input-directory=<dir> ]\n" \ | |
2895 | "[ -f <format> | --format=<format> ]\n" \ | |
2896 | "[ -F <spec> | --format-spec=<spec> ]\n" \ | |
2897 | "[ -h | --hash-by-name ]\n" \ | |
2898 | "[ -o <file> | --output=<file> ]\n" \ | |
2899 | "[ -O | --no-text-output ]\n" \ | |
2900 | "[ -q | --quiet ]\n" \ | |
2901 | "[ -s | --per-program-stats ]\n" \ | |
a7263b8f | 2902 | "[ -S <event> | --sort-program-stats=<event> ]\n" \ |
234db09d AB |
2903 | "[ -t | --track-ios ]\n" \ |
2904 | "[ -w <time> | --stopwatch=<time> ]\n" \ | |
19cfaf3f | 2905 | "[ -M | --no-msgs\n" \ |
234db09d AB |
2906 | "[ -v | --verbose ]\n" \ |
2907 | "[ -V | --version ]\n\n" \ | |
541c9bf6 ES |
2908 | "\t-a Only trace specified actions. See documentation\n" \ |
2909 | "\t-A Give trace mask as a single value. See documentation\n" \ | |
234db09d AB |
2910 | "\t-b stdin read batching\n" \ |
2911 | "\t-d Output file. If specified, binary data is written to file\n" \ | |
d1d7f15f | 2912 | "\t-D Directory to prepend to input file names\n" \ |
234db09d AB |
2913 | "\t-f Output format. Customize the output format. The format field\n" \ |
2914 | "\t identifies can be found in the documentation\n" \ | |
2915 | "\t-F Format specification. Can be found in the documentation\n" \ | |
2916 | "\t-h Hash processes by name, not pid\n" \ | |
2917 | "\t-i Input file containing trace data, or '-' for stdin\n" \ | |
52724a0e | 2918 | "\t-o Output file. If not given, output is stdout\n" \ |
234db09d AB |
2919 | "\t-O Do NOT output text data\n" \ |
2920 | "\t-q Quiet. Don't display any stats at the end of the trace\n" \ | |
52724a0e | 2921 | "\t-s Show per-program io statistics\n" \ |
a7263b8f WZ |
2922 | "\t-S Show per-program io statistics sorted by N/Q/q/R/r/W/w/C/c\n" \ |
2923 | "\t N:Name, Q/q:Queued(read & write), R/r:Queued Read, W/w:Queued Write, C/c:Complete.\n" \ | |
2924 | "\t Sort programs by how much data(KB): Q,R,W,C.\n" \ | |
2925 | "\t Sort programs by how many IO operations: q,r,w,c.\n" \ | |
2926 | "\t if -S was used, the -s parameter will be ignored.\n" \ | |
52724a0e JA |
2927 | "\t-t Track individual ios. Will tell you the time a request took\n" \ |
2928 | "\t to get queued, to get dispatched, and to get completed\n" \ | |
52724a0e JA |
2929 | "\t-w Only parse data between the given time interval in seconds.\n" \ |
2930 | "\t If 'start' isn't given, blkparse defaults the start time to 0\n" \ | |
19cfaf3f | 2931 | "\t-M Do not output messages to binary file\n" \ |
57ea8602 JA |
2932 | "\t-v More verbose for marginal errors\n" \ |
2933 | "\t-V Print program version info\n\n"; | |
52724a0e | 2934 | |
1f79c4a0 JA |
2935 | static void usage(char *prog) |
2936 | { | |
bc14c53f | 2937 | fprintf(stderr, "Usage: %s %s", prog, usage_str); |
1f79c4a0 JA |
2938 | } |
2939 | ||
d5396421 JA |
2940 | int main(int argc, char *argv[]) |
2941 | { | |
98f8386b | 2942 | int i, c, ret, mode; |
