Commit | Line | Data |
---|---|---|
d956a2cd JA |
1 | /* |
2 | * block queue tracing parse application | |
3 | * | |
4 | * Copyright (C) 2005 Jens Axboe <axboe@suse.de> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
d0ca268b JA |
21 | #include <sys/types.h> |
22 | #include <sys/stat.h> | |
23 | #include <unistd.h> | |
24 | #include <stdio.h> | |
25 | #include <fcntl.h> | |
26 | #include <stdlib.h> | |
8fc0abbc | 27 | #include <string.h> |
d5396421 | 28 | #include <getopt.h> |
412819ce JA |
29 | #include <errno.h> |
30 | #include <signal.h> | |
d69db225 | 31 | #include <locale.h> |
6e0073ed | 32 | #include <libgen.h> |
d0ca268b | 33 | |
8fc0abbc JA |
34 | #include "blktrace.h" |
35 | #include "rbtree.h" | |
bf0720af | 36 | #include "jhash.h" |
d0ca268b | 37 | |
13d928f0 | 38 | static char blkparse_version[] = "0.99"; |
52724a0e | 39 | |
492da111 AB |
40 | struct skip_info { |
41 | unsigned long start, end; | |
42 | struct skip_info *prev, *next; | |
43 | }; | |
44 | ||
e7c9f3ff | 45 | struct per_dev_info { |
f7bd1a9b | 46 | dev_t dev; |
e7c9f3ff NS |
47 | char *name; |
48 | ||
49 | int backwards; | |
50 | unsigned long long events; | |
20ed6177 | 51 | unsigned long long first_reported_time; |
e7c9f3ff | 52 | unsigned long long last_reported_time; |
287fa3d6 | 53 | unsigned long long last_read_time; |
e7c9f3ff | 54 | struct io_stats io_stats; |
dce0f678 AB |
55 | unsigned long skips, nskips; |
56 | unsigned long long seq_skips, seq_nskips; | |
649c7b66 JA |
57 | unsigned int max_depth[2]; |
58 | unsigned int cur_depth[2]; | |
e7c9f3ff | 59 | |
f7bd1a9b JA |
60 | struct rb_root rb_track; |
61 | ||
73877e12 | 62 | int nfiles; |
e7c9f3ff | 63 | int ncpus; |
824c2b39 JA |
64 | |
65 | unsigned long *cpu_map; | |
66 | unsigned int cpu_map_max; | |
67 | ||
e7c9f3ff NS |
68 | struct per_cpu_info *cpus; |
69 | }; | |
70 | ||
152f6476 JA |
71 | struct per_process_info { |
72 | char name[16]; | |
73 | __u32 pid; | |
74 | struct io_stats io_stats; | |
75 | struct per_process_info *hash_next, *list_next; | |
715d8021 | 76 | int more_than_one; |
50adc0ba JA |
77 | |
78 | /* | |
79 | * individual io stats | |
80 | */ | |
b9d40d6f JA |
81 | unsigned long long longest_allocation_wait[2]; |
82 | unsigned long long longest_dispatch_wait[2]; | |
83 | unsigned long long longest_completion_wait[2]; | |
d0ca268b JA |
84 | }; |
85 | ||
152f6476 | 86 | #define PPI_HASH_SHIFT (8) |
bf0720af JA |
87 | #define PPI_HASH_SIZE (1 << PPI_HASH_SHIFT) |
88 | #define PPI_HASH_MASK (PPI_HASH_SIZE - 1) | |
89 | static struct per_process_info *ppi_hash_table[PPI_HASH_SIZE]; | |
152f6476 | 90 | static struct per_process_info *ppi_list; |
886ecf0e | 91 | static int ppi_list_entries; |
152f6476 | 92 | |
d915dee6 | 93 | #define S_OPTS "a:A:i:o:b:stqw:f:F:vVhD:" |
d5396421 | 94 | static struct option l_opts[] = { |
98f8386b AB |
95 | { |
96 | .name = "act-mask", | |
97 | .has_arg = required_argument, | |
98 | .flag = NULL, | |
99 | .val = 'a' | |
100 | }, | |
101 | { | |
102 | .name = "set-mask", | |
103 | .has_arg = required_argument, | |
104 | .flag = NULL, | |
105 | .val = 'A' | |
106 | }, | |
d5396421 JA |
107 | { |
108 | .name = "input", | |
428683db | 109 | .has_arg = required_argument, |
d5396421 JA |
110 | .flag = NULL, |
111 | .val = 'i' | |
112 | }, | |
113 | { | |
114 | .name = "output", | |
428683db | 115 | .has_arg = required_argument, |
d5396421 JA |
116 | .flag = NULL, |
117 | .val = 'o' | |
118 | }, | |
79f19470 JA |
119 | { |
120 | .name = "batch", | |
428683db | 121 | .has_arg = required_argument, |
79f19470 JA |
122 | .flag = NULL, |
123 | .val = 'b' | |
124 | }, | |
152f6476 | 125 | { |
3f65c585 | 126 | .name = "per-program-stats", |
428683db | 127 | .has_arg = no_argument, |
152f6476 JA |
128 | .flag = NULL, |
129 | .val = 's' | |
130 | }, | |
7997c5b0 | 131 | { |
3f65c585 | 132 | .name = "track-ios", |
428683db | 133 | .has_arg = no_argument, |
7997c5b0 JA |
134 | .flag = NULL, |
135 | .val = 't' | |
136 | }, | |
1e1c60f1 NS |
137 | { |
138 | .name = "quiet", | |
428683db | 139 | .has_arg = no_argument, |
1e1c60f1 NS |
140 | .flag = NULL, |
141 | .val = 'q' | |
142 | }, | |
46e6968b NS |
143 | { |
144 | .name = "stopwatch", | |
428683db | 145 | .has_arg = required_argument, |
46e6968b NS |
146 | .flag = NULL, |
147 | .val = 'w' | |
148 | }, | |
ab197ca7 AB |
149 | { |
150 | .name = "format", | |
428683db | 151 | .has_arg = required_argument, |
ab197ca7 AB |
152 | .flag = NULL, |
153 | .val = 'f' | |
154 | }, | |
155 | { | |
156 | .name = "format-spec", | |
428683db | 157 | .has_arg = required_argument, |
ab197ca7 AB |
158 | .flag = NULL, |
159 | .val = 'F' | |
160 | }, | |
bf0720af | 161 | { |
3f65c585 | 162 | .name = "hash-by-name", |
bf0720af JA |
163 | .has_arg = no_argument, |
164 | .flag = NULL, | |
d915dee6 | 165 | .val = 'h' |
bf0720af | 166 | }, |
7d1c0411 | 167 | { |
57ea8602 | 168 | .name = "verbose", |
7d1c0411 JA |
169 | .has_arg = no_argument, |
170 | .flag = NULL, | |
57ea8602 | 171 | .val = 'v' |
7d1c0411 | 172 | }, |
52724a0e JA |
173 | { |
174 | .name = "version", | |
175 | .has_arg = no_argument, | |
176 | .flag = NULL, | |
57ea8602 | 177 | .val = 'V' |
52724a0e | 178 | }, |
d1d7f15f | 179 | { |
3f65c585 | 180 | .name = "input-directory", |
d1d7f15f JA |
181 | .has_arg = required_argument, |
182 | .flag = NULL, | |
183 | .val = 'D' | |
184 | }, | |
71ef8b7c JA |
185 | { |
186 | .name = NULL, | |
187 | } | |
d5396421 JA |
188 | }; |
189 | ||
7997c5b0 JA |
190 | /* |
191 | * for sorting the displayed output | |
192 | */ | |
8fc0abbc JA |
193 | struct trace { |
194 | struct blk_io_trace *bit; | |
195 | struct rb_node rb_node; | |
cb2a1a62 | 196 | struct trace *next; |
8fc0abbc JA |
197 | }; |
198 | ||
cb2a1a62 | 199 | static struct rb_root rb_sort_root; |
a649216c JA |
200 | static unsigned long rb_sort_entries; |
201 | ||
cb2a1a62 JA |
202 | static struct trace *trace_list; |
203 | ||
d36421e4 JA |
204 | /* |
205 | * allocation cache | |
206 | */ | |
207 | static struct blk_io_trace *bit_alloc_list; | |
208 | static struct trace *t_alloc_list; | |
209 | ||
7997c5b0 JA |
210 | /* |
211 | * for tracking individual ios | |
212 | */ | |
213 | struct io_track { | |
214 | struct rb_node rb_node; | |
215 | ||
216 | __u64 sector; | |
217 | __u32 pid; | |
bf0720af | 218 | char comm[16]; |
95c15013 | 219 | unsigned long long allocation_time; |
7997c5b0 JA |
220 | unsigned long long queue_time; |
221 | unsigned long long dispatch_time; | |
222 | unsigned long long completion_time; | |
223 | }; | |
224 | ||
e7c9f3ff NS |
225 | static int ndevices; |
226 | static struct per_dev_info *devices; | |
227 | static char *get_dev_name(struct per_dev_info *, char *, int); | |
210824c3 | 228 | static int trace_rb_insert_last(struct per_dev_info *, struct trace *); |
d0ca268b | 229 | |
71d5d4c9 | 230 | FILE *ofp = NULL; |
e7c9f3ff | 231 | static char *output_name; |
d1d7f15f | 232 | static char *input_dir; |
e7c9f3ff NS |
233 | |
234 | static unsigned long long genesis_time; | |
287fa3d6 | 235 | static unsigned long long last_allowed_time; |
46e6968b | 236 | static unsigned long long stopwatch_start; /* start from zero by default */ |
bc171579 | 237 | static unsigned long long stopwatch_end = -1ULL; /* "infinity" */ |
152f6476 JA |
238 | |
239 | static int per_process_stats; | |
cbc927b6 | 240 | static int per_device_and_cpu_stats = 1; |
7997c5b0 | 241 | static int track_ios; |
bf0720af | 242 | static int ppi_hash_by_pid = 1; |
57ea8602 | 243 | static int verbose; |
98f8386b | 244 | static unsigned int act_mask = -1U; |
cbc927b6 | 245 | static int stats_printed; |
d0ca268b | 246 | |
1d24fc14 JA |
247 | static unsigned int t_alloc_cache; |
248 | static unsigned int bit_alloc_cache; | |
249 | ||
7d747d22 | 250 | #define RB_BATCH_DEFAULT (512) |
e820abd7 | 251 | static unsigned int rb_batch = RB_BATCH_DEFAULT; |
79f19470 | 252 | |
e7c9f3ff NS |
253 | static int pipeline; |
254 | ||
412819ce JA |
255 | #define is_done() (*(volatile int *)(&done)) |
256 | static volatile int done; | |
257 | ||
bf0720af JA |
258 | #define JHASH_RANDOM (0x3af5f2ee) |
259 | ||
824c2b39 JA |
260 | #define CPUS_PER_LONG (8 * sizeof(unsigned long)) |
261 | #define CPU_IDX(cpu) ((cpu) / CPUS_PER_LONG) | |
262 | #define CPU_BIT(cpu) ((cpu) & (CPUS_PER_LONG - 1)) | |
263 | ||
210824c3 JA |
264 | static void resize_cpu_info(struct per_dev_info *pdi, int cpu) |
265 | { | |
266 | struct per_cpu_info *cpus = pdi->cpus; | |
267 | int ncpus = pdi->ncpus; | |
268 | int new_count = cpu + 1; | |
269 | int new_space, size; | |
270 | char *new_start; | |
271 | ||
272 | size = new_count * sizeof(struct per_cpu_info); | |
273 | cpus = realloc(cpus, size); | |
274 | if (!cpus) { | |
275 | char name[20]; | |
276 | fprintf(stderr, "Out of memory, CPU info for device %s (%d)\n", | |
277 | get_dev_name(pdi, name, sizeof(name)), size); | |
278 | exit(1); | |
279 | } | |
280 | ||
281 | new_start = (char *)cpus + (ncpus * sizeof(struct per_cpu_info)); | |
282 | new_space = (new_count - ncpus) * sizeof(struct per_cpu_info); | |
283 | memset(new_start, 0, new_space); | |
284 | ||
285 | pdi->ncpus = new_count; | |
286 | pdi->cpus = cpus; | |
287 | ||
288 | for (new_count = 0; new_count < pdi->ncpus; new_count++) { | |
289 | struct per_cpu_info *pci = &pdi->cpus[new_count]; | |
290 | ||
291 | if (!pci->fd) { | |
292 | pci->fd = -1; | |
293 | memset(&pci->rb_last, 0, sizeof(pci->rb_last)); | |
294 | pci->rb_last_entries = 0; | |
