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; |
a43c1c17 | 197 | unsigned long read_sequence; |
8fc0abbc JA |
198 | }; |
199 | ||
cb2a1a62 | 200 | static struct rb_root rb_sort_root; |
a649216c JA |
201 | static unsigned long rb_sort_entries; |
202 | ||
cb2a1a62 JA |
203 | static struct trace *trace_list; |
204 | ||
d36421e4 JA |
205 | /* |
206 | * allocation cache | |
207 | */ | |
208 | static struct blk_io_trace *bit_alloc_list; | |
209 | static struct trace *t_alloc_list; | |
210 | ||
7997c5b0 JA |
211 | /* |
212 | * for tracking individual ios | |
213 | */ | |
214 | struct io_track { | |
215 | struct rb_node rb_node; | |
216 | ||
217 | __u64 sector; | |
218 | __u32 pid; | |
bf0720af | 219 | char comm[16]; |
95c15013 | 220 | unsigned long long allocation_time; |
7997c5b0 JA |
221 | unsigned long long queue_time; |
222 | unsigned long long dispatch_time; | |
223 | unsigned long long completion_time; | |
224 | }; | |
225 | ||
e7c9f3ff NS |
226 | static int ndevices; |
227 | static struct per_dev_info *devices; | |
228 | static char *get_dev_name(struct per_dev_info *, char *, int); | |
210824c3 | 229 | static int trace_rb_insert_last(struct per_dev_info *, struct trace *); |
d0ca268b | 230 | |
71d5d4c9 | 231 | FILE *ofp = NULL; |
e7c9f3ff | 232 | static char *output_name; |
d1d7f15f | 233 | static char *input_dir; |
e7c9f3ff NS |
234 | |
235 | static unsigned long long genesis_time; | |
287fa3d6 | 236 | static unsigned long long last_allowed_time; |
46e6968b | 237 | static unsigned long long stopwatch_start; /* start from zero by default */ |
bc171579 | 238 | static unsigned long long stopwatch_end = -1ULL; /* "infinity" */ |
a43c1c17 | 239 | static unsigned long read_sequence; |
152f6476 JA |
240 | |
241 | static int per_process_stats; | |
cbc927b6 | 242 | static int per_device_and_cpu_stats = 1; |
7997c5b0 | 243 | static int track_ios; |
bf0720af | 244 | static int ppi_hash_by_pid = 1; |
57ea8602 | 245 | static int verbose; |
98f8386b | 246 | static unsigned int act_mask = -1U; |
cbc927b6 | 247 | static int stats_printed; |
d0ca268b | 248 | |
1d24fc14 JA |
249 | static unsigned int t_alloc_cache; |
250 | static unsigned int bit_alloc_cache; | |
251 | ||
7d747d22 | 252 | #define RB_BATCH_DEFAULT (512) |
e820abd7 | 253 | static unsigned int rb_batch = RB_BATCH_DEFAULT; |
79f19470 | 254 | |
e7c9f3ff NS |
255 | static int pipeline; |
256 | ||
412819ce JA |
257 | #define is_done() (*(volatile int *)(&done)) |
258 | static volatile int done; | |
259 | ||
bf0720af JA |
260 | #define JHASH_RANDOM (0x3af5f2ee) |
261 | ||
824c2b39 JA |
262 | #define CPUS_PER_LONG (8 * sizeof(unsigned long)) |
263 | #define CPU_IDX(cpu) ((cpu) / CPUS_PER_LONG) | |
264 | #define CPU_BIT(cpu) ((cpu) & (CPUS_PER_LONG - 1)) | |
265 | ||
210824c3 JA |
266 | static void resize_cpu_info(struct per_dev_info *pdi, int cpu) |
267 | { | |
268 | struct per_cpu_info *cpus = pdi->cpus; | |
269 | int ncpus = pdi->ncpus; | |
270 | int new_count = cpu + 1; | |
271 | int new_space, size; | |
272 | char *new_start; | |
273 | ||
274 | size = new_count * sizeof(struct per_cpu_info); | |
275 | cpus = realloc(cpus, size); | |
276 | if (!cpus) { | |
277 | char name[20]; | |
278 | fprintf(stderr, "Out of memory, CPU info for device %s (%d)\n", | |
279 | get_dev_name(pdi, name, sizeof(name)), size); | |
280 | exit(1); | |
281 | } | |
282 | ||
283 | new_start = (char *)cpus + (ncpus * sizeof(struct per_cpu_info)); | |
284 | new_space = (new_count - ncpus) * sizeof(struct per_cpu_info); | |
285 | memset(new_start, 0, new_space); | |
286 | ||
287 | pdi->ncpus = new_count; | |
288 | pdi->cpus = cpus; | |
289 | ||
290 | for (new_count = 0; new_count < pdi->ncpus; new_count++) { | |
291 | struct per_cpu_info *pci = &pdi->cpus[new_count]; | |
292 | ||
293 | if (!pci->fd) { | |
294 | pci->fd = -1; | |
295 | memset(&pci->rb_last, 0, sizeof(pci->rb_last)); | |
296 | pci->rb_last_entries = 0; | |
297 | pci->last_sequence = -1; | |
298 | } | |
299 | } | |
300 | } | |
301 | ||
302 | static struct per_cpu_info *get_cpu_info(struct per_dev_info *pdi, int cpu) | |
303 | { | |
304 | struct per_cpu_info *pci; | |
305 | ||
306 | if (cpu >= pdi->ncpus) | |