98f8386b | 2943 | int act_mask_tmp = 0; |
234db09d | 2944 | char *ofp_buffer = NULL; |
346d8a74 | 2945 | char *bin_ofp_buffer = NULL; |
d5396421 JA |
2946 | |
2947 | while ((c = getopt_long(argc, argv, S_OPTS, l_opts, NULL)) != -1) { | |
2948 | switch (c) { | |
98f8386b AB |
2949 | case 'a': |
2950 | i = find_mask_map(optarg); | |
2951 | if (i < 0) { | |
2952 | fprintf(stderr,"Invalid action mask %s\n", | |
2953 | optarg); | |
2954 | return 1; | |
2955 | } | |
2956 | act_mask_tmp |= i; | |
2957 | break; | |
2958 | ||
2959 | case 'A': | |
2960 | if ((sscanf(optarg, "%x", &i) != 1) || | |
2961 | !valid_act_opt(i)) { | |
2962 | fprintf(stderr, | |
2963 | "Invalid set action mask %s/0x%x\n", | |
2964 | optarg, i); | |
2965 | return 1; | |
2966 | } | |
2967 | act_mask_tmp = i; | |
2968 | break; | |
d5396421 | 2969 | case 'i': |
67076cbc | 2970 | if (is_pipe(optarg) && !pipeline) { |
e7c9f3ff | 2971 | pipeline = 1; |
67076cbc JA |
2972 | pipename = strdup(optarg); |
2973 | } else if (resize_devices(optarg) != 0) | |
e7c9f3ff | 2974 | return 1; |
d5396421 | 2975 | break; |
d1d7f15f JA |
2976 | case 'D': |
2977 | input_dir = optarg; | |
2978 | break; | |
d5396421 | 2979 | case 'o': |
66efebf8 | 2980 | output_name = optarg; |
d5396421 | 2981 | break; |
234db09d AB |
2982 | case 'O': |
2983 | text_output = 0; | |
2984 | break; | |
79f19470 JA |
2985 | case 'b': |
2986 | rb_batch = atoi(optarg); | |
2987 | if (rb_batch <= 0) | |
2988 | rb_batch = RB_BATCH_DEFAULT; | |
2989 | break; | |
152f6476 JA |
2990 | case 's': |
2991 | per_process_stats = 1; | |
2992 | break; | |
a7263b8f WZ |
2993 | case 'S': |
2994 | per_process_stats = 1; | |
2995 | if (get_program_sort_event(optarg)) | |
2996 | return 1; | |
2997 | break; | |
7997c5b0 JA |
2998 | case 't': |
2999 | track_ios = 1; | |
3000 | break; | |
1e1c60f1 NS |
3001 | case 'q': |
3002 | per_device_and_cpu_stats = 0; | |
3003 | break; | |
46e6968b NS |
3004 | case 'w': |
3005 | if (find_stopwatch_interval(optarg) != 0) | |
3006 | return 1; | |
3007 | break; | |
ab197ca7 AB |
3008 | case 'f': |
3009 | set_all_format_specs(optarg); | |
3010 | break; | |
3011 | case 'F': | |
3012 | if (add_format_spec(optarg) != 0) | |
3013 | return 1; | |
3014 | break; | |
d915dee6 | 3015 | case 'h': |
715d8021 | 3016 | ppi_hash_by_pid = 0; |
bf0720af | 3017 | break; |
52724a0e | 3018 | case 'v': |
57ea8602 JA |
3019 | verbose++; |
3020 | break; | |
3021 | case 'V': | |
52724a0e JA |
3022 | printf("%s version %s\n", argv[0], blkparse_version); |
3023 | return 0; | |
a2594911 AB |
3024 | case 'd': |
3025 | dump_binary = optarg; | |
3026 | break; | |
19cfaf3f AB |
3027 | case 'M': |
3028 | bin_output_msgs = 0; | |
3029 | break; | |
d5396421 | 3030 | default: |
1f79c4a0 | 3031 | usage(argv[0]); |
d5396421 JA |
3032 | return 1; |
3033 | } | |
d0ca268b JA |
3034 | } |
3035 | ||