295 | pci->last_sequence = -1; | |
296 | } | |
297 | } | |
298 | } | |
299 | ||
300 | static struct per_cpu_info *get_cpu_info(struct per_dev_info *pdi, int cpu) | |
301 | { | |
302 | struct per_cpu_info *pci; | |
303 | ||
304 | if (cpu >= pdi->ncpus) | |
305 | resize_cpu_info(pdi, cpu); | |
306 | ||
307 | pci = &pdi->cpus[cpu]; | |
308 | pci->cpu = cpu; | |
309 | return pci; | |
310 | } | |
311 | ||
312 | ||
313 | static int resize_devices(char *name) | |
314 | { | |
315 | int size = (ndevices + 1) * sizeof(struct per_dev_info); | |
316 | ||
317 | devices = realloc(devices, size); | |
318 | if (!devices) { | |
319 | fprintf(stderr, "Out of memory, device %s (%d)\n", name, size); | |
320 | return 1; | |
321 | } | |
322 | memset(&devices[ndevices], 0, sizeof(struct per_dev_info)); | |
323 | devices[ndevices].name = name; | |
324 | ndevices++; | |
325 | return 0; | |
326 | } | |
327 | ||
328 | static struct per_dev_info *get_dev_info(dev_t dev) | |
329 | { | |
330 | struct per_dev_info *pdi; | |
331 | int i; | |
332 | ||
333 | for (i = 0; i < ndevices; i++) { | |
334 | if (!devices[i].dev) | |
335 | devices[i].dev = dev; | |
336 | if (devices[i].dev == dev) | |
337 | return &devices[i]; | |
338 | } | |
339 | ||
340 | if (resize_devices(NULL)) | |
341 | return NULL; | |
342 | ||
343 | pdi = &devices[ndevices - 1]; | |
344 | pdi->dev = dev; | |
345 | pdi->first_reported_time = 0; | |
346 | pdi->last_read_time = 0; | |
210824c3 JA |
347 | |
348 | return pdi; | |
349 | } | |
350 | ||
66930177 | 351 | static void insert_skip(struct per_cpu_info *pci, unsigned long start, |
492da111 AB |
352 | unsigned long end) |
353 | { | |
354 | struct skip_info *sip; | |
355 | ||
66930177 | 356 | for (sip = pci->skips_tail; sip != NULL; sip = sip->prev) { |
492da111 AB |
357 | if (end == (sip->start - 1)) { |
358 | sip->start = start; | |
359 | return; | |
360 | } else if (start == (sip->end + 1)) { | |
361 | sip->end = end; | |
362 | return; | |
363 | } | |
364 | } | |
365 | ||
366 | sip = malloc(sizeof(struct skip_info)); | |
367 | sip->start = start; | |
368 | sip->end = end; | |
369 | sip->prev = sip->next = NULL; | |
66930177 JA |
370 | if (pci->skips_tail == NULL) |
371 | pci->skips_head = pci->skips_tail = sip; | |
492da111 | 372 | else { |
66930177 JA |
373 | sip->prev = pci->skips_tail; |
374 | pci->skips_tail->next = sip; | |
375 | pci->skips_tail = sip; | |
492da111 AB |
376 | } |
377 | } | |
378 | ||
66930177 | 379 | static void remove_sip(struct per_cpu_info *pci, struct skip_info *sip) |
492da111 AB |
380 | { |
381 | if (sip->prev == NULL) { | |
382 | if (sip->next == NULL) | |
66930177 | 383 | pci->skips_head = pci->skips_tail = NULL; |
492da111 | 384 | else { |
66930177 | 385 | pci->skips_head = sip->next; |
492da111 AB |
386 | sip->next->prev = NULL; |
387 | } | |
388 | } else if (sip->next == NULL) { | |
66930177 | 389 | pci->skips_tail = sip->prev; |
492da111 AB |
390 | sip->prev->next = NULL; |
391 | } else { | |
392 | sip->prev->next = sip->next; | |
393 | sip->next->prev = sip->prev; | |
394 | } | |
395 | ||
396 | sip->prev = sip->next = NULL; | |
397 | free(sip); | |
398 | } | |
399 | ||
400 | #define IN_SKIP(sip,seq) (((sip)->start <= (seq)) && ((seq) <= sip->end)) | |
66930177 | 401 | static int check_current_skips(struct per_cpu_info *pci, unsigned long seq) |
492da111 AB |
402 | { |
403 | struct skip_info *sip; | |
404 | ||
66930177 JA |
405 | for (sip = pci->skips_tail; sip != NULL; sip = sip->prev) { |
406 | if (IN_SKIP(sip, seq)) { | |
492da111 AB |
407 | if (sip->start == seq) { |
408 | if (sip->end == seq) | |
66930177 | 409 | remove_sip(pci, sip); |
492da111 AB |
410 | else |
411 | sip->start += 1; | |
412 | } else if (sip->end == seq) | |
413 | sip->end -= 1; | |
414 | else { | |
415 | sip->end = seq - 1; | |
66930177 | 416 | insert_skip(pci, seq + 1, sip->end); |
492da111 AB |
417 | } |
418 | return 1; | |
419 | } | |
420 | } | |
66930177 | 421 | |
492da111 AB |
422 | return 0; |
423 | } | |
424 | ||
425 | static void collect_pdi_skips(struct per_dev_info *pdi) | |
426 | { | |
427 | struct skip_info *sip; | |
66930177 | 428 | int cpu; |
492da111 AB |
429 | |
430 | pdi->skips = 0; | |
431 | pdi->seq_skips = 0; | |
66930177 JA |
432 | |
433 | for (cpu = 0; cpu < pdi->ncpus; cpu++) { | |
434 | struct per_cpu_info *pci = &pdi->cpus[cpu]; | |
435 | ||
436 | for (sip = pci->skips_head; sip != NULL; sip = sip->next) { | |
437 | pdi->skips++; | |
438 | pdi->seq_skips += (sip->end - sip->start + 1); | |
439 | if (verbose) | |
440 | fprintf(stderr,"(%d,%d): skipping %lu -> %lu\n", | |
441 | MAJOR(pdi->dev), MINOR(pdi->dev), | |
442 | sip->start, sip->end); | |
443 | } | |
492da111 AB |
444 | } |
445 | } | |
446 | ||
824c2b39 JA |
447 | static void cpu_mark_online(struct per_dev_info *pdi, unsigned int cpu) |
448 | { | |
449 | if (cpu >= pdi->cpu_map_max || !pdi->cpu_map) { | |
450 | int new_max = (cpu + CPUS_PER_LONG) & ~(CPUS_PER_LONG - 1); | |
451 | unsigned long *map = malloc(new_max / sizeof(long)); | |
452 | ||
453 | memset(map, 0, new_max / sizeof(long)); | |
454 | ||
455 | if (pdi->cpu_map) { | |
456 | memcpy(map, pdi->cpu_map, pdi->cpu_map_max / sizeof(long)); | |
457 | free(pdi->cpu_map); | |
458 | } | |
459 | ||
460 | pdi->cpu_map = map; | |
461 | pdi->cpu_map_max = new_max; | |
462 | } | |
463 | ||
464 | pdi->cpu_map[CPU_IDX(cpu)] |= (1UL << CPU_BIT(cpu)); | |
465 | } | |
466 | ||
467 | static inline void cpu_mark_offline(struct per_dev_info *pdi, int cpu) | |
468 | { | |
469 | pdi->cpu_map[CPU_IDX(cpu)] &= ~(1UL << CPU_BIT(cpu)); | |
470 | } | |
471 | ||
472 | static inline int cpu_is_online(struct per_dev_info *pdi, int cpu) | |
473 | { | |
474 | return (pdi->cpu_map[CPU_IDX(cpu)] & (1UL << CPU_BIT(cpu))) != 0; | |
475 | } | |
476 | ||
bf0720af JA |
477 | static inline int ppi_hash_pid(__u32 pid) |
478 | { | |
479 | return jhash_1word(pid, JHASH_RANDOM) & PPI_HASH_MASK; | |
480 | } | |
481 | ||
482 | static inline int ppi_hash_name(const char *name) | |
152f6476 | 483 | { |
bf0720af JA |
484 | return jhash(name, 16, JHASH_RANDOM) & PPI_HASH_MASK; |
485 | } | |
486 | ||
487 | static inline int ppi_hash(struct per_process_info *ppi) | |
488 | { | |
489 | if (ppi_hash_by_pid) | |
490 | return ppi_hash_pid(ppi->pid); | |
491 | ||
bf0720af | 492 | return ppi_hash_name(ppi->name); |
152f6476 JA |
493 | } |
494 | ||
495 | static inline void add_process_to_hash(struct per_process_info *ppi) | |
496 | { | |
bf0720af | 497 | const int hash_idx = ppi_hash(ppi); |
152f6476 | 498 | |
bf0720af JA |
499 | ppi->hash_next = ppi_hash_table[hash_idx]; |
500 | ppi_hash_table[hash_idx] = ppi; | |
152f6476 JA |
501 | } |
502 | ||
503 | static inline void add_process_to_list(struct per_process_info *ppi) | |
504 | { | |
505 | ppi->list_next = ppi_list; | |
506 | ppi_list = ppi; | |
886ecf0e | 507 | ppi_list_entries++; |
152f6476 JA |
508 | } |
509 | ||
bf0720af JA |
510 | static struct per_process_info *find_process_by_name(char *name) |
511 | { | |
512 | const int hash_idx = ppi_hash_name(name); | |
513 | struct per_process_info *ppi; | |
514 | ||
515 | ppi = ppi_hash_table[hash_idx]; | |
516 | while (ppi) { | |
517 | if (!strcmp(ppi->name, name)) | |
518 | return ppi; | |
519 | ||
520 | ppi = ppi->hash_next; | |
521 | } | |
522 | ||
523 | return NULL; | |
524 | } | |
525 | ||
152f6476 JA |
526 | static struct per_process_info *find_process_by_pid(__u32 pid) |
527 | { | |
bf0720af | 528 | const int hash_idx = ppi_hash_pid(pid); |
152f6476 JA |
529 | struct per_process_info *ppi; |
530 | ||
bf0720af | 531 | ppi = ppi_hash_table[hash_idx]; |
152f6476 JA |
532 | while (ppi) { |
533 | if (ppi->pid == pid) | |
534 | return ppi; | |
535 | ||
536 | ppi = ppi->hash_next; | |
537 | } | |
538 | ||
539 | return NULL; | |
540 | } | |
541 | ||
bf0720af JA |
542 | static struct per_process_info *find_process(__u32 pid, char *name) |
543 | { | |
715d8021 JA |
544 | struct per_process_info *ppi; |
545 | ||
bf0720af JA |
546 | if (ppi_hash_by_pid) |
547 | return find_process_by_pid(pid); | |
548 | ||
715d8021 JA |
549 | ppi = find_process_by_name(name); |
550 | if (ppi && ppi->pid != pid) | |
551 | ppi->more_than_one = 1; | |
552 | ||
553 | return ppi; | |
bf0720af JA |
554 | } |
555 | ||
210824c3 JA |
556 | /* |
557 | * struct trace and blktrace allocation cache, we do potentially | |
558 | * millions of mallocs for these structures while only using at most | |
559 | * a few thousand at the time | |
560 | */ | |
561 | static inline void t_free(struct trace *t) | |
562 | { | |
563 | if (t_alloc_cache < 1024) { | |
564 | t->next = t_alloc_list; | |
565 | t_alloc_list = t; | |
566 | t_alloc_cache++; | |
567 | } else | |
568 | free(t); | |
569 | } | |
570 | ||
571 | static inline struct trace *t_alloc(void) | |
572 | { | |
573 | struct trace *t = t_alloc_list; | |
574 | ||
575 | if (t) { | |
576 | t_alloc_list = t->next; | |
577 | t_alloc_cache--; | |
578 | return t; | |
579 | } | |
580 | ||
581 | return malloc(sizeof(*t)); | |
582 | } | |
583 | ||
584 | static inline void bit_free(struct blk_io_trace *bit) | |
585 | { | |
586 | if (bit_alloc_cache < 1024 && !bit->pdu_len) { | |
587 | /* | |
588 | * abuse a 64-bit field for a next pointer for the free item | |
589 | */ | |
590 | bit->time = (__u64) (unsigned long) bit_alloc_list; | |
591 | bit_alloc_list = (struct blk_io_trace *) bit; | |
592 | bit_alloc_cache++; | |
593 | } else | |
594 | free(bit); | |
595 | } | |
596 | ||