307 | resize_cpu_info(pdi, cpu); | |
308 | ||
309 | pci = &pdi->cpus[cpu]; | |
310 | pci->cpu = cpu; | |
311 | return pci; | |
312 | } | |
313 | ||
314 | ||
315 | static int resize_devices(char *name) | |
316 | { | |
317 | int size = (ndevices + 1) * sizeof(struct per_dev_info); | |
318 | ||
319 | devices = realloc(devices, size); | |
320 | if (!devices) { | |
321 | fprintf(stderr, "Out of memory, device %s (%d)\n", name, size); | |
322 | return 1; | |
323 | } | |
324 | memset(&devices[ndevices], 0, sizeof(struct per_dev_info)); | |
325 | devices[ndevices].name = name; | |
326 | ndevices++; | |
327 | return 0; | |
328 | } | |
329 | ||
330 | static struct per_dev_info *get_dev_info(dev_t dev) | |
331 | { | |
332 | struct per_dev_info *pdi; | |
333 | int i; | |
334 | ||
335 | for (i = 0; i < ndevices; i++) { | |
336 | if (!devices[i].dev) | |
337 | devices[i].dev = dev; | |
338 | if (devices[i].dev == dev) | |
339 | return &devices[i]; | |
340 | } | |
341 | ||
342 | if (resize_devices(NULL)) | |
343 | return NULL; | |
344 | ||
345 | pdi = &devices[ndevices - 1]; | |
346 | pdi->dev = dev; | |
347 | pdi->first_reported_time = 0; | |
348 | pdi->last_read_time = 0; | |
210824c3 JA |
349 | |
350 | return pdi; | |
351 | } | |
352 | ||
66930177 | 353 | static void insert_skip(struct per_cpu_info *pci, unsigned long start, |
492da111 AB |
354 | unsigned long end) |
355 | { | |
356 | struct skip_info *sip; | |
357 | ||
66930177 | 358 | for (sip = pci->skips_tail; sip != NULL; sip = sip->prev) { |
492da111 AB |
359 | if (end == (sip->start - 1)) { |
360 | sip->start = start; | |
361 | return; | |
362 | } else if (start == (sip->end + 1)) { | |
363 | sip->end = end; | |
364 | return; | |
365 | } | |
366 | } | |
367 | ||
368 | sip = malloc(sizeof(struct skip_info)); | |
369 | sip->start = start; | |
370 | sip->end = end; | |
371 | sip->prev = sip->next = NULL; | |
66930177 JA |
372 | if (pci->skips_tail == NULL) |
373 | pci->skips_head = pci->skips_tail = sip; | |
492da111 | 374 | else { |
66930177 JA |
375 | sip->prev = pci->skips_tail; |
376 | pci->skips_tail->next = sip; | |
377 | pci->skips_tail = sip; | |
492da111 AB |
378 | } |
379 | } | |
380 | ||
66930177 | 381 | static void remove_sip(struct per_cpu_info *pci, struct skip_info *sip) |
492da111 AB |
382 | { |
383 | if (sip->prev == NULL) { | |
384 | if (sip->next == NULL) | |
66930177 | 385 | pci->skips_head = pci->skips_tail = NULL; |
492da111 | 386 | else { |
66930177 | 387 | pci->skips_head = sip->next; |
492da111 AB |
388 | sip->next->prev = NULL; |
389 | } | |
390 | } else if (sip->next == NULL) { | |
66930177 | 391 | pci->skips_tail = sip->prev; |
492da111 AB |
392 | sip->prev->next = NULL; |
393 | } else { | |
394 | sip->prev->next = sip->next; | |
395 | sip->next->prev = sip->prev; | |
396 | } | |
397 | ||
398 | sip->prev = sip->next = NULL; | |
399 | free(sip); | |
400 | } | |
401 | ||
402 | #define IN_SKIP(sip,seq) (((sip)->start <= (seq)) && ((seq) <= sip->end)) | |
66930177 | 403 | static int check_current_skips(struct per_cpu_info *pci, unsigned long seq) |
492da111 AB |
404 | { |
405 | struct skip_info *sip; | |
406 | ||
66930177 JA |
407 | for (sip = pci->skips_tail; sip != NULL; sip = sip->prev) { |
408 | if (IN_SKIP(sip, seq)) { | |
492da111 AB |
409 | if (sip->start == seq) { |
410 | if (sip->end == seq) | |
66930177 | 411 | remove_sip(pci, sip); |
492da111 AB |
412 | else |
413 | sip->start += 1; | |
414 | } else if (sip->end == seq) | |
415 | sip->end -= 1; | |
416 | else { | |
417 | sip->end = seq - 1; | |
66930177 | 418 | insert_skip(pci, seq + 1, sip->end); |
492da111 AB |
419 | } |
420 | return 1; | |
421 | } | |
422 | } | |
66930177 | 423 | |
492da111 AB |
424 | return 0; |
425 | } | |
426 | ||
427 | static void collect_pdi_skips(struct per_dev_info *pdi) | |
428 | { | |
429 | struct skip_info *sip; | |
66930177 | 430 | int cpu; |
492da111 AB |
431 | |
432 | pdi->skips = 0; | |
433 | pdi->seq_skips = 0; | |
66930177 JA |
434 | |
435 | for (cpu = 0; cpu < pdi->ncpus; cpu++) { | |
436 | struct per_cpu_info *pci = &pdi->cpus[cpu]; | |
437 | ||
438 | for (sip = pci->skips_head; sip != NULL; sip = sip->next) { | |
439 | pdi->skips++; | |