e7c9f3ff | 3036 | while (optind < argc) { |
67076cbc | 3037 | if (is_pipe(argv[optind]) && !pipeline) { |
e7c9f3ff | 3038 | pipeline = 1; |
00cd3044 | 3039 | pipename = strdup(argv[optind]); |
67076cbc | 3040 | } else if (resize_devices(argv[optind]) != 0) |
e7c9f3ff NS |
3041 | return 1; |
3042 | optind++; | |
3043 | } | |
3044 | ||
3045 | if (!pipeline && !ndevices) { | |
1f79c4a0 | 3046 | usage(argv[0]); |
d5396421 JA |
3047 | return 1; |
3048 | } | |
3049 | ||
98f8386b AB |
3050 | if (act_mask_tmp != 0) |
3051 | act_mask = act_mask_tmp; | |
3052 | ||
7997c5b0 | 3053 | memset(&rb_sort_root, 0, sizeof(rb_sort_root)); |
412819ce JA |
3054 | |
3055 | signal(SIGINT, handle_sigint); | |
3056 | signal(SIGHUP, handle_sigint); | |
3057 | signal(SIGTERM, handle_sigint); | |
d5396421 | 3058 | |
d69db225 JA |
3059 | setlocale(LC_NUMERIC, "en_US"); |
3060 | ||
234db09d AB |
3061 | if (text_output) { |
3062 | if (!output_name) { | |
3063 | ofp = fdopen(STDOUT_FILENO, "w"); | |
3064 | mode = _IOLBF; | |
3065 | } else { | |
c3ce73f5 | 3066 | char ofname[PATH_MAX]; |
152f6476 | 3067 | |
234db09d AB |
3068 | snprintf(ofname, sizeof(ofname) - 1, "%s", output_name); |
3069 | ofp = fopen(ofname, "w"); | |
3070 | mode = _IOFBF; | |
3071 | } | |
152f6476 | 3072 | |
234db09d AB |
3073 | if (!ofp) { |
3074 | perror("fopen"); | |
3075 | return 1; | |
3076 | } | |
152f6476 | 3077 | |
234db09d AB |
3078 | ofp_buffer = malloc(4096); |
3079 | if (setvbuf(ofp, ofp_buffer, mode, 4096)) { | |
3080 | perror("setvbuf"); | |
3081 | return 1; | |
3082 | } | |
152f6476 JA |
3083 | } |
3084 | ||
a2594911 | 3085 | if (dump_binary) { |
cf659442 JA |
3086 | if (!strcmp(dump_binary, "-")) |
3087 | dump_fp = stdout; | |
3088 | else { | |
3089 | dump_fp = fopen(dump_binary, "w"); | |
3090 | if (!dump_fp) { | |
3091 | perror(dump_binary); | |
3092 | dump_binary = NULL; | |
3093 | return 1; | |
3094 | } | |
a2594911 | 3095 | } |
346d8a74 AB |
3096 | bin_ofp_buffer = malloc(128 * 1024); |
3097 | if (setvbuf(dump_fp, bin_ofp_buffer, _IOFBF, 128 * 1024)) { | |
3098 | perror("setvbuf binary"); | |
3099 | return 1; | |
3100 | } | |
a2594911 AB |
3101 | } |
3102 | ||
e7c9f3ff | 3103 | if (pipeline) |
67076cbc | 3104 | ret = do_fifo(); |
d5396421 JA |
3105 | else |
3106 | ret = do_file(); | |
3107 | ||
fb863d7c MZ |
3108 | if (!ret) |
3109 | show_stats(); | |
3110 | ||
c701176c MP |
3111 | if (have_drv_data && !dump_binary) |
3112 | printf("\ndiscarded traces containing low-level device driver " | |
3113 | "specific data (only available in binary output)\n"); | |
3114 | ||
8091de93 AB |
3115 | if (ofp_buffer) { |
3116 | fflush(ofp); | |
234db09d | 3117 | free(ofp_buffer); |
8091de93 AB |
3118 | } |
3119 | if (bin_ofp_buffer) { | |
3120 | fflush(dump_fp); | |
346d8a74 | 3121 | free(bin_ofp_buffer); |
8091de93 | 3122 | } |
d5396421 | 3123 | return ret; |
d0ca268b | 3124 | } |