597 | static inline struct blk_io_trace *bit_alloc(void) | |
598 | { | |
599 | struct blk_io_trace *bit = bit_alloc_list; | |
600 | ||
601 | if (bit) { | |
602 | bit_alloc_list = (struct blk_io_trace *) (unsigned long) \ | |
603 | bit->time; | |
604 | bit_alloc_cache--; | |
605 | return bit; | |
606 | } | |
607 | ||
608 | return malloc(sizeof(*bit)); | |
609 | } | |
610 | ||
611 | static inline void __put_trace_last(struct per_dev_info *pdi, struct trace *t) | |
612 | { | |
613 | struct per_cpu_info *pci = get_cpu_info(pdi, t->bit->cpu); | |
614 | ||
615 | rb_erase(&t->rb_node, &pci->rb_last); | |
616 | pci->rb_last_entries--; | |
617 | ||
618 | bit_free(t->bit); | |
619 | t_free(t); | |
620 | } | |
621 | ||
622 | static void put_trace(struct per_dev_info *pdi, struct trace *t) | |
623 | { | |
624 | rb_erase(&t->rb_node, &rb_sort_root); | |
625 | rb_sort_entries--; | |
626 | ||
627 | trace_rb_insert_last(pdi, t); | |
628 | } | |
629 | ||
89482da6 | 630 | static inline int trace_rb_insert(struct trace *t, struct rb_root *root) |
7997c5b0 | 631 | { |
2a1b3424 | 632 | struct rb_node **p = &root->rb_node; |
7997c5b0 JA |
633 | struct rb_node *parent = NULL; |
634 | struct trace *__t; | |
635 | ||
636 | while (*p) { | |
637 | parent = *p; | |
2a1b3424 | 638 | |
7997c5b0 JA |
639 | __t = rb_entry(parent, struct trace, rb_node); |
640 | ||
89482da6 JA |
641 | if (t->bit->time < __t->bit->time) |
642 | p = &(*p)->rb_left; | |
643 | else if (t->bit->time > __t->bit->time) | |
644 | p = &(*p)->rb_right; | |
645 | else if (t->bit->device < __t->bit->device) | |
e7c9f3ff NS |
646 | p = &(*p)->rb_left; |
647 | else if (t->bit->device > __t->bit->device) | |
648 | p = &(*p)->rb_right; | |
dcf0f7ed JA |
649 | else if (t->bit->sequence < __t->bit->sequence) |
650 | p = &(*p)->rb_left; | |
0b07f23e | 651 | else /* >= sequence */ |
dcf0f7ed | 652 | p = &(*p)->rb_right; |
7997c5b0 JA |
653 | } |
654 | ||
655 | rb_link_node(&t->rb_node, parent, p); | |
2a1b3424 | 656 | rb_insert_color(&t->rb_node, root); |
7997c5b0 JA |
657 | return 0; |
658 | } | |
659 | ||
2a1b3424 | 660 | static inline int trace_rb_insert_sort(struct trace *t) |
e3556946 | 661 | { |
89482da6 | 662 | if (!trace_rb_insert(t, &rb_sort_root)) { |
2a1b3424 JA |
663 | rb_sort_entries++; |
664 | return 0; | |
665 | } | |
666 | ||
667 | return 1; | |
668 | } | |
669 | ||
210824c3 | 670 | static int trace_rb_insert_last(struct per_dev_info *pdi, struct trace *t) |
2a1b3424 | 671 | { |
210824c3 JA |
672 | struct per_cpu_info *pci = get_cpu_info(pdi, t->bit->cpu); |
673 | ||
674 | if (trace_rb_insert(t, &pci->rb_last)) | |
675 | return 1; | |
676 | ||
677 | pci->rb_last_entries++; | |
678 | ||
679 | if (pci->rb_last_entries > rb_batch * pdi->nfiles) { | |
680 | struct rb_node *n = rb_first(&pci->rb_last); | |
681 | ||
682 | t = rb_entry(n, struct trace, rb_node); | |
683 | __put_trace_last(pdi, t); | |
2a1b3424 JA |
684 | } |
685 | ||
210824c3 | 686 | return 0; |
2a1b3424 JA |
687 | } |
688 | ||
689 | static struct trace *trace_rb_find(dev_t device, unsigned long sequence, | |
690 | struct rb_root *root, int order) | |
691 | { | |
692 | struct rb_node *n = root->rb_node; | |
693 | struct rb_node *prev = NULL; | |
e3556946 JA |
694 | struct trace *__t; |
695 | ||
2a1b3424 JA |
696 | while (n) { |
697 | __t = rb_entry(n, struct trace, rb_node); | |
698 | prev = n; | |
e3556946 | 699 | |
0583b6a2 | 700 | if (device < __t->bit->device) |
2a1b3424 | 701 | n = n->rb_left; |
0583b6a2 | 702 | else if (device > __t->bit->device) |
2a1b3424 | 703 | n = n->rb_right; |
0583b6a2 | 704 | else if (sequence < __t->bit->sequence) |
2a1b3424 | 705 | n = n->rb_left; |
e3556946 | 706 | else if (sequence > __t->bit->sequence) |
2a1b3424 | 707 | n = n->rb_right; |
e3556946 JA |
708 | else |
709 | return __t; | |
710 | } | |
711 | ||
2a1b3424 JA |
712 | /* |
713 | * hack - the list may not be sequence ordered because some | |
714 | * events don't have sequence and time matched. so we end up | |
715 | * being a little off in the rb lookup here, because we don't | |
716 | * know the time we are looking for. compensate by browsing | |
717 | * a little ahead from the last entry to find the match | |
718 | */ | |
719 | if (order && prev) { | |
720 | int max = 5; | |
721 | ||
722 | while (((n = rb_next(prev)) != NULL) && max--) { | |
723 | __t = rb_entry(n, struct trace, rb_node); | |
492da111 | 724 | |
2a1b3424 JA |
725 | if (__t->bit->device == device && |
726 | __t->bit->sequence == sequence) | |
727 | return __t; | |
728 | ||
729 | prev = n; | |
730 | } | |
731 | } | |
492da111 | 732 | |
e3556946 JA |
733 | return NULL; |
734 | } | |
735 | ||
2a1b3424 | 736 | static inline struct trace *trace_rb_find_last(struct per_dev_info *pdi, |
210824c3 | 737 | struct per_cpu_info *pci, |
2a1b3424 JA |
738 | unsigned long seq) |
739 | { | |
210824c3 | 740 | return trace_rb_find(pdi->dev, seq, &pci->rb_last, 0); |
2a1b3424 JA |
741 | } |
742 | ||
f7bd1a9b | 743 | static inline int track_rb_insert(struct per_dev_info *pdi,struct io_track *iot) |
7997c5b0 | 744 | { |
f7bd1a9b | 745 | struct rb_node **p = &pdi->rb_track.rb_node; |
7997c5b0 JA |
746 | struct rb_node *parent = NULL; |
747 | struct io_track *__iot; | |
748 | ||
749 | while (*p) { | |
750 | parent = *p; | |
7997c5b0 JA |
751 | __iot = rb_entry(parent, struct io_track, rb_node); |
752 | ||
f7bd1a9b | 753 | if (iot->sector < __iot->sector) |
7997c5b0 JA |
754 | p = &(*p)->rb_left; |
755 | else if (iot->sector > __iot->sector) | |
756 | p = &(*p)->rb_right; | |
757 | else { | |
e7c9f3ff | 758 | fprintf(stderr, |
ab197ca7 AB |
759 | "sector alias (%Lu) on device %d,%d!\n", |
760 | (unsigned long long) iot->sector, | |
f7bd1a9b | 761 | MAJOR(pdi->dev), MINOR(pdi->dev)); |
7997c5b0 JA |
762 | return 1; |
763 | } | |
764 | } | |
765 | ||
766 | rb_link_node(&iot->rb_node, parent, p); | |
f7bd1a9b | 767 | rb_insert_color(&iot->rb_node, &pdi->rb_track); |
7997c5b0 JA |
768 | return 0; |
769 | } | |
770 | ||
f7bd1a9b | 771 | static struct io_track *__find_track(struct per_dev_info *pdi, __u64 sector) |
7997c5b0 | 772 | { |
f7bd1a9b | 773 | struct rb_node *n = pdi->rb_track.rb_node; |
7997c5b0 JA |
774 | struct io_track *__iot; |
775 | ||
2a1b3424 JA |
776 | while (n) { |
777 | __iot = rb_entry(n, struct io_track, rb_node); | |
7997c5b0 | 778 | |
f7bd1a9b | 779 | if (sector < __iot->sector) |
2a1b3424 | 780 | n = n->rb_left; |
7997c5b0 | 781 | else if (sector > __iot->sector) |
2a1b3424 | 782 | n = n->rb_right; |
7997c5b0 JA |
783 | else |
784 | return __iot; | |
785 | } | |
786 | ||
787 | return NULL; | |
788 | } | |
789 | ||
f7bd1a9b JA |
790 | static struct io_track *find_track(struct per_dev_info *pdi, __u32 pid, |
791 | char *comm, __u64 sector) | |
7997c5b0 | 792 | { |
916b5501 | 793 | struct io_track *iot; |
7997c5b0 | 794 | |
f7bd1a9b | 795 | iot = __find_track(pdi, sector); |
7997c5b0 JA |
796 | if (!iot) { |
797 | iot = malloc(sizeof(*iot)); | |
50adc0ba | 798 | iot->pid = pid; |
bf0720af | 799 | memcpy(iot->comm, comm, sizeof(iot->comm)); |
7997c5b0 | 800 | iot->sector = sector; |
f7bd1a9b | 801 | track_rb_insert(pdi, iot); |
7997c5b0 JA |
802 | } |
803 | ||
804 | return iot; | |
805 | } | |
806 | ||
f7bd1a9b JA |
807 | static void log_track_frontmerge(struct per_dev_info *pdi, |
808 | struct blk_io_trace *t) | |
2e3e8ded JA |
809 | { |
810 | struct io_track *iot; | |
811 | ||
812 | if (!track_ios) | |
813 | return; | |
2e3e8ded | 814 | |
ae957cbc | 815 | iot = __find_track(pdi, t->sector + t_sec(t)); |
cb2a1a62 | 816 | if (!iot) { |
57ea8602 JA |
817 | if (verbose) |
818 | fprintf(stderr, "merge not found for (%d,%d): %llu\n", | |
819 | MAJOR(pdi->dev), MINOR(pdi->dev), | |
820 | (unsigned long long) t->sector + t_sec(t)); | |
cb2a1a62 | 821 | return; |
2e3e8ded | 822 | } |
cb2a1a62 | 823 | |
f7bd1a9b | 824 | rb_erase(&iot->rb_node, &pdi->rb_track); |
ae957cbc | 825 | iot->sector -= t_sec(t); |
f7bd1a9b | 826 | track_rb_insert(pdi, iot); |
2e3e8ded JA |
827 | } |
828 | ||
f7bd1a9b | 829 | static void log_track_getrq(struct per_dev_info *pdi, struct blk_io_trace *t) |
2e3e8ded JA |
830 | { |
831 | struct io_track *iot; | |
832 | ||
833 | if (!track_ios) | |
834 | return; | |
835 | ||
f7bd1a9b | 836 | iot = find_track(pdi, t->pid, t->comm, t->sector); |
95c15013 JA |
837 | iot->allocation_time = t->time; |
838 | } | |
839 | ||
95c15013 | 840 | /* |
b6076a9b | 841 | * return time between rq allocation and insertion |
95c15013 | 842 | */ |
f7bd1a9b JA |
843 | static unsigned long long log_track_insert(struct per_dev_info *pdi, |
844 | struct blk_io_trace *t) | |
95c15013 | 845 | { |
50adc0ba | 846 | unsigned long long elapsed; |
95c15013 JA |
847 | struct io_track *iot; |
848 | ||
849 | if (!track_ios) | |
850 | return -1; | |
851 | ||
f7bd1a9b | 852 | iot = find_track(pdi, t->pid, t->comm, t->sector); |
2e3e8ded | 853 | iot->queue_time = t->time; |
acd70d21 JA |
854 | |
855 | if (!iot->allocation_time) | |
856 | return -1; | |
857 | ||
50adc0ba JA |
858 | elapsed = iot->queue_time - iot->allocation_time; |
859 | ||
860 | if (per_process_stats) { | |
bf0720af | 861 | struct per_process_info *ppi = find_process(iot->pid,iot->comm); |
b9d40d6f | 862 | int w = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; |
50adc0ba | 863 | |
b9d40d6f JA |
864 | if (ppi && elapsed > ppi->longest_allocation_wait[w]) |
865 | ppi->longest_allocation_wait[w] = elapsed; | |
50adc0ba JA |
866 | } |
867 | ||