440 | pdi->seq_skips += (sip->end - sip->start + 1); | |
441 | if (verbose) | |
442 | fprintf(stderr,"(%d,%d): skipping %lu -> %lu\n", | |
443 | MAJOR(pdi->dev), MINOR(pdi->dev), | |
444 | sip->start, sip->end); | |
445 | } | |
492da111 AB |
446 | } |
447 | } | |
448 | ||
824c2b39 JA |
449 | static void cpu_mark_online(struct per_dev_info *pdi, unsigned int cpu) |
450 | { | |
451 | if (cpu >= pdi->cpu_map_max || !pdi->cpu_map) { | |
452 | int new_max = (cpu + CPUS_PER_LONG) & ~(CPUS_PER_LONG - 1); | |
453 | unsigned long *map = malloc(new_max / sizeof(long)); | |
454 | ||
455 | memset(map, 0, new_max / sizeof(long)); | |
456 | ||
457 | if (pdi->cpu_map) { | |
458 | memcpy(map, pdi->cpu_map, pdi->cpu_map_max / sizeof(long)); | |
459 | free(pdi->cpu_map); | |
460 | } | |
461 | ||
462 | pdi->cpu_map = map; | |
463 | pdi->cpu_map_max = new_max; | |
464 | } | |
465 | ||
466 | pdi->cpu_map[CPU_IDX(cpu)] |= (1UL << CPU_BIT(cpu)); | |
467 | } | |
468 | ||
469 | static inline void cpu_mark_offline(struct per_dev_info *pdi, int cpu) | |
470 | { | |
471 | pdi->cpu_map[CPU_IDX(cpu)] &= ~(1UL << CPU_BIT(cpu)); | |
472 | } | |
473 | ||
474 | static inline int cpu_is_online(struct per_dev_info *pdi, int cpu) | |
475 | { | |
476 | return (pdi->cpu_map[CPU_IDX(cpu)] & (1UL << CPU_BIT(cpu))) != 0; | |
477 | } | |
478 | ||
bf0720af JA |
479 | static inline int ppi_hash_pid(__u32 pid) |
480 | { | |
481 | return jhash_1word(pid, JHASH_RANDOM) & PPI_HASH_MASK; | |
482 | } | |
483 | ||
484 | static inline int ppi_hash_name(const char *name) | |
152f6476 | 485 | { |
bf0720af JA |
486 | return jhash(name, 16, JHASH_RANDOM) & PPI_HASH_MASK; |
487 | } | |
488 | ||
489 | static inline int ppi_hash(struct per_process_info *ppi) | |
490 | { | |
491 | if (ppi_hash_by_pid) | |
492 | return ppi_hash_pid(ppi->pid); | |
493 | ||
bf0720af | 494 | return ppi_hash_name(ppi->name); |
152f6476 JA |
495 | } |
496 | ||
497 | static inline void add_process_to_hash(struct per_process_info *ppi) | |
498 | { | |
bf0720af | 499 | const int hash_idx = ppi_hash(ppi); |
152f6476 | 500 | |
bf0720af JA |
501 | ppi->hash_next = ppi_hash_table[hash_idx]; |
502 | ppi_hash_table[hash_idx] = ppi; | |
152f6476 JA |
503 | } |
504 | ||
505 | static inline void add_process_to_list(struct per_process_info *ppi) | |
506 | { | |
507 | ppi->list_next = ppi_list; | |
508 | ppi_list = ppi; | |
886ecf0e | 509 | ppi_list_entries++; |
152f6476 JA |
510 | } |
511 | ||
bf0720af JA |
512 | static struct per_process_info *find_process_by_name(char *name) |
513 | { | |
514 | const int hash_idx = ppi_hash_name(name); | |
515 | struct per_process_info *ppi; | |
516 | ||
517 | ppi = ppi_hash_table[hash_idx]; | |
518 | while (ppi) { | |
519 | if (!strcmp(ppi->name, name)) | |
520 | return ppi; | |
521 | ||
522 | ppi = ppi->hash_next; | |
523 | } | |
524 | ||
525 | return NULL; | |
526 | } | |
527 | ||
152f6476 JA |
528 | static struct per_process_info *find_process_by_pid(__u32 pid) |
529 | { | |
bf0720af | 530 | const int hash_idx = ppi_hash_pid(pid); |
152f6476 JA |
531 | struct per_process_info *ppi; |
532 | ||
bf0720af | 533 | ppi = ppi_hash_table[hash_idx]; |
152f6476 JA |
534 | while (ppi) { |
535 | if (ppi->pid == pid) | |
536 | return ppi; | |
537 | ||
538 | ppi = ppi->hash_next; | |
539 | } | |
540 | ||
541 | return NULL; | |
542 | } | |
543 | ||
bf0720af JA |
544 | static struct per_process_info *find_process(__u32 pid, char *name) |
545 | { | |
715d8021 JA |
546 | struct per_process_info *ppi; |
547 | ||
bf0720af JA |
548 | if (ppi_hash_by_pid) |
549 | return find_process_by_pid(pid); | |
550 | ||
715d8021 JA |
551 | ppi = find_process_by_name(name); |
552 | if (ppi && ppi->pid != pid) | |
553 | ppi->more_than_one = 1; | |
554 | ||
555 | return ppi; | |
bf0720af JA |
556 | } |
557 | ||
210824c3 JA |
558 | /* |
559 | * struct trace and blktrace allocation cache, we do potentially | |
560 | * millions of mallocs for these structures while only using at most | |
561 | * a few thousand at the time | |
562 | */ | |
563 | static inline void t_free(struct trace *t) | |
564 | { | |
565 | if (t_alloc_cache < 1024) { | |
566 | t->next = t_alloc_list; | |
567 | t_alloc_list = t; | |