868 | return elapsed; | |
2e3e8ded JA |
869 | } |
870 | ||
871 | /* | |
872 | * return time between queue and issue | |
873 | */ | |
f7bd1a9b JA |
874 | static unsigned long long log_track_issue(struct per_dev_info *pdi, |
875 | struct blk_io_trace *t) | |
2e3e8ded | 876 | { |
50adc0ba | 877 | unsigned long long elapsed; |
2e3e8ded JA |
878 | struct io_track *iot; |
879 | ||
880 | if (!track_ios) | |
881 | return -1; | |
882 | if ((t->action & BLK_TC_ACT(BLK_TC_FS)) == 0) | |
883 | return -1; | |
884 | ||
f7bd1a9b | 885 | iot = __find_track(pdi, t->sector); |
cb2a1a62 | 886 | if (!iot) { |
57ea8602 JA |
887 | if (verbose) |
888 | fprintf(stderr, "issue not found for (%d,%d): %llu\n", | |
889 | MAJOR(pdi->dev), MINOR(pdi->dev), | |
890 | (unsigned long long) t->sector); | |
2e3e8ded | 891 | return -1; |
cb2a1a62 | 892 | } |
2e3e8ded JA |
893 | |
894 | iot->dispatch_time = t->time; | |
50adc0ba JA |
895 | elapsed = iot->dispatch_time - iot->queue_time; |
896 | ||
897 | if (per_process_stats) { | |
bf0720af | 898 | struct per_process_info *ppi = find_process(iot->pid,iot->comm); |
b9d40d6f | 899 | int w = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; |
50adc0ba | 900 | |
b9d40d6f JA |
901 | if (ppi && elapsed > ppi->longest_dispatch_wait[w]) |
902 | ppi->longest_dispatch_wait[w] = elapsed; | |
50adc0ba JA |
903 | } |
904 | ||
905 | return elapsed; | |
2e3e8ded JA |
906 | } |
907 | ||
908 | /* | |
909 | * return time between dispatch and complete | |
910 | */ | |
f7bd1a9b JA |
911 | static unsigned long long log_track_complete(struct per_dev_info *pdi, |
912 | struct blk_io_trace *t) | |
2e3e8ded JA |
913 | { |
914 | unsigned long long elapsed; | |
915 | struct io_track *iot; | |
916 | ||
917 | if (!track_ios) | |
918 | return -1; | |
919 | if ((t->action & BLK_TC_ACT(BLK_TC_FS)) == 0) | |
920 | return -1; | |
921 | ||
f7bd1a9b | 922 | iot = __find_track(pdi, t->sector); |
cb2a1a62 | 923 | if (!iot) { |
57ea8602 JA |
924 | if (verbose) |
925 | fprintf(stderr,"complete not found for (%d,%d): %llu\n", | |
926 | MAJOR(pdi->dev), MINOR(pdi->dev), | |
927 | (unsigned long long) t->sector); | |
2e3e8ded | 928 | return -1; |
cb2a1a62 | 929 | } |
2e3e8ded JA |
930 | |
931 | iot->completion_time = t->time; | |
932 | elapsed = iot->completion_time - iot->dispatch_time; | |
933 | ||
50adc0ba | 934 | if (per_process_stats) { |
bf0720af | 935 | struct per_process_info *ppi = find_process(iot->pid,iot->comm); |
b9d40d6f | 936 | int w = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; |
50adc0ba | 937 | |
b9d40d6f JA |
938 | if (ppi && elapsed > ppi->longest_completion_wait[w]) |
939 | ppi->longest_completion_wait[w] = elapsed; | |
50adc0ba JA |
940 | } |
941 | ||
2e3e8ded JA |
942 | /* |
943 | * kill the trace, we don't need it after completion | |
944 | */ | |
f7bd1a9b | 945 | rb_erase(&iot->rb_node, &pdi->rb_track); |
2e3e8ded JA |
946 | free(iot); |
947 | ||
948 | return elapsed; | |
949 | } | |
950 | ||
951 | ||
152f6476 JA |
952 | static struct io_stats *find_process_io_stats(__u32 pid, char *name) |
953 | { | |
bf0720af | 954 | struct per_process_info *ppi = find_process(pid, name); |
152f6476 JA |
955 | |
956 | if (!ppi) { | |
957 | ppi = malloc(sizeof(*ppi)); | |
958 | memset(ppi, 0, sizeof(*ppi)); | |
bf0720af | 959 | memcpy(ppi->name, name, 16); |
152f6476 JA |
960 | ppi->pid = pid; |
961 | add_process_to_hash(ppi); | |
962 | add_process_to_list(ppi); | |
963 | } | |
964 | ||
965 | return &ppi->io_stats; | |
966 | } | |
967 | ||
e7c9f3ff NS |
968 | static char *get_dev_name(struct per_dev_info *pdi, char *buffer, int size) |
969 | { | |
970 | if (pdi->name) | |
971 | snprintf(buffer, size, "%s", pdi->name); | |
972 | else | |
f7bd1a9b | 973 | snprintf(buffer, size, "%d,%d",MAJOR(pdi->dev),MINOR(pdi->dev)); |
e7c9f3ff NS |
974 | return buffer; |
975 | } | |
976 | ||
e7c9f3ff | 977 | static void check_time(struct per_dev_info *pdi, struct blk_io_trace *bit) |
cfab07eb AB |
978 | { |
979 | unsigned long long this = bit->time; | |
e7c9f3ff | 980 | unsigned long long last = pdi->last_reported_time; |
cfab07eb | 981 | |
e7c9f3ff NS |
982 | pdi->backwards = (this < last) ? 'B' : ' '; |
983 | pdi->last_reported_time = this; | |
cfab07eb AB |
984 | } |
985 | ||
152f6476 JA |
986 | static inline void __account_m(struct io_stats *ios, struct blk_io_trace *t, |
987 | int rw) | |
d0ca268b JA |
988 | { |
989 | if (rw) { | |
152f6476 | 990 | ios->mwrites++; |
ae957cbc | 991 | ios->qwrite_kb += t_kb(t); |
d0ca268b | 992 | } else { |
152f6476 | 993 | ios->mreads++; |
ae957cbc | 994 | ios->qread_kb += t_kb(t); |
152f6476 JA |
995 | } |
996 | } | |
997 | ||
998 | static inline void account_m(struct blk_io_trace *t, struct per_cpu_info *pci, | |
999 | int rw) | |
1000 | { | |
1001 | __account_m(&pci->io_stats, t, rw); | |
1002 | ||
1003 | if (per_process_stats) { | |
1004 | struct io_stats *ios = find_process_io_stats(t->pid, t->comm); | |
1005 | ||
1006 | __account_m(ios, t, rw); | |
d0ca268b JA |
1007 | } |
1008 | } | |
1009 | ||
b6076a9b JA |
1010 | static inline void __account_queue(struct io_stats *ios, struct blk_io_trace *t, |
1011 | int rw) | |
d0ca268b JA |
1012 | { |
1013 | if (rw) { | |
152f6476 | 1014 | ios->qwrites++; |
ae957cbc | 1015 | ios->qwrite_kb += t_kb(t); |
d0ca268b | 1016 | } else { |
152f6476 | 1017 | ios->qreads++; |
ae957cbc | 1018 | ios->qread_kb += t_kb(t); |
152f6476 JA |
1019 | } |
1020 | } | |
1021 | ||
b6076a9b JA |
1022 | static inline void account_queue(struct blk_io_trace *t, |
1023 | struct per_cpu_info *pci, int rw) | |
152f6476 | 1024 | { |
b6076a9b | 1025 | __account_queue(&pci->io_stats, t, rw); |
152f6476 JA |
1026 | |
1027 | if (per_process_stats) { | |
1028 | struct io_stats *ios = find_process_io_stats(t->pid, t->comm); | |
1029 | ||
b6076a9b | 1030 | __account_queue(ios, t, rw); |
d0ca268b JA |
1031 | } |
1032 | } | |
1033 | ||
e21dc4dd | 1034 | static inline void __account_c(struct io_stats *ios, int rw, int bytes) |
d0ca268b JA |
1035 | { |
1036 | if (rw) { | |
152f6476 JA |
1037 | ios->cwrites++; |
1038 | ios->cwrite_kb += bytes >> 10; | |
d0ca268b | 1039 | } else { |
152f6476 JA |
1040 | ios->creads++; |
1041 | ios->cread_kb += bytes >> 10; | |
1042 | } | |
1043 | } | |
1044 | ||
1045 | static inline void account_c(struct blk_io_trace *t, struct per_cpu_info *pci, | |
1046 | int rw, int bytes) | |
1047 | { | |
1048 | __account_c(&pci->io_stats, rw, bytes); | |
1049 | ||
1050 | if (per_process_stats) { | |
1051 | struct io_stats *ios = find_process_io_stats(t->pid, t->comm); | |
1052 | ||
1053 | __account_c(ios, rw, bytes); | |
d0ca268b JA |
1054 | } |
1055 | } | |
1056 | ||
b6076a9b JA |
1057 | static inline void __account_issue(struct io_stats *ios, int rw, |
1058 | unsigned int bytes) | |
afd2d7ad | 1059 | { |
1060 | if (rw) { | |
152f6476 JA |
1061 | ios->iwrites++; |
1062 | ios->iwrite_kb += bytes >> 10; | |
afd2d7ad | 1063 | } else { |
152f6476 JA |
1064 | ios->ireads++; |
1065 | ios->iread_kb += bytes >> 10; | |
afd2d7ad | 1066 | } |
1067 | } | |
1068 | ||
b6076a9b JA |
1069 | static inline void account_issue(struct blk_io_trace *t, |
1070 | struct per_cpu_info *pci, int rw) | |
d0ca268b | 1071 | { |
b6076a9b | 1072 | __account_issue(&pci->io_stats, rw, t->bytes); |
152f6476 JA |
1073 | |
1074 | if (per_process_stats) { | |
1075 | struct io_stats *ios = find_process_io_stats(t->pid, t->comm); | |
d5396421 | 1076 | |
b6076a9b | 1077 | __account_issue(ios, rw, t->bytes); |
152f6476 JA |
1078 | } |
1079 | } | |
1080 | ||
06639b27 JA |
1081 | static inline void __account_unplug(struct io_stats *ios, int timer) |
1082 | { | |
1083 | if (timer) | |
1084 | ios->timer_unplugs++; | |
1085 | else | |
1086 | ios->io_unplugs++; | |
1087 | } | |
1088 | ||
1089 | static inline void account_unplug(struct blk_io_trace *t, | |
1090 | struct per_cpu_info *pci, int timer) | |
1091 | { | |
1092 | __account_unplug(&pci->io_stats, timer); | |
1093 | ||
1094 | if (per_process_stats) { | |
1095 | struct io_stats *ios = find_process_io_stats(t->pid, t->comm); | |
1096 | ||
1097 | __account_unplug(ios, timer); | |
1098 | } | |
1099 | } | |
1100 | ||
4054070a JA |
1101 | static inline void __account_requeue(struct io_stats *ios, |
1102 | struct blk_io_trace *t, int rw) | |
1103 | { | |
1104 | if (rw) { | |
1105 | ios->wrqueue++; | |
1106 | ios->iwrite_kb -= t_kb(t); | |
1107 | } else { | |
1108 | ios->rrqueue++; | |
1109 | ios->iread_kb -= t_kb(t); | |
1110 | } | |
1111 | } | |
1112 | ||
1113 | static inline void account_requeue(struct blk_io_trace *t, | |
1114 | struct per_cpu_info *pci, int rw) | |
1115 | { | |
1116 | __account_requeue(&pci->io_stats, t, rw); | |
1117 | ||
1118 | if (per_process_stats) { | |
1119 | struct io_stats *ios = find_process_io_stats(t->pid, t->comm); | |
1120 | ||
1121 | __account_requeue(ios, t, rw); | |
1122 | } | |
1123 | } | |
1124 | ||
f7bd1a9b JA |
1125 | static void log_complete(struct per_dev_info *pdi, struct per_cpu_info *pci, |
1126 | struct blk_io_trace *t, char *act) | |
ab197ca7 | 1127 | { |
f7bd1a9b | 1128 | process_fmt(act, pci, t, log_track_complete(pdi, t), 0, NULL); |
ab197ca7 AB |
1129 | } |
1130 | ||
f7bd1a9b JA |
1131 | static void log_insert(struct per_dev_info *pdi, struct per_cpu_info *pci, |
1132 | struct blk_io_trace *t, char *act) | |
b6076a9b | 1133 | { |
f7bd1a9b | 1134 | process_fmt(act, pci, t, log_track_insert(pdi, t), 0, NULL); |
b6076a9b JA |
1135 | } |
1136 | ||
ab197ca7 AB |
1137 | static void log_queue(struct per_cpu_info *pci, struct blk_io_trace *t, |
1138 | char *act) | |
1139 | { | |
b6076a9b | 1140 | process_fmt(act, pci, t, -1, 0, NULL); |
ab197ca7 | 1141 | } |
2e3e8ded | 1142 | |
f7bd1a9b JA |
1143 | static void log_issue(struct per_dev_info *pdi, struct per_cpu_info *pci, |
1144 | struct blk_io_trace *t, char *act) | |
ab197ca7 | 1145 | { |
f7bd1a9b | 1146 | process_fmt(act, pci, t, log_track_issue(pdi, t), 0, NULL); |
d0ca268b JA |
1147 | } |
1148 | ||
f7bd1a9b JA |
1149 | static void log_merge(struct per_dev_info *pdi, struct per_cpu_info *pci, |
1150 | struct blk_io_trace *t, char *act) | |
d0ca268b | 1151 | { |
a01516de | 1152 | if (act[0] == 'F') |
f7bd1a9b | 1153 | log_track_frontmerge(pdi, t); |
2e3e8ded | 1154 | |
ab197ca7 | 1155 | process_fmt(act, pci, t, -1ULL, 0, NULL); |
d0ca268b JA |
1156 | } |
1157 | ||
dfe34da1 | 1158 | static void log_action(struct per_cpu_info *pci, struct blk_io_trace *t, |
3639a11e | 1159 | char *act) |
dfe34da1 | 1160 | { |
ab197ca7 | 1161 | process_fmt(act, pci, t, -1ULL, 0, NULL); |
dfe34da1 JA |
1162 | } |
1163 | ||
d5396421 | 1164 | static void log_generic(struct per_cpu_info *pci, struct blk_io_trace *t, |
3639a11e | 1165 | char *act) |
d0ca268b | 1166 | { |
ab197ca7 | 1167 | process_fmt(act, pci, t, -1ULL, 0, NULL); |
d0ca268b JA |
1168 | } |
1169 | ||
ab197ca7 | 1170 | static void log_unplug(struct per_cpu_info *pci, struct blk_io_trace *t, |
3639a11e | 1171 | char *act) |
67e14fdc | 1172 | { |
ab197ca7 | 1173 | process_fmt(act, pci, t, -1ULL, 0, NULL); |
67e14fdc JA |
1174 | } |
1175 | ||
93f1c611 JA |
1176 | static void log_split(struct per_cpu_info *pci, struct blk_io_trace *t, |
1177 | char *act) | |
1178 | { | |
1179 | process_fmt(act, pci, t, -1ULL, 0, NULL); | |
1180 | } | |
1181 | ||
ab197ca7 | 1182 | static void log_pc(struct per_cpu_info *pci, struct blk_io_trace *t, char *act) |
d0ca268b | 1183 | { |
ab197ca7 | 1184 | unsigned char *buf = (unsigned char *) t + sizeof(*t); |
d0ca268b | 1185 | |
ab197ca7 | 1186 | process_fmt(act, pci, t, -1ULL, t->pdu_len, buf); |
d0ca268b JA |
1187 | } |
1188 | ||
ff3a732c | 1189 | static void dump_trace_pc(struct blk_io_trace *t, struct per_cpu_info *pci) |
d0ca268b | 1190 | { |
56f2af81 JA |
1191 | int act = t->action & 0xffff; |
1192 | ||
1193 | switch (act) { | |
d0ca268b | 1194 | case __BLK_TA_QUEUE: |
3639a11e | 1195 | log_generic(pci, t, "Q"); |
d0ca268b JA |
1196 | break; |
1197 | case __BLK_TA_GETRQ: | |
3639a11e | 1198 | log_generic(pci, t, "G"); |
d0ca268b JA |
1199 | break; |
1200 | case __BLK_TA_SLEEPRQ: | |
3639a11e | 1201 | log_generic(pci, t, "S"); |
d0ca268b JA |
1202 | break; |
1203 | case __BLK_TA_REQUEUE: | |
3639a11e | 1204 | log_generic(pci, t, "R"); |
d0ca268b JA |
1205 | break; |
1206 | case __BLK_TA_ISSUE: | |
ab197ca7 | 1207 | log_pc(pci, t, "D"); |
d0ca268b JA |
1208 | break; |
1209 | case __BLK_TA_COMPLETE: | |
3639a11e | 1210 | log_pc(pci, t, "C"); |
d0ca268b | 1211 | break; |
56f2af81 JA |
1212 | case __BLK_TA_INSERT: |
1213 | log_pc(pci, t, "I"); | |
1214 | break; | |
d0ca268b | 1215 | default: |
56f2af81 | 1216 | fprintf(stderr, "Bad pc action %x\n", act); |
87b72777 | 1217 | break; |
d0ca268b | 1218 | } |
d0ca268b JA |
1219 | } |
1220 | ||
f7bd1a9b JA |
1221 | static void dump_trace_fs(struct blk_io_trace *t, struct per_dev_info *pdi, |
1222 | struct per_cpu_info *pci) | |
d0ca268b | 1223 | { |
649c7b66 | 1224 | int w = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; |
7997c5b0 | 1225 | int act = t->action & 0xffff; |
d0ca268b | 1226 | |
7997c5b0 | 1227 | switch (act) { |
d0ca268b | 1228 | case __BLK_TA_QUEUE: |
b6076a9b | 1229 | account_queue(t, pci, w); |
3639a11e | 1230 | log_queue(pci, t, "Q"); |
d0ca268b | 1231 | break; |
b6076a9b | 1232 | case __BLK_TA_INSERT: |
f7bd1a9b | 1233 | log_insert(pdi, pci, t, "I"); |
b6076a9b | 1234 | break; |
d0ca268b | 1235 | case __BLK_TA_BACKMERGE: |
152f6476 | 1236 | account_m(t, pci, w); |
f7bd1a9b | 1237 | log_merge(pdi, pci, t, "M"); |
d0ca268b JA |
1238 | break; |
1239 | case __BLK_TA_FRONTMERGE: | |
152f6476 | 1240 | account_m(t, pci, w); |
f7bd1a9b | 1241 | log_merge(pdi, pci, t, "F"); |
d0ca268b JA |
1242 | break; |
1243 | case __BLK_TA_GETRQ: | |
f7bd1a9b | 1244 | log_track_getrq(pdi, t); |
3639a11e | 1245 | log_generic(pci, t, "G"); |
d0ca268b JA |
1246 | break; |
1247 | case __BLK_TA_SLEEPRQ: | |
3639a11e | 1248 | log_generic(pci, t, "S"); |
d0ca268b JA |
1249 | break; |
1250 | case __BLK_TA_REQUEUE: | |
649c7b66 | 1251 | pdi->cur_depth[w]--; |
4054070a | 1252 | account_requeue(t, pci, w); |
3639a11e | 1253 | log_queue(pci, t, "R"); |
d0ca268b JA |
1254 | break; |
1255 | case __BLK_TA_ISSUE: | |
b6076a9b | 1256 | account_issue(t, pci, w); |
649c7b66 JA |
1257 | pdi->cur_depth[w]++; |
1258 | if (pdi->cur_depth[w] > pdi->max_depth[w]) | |
1259 | pdi->max_depth[w] = pdi->cur_depth[w]; | |
f7bd1a9b | 1260 | log_issue(pdi, pci, t, "D"); |
d0ca268b JA |
1261 | break; |
1262 | case __BLK_TA_COMPLETE: | |
649c7b66 | 1263 | pdi->cur_depth[w]--; |
152f6476 | 1264 | account_c(t, pci, w, t->bytes); |
f7bd1a9b | 1265 | log_complete(pdi, pci, t, "C"); |
d0ca268b | 1266 | break; |
88b1a526 | 1267 | case __BLK_TA_PLUG: |
3639a11e | 1268 | log_action(pci, t, "P"); |
88b1a526 | 1269 | break; |
3639a11e | 1270 | case __BLK_TA_UNPLUG_IO: |
06639b27 | 1271 | account_unplug(t, pci, 0); |
3639a11e JA |
1272 | log_unplug(pci, t, "U"); |
1273 | break; | |
1274 | case __BLK_TA_UNPLUG_TIMER: | |
06639b27 | 1275 | account_unplug(t, pci, 1); |
3639a11e | 1276 | log_unplug(pci, t, "UT"); |
88b1a526 | 1277 | break; |
93f1c611 JA |
1278 | case __BLK_TA_SPLIT: |
1279 | log_split(pci, t, "X"); | |
1280 | break; | |
1281 | case __BLK_TA_BOUNCE: | |
1282 | log_generic(pci, t, "B"); | |
1283 | break; | |
a8f30e64 JA |
1284 | case __BLK_TA_REMAP: |
1285 | log_generic(pci, t, "A"); | |
1286 | break; | |
d0ca268b JA |
1287 | default: |
1288 | fprintf(stderr, "Bad fs action %x\n", t->action); | |
1f79c4a0 | 1289 | break; |
d0ca268b | 1290 | } |
d0ca268b JA |
1291 | } |
1292 | ||
ff3a732c JA |
1293 | static void dump_trace(struct blk_io_trace *t, struct per_cpu_info *pci, |
1294 | struct per_dev_info *pdi) | |
d0ca268b JA |
1295 | { |
1296 | if (t->action & BLK_TC_ACT(BLK_TC_PC)) | |
ff3a732c | 1297 | dump_trace_pc(t, pci); |
d0ca268b | 1298 | else |
f7bd1a9b | 1299 | dump_trace_fs(t, pdi, pci); |
87b72777 | 1300 | |
20ed6177 JA |
1301 | if (!pdi->events) |
1302 | pdi->first_reported_time = t->time; | |
1303 | ||
e7c9f3ff | 1304 | pdi->events++; |
d0ca268b JA |
1305 | } |
1306 | ||
4c523165 JA |
1307 | /* |
1308 | * print in a proper way, not too small and not too big. if more than | |
1309 | * 1000,000K, turn into M and so on | |
1310 | */ | |
1311 | static char *size_cnv(char *dst, unsigned long long num, int in_kb) | |
1312 | { | |
da19e768 | 1313 | char suff[] = { '\0', 'K', 'M', 'G', 'P' }; |
0dc3602c | 1314 | unsigned int i = 0; |
4c523165 JA |
1315 | |
1316 | if (in_kb) | |
1317 | i++; | |
1318 | ||
0dc3602c | 1319 | while (num > 1000 * 1000ULL && (i < sizeof(suff) - 1)) { |
4c523165 JA |
1320 | i++; |
1321 | num /= 1000; | |
1322 | } | |
1323 | ||
1324 | sprintf(dst, "%'8Lu%c", num, suff[i]); | |
1325 | return dst; | |
1326 | } | |
1327 | ||
649c7b66 JA |
1328 | static void dump_io_stats(struct per_dev_info *pdi, struct io_stats *ios, |
1329 | char *msg) | |
5c017e4b | 1330 | { |
4c523165 JA |
1331 | static char x[256], y[256]; |
1332 | ||
152f6476 JA |
1333 | fprintf(ofp, "%s\n", msg); |
1334 | ||
4c523165 JA |
1335 | fprintf(ofp, " Reads Queued: %s, %siB\t", size_cnv(x, ios->qreads, 0), size_cnv(y, ios->qread_kb, 1)); |
1336 | fprintf(ofp, " Writes Queued: %s, %siB\n", size_cnv(x, ios->qwrites, 0), size_cnv(y, ios->qwrite_kb, 1)); | |
0a6b8fc4 | 1337 | |
4c523165 JA |
1338 | fprintf(ofp, " Read Dispatches: %s, %siB\t", size_cnv(x, ios->ireads, 0), size_cnv(y, ios->iread_kb, 1)); |
1339 | fprintf(ofp, " Write Dispatches: %s, %siB\n", size_cnv(x, ios->iwrites, 0), size_cnv(y, ios->iwrite_kb, 1)); | |
4054070a JA |
1340 | fprintf(ofp, " Reads Requeued: %s\t\t", size_cnv(x, ios->rrqueue, 0)); |
1341 | fprintf(ofp, " Writes Requeued: %s\n", size_cnv(x, ios->wrqueue, 0)); | |
4c523165 JA |
1342 | fprintf(ofp, " Reads Completed: %s, %siB\t", size_cnv(x, ios->creads, 0), size_cnv(y, ios->cread_kb, 1)); |
1343 | fprintf(ofp, " Writes Completed: %s, %siB\n", size_cnv(x, ios->cwrites, 0), size_cnv(y, ios->cwrite_kb, 1)); | |
152f6476 | 1344 | fprintf(ofp, " Read Merges: %'8lu%8c\t", ios->mreads, ' '); |
152f6476 | 1345 | fprintf(ofp, " Write Merges: %'8lu\n", ios->mwrites); |
649c7b66 JA |
1346 | if (pdi) { |
1347 | fprintf(ofp, " Read depth: %'8u%8c\t", pdi->max_depth[0], ' '); | |
1348 | fprintf(ofp, " Write depth: %'8u\n", pdi->max_depth[1]); | |
1349 | } | |
06639b27 JA |
1350 | fprintf(ofp, " IO unplugs: %'8lu%8c\t", ios->io_unplugs, ' '); |
1351 | fprintf(ofp, " Timer unplugs: %'8lu\n", ios->timer_unplugs); | |
5c017e4b JA |
1352 | } |
1353 | ||
50adc0ba JA |
1354 | static void dump_wait_stats(struct per_process_info *ppi) |
1355 | { | |
b9d40d6f JA |
1356 | unsigned long rawait = ppi->longest_allocation_wait[0] / 1000; |
1357 | unsigned long rdwait = ppi->longest_dispatch_wait[0] / 1000; | |
1358 | unsigned long rcwait = ppi->longest_completion_wait[0] / 1000; | |
1359 | unsigned long wawait = ppi->longest_allocation_wait[1] / 1000; | |
1360 | unsigned long wdwait = ppi->longest_dispatch_wait[1] / 1000; | |