568 | t_alloc_cache++; | |
569 | } else | |
570 | free(t); | |
571 | } | |
572 | ||
573 | static inline struct trace *t_alloc(void) | |
574 | { | |
575 | struct trace *t = t_alloc_list; | |
576 | ||
577 | if (t) { | |
578 | t_alloc_list = t->next; | |
579 | t_alloc_cache--; | |
580 | return t; | |
581 | } | |
582 | ||
583 | return malloc(sizeof(*t)); | |
584 | } | |
585 | ||
586 | static inline void bit_free(struct blk_io_trace *bit) | |
587 | { | |
588 | if (bit_alloc_cache < 1024 && !bit->pdu_len) { | |
589 | /* | |
590 | * abuse a 64-bit field for a next pointer for the free item | |
591 | */ | |
592 | bit->time = (__u64) (unsigned long) bit_alloc_list; | |
593 | bit_alloc_list = (struct blk_io_trace *) bit; | |
594 | bit_alloc_cache++; | |
595 | } else | |
596 | free(bit); | |
597 | } | |
598 | ||
599 | static inline struct blk_io_trace *bit_alloc(void) | |
600 | { | |
601 | struct blk_io_trace *bit = bit_alloc_list; | |
602 | ||
603 | if (bit) { | |
604 | bit_alloc_list = (struct blk_io_trace *) (unsigned long) \ | |
605 | bit->time; | |
606 | bit_alloc_cache--; | |
607 | return bit; | |
608 | } | |
609 | ||
610 | return malloc(sizeof(*bit)); | |
611 | } | |
612 | ||
613 | static inline void __put_trace_last(struct per_dev_info *pdi, struct trace *t) | |
614 | { | |
615 | struct per_cpu_info *pci = get_cpu_info(pdi, t->bit->cpu); | |
616 | ||
617 | rb_erase(&t->rb_node, &pci->rb_last); | |
618 | pci->rb_last_entries--; | |
619 | ||
620 | bit_free(t->bit); | |
621 | t_free(t); | |
622 | } | |
623 | ||
624 | static void put_trace(struct per_dev_info *pdi, struct trace *t) | |
625 | { | |
626 | rb_erase(&t->rb_node, &rb_sort_root); | |
627 | rb_sort_entries--; | |
628 | ||
629 | trace_rb_insert_last(pdi, t); | |
630 | } | |
631 | ||
89482da6 | 632 | static inline int trace_rb_insert(struct trace *t, struct rb_root *root) |
7997c5b0 | 633 | { |
2a1b3424 | 634 | struct rb_node **p = &root->rb_node; |
7997c5b0 JA |
635 | struct rb_node *parent = NULL; |
636 | struct trace *__t; | |
637 | ||
638 | while (*p) { | |
639 | parent = *p; | |
2a1b3424 | 640 | |
7997c5b0 JA |
641 | __t = rb_entry(parent, struct trace, rb_node); |
642 | ||
89482da6 JA |
643 | if (t->bit->time < __t->bit->time) |
644 | p = &(*p)->rb_left; | |
645 | else if (t->bit->time > __t->bit->time) | |
646 | p = &(*p)->rb_right; | |
647 | else if (t->bit->device < __t->bit->device) | |
e7c9f3ff NS |
648 | p = &(*p)->rb_left; |
649 | else if (t->bit->device > __t->bit->device) | |
650 | p = &(*p)->rb_right; | |
dcf0f7ed JA |
651 | else if (t->bit->sequence < __t->bit->sequence) |
652 | p = &(*p)->rb_left; | |
0b07f23e | 653 | else /* >= sequence */ |
dcf0f7ed | 654 | p = &(*p)->rb_right; |
7997c5b0 JA |
655 | } |
656 | ||
657 | rb_link_node(&t->rb_node, parent, p); | |
2a1b3424 | 658 | rb_insert_color(&t->rb_node, root); |
7997c5b0 JA |
659 | return 0; |
660 | } | |
661 | ||
2a1b3424 | 662 | static inline int trace_rb_insert_sort(struct trace *t) |
e3556946 | 663 | { |
89482da6 | 664 | if (!trace_rb_insert(t, &rb_sort_root)) { |
2a1b3424 JA |
665 | rb_sort_entries++; |
666 | return 0; | |
667 | } | |
668 | ||
669 | return 1; | |
670 | } | |
671 | ||
210824c3 | 672 | static int trace_rb_insert_last(struct per_dev_info *pdi, struct trace *t) |
2a1b3424 | 673 | { |
210824c3 JA |
674 | struct per_cpu_info *pci = get_cpu_info(pdi, t->bit->cpu); |
675 | ||
676 | if (trace_rb_insert(t, &pci->rb_last)) | |
677 | return 1; | |
678 | ||
679 | pci->rb_last_entries++; | |
680 | ||
681 | if (pci->rb_last_entries > rb_batch * pdi->nfiles) { | |
682 | struct rb_node *n = rb_first(&pci->rb_last); | |
683 | ||
684 | t = rb_entry(n, struct trace, rb_node); | |
685 | __put_trace_last(pdi, t); | |
2a1b3424 JA |
686 | } |
687 | ||
210824c3 | 688 | return 0; |
2a1b3424 JA |
689 | } |
690 | ||
691 | static struct trace *trace_rb_find(dev_t device, unsigned long sequence, | |
692 | struct rb_root *root, int order) | |
693 | { | |
694 | struct rb_node *n = root->rb_node; | |
695 | struct rb_node *prev = NULL; | |
e3556946 JA |
696 | struct trace *__t; |
697 | ||
2a1b3424 JA |
698 | while (n) { |
699 | __t = rb_entry(n, struct trace, rb_node); | |