1361 | unsigned long wcwait = ppi->longest_completion_wait[1] / 1000; | |
1362 | ||
1363 | fprintf(ofp, " Allocation wait: %'8lu%8c\t", rawait, ' '); | |
1364 | fprintf(ofp, " Allocation wait: %'8lu\n", wawait); | |
1365 | fprintf(ofp, " Dispatch wait: %'8lu%8c\t", rdwait, ' '); | |
1366 | fprintf(ofp, " Dispatch wait: %'8lu\n", wdwait); | |
1367 | fprintf(ofp, " Completion wait: %'8lu%8c\t", rcwait, ' '); | |
1368 | fprintf(ofp, " Completion wait: %'8lu\n", wcwait); | |
50adc0ba JA |
1369 | } |
1370 | ||
886ecf0e JA |
1371 | static int ppi_name_compare(const void *p1, const void *p2) |
1372 | { | |
1373 | struct per_process_info *ppi1 = *((struct per_process_info **) p1); | |
1374 | struct per_process_info *ppi2 = *((struct per_process_info **) p2); | |
1375 | int res; | |
1376 | ||
1377 | res = strverscmp(ppi1->name, ppi2->name); | |
1378 | if (!res) | |
06e6f286 | 1379 | res = ppi1->pid > ppi2->pid; |
886ecf0e JA |
1380 | |
1381 | return res; | |
1382 | } | |
1383 | ||
1384 | static void sort_process_list(void) | |
1385 | { | |
1386 | struct per_process_info **ppis; | |
1387 | struct per_process_info *ppi; | |
1388 | int i = 0; | |
1389 | ||
1390 | ppis = malloc(ppi_list_entries * sizeof(struct per_process_info *)); | |
1391 | ||
1392 | ppi = ppi_list; | |
1393 | while (ppi) { | |
06e6f286 | 1394 | ppis[i++] = ppi; |
886ecf0e JA |
1395 | ppi = ppi->list_next; |
1396 | } | |
1397 | ||
06e6f286 | 1398 | qsort(ppis, ppi_list_entries, sizeof(ppi), ppi_name_compare); |
886ecf0e JA |
1399 | |
1400 | i = ppi_list_entries - 1; | |
1401 | ppi_list = NULL; | |
1402 | while (i >= 0) { | |
1403 | ppi = ppis[i]; | |
1404 | ||
1405 | ppi->list_next = ppi_list; | |
1406 | ppi_list = ppi; | |
1407 | i--; | |
1408 | } | |
50c38702 JA |
1409 | |
1410 | free(ppis); | |
886ecf0e JA |
1411 | } |
1412 | ||
152f6476 JA |
1413 | static void show_process_stats(void) |
1414 | { | |
1415 | struct per_process_info *ppi; | |
1416 | ||
886ecf0e JA |
1417 | sort_process_list(); |
1418 | ||
152f6476 JA |
1419 | ppi = ppi_list; |
1420 | while (ppi) { | |
ce8b6b4f JA |
1421 | char name[64]; |
1422 | ||
715d8021 | 1423 | if (ppi->more_than_one) |
bf0720af | 1424 | sprintf(name, "%s (%u, ...)", ppi->name, ppi->pid); |
715d8021 JA |
1425 | else |
1426 | sprintf(name, "%s (%u)", ppi->name, ppi->pid); | |
bf0720af | 1427 | |
649c7b66 | 1428 | dump_io_stats(NULL, &ppi->io_stats, name); |
50adc0ba | 1429 | dump_wait_stats(ppi); |
152f6476 JA |
1430 | ppi = ppi->list_next; |
1431 | } | |
1432 | ||
1433 | fprintf(ofp, "\n"); | |
1434 | } | |
1435 | ||
e7c9f3ff | 1436 | static void show_device_and_cpu_stats(void) |
d0ca268b | 1437 | { |
e7c9f3ff NS |
1438 | struct per_dev_info *pdi; |
1439 | struct per_cpu_info *pci; | |
1440 | struct io_stats total, *ios; | |
20ed6177 | 1441 | unsigned long long rrate, wrate, msec; |
e7c9f3ff NS |
1442 | int i, j, pci_events; |
1443 | char line[3 + 8/*cpu*/ + 2 + 32/*dev*/ + 3]; | |
1444 | char name[32]; | |
1445 | ||
1446 | for (pdi = devices, i = 0; i < ndevices; i++, pdi++) { | |
1447 | ||
1448 | memset(&total, 0, sizeof(total)); | |
1449 | pci_events = 0; | |
1450 | ||
1451 | if (i > 0) | |
1452 | fprintf(ofp, "\n"); | |
1453 | ||
1454 | for (pci = pdi->cpus, j = 0; j < pdi->ncpus; j++, pci++) { | |
1455 | if (!pci->nelems) | |
1456 | continue; | |
1457 | ||
1458 | ios = &pci->io_stats; | |
1459 | total.qreads += ios->qreads; | |
1460 | total.qwrites += ios->qwrites; | |
1461 | total.creads += ios->creads; | |
1462 | total.cwrites += ios->cwrites; | |
1463 | total.mreads += ios->mreads; | |
1464 | total.mwrites += ios->mwrites; | |
1465 | total.ireads += ios->ireads; | |
1466 | total.iwrites += ios->iwrites; | |
4054070a JA |
1467 | total.rrqueue += ios->rrqueue; |
1468 | total.wrqueue += ios->wrqueue; | |
e7c9f3ff NS |
1469 | total.qread_kb += ios->qread_kb; |
1470 | total.qwrite_kb += ios->qwrite_kb; | |
1471 | total.cread_kb += ios->cread_kb; | |
1472 | total.cwrite_kb += ios->cwrite_kb; | |
1473 | total.iread_kb += ios->iread_kb; | |
1474 | total.iwrite_kb += ios->iwrite_kb; | |
06639b27 JA |
1475 | total.timer_unplugs += ios->timer_unplugs; |
1476 | total.io_unplugs += ios->io_unplugs; | |
e7c9f3ff NS |
1477 | |
1478 | snprintf(line, sizeof(line) - 1, "CPU%d (%s):", | |
1479 | j, get_dev_name(pdi, name, sizeof(name))); | |
649c7b66 | 1480 | dump_io_stats(pdi, ios, line); |
e7c9f3ff NS |
1481 | pci_events++; |
1482 | } | |
5c017e4b | 1483 | |
e7c9f3ff NS |
1484 | if (pci_events > 1) { |
1485 | fprintf(ofp, "\n"); | |
1486 | snprintf(line, sizeof(line) - 1, "Total (%s):", | |
1487 | get_dev_name(pdi, name, sizeof(name))); | |
649c7b66 | 1488 | dump_io_stats(NULL, &total, line); |
e7c9f3ff | 1489 | } |
d0ca268b | 1490 | |
20ed6177 | 1491 | wrate = rrate = 0; |
20ed6177 JA |
1492 | msec = (pdi->last_reported_time - pdi->first_reported_time) / 1000000; |
1493 | if (msec) { | |
1494 | rrate = 1000 * total.cread_kb / msec; | |
1495 | wrate = 1000 * total.cwrite_kb / msec; | |
1496 | } | |
1497 | ||
dce0f678 AB |
1498 | fprintf(ofp, "\nThroughput (R/W): %'LuKiB/s / %'LuKiB/s\n", |
1499 | rrate, wrate); | |
1500 | fprintf(ofp, "Events (%s): %'Lu entries\n", | |
1501 | get_dev_name(pdi, line, sizeof(line)), pdi->events); | |
492da111 AB |
1502 | |
1503 | collect_pdi_skips(pdi); | |
1504 | fprintf(ofp, "Skips: %'lu forward (%'llu - %5.1lf%%)\n", | |
dce0f678 AB |
1505 | pdi->skips,pdi->seq_skips, |
1506 | 100.0 * ((double)pdi->seq_skips / | |
dce0f678 | 1507 | (double)(pdi->events + pdi->seq_skips))); |
e7c9f3ff | 1508 | } |
d0ca268b JA |
1509 | } |
1510 | ||
4f0ae44f JA |
1511 | static void find_genesis(void) |
1512 | { | |
1513 | struct trace *t = trace_list; | |
1514 | ||
1515 | genesis_time = -1ULL; | |
1516 | while (t != NULL) { | |
1517 | if (t->bit->time < genesis_time) | |
1518 | genesis_time = t->bit->time; | |
1519 | ||
1520 | t = t->next; | |
1521 | } | |
1522 | } | |
1523 | ||
7f4d89e6 | 1524 | static inline int check_stopwatch(struct blk_io_trace *bit) |
4f0ae44f | 1525 | { |
7f4d89e6 JA |
1526 | if (bit->time < stopwatch_end && |
1527 | bit->time >= stopwatch_start) | |
4f0ae44f JA |
1528 | return 0; |
1529 | ||
1530 | return 1; | |
1531 | } | |
1532 | ||
53c68c88 JA |
1533 | /* |
1534 | * return youngest entry read | |
1535 | */ | |
1536 | static int sort_entries(unsigned long long *youngest) | |
4f0ae44f | 1537 | { |
210824c3 JA |
1538 | struct per_dev_info *pdi = NULL; |
1539 | struct per_cpu_info *pci = NULL; | |
4f0ae44f | 1540 | struct trace *t; |
4f0ae44f JA |
1541 | |
1542 | if (!genesis_time) | |
1543 | find_genesis(); | |
1544 | ||
d6222db8 | 1545 | *youngest = 0; |
4f0ae44f JA |
1546 | while ((t = trace_list) != NULL) { |
1547 | struct blk_io_trace *bit = t->bit; | |
1548 | ||
1549 | trace_list = t->next; | |
1550 | ||
7f4d89e6 | 1551 | bit->time -= genesis_time; |
4f0ae44f | 1552 | |
d6222db8 JA |
1553 | if (bit->time < *youngest || !*youngest) |
1554 | *youngest = bit->time; | |
1555 | ||
210824c3 JA |
1556 | if (!pdi || pdi->dev != bit->device) { |
1557 | pdi = get_dev_info(bit->device); | |
1558 | pci = NULL; | |
1559 | } | |
1560 | ||
1561 | if (!pci || pci->cpu != bit->cpu) | |
1562 | pci = get_cpu_info(pdi, bit->cpu); | |
1563 | ||
1564 | if (bit->sequence < pci->smallest_seq_read) | |
1565 | pci->smallest_seq_read = bit->sequence; | |
774a1a10 | 1566 | |
7f4d89e6 | 1567 | if (check_stopwatch(bit)) { |
4f0ae44f JA |
1568 | bit_free(bit); |
1569 | t_free(t); | |
1570 | continue; | |
1571 | } | |
1572 | ||
2a1b3424 | 1573 | if (trace_rb_insert_sort(t)) |
53c68c88 | 1574 | return -1; |
4f0ae44f JA |
1575 | } |
1576 | ||
53c68c88 | 1577 | return 0; |
4f0ae44f JA |
1578 | } |
1579 | ||
824c2b39 JA |
1580 | /* |
1581 | * to continue, we must have traces from all online cpus in the tree | |
1582 | */ | |
1583 | static int check_cpu_map(struct per_dev_info *pdi) | |
1584 | { | |
1585 | unsigned long *cpu_map; | |
1586 | struct rb_node *n; | |
1587 | struct trace *__t; | |
1588 | unsigned int i; | |
1589 | int ret, cpu; | |
1590 | ||
1591 | /* | |
1592 | * create a map of the cpus we have traces for | |
1593 | */ | |
1594 | cpu_map = malloc(pdi->cpu_map_max / sizeof(long)); | |
1595 | n = rb_first(&rb_sort_root); | |
1596 | while (n) { | |
1597 | __t = rb_entry(n, struct trace, rb_node); | |
1598 | cpu = __t->bit->cpu; | |
1599 | ||
1600 | cpu_map[CPU_IDX(cpu)] |= (1UL << CPU_BIT(cpu)); | |
1601 | n = rb_next(n); | |
1602 | } | |
1603 | ||
1604 | /* | |
b1c8e614 JA |
1605 | * we can't continue if pdi->cpu_map has entries set that we don't |
1606 | * have in the sort rbtree. the opposite is not a problem, though | |
824c2b39 JA |
1607 | */ |
1608 | ret = 0; | |
1609 | for (i = 0; i < pdi->cpu_map_max / CPUS_PER_LONG; i++) { | |
1610 | if (pdi->cpu_map[i] & ~(cpu_map[i])) { | |
1611 | ret = 1; | |
1612 | break; | |
1613 | } | |
1614 | } | |
1615 | ||
1616 | free(cpu_map); | |
1617 | return ret; | |
1618 | } | |
1619 | ||
a141a7cd | 1620 | static int check_sequence(struct per_dev_info *pdi, struct trace *t, int force) |
2a1b3424 | 1621 | { |
1ca323a5 | 1622 | struct blk_io_trace *bit = t->bit; |
210824c3 JA |
1623 | unsigned long expected_sequence; |
1624 | struct per_cpu_info *pci; | |
1ca323a5 | 1625 | struct trace *__t; |
492da111 | 1626 | |
210824c3 JA |
1627 | pci = get_cpu_info(pdi, bit->cpu); |
1628 | expected_sequence = pci->last_sequence + 1; | |
1629 | ||
774a1a10 | 1630 | if (!expected_sequence) { |
774a1a10 JA |
1631 | /* |
1632 | * 1 should be the first entry, just allow it | |
1633 | */ | |
1634 | if (bit->sequence == 1) | |
1635 | return 0; | |
210824c3 | 1636 | if (bit->sequence == pci->smallest_seq_read) |
79ee9704 | 1637 | return 0; |
774a1a10 | 1638 | |
824c2b39 | 1639 | return check_cpu_map(pdi); |
774a1a10 | 1640 | } |
2a1b3424 JA |
1641 | |
1642 | if (bit->sequence == expected_sequence) | |
1643 | return 0; | |
1644 | ||
2a1b3424 | 1645 | /* |
1c7c54aa JA |
1646 | * we may not have seen that sequence yet. if we are not doing |
1647 | * the final run, break and wait for more entries. | |
1c24add6 | 1648 | */ |
210824c3 JA |
1649 | if (expected_sequence < pci->smallest_seq_read) { |
1650 | __t = trace_rb_find_last(pdi, pci, expected_sequence); | |
1ca323a5 | 1651 | if (!__t) |
1c7c54aa | 1652 | goto skip; |
2a1b3424 | 1653 | |
1ca323a5 | 1654 | __put_trace_last(pdi, __t); |
2a1b3424 | 1655 | return 0; |
a141a7cd JA |
1656 | } else if (!force) { |
1657 | return 1; | |
0b07f23e | 1658 | } else { |
1c7c54aa | 1659 | skip: |
66930177 | 1660 | if (check_current_skips(pci, bit->sequence)) |
492da111 AB |
1661 | return 0; |
1662 | ||
965eca2d | 1663 | if (expected_sequence < bit->sequence) |
66930177 | 1664 | insert_skip(pci, expected_sequence, bit->sequence - 1); |
1c7c54aa JA |
1665 | return 0; |
1666 | } | |
2a1b3424 JA |
1667 | } |
1668 | ||
a649216c | 1669 | static void show_entries_rb(int force) |
8fc0abbc | 1670 | { |
1f7afa72 JA |
1671 | struct per_dev_info *pdi = NULL; |
1672 | struct per_cpu_info *pci = NULL; | |
8fc0abbc | 1673 | struct blk_io_trace *bit; |
3aabcd89 | 1674 | struct rb_node *n; |
8fc0abbc | 1675 | struct trace *t; |
1f7afa72 | 1676 | |
7d747d22 | 1677 | while ((n = rb_first(&rb_sort_root)) != NULL) { |
dd90748f | 1678 | if (is_done() && !force && !pipeline) |
1f7afa72 | 1679 | break; |
8fc0abbc JA |
1680 | |
1681 | t = rb_entry(n, struct trace, rb_node); | |
1682 | bit = t->bit; | |
1683 | ||
210824c3 | 1684 | if (!pdi || pdi->dev != bit->device) { |
287fa3d6 | 1685 | pdi = get_dev_info(bit->device); |
210824c3 JA |
1686 | pci = NULL; |
1687 | } | |
1f7afa72 | 1688 | |
e7c9f3ff NS |
1689 | if (!pdi) { |
1690 | fprintf(stderr, "Unknown device ID? (%d,%d)\n", | |
1691 | MAJOR(bit->device), MINOR(bit->device)); | |
1692 | break; | |
1693 | } | |
1f7afa72 | 1694 | |
a141a7cd JA |
1695 | if (check_sequence(pdi, t, force)) |
1696 | break; | |
cb2a1a62 | 1697 | |
a141a7cd JA |
1698 | if (!force && bit->time > last_allowed_time) |
1699 | break; | |
8fc0abbc | 1700 | |
4f0ae44f | 1701 | check_time(pdi, bit); |
8fc0abbc | 1702 | |
4f0ae44f JA |
1703 | if (!pci || pci->cpu != bit->cpu) |
1704 | pci = get_cpu_info(pdi, bit->cpu); | |
287fa3d6 | 1705 | |
210824c3 JA |
1706 | pci->last_sequence = bit->sequence; |
1707 | ||
cbc927b6 JA |
1708 | pci->nelems++; |
1709 | ||
66930177 | 1710 | if (bit->action & (act_mask << BLK_TC_SHIFT)) |
98f8386b | 1711 | dump_trace(bit, pci, pdi); |
87b72777 | 1712 | |
2a1b3424 | 1713 | put_trace(pdi, t); |
cb2a1a62 | 1714 | } |
8fc0abbc JA |
1715 | } |
1716 | ||
c0e0dbc2 | 1717 | static int read_data(int fd, void *buffer, int bytes, int block, int *fdblock) |
1f79c4a0 JA |
1718 | { |
1719 | int ret, bytes_left, fl; | |
1720 | void *p; | |
1721 | ||
c0e0dbc2 JA |
1722 | if (block != *fdblock) { |
1723 | fl = fcntl(fd, F_GETFL); | |
1f79c4a0 | 1724 | |
c0e0dbc2 JA |
1725 | if (!block) { |
1726 | *fdblock = 0; | |
1727 | fcntl(fd, F_SETFL, fl | O_NONBLOCK); | |
1728 | } else { | |
1729 | *fdblock = 1; | |
1730 | fcntl(fd, F_SETFL, fl & ~O_NONBLOCK); | |
1731 | } | |
1732 | } | |
1f79c4a0 JA |
1733 | |
1734 | bytes_left = bytes; | |
1735 | p = buffer; | |
1736 | while (bytes_left > 0) { | |
1737 | ret = read(fd, p, bytes_left); | |
1738 | if (!ret) | |
1739 | return 1; | |
1740 | else if (ret < 0) { | |
db7e0552 | 1741 | if (errno != EAGAIN) { |
1f79c4a0 | 1742 | perror("read"); |
db7e0552 JA |
1743 | return -1; |
1744 | } | |
a649216c | 1745 | |
5c0f40f7 JA |
1746 | /* |
1747 | * never do partial reads. we can return if we | |
1748 | * didn't read anything and we should not block, | |
1749 | * otherwise wait for data | |
1750 | */ | |
1751 | if ((bytes_left == bytes) && !block) | |
1752 | return 1; | |
1753 | ||
1754 | usleep(10); | |
1755 | continue; | |
1f79c4a0 JA |
1756 | } else { |
1757 | p += ret; | |
1758 | bytes_left -= ret; | |
1759 | } | |
1760 | } | |
1761 | ||
1762 | return 0; | |
1763 | } | |
1764 | ||
c0e0dbc2 | 1765 | static int read_events(int fd, int always_block, int *fdblock) |
cb2a1a62 | 1766 | { |
287fa3d6 | 1767 | struct per_dev_info *pdi = NULL; |
e820abd7 | 1768 | unsigned int events = 0; |
7d747d22 JA |
1769 | |
1770 | while (!is_done() && events < rb_batch) { | |
1771 | struct blk_io_trace *bit; | |
1772 | struct trace *t; | |
db7e0552 | 1773 | int pdu_len, should_block, ret; |
7d747d22 JA |
1774 | __u32 magic; |
1775 | ||
d36421e4 | 1776 | bit = bit_alloc(); |
cb2a1a62 | 1777 | |
c0e0dbc2 JA |
1778 | should_block = !events || always_block; |
1779 | ||
db7e0552 JA |
1780 | ret = read_data(fd, bit, sizeof(*bit), should_block, fdblock); |
1781 | if (ret) { | |
eb9bd4e9 | 1782 | bit_free(bit); |
db7e0552 JA |
1783 | if (!events && ret < 0) |
1784 | events = ret; | |
cb2a1a62 | 1785 | break; |
eb9bd4e9 | 1786 | } |
cb2a1a62 | 1787 | |
7d747d22 JA |
1788 | magic = be32_to_cpu(bit->magic); |
1789 | if ((magic & 0xffffff00) != BLK_IO_TRACE_MAGIC) { | |
1790 | fprintf(stderr, "Bad magic %x\n", magic); | |
1791 | break; | |
1792 | } | |
1793 | ||
1794 | pdu_len = be16_to_cpu(bit->pdu_len); | |
1795 | if (pdu_len) { | |
1796 | void *ptr = realloc(bit, sizeof(*bit) + pdu_len); | |
1797 | ||
c0e0dbc2 | 1798 | if (read_data(fd, ptr + sizeof(*bit), pdu_len, 1, fdblock)) { |
eb9bd4e9 | 1799 | bit_free(ptr); |
7d747d22 | 1800 | break; |
eb9bd4e9 | 1801 | } |
7d747d22 JA |
1802 | |
1803 | bit = ptr; | |
1804 | } | |
1805 | ||
d6222db8 JA |
1806 | trace_to_cpu(bit); |
1807 | ||
1808 | if (verify_trace(bit)) { | |
1809 | bit_free(bit); | |
1810 | continue; | |
1811 | } | |
1812 | ||
d36421e4 | 1813 | t = t_alloc(); |
cb2a1a62 JA |
1814 | memset(t, 0, sizeof(*t)); |
1815 | t->bit = bit; | |
1816 | ||
7d747d22 JA |
1817 | t->next = trace_list; |
1818 | trace_list = t; | |
1f7afa72 | 1819 | |
f7bd1a9b | 1820 | if (!pdi || pdi->dev != bit->device) |
287fa3d6 JA |
1821 | pdi = get_dev_info(bit->device); |
1822 | ||
1823 | if (bit->time > pdi->last_read_time) | |
1824 | pdi->last_read_time = bit->time; | |
1825 | ||
7d747d22 | 1826 | events++; |
cb2a1a62 JA |
1827 | } |
1828 | ||
7d747d22 | 1829 | return events; |
cb2a1a62 JA |
1830 | } |
1831 | ||
d5396421 | 1832 | static int do_file(void) |
d0ca268b | 1833 | { |
7d747d22 | 1834 | struct per_cpu_info *pci; |
73877e12 NS |
1835 | struct per_dev_info *pdi; |
1836 | int i, j, events, events_added; | |
d0ca268b | 1837 | |
7d747d22 JA |
1838 | /* |
1839 | * first prepare all files for reading | |
1840 | */ | |
e8741a4a | 1841 | for (i = 0; i < ndevices; i++) { |
73877e12 NS |
1842 | pdi = &devices[i]; |
1843 | pdi->nfiles = 0; | |
73877e12 | 1844 | |
74feaeb5 | 1845 | for (j = 0;; j++) { |
e7c9f3ff | 1846 | struct stat st; |
d1d7f15f | 1847 | int len = 0; |
6e0073ed | 1848 | char *p, *dname; |
87b72777 | 1849 | |
e7c9f3ff NS |
1850 | pci = get_cpu_info(pdi, j); |
1851 | pci->cpu = j; | |
7d747d22 | 1852 | pci->fd = -1; |
c0e0dbc2 | 1853 | pci->fdblock = -1; |
6e0073ed JA |
1854 | |
1855 | p = strdup(pdi->name); | |
1856 | dname = dirname(p); | |
1857 | if (strcmp(dname, ".")) { | |
1858 | input_dir = dname; | |
1859 | p = strdup(pdi->name); | |
1860 | strcpy(pdi->name, basename(p)); | |
1861 | } | |
1862 | free(p); | |
d0ca268b | 1863 | |
d1d7f15f JA |
1864 | if (input_dir) |
1865 | len = sprintf(pci->fname, "%s/", input_dir); | |
1866 | ||
1867 | snprintf(pci->fname + len, sizeof(pci->fname)-1-len, | |
7d747d22 | 1868 | "%s.blktrace.%d", pdi->name, pci->cpu); |
e7c9f3ff NS |
1869 | if (stat(pci->fname, &st) < 0) |
1870 | break; | |
74feaeb5 AB |
1871 | if (st.st_size) { |
1872 | pci->fd = open(pci->fname, O_RDONLY); | |
1873 | if (pci->fd < 0) { | |
1874 | perror(pci->fname); | |
1875 | continue; | |
1876 | } | |
e7c9f3ff NS |
1877 | } |
1878 | ||
7d747d22 | 1879 | printf("Input file %s added\n", pci->fname); |
73877e12 | 1880 | pdi->nfiles++; |
824c2b39 | 1881 | cpu_mark_online(pdi, pci->cpu); |
d0ca268b | 1882 | } |
d5396421 JA |
1883 | } |
1884 | ||
7d747d22 JA |
1885 | /* |
1886 | * now loop over the files reading in the data | |
1887 | */ | |
412819ce | 1888 | do { |
53c68c88 JA |
1889 | unsigned long long youngest; |
1890 | ||
7d747d22 | 1891 | events_added = 0; |
287fa3d6 | 1892 | last_allowed_time = -1ULL; |
d5396421 | 1893 | |
7d747d22 | 1894 | for (i = 0; i < ndevices; i++) { |
73877e12 | 1895 | pdi = &devices[i]; |
66930177 | 1896 | pdi->last_read_time = -1ULL; |
73877e12 NS |
1897 | |
1898 | for (j = 0; j < pdi->nfiles; j++) { | |
d5396421 | 1899 | |
73877e12 | 1900 | pci = get_cpu_info(pdi, j); |
d5396421 | 1901 | |
7d747d22 JA |
1902 | if (pci->fd == -1) |
1903 | continue; | |
51128a28 | 1904 | |
210824c3 JA |
1905 | pci->smallest_seq_read = -1; |
1906 | ||
c0e0dbc2 | 1907 | events = read_events(pci->fd, 1, &pci->fdblock); |
db7e0552 | 1908 | if (events <= 0) { |
824c2b39 | 1909 | cpu_mark_offline(pdi, pci->cpu); |
7d747d22 JA |
1910 | close(pci->fd); |
1911 | pci->fd = -1; | |
1912 | continue; | |
1913 | } | |
d5396421 | 1914 | |