700 | prev = n; | |
e3556946 | 701 | |
0583b6a2 | 702 | if (device < __t->bit->device) |
2a1b3424 | 703 | n = n->rb_left; |
0583b6a2 | 704 | else if (device > __t->bit->device) |
2a1b3424 | 705 | n = n->rb_right; |
0583b6a2 | 706 | else if (sequence < __t->bit->sequence) |
2a1b3424 | 707 | n = n->rb_left; |
e3556946 | 708 | else if (sequence > __t->bit->sequence) |
2a1b3424 | 709 | n = n->rb_right; |
e3556946 JA |
710 | else |
711 | return __t; | |
712 | } | |
713 | ||
2a1b3424 JA |
714 | /* |
715 | * hack - the list may not be sequence ordered because some | |
716 | * events don't have sequence and time matched. so we end up | |
717 | * being a little off in the rb lookup here, because we don't | |
718 | * know the time we are looking for. compensate by browsing | |
719 | * a little ahead from the last entry to find the match | |
720 | */ | |
721 | if (order && prev) { | |
722 | int max = 5; | |
723 | ||
724 | while (((n = rb_next(prev)) != NULL) && max--) { | |
725 | __t = rb_entry(n, struct trace, rb_node); | |
492da111 | 726 | |
2a1b3424 JA |
727 | if (__t->bit->device == device && |
728 | __t->bit->sequence == sequence) | |
729 | return __t; | |
730 | ||
731 | prev = n; | |
732 | } | |
733 | } | |
492da111 | 734 | |
e3556946 JA |
735 | return NULL; |
736 | } | |
737 | ||
2a1b3424 | 738 | static inline struct trace *trace_rb_find_last(struct per_dev_info *pdi, |
210824c3 | 739 | struct per_cpu_info *pci, |
2a1b3424 JA |
740 | unsigned long seq) |
741 | { | |
210824c3 | 742 | return trace_rb_find(pdi->dev, seq, &pci->rb_last, 0); |
2a1b3424 JA |
743 | } |
744 | ||
f7bd1a9b | 745 | static inline int track_rb_insert(struct per_dev_info *pdi,struct io_track *iot) |
7997c5b0 | 746 | { |
f7bd1a9b | 747 | struct rb_node **p = &pdi->rb_track.rb_node; |
7997c5b0 JA |
748 | struct rb_node *parent = NULL; |
749 | struct io_track *__iot; | |
750 | ||
751 | while (*p) { | |
752 | parent = *p; | |
7997c5b0 JA |
753 | __iot = rb_entry(parent, struct io_track, rb_node); |
754 | ||
f7bd1a9b | 755 | if (iot->sector < __iot->sector) |
7997c5b0 JA |
756 | p = &(*p)->rb_left; |
757 | else if (iot->sector > __iot->sector) | |
758 | p = &(*p)->rb_right; | |
759 | else { | |
e7c9f3ff | 760 | fprintf(stderr, |
ab197ca7 AB |
761 | "sector alias (%Lu) on device %d,%d!\n", |
762 | (unsigned long long) iot->sector, | |
f7bd1a9b | 763 | MAJOR(pdi->dev), MINOR(pdi->dev)); |
7997c5b0 JA |
764 | return 1; |
765 | } | |
766 | } | |
767 | ||
768 | rb_link_node(&iot->rb_node, parent, p); | |
f7bd1a9b | 769 | rb_insert_color(&iot->rb_node, &pdi->rb_track); |
7997c5b0 JA |
770 | return 0; |
771 | } | |
772 | ||
f7bd1a9b | 773 | static struct io_track *__find_track(struct per_dev_info *pdi, __u64 sector) |
7997c5b0 | 774 | { |
f7bd1a9b | 775 | struct rb_node *n = pdi->rb_track.rb_node; |
7997c5b0 JA |
776 | struct io_track *__iot; |
777 | ||
2a1b3424 JA |
778 | while (n) { |
779 | __iot = rb_entry(n, struct io_track, rb_node); | |
7997c5b0 | 780 | |
f7bd1a9b | 781 | if (sector < __iot->sector) |
2a1b3424 | 782 | n = n->rb_left; |
7997c5b0 | 783 | else if (sector > __iot->sector) |
2a1b3424 | 784 | n = n->rb_right; |
7997c5b0 JA |
785 | else |
786 | return __iot; | |
787 | } | |
788 | ||
789 | return NULL; | |
790 | } | |
791 | ||
f7bd1a9b JA |
792 | static struct io_track *find_track(struct per_dev_info *pdi, __u32 pid, |
793 | char *comm, __u64 sector) | |
7997c5b0 | 794 | { |
916b5501 | 795 | struct io_track *iot; |
7997c5b0 | 796 | |
f7bd1a9b | 797 | iot = __find_track(pdi, sector); |
7997c5b0 JA |
798 | if (!iot) { |
799 | iot = malloc(sizeof(*iot)); | |
50adc0ba | 800 | iot->pid = pid; |
bf0720af | 801 | memcpy(iot->comm, comm, sizeof(iot->comm)); |
7997c5b0 | 802 | iot->sector = sector; |
f7bd1a9b | 803 | track_rb_insert(pdi, iot); |
7997c5b0 JA |
804 | } |
805 | ||
806 | return iot; | |
807 | } | |
808 | ||
f7bd1a9b JA |
809 | static void log_track_frontmerge(struct per_dev_info *pdi, |
810 | struct blk_io_trace *t) | |
2e3e8ded JA |
811 | { |
812 | struct io_track *iot; | |
813 | ||
814 | if (!track_ios) | |
815 | return; | |
2e3e8ded | 816 | |
ae957cbc | 817 | iot = __find_track(pdi, t->sector + t_sec(t)); |
cb2a1a62 | 818 | if (!iot) { |