287fa3d6 JA |
1915 | if (pdi->last_read_time < last_allowed_time) |
1916 | last_allowed_time = pdi->last_read_time; | |
d5396421 | 1917 | |
7d747d22 JA |
1918 | events_added += events; |
1919 | } | |
2ff323b0 | 1920 | } |
d5396421 | 1921 | |
53c68c88 JA |
1922 | if (sort_entries(&youngest)) |
1923 | break; | |
1924 | ||
1925 | if (youngest > stopwatch_end) | |
287fa3d6 JA |
1926 | break; |
1927 | ||
a649216c | 1928 | show_entries_rb(0); |
cb2a1a62 | 1929 | |
7d747d22 | 1930 | } while (events_added); |
d5396421 | 1931 | |
a649216c JA |
1932 | if (rb_sort_entries) |
1933 | show_entries_rb(1); | |
1934 | ||
7d747d22 | 1935 | return 0; |
412819ce | 1936 | } |
d5396421 | 1937 | |
412819ce JA |
1938 | static int do_stdin(void) |
1939 | { | |
53c68c88 | 1940 | unsigned long long youngest; |
c0e0dbc2 | 1941 | int fd, events, fdblock; |
d5396421 | 1942 | |
be925321 | 1943 | last_allowed_time = -1ULL; |
1f79c4a0 | 1944 | fd = dup(STDIN_FILENO); |
0b07f23e JA |
1945 | if (fd == -1) { |
1946 | perror("dup stdin"); | |
1947 | return -1; | |
1948 | } | |
d5396421 | 1949 | |
c0e0dbc2 | 1950 | fdblock = -1; |
db7e0552 | 1951 | while ((events = read_events(fd, 0, &fdblock)) > 0) { |
412819ce | 1952 | |
210824c3 | 1953 | #if 0 |
0b07f23e | 1954 | smallest_seq_read = -1U; |
210824c3 | 1955 | #endif |
0b07f23e | 1956 | |
53c68c88 JA |
1957 | if (sort_entries(&youngest)) |
1958 | break; | |
1959 | ||
1960 | if (youngest > stopwatch_end) | |
2ff323b0 JA |
1961 | break; |
1962 | ||
763d936e | 1963 | show_entries_rb(0); |
0b07f23e | 1964 | } |
d5396421 | 1965 | |
a649216c JA |
1966 | if (rb_sort_entries) |
1967 | show_entries_rb(1); | |
1968 | ||
d5396421 | 1969 | close(fd); |
d5396421 JA |
1970 | return 0; |
1971 | } | |
d0ca268b | 1972 | |
cbc927b6 | 1973 | static void show_stats(void) |
412819ce | 1974 | { |
cbc927b6 JA |
1975 | if (!ofp) |
1976 | return; | |
1977 | if (stats_printed) | |
1978 | return; | |
1979 | ||
1980 | stats_printed = 1; | |
1981 | ||
1982 | if (per_process_stats) | |
1983 | show_process_stats(); | |
1984 | ||
1985 | if (per_device_and_cpu_stats) | |
1986 | show_device_and_cpu_stats(); | |
1987 | ||
152f6476 | 1988 | fflush(ofp); |
412819ce JA |
1989 | } |
1990 | ||
e820abd7 | 1991 | static void handle_sigint(__attribute__((__unused__)) int sig) |
412819ce JA |
1992 | { |
1993 | done = 1; | |
412819ce JA |
1994 | } |
1995 | ||
46e6968b NS |
1996 | /* |
1997 | * Extract start and duration times from a string, allowing | |
1998 | * us to specify a time interval of interest within a trace. | |
1999 | * Format: "duration" (start is zero) or "start:duration". | |
2000 | */ | |
2001 | static int find_stopwatch_interval(char *string) | |
2002 | { | |
2003 | double value; | |
2004 | char *sp; | |
2005 | ||
2006 | value = strtod(string, &sp); | |
2007 | if (sp == string) { | |
2008 | fprintf(stderr,"Invalid stopwatch timer: %s\n", string); | |
2009 | return 1; | |
2010 | } | |
2011 | if (*sp == ':') { | |
2012 | stopwatch_start = DOUBLE_TO_NANO_ULL(value); | |
2013 | string = sp + 1; | |
2014 | value = strtod(string, &sp); | |
2015 | if (sp == string || *sp != '\0') { | |
2016 | fprintf(stderr,"Invalid stopwatch duration time: %s\n", | |
2017 | string); | |
2018 | return 1; | |
2019 | } | |
2020 | } else if (*sp != '\0') { | |
2021 | fprintf(stderr,"Invalid stopwatch start timer: %s\n", string); | |
2022 | return 1; | |
2023 | } | |
1b928247 JA |
2024 | stopwatch_end = DOUBLE_TO_NANO_ULL(value); |
2025 | if (stopwatch_end <= stopwatch_start) { | |
2026 | fprintf(stderr, "Invalid stopwatch interval: %Lu -> %Lu\n", | |
2027 | stopwatch_start, stopwatch_end); | |
2028 | return 1; | |
2029 | } | |
2030 | ||
46e6968b NS |
2031 | return 0; |
2032 | } | |
2033 | ||
52724a0e JA |
2034 | static char usage_str[] = \ |
2035 | "[ -i <input name> ] [-o <output name> [ -s ] [ -t ] [ -q ]\n" \ | |
2036 | "[ -w start:stop ] [ -f output format ] [ -F format spec ] [ -v] \n\n" \ | |
2037 | "\t-i Input file containing trace data, or '-' for stdin\n" \ | |
d1d7f15f | 2038 | "\t-D Directory to prepend to input file names\n" \ |
52724a0e JA |
2039 | "\t-o Output file. If not given, output is stdout\n" \ |
2040 | "\t-b stdin read batching\n" \ | |
2041 | "\t-s Show per-program io statistics\n" \ | |
ac740d98 | 2042 | "\t-h Hash processes by name, not pid\n" \ |
52724a0e JA |
2043 | "\t-t Track individual ios. Will tell you the time a request took\n" \ |
2044 | "\t to get queued, to get dispatched, and to get completed\n" \ | |
2045 | "\t-q Quiet. Don't display any stats at the end of the trace\n" \ | |
2046 | "\t-w Only parse data between the given time interval in seconds.\n" \ | |
2047 | "\t If 'start' isn't given, blkparse defaults the start time to 0\n" \ | |
d915dee6 JA |
2048 | "\t-f Output format. Customize the output format. The format field\n" \ |
2049 | "\t identifies can be found in the documentation\n" \ | |
52724a0e | 2050 | "\t-F Format specification. Can be found in the documentation\n" \ |
57ea8602 JA |
2051 | "\t-v More verbose for marginal errors\n" \ |
2052 | "\t-V Print program version info\n\n"; | |
52724a0e | 2053 | |
1f79c4a0 JA |
2054 | static void usage(char *prog) |
2055 | { | |
52724a0e | 2056 | fprintf(stderr, "Usage: %s %s %s", prog, blkparse_version, usage_str); |
1f79c4a0 JA |
2057 | } |
2058 | ||
d5396421 JA |
2059 | int main(int argc, char *argv[]) |
2060 | { | |
152f6476 | 2061 | char *ofp_buffer; |
98f8386b | 2062 | int i, c, ret, mode; |
98f8386b | 2063 | int act_mask_tmp = 0; |
d5396421 JA |
2064 | |
2065 | while ((c = getopt_long(argc, argv, S_OPTS, l_opts, NULL)) != -1) { | |
2066 | switch (c) { | |
98f8386b AB |
2067 | case 'a': |
2068 | i = find_mask_map(optarg); | |
2069 | if (i < 0) { | |
2070 | fprintf(stderr,"Invalid action mask %s\n", | |
2071 | optarg); | |
2072 | return 1; | |
2073 | } | |
2074 | act_mask_tmp |= i; | |
2075 | break; | |
2076 | ||
2077 | case 'A': | |
2078 | if ((sscanf(optarg, "%x", &i) != 1) || | |
2079 | !valid_act_opt(i)) { | |
2080 | fprintf(stderr, | |
2081 | "Invalid set action mask %s/0x%x\n", | |
2082 | optarg, i); | |
2083 | return 1; | |
2084 | } | |
2085 | act_mask_tmp = i; | |
2086 | break; | |
d5396421 | 2087 | case 'i': |
e7c9f3ff NS |
2088 | if (!strcmp(optarg, "-") && !pipeline) |
2089 | pipeline = 1; | |
2090 | else if (resize_devices(optarg) != 0) | |
2091 | return 1; | |
d5396421 | 2092 | break; |
d1d7f15f JA |
2093 | case 'D': |
2094 | input_dir = optarg; | |
2095 | break; | |
d5396421 | 2096 | case 'o': |
66efebf8 | 2097 | output_name = optarg; |
d5396421 | 2098 | break; |
79f19470 JA |
2099 | case 'b': |
2100 | rb_batch = atoi(optarg); | |
2101 | if (rb_batch <= 0) | |
2102 | rb_batch = RB_BATCH_DEFAULT; | |
2103 | break; | |
152f6476 JA |
2104 | case 's': |
2105 | per_process_stats = 1; | |
2106 | break; | |
7997c5b0 JA |
2107 | case 't': |
2108 | track_ios = 1; | |
2109 | break; | |
1e1c60f1 NS |
2110 | case 'q': |
2111 | per_device_and_cpu_stats = 0; | |
2112 | break; | |
46e6968b NS |
2113 | case 'w': |
2114 | if (find_stopwatch_interval(optarg) != 0) | |
2115 | return 1; | |
2116 | break; | |
ab197ca7 AB |
2117 | case 'f': |
2118 | set_all_format_specs(optarg); | |
2119 | break; | |
2120 | case 'F': | |
2121 | if (add_format_spec(optarg) != 0) | |
2122 | return 1; | |
2123 | break; | |
d915dee6 | 2124 | case 'h': |
715d8021 | 2125 | ppi_hash_by_pid = 0; |
bf0720af | 2126 | break; |
52724a0e | 2127 | case 'v': |
57ea8602 JA |
2128 | verbose++; |
2129 | break; | |
2130 | case 'V': | |
52724a0e JA |
2131 | printf("%s version %s\n", argv[0], blkparse_version); |
2132 | return 0; | |
d5396421 | 2133 | default: |
1f79c4a0 | 2134 | usage(argv[0]); |
d5396421 JA |
2135 | return 1; |
2136 | } | |
d0ca268b JA |
2137 | } |
2138 | ||
e7c9f3ff NS |
2139 | while (optind < argc) { |
2140 | if (!strcmp(argv[optind], "-") && !pipeline) | |
2141 | pipeline = 1; | |
2142 | else if (resize_devices(argv[optind]) != 0) | |
2143 | return 1; | |
2144 | optind++; | |
2145 | } | |
2146 | ||
2147 | if (!pipeline && !ndevices) { | |
1f79c4a0 | 2148 | usage(argv[0]); |
d5396421 JA |
2149 | return 1; |
2150 | } | |
2151 | ||
98f8386b AB |
2152 | if (act_mask_tmp != 0) |
2153 | act_mask = act_mask_tmp; | |
2154 | ||
7997c5b0 | 2155 | memset(&rb_sort_root, 0, sizeof(rb_sort_root)); |
412819ce JA |
2156 | |
2157 | signal(SIGINT, handle_sigint); | |
2158 | signal(SIGHUP, handle_sigint); | |
2159 | signal(SIGTERM, handle_sigint); | |
d5396421 | 2160 | |
d69db225 JA |
2161 | setlocale(LC_NUMERIC, "en_US"); |
2162 | ||
a66877e6 | 2163 | if (!output_name) { |
152f6476 | 2164 | ofp = fdopen(STDOUT_FILENO, "w"); |
a66877e6 JA |
2165 | mode = _IOLBF; |
2166 | } else { | |
152f6476 JA |
2167 | char ofname[128]; |
2168 | ||
7a9690c0 | 2169 | snprintf(ofname, sizeof(ofname) - 1, "%s", output_name); |
152f6476 | 2170 | ofp = fopen(ofname, "w"); |
a66877e6 | 2171 | mode = _IOFBF; |
152f6476 JA |
2172 | } |
2173 | ||
2174 | if (!ofp) { | |
2175 | perror("fopen"); | |
2176 | return 1; | |
2177 | } | |
2178 | ||
2179 | ofp_buffer = malloc(4096); | |
a66877e6 | 2180 | if (setvbuf(ofp, ofp_buffer, mode, 4096)) { |
152f6476 JA |
2181 | perror("setvbuf"); |
2182 | return 1; | |
2183 | } | |
2184 | ||
e7c9f3ff | 2185 | if (pipeline) |
d5396421 JA |
2186 | ret = do_stdin(); |
2187 | else | |
2188 | ret = do_file(); | |
2189 | ||
cbc927b6 | 2190 | show_stats(); |
eb9bd4e9 | 2191 | free(ofp_buffer); |
d5396421 | 2192 | return ret; |
d0ca268b | 2193 | } |