57ea8602 JA |
819 | if (verbose) |
820 | fprintf(stderr, "merge not found for (%d,%d): %llu\n", | |
821 | MAJOR(pdi->dev), MINOR(pdi->dev), | |
822 | (unsigned long long) t->sector + t_sec(t)); | |
cb2a1a62 | 823 | return; |
2e3e8ded | 824 | } |
cb2a1a62 | 825 | |
f7bd1a9b | 826 | rb_erase(&iot->rb_node, &pdi->rb_track); |
ae957cbc | 827 | iot->sector -= t_sec(t); |
f7bd1a9b | 828 | track_rb_insert(pdi, iot); |
2e3e8ded JA |
829 | } |
830 | ||
f7bd1a9b | 831 | static void log_track_getrq(struct per_dev_info *pdi, struct blk_io_trace *t) |
2e3e8ded JA |
832 | { |
833 | struct io_track *iot; | |
834 | ||
835 | if (!track_ios) | |
836 | return; | |
837 | ||
f7bd1a9b | 838 | iot = find_track(pdi, t->pid, t->comm, t->sector); |
95c15013 JA |
839 | iot->allocation_time = t->time; |
840 | } | |
841 | ||
95c15013 | 842 | /* |
b6076a9b | 843 | * return time between rq allocation and insertion |
95c15013 | 844 | */ |
f7bd1a9b JA |
845 | static unsigned long long log_track_insert(struct per_dev_info *pdi, |
846 | struct blk_io_trace *t) | |
95c15013 | 847 | { |
50adc0ba | 848 | unsigned long long elapsed; |
95c15013 JA |
849 | struct io_track *iot; |
850 | ||
851 | if (!track_ios) | |
852 | return -1; | |
853 | ||
f7bd1a9b | 854 | iot = find_track(pdi, t->pid, t->comm, t->sector); |
2e3e8ded | 855 | iot->queue_time = t->time; |
acd70d21 JA |
856 | |
857 | if (!iot->allocation_time) | |
858 | return -1; | |
859 | ||
50adc0ba JA |
860 | elapsed = iot->queue_time - iot->allocation_time; |
861 | ||
862 | if (per_process_stats) { | |
bf0720af | 863 | struct per_process_info *ppi = find_process(iot->pid,iot->comm); |
b9d40d6f | 864 | int w = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; |
50adc0ba | 865 | |
b9d40d6f JA |
866 | if (ppi && elapsed > ppi->longest_allocation_wait[w]) |
867 | ppi->longest_allocation_wait[w] = elapsed; | |
50adc0ba JA |
868 | } |
869 | ||
870 | return elapsed; | |
2e3e8ded JA |
871 | } |
872 | ||
873 | /* | |
874 | * return time between queue and issue | |
875 | */ | |
f7bd1a9b JA |
876 | static unsigned long long log_track_issue(struct per_dev_info *pdi, |
877 | struct blk_io_trace *t) | |
2e3e8ded | 878 | { |
50adc0ba | 879 | unsigned long long elapsed; |
2e3e8ded JA |
880 | struct io_track *iot; |
881 | ||
882 | if (!track_ios) | |
883 | return -1; | |
884 | if ((t->action & BLK_TC_ACT(BLK_TC_FS)) == 0) | |
885 | return -1; | |
886 | ||
f7bd1a9b | 887 | iot = __find_track(pdi, t->sector); |
cb2a1a62 | 888 | if (!iot) { |
57ea8602 JA |
889 | if (verbose) |
890 | fprintf(stderr, "issue not found for (%d,%d): %llu\n", | |
891 | MAJOR(pdi->dev), MINOR(pdi->dev), | |
892 | (unsigned long long) t->sector); | |
2e3e8ded | 893 | return -1; |
cb2a1a62 | 894 | } |
2e3e8ded JA |
895 | |
896 | iot->dispatch_time = t->time; | |
50adc0ba JA |
897 | elapsed = iot->dispatch_time - iot->queue_time; |
898 | ||
899 | if (per_process_stats) { | |
bf0720af | 900 | struct per_process_info *ppi = find_process(iot->pid,iot->comm); |
b9d40d6f | 901 | int w = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; |
50adc0ba | 902 | |
b9d40d6f JA |
903 | if (ppi && elapsed > ppi->longest_dispatch_wait[w]) |
904 | ppi->longest_dispatch_wait[w] = elapsed; | |
50adc0ba JA |
905 | } |
906 | ||
907 | return elapsed; | |
2e3e8ded JA |
908 | } |
909 | ||
910 | /* | |
911 | * return time between dispatch and complete | |
912 | */ | |
f7bd1a9b JA |
913 | static unsigned long long log_track_complete(struct per_dev_info *pdi, |
914 | struct blk_io_trace *t) | |
2e3e8ded JA |
915 | { |
916 | unsigned long long elapsed; | |
917 | struct io_track *iot; | |
918 | ||
919 | if (!track_ios) | |
920 | return -1; | |
921 | if ((t->action & BLK_TC_ACT(BLK_TC_FS)) == 0) | |
922 | return -1; | |
923 | ||
f7bd1a9b | 924 | iot = __find_track(pdi, t->sector); |
cb2a1a62 | 925 | if (!iot) { |
57ea8602 JA |
926 | if (verbose) |
927 | fprintf(stderr,"complete not found for (%d,%d): %llu\n", | |
928 | MAJOR(pdi->dev), MINOR(pdi->dev), | |
929 | (unsigned long long) t->sector); | |
2e3e8ded | 930 | return -1; |
cb2a1a62 | 931 | } |
2e3e8ded JA |
932 | |
933 | iot->completion_time = t->time; | |
934 | elapsed = iot->completion_time - iot->dispatch_time; | |
935 | ||
50adc0ba | 936 | if (per_process_stats) { |
bf0720af | 937 | struct per_process_info *ppi = find_process(iot->pid,iot->comm); |
b9d40d6f | 938 | int w = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; |
50adc0ba | 939 | |
b9d40d6f JA |
940 | if (ppi && elapsed > ppi->longest_completion_wait[w]) |
941 | ppi->longest_completion_wait[w] = elapsed; | |
50adc0ba JA |
942 | } |
943 | ||
2e3e8ded JA |
944 | /* |
945 | * kill the trace, we don't need it after completion | |
946 | */ | |
f7bd1a9b | 947 | rb_erase(&iot->rb_node, &pdi->rb_track); |
2e3e8ded JA |
948 | free(iot); |
949 | ||
950 | return elapsed; | |
951 | } | |
952 | ||
953 | ||
152f6476 JA |
954 | static struct io_stats *find_process_io_stats(__u32 pid, char *name) |
955 | { | |
bf0720af | 956 | struct per_process_info *ppi = find_process(pid, name); |
152f6476 JA |
957 | |
958 | if (!ppi) { | |
959 | ppi = malloc(sizeof(*ppi)); | |
960 | memset(ppi, 0, sizeof(*ppi)); | |
bf0720af | 961 | memcpy(ppi->name, name, 16); |
152f6476 JA |
962 | ppi->pid = pid; |
963 | add_process_to_hash(ppi); | |
964 | add_process_to_list(ppi); | |
965 | } | |
966 | ||
967 | return &ppi->io_stats; | |
968 | } | |
969 | ||
e7c9f3ff NS |
970 | static char *get_dev_name(struct per_dev_info *pdi, char *buffer, int size) |
971 | { | |
972 | if (pdi->name) | |
973 | snprintf(buffer, size, "%s", pdi->name); | |
974 | else | |
f7bd1a9b | 975 | snprintf(buffer, size, "%d,%d",MAJOR(pdi->dev),MINOR(pdi->dev)); |
e7c9f3ff NS |
976 | return buffer; |
977 | } | |
978 | ||
e7c9f3ff | 979 | static void check_time(struct per_dev_info *pdi, struct blk_io_trace *bit) |
cfab07eb AB |
980 | { |
981 | unsigned long long this = bit->time; | |
e7c9f3ff | 982 | unsigned long long last = pdi->last_reported_time; |
cfab07eb | 983 | |
e7c9f3ff NS |
984 | pdi->backwards = (this < last) ? 'B' : ' '; |
985 | pdi->last_reported_time = this; | |
cfab07eb AB |
986 | } |
987 | ||
152f6476 JA |
988 | static inline void __account_m(struct io_stats *ios, struct blk_io_trace *t, |
989 | int rw) | |
d0ca268b JA |
990 | { |
991 | if (rw) { | |
152f6476 | 992 | ios->mwrites++; |
ae957cbc | 993 | ios->qwrite_kb += t_kb(t); |
d0ca268b | 994 | } else { |
152f6476 | 995 | ios->mreads++; |
ae957cbc | 996 | ios->qread_kb += t_kb(t); |
152f6476 JA |
997 | } |
998 | } | |
999 | ||
1000 | static inline void account_m(struct blk_io_trace *t, struct per_cpu_info *pci, | |
1001 | int rw) | |
1002 | { | |
1003 | __account_m(&pci->io_stats, t, rw); | |
1004 | ||
1005 | if (per_process_stats) { | |
1006 | struct io_stats *ios = find_process_io_stats(t->pid, t->comm); | |
1007 | ||
1008 | __account_m(ios, t, rw); | |
d0ca268b JA |
1009 | } |
1010 | } | |
1011 | ||
b6076a9b JA |
1012 | static inline void __account_queue(struct io_stats *ios, struct blk_io_trace *t, |
1013 | int rw) | |
d0ca268b JA |
1014 | { |
1015 | if (rw) { | |
152f6476 | 1016 | ios->qwrites++; |
ae957cbc | 1017 | ios->qwrite_kb += t_kb(t); |
d0ca268b | 1018 | } else { |
152f6476 | 1019 | ios->qreads++; |
ae957cbc | 1020 | ios->qread_kb += t_kb(t); |
152f6476 JA |
1021 | } |
1022 | } | |
1023 | ||
b6076a9b JA |
1024 | static inline void account_queue(struct blk_io_trace *t, |
1025 | struct per_cpu_info *pci, int rw) | |
152f6476 | 1026 | { |
b6076a9b | 1027 | __account_queue(&pci->io_stats, t, rw); |
152f6476 JA |
1028 | |
1029 | if (per_process_stats) { | |
1030 | struct io_stats *ios = find_process_io_stats(t->pid, t->comm); | |
1031 | ||
b6076a9b | 1032 | __account_queue(ios, t, rw); |
d0ca268b JA |
1033 | } |
1034 | } | |
1035 | ||
e21dc4dd | 1036 | static inline void __account_c(struct io_stats *ios, int rw, int bytes) |
d0ca268b JA |
1037 | { |
1038 | if (rw) { | |
152f6476 JA |
1039 | ios->cwrites++; |
1040 | ios->cwrite_kb += bytes >> 10; | |
d0ca268b | 1041 | } else { |
152f6476 JA |
1042 | ios->creads++; |
1043 | ios->cread_kb += bytes >> 10; | |
1044 | } | |
1045 | } | |
1046 | ||
1047 | static inline void account_c(struct blk_io_trace *t, struct per_cpu_info *pci, | |
1048 | int rw, int bytes) | |
1049 | { | |
1050 | __account_c(&pci->io_stats, rw, bytes); | |
1051 | ||
1052 | if (per_process_stats) { | |
1053 | struct io_stats *ios = find_process_io_stats(t->pid, t->comm); | |
1054 | ||
1055 | __account_c(ios, rw, bytes); | |
d0ca268b JA |
1056 | } |
1057 | } | |
1058 | ||
b6076a9b JA |
1059 | static inline void __account_issue(struct io_stats *ios, int rw, |
1060 | unsigned int bytes) | |
afd2d7ad | 1061 | { |
1062 | if (rw) { | |
152f6476 JA |
1063 | ios->iwrites++; |
1064 | ios->iwrite_kb += bytes >> 10; | |
afd2d7ad | 1065 | } else { |
152f6476 JA |
1066 | ios->ireads++; |
1067 | ios->iread_kb += bytes >> 10; | |
afd2d7ad | 1068 | } |
1069 | } | |
1070 | ||
b6076a9b JA |
1071 | static inline void account_issue(struct blk_io_trace *t, |
1072 | struct per_cpu_info *pci, int rw) | |
d0ca268b | 1073 | { |
b6076a9b | 1074 | __account_issue(&pci->io_stats, rw, t->bytes); |
152f6476 JA |
1075 | |
1076 | if (per_process_stats) { | |
1077 | struct io_stats *ios = find_process_io_stats(t->pid, t->comm); | |
d5396421 | 1078 | |
b6076a9b | 1079 | __account_issue(ios, rw, t->bytes); |
152f6476 JA |
1080 | } |
1081 | } | |
1082 | ||
06639b27 JA |
1083 | static inline void __account_unplug(struct io_stats *ios, int timer) |
1084 | { | |
1085 | if (timer) | |
1086 | ios->timer_unplugs++; | |
1087 | else | |
1088 | ios->io_unplugs++; | |
1089 | } | |
1090 | ||
1091 | static inline void account_unplug(struct blk_io_trace *t, | |
1092 | struct per_cpu_info *pci, int timer) | |
1093 | { | |
1094 | __account_unplug(&pci->io_stats, timer); | |
1095 | ||
1096 | if (per_process_stats) { | |
1097 | struct io_stats *ios = find_process_io_stats(t->pid, t->comm); | |
1098 | ||
1099 | __account_unplug(ios, timer); | |
1100 | } | |
1101 | } | |
1102 | ||
4054070a JA |
1103 | static inline void __account_requeue(struct io_stats *ios, |
1104 | struct blk_io_trace *t, int rw) | |
1105 | { | |
1106 | if (rw) { | |
1107 | ios->wrqueue++; | |
1108 | ios->iwrite_kb -= t_kb(t); | |
1109 | } else { | |
1110 | ios->rrqueue++; | |
1111 | ios->iread_kb -= t_kb(t); | |
1112 | } | |
1113 | } | |
1114 | ||
1115 | static inline void account_requeue(struct blk_io_trace *t, | |
1116 | struct per_cpu_info *pci, int rw) | |
1117 | { | |
1118 | __account_requeue(&pci->io_stats, t, rw); | |
1119 | ||
1120 | if (per_process_stats) { | |
1121 | struct io_stats *ios = find_process_io_stats(t->pid, t->comm); | |
1122 | ||
1123 | __account_requeue(ios, t, rw); | |
1124 | } | |
1125 | } | |
1126 | ||
f7bd1a9b JA |
1127 | static void log_complete(struct per_dev_info *pdi, struct per_cpu_info *pci, |
1128 | struct blk_io_trace *t, char *act) | |
ab197ca7 | 1129 | { |
f7bd1a9b | 1130 | process_fmt(act, pci, t, log_track_complete(pdi, t), 0, NULL); |
ab197ca7 AB |
1131 | } |
1132 | ||
f7bd1a9b JA |
1133 | static void log_insert(struct per_dev_info *pdi, struct per_cpu_info *pci, |
1134 | struct blk_io_trace *t, char *act) | |
b6076a9b | 1135 | { |
f7bd1a9b | 1136 | process_fmt(act, pci, t, log_track_insert(pdi, t), 0, NULL); |
b6076a9b JA |
1137 | } |
1138 | ||
ab197ca7 AB |
1139 | static void log_queue(struct per_cpu_info *pci, struct blk_io_trace *t, |
1140 | char *act) | |
1141 | { | |
b6076a9b | 1142 | process_fmt(act, pci, t, -1, 0, NULL); |
ab197ca7 | 1143 | } |
2e3e8ded | 1144 | |
f7bd1a9b JA |
1145 | static void log_issue(struct per_dev_info *pdi, struct per_cpu_info *pci, |
1146 | struct blk_io_trace *t, char *act) | |
ab197ca7 | 1147 | { |
f7bd1a9b | 1148 | process_fmt(act, pci, t, log_track_issue(pdi, t), 0, NULL); |
d0ca268b JA |
1149 | } |
1150 | ||
f7bd1a9b JA |
1151 | static void log_merge(struct per_dev_info *pdi, struct per_cpu_info *pci, |
1152 | struct blk_io_trace *t, char *act) | |
d0ca268b | 1153 | { |
a01516de | 1154 | if (act[0] == 'F') |
f7bd1a9b | 1155 | log_track_frontmerge(pdi, t); |
2e3e8ded | 1156 | |
ab197ca7 | 1157 | process_fmt(act, pci, t, -1ULL, 0, NULL); |
d0ca268b JA |
1158 | } |
1159 | ||
dfe34da1 | 1160 | static void log_action(struct per_cpu_info *pci, struct blk_io_trace *t, |
3639a11e | 1161 | char *act) |
dfe34da1 | 1162 | { |
ab197ca7 | 1163 | process_fmt(act, pci, t, -1ULL, 0, NULL); |
dfe34da1 JA |
1164 | } |
1165 | ||
d5396421 | 1166 | static void log_generic(struct per_cpu_info *pci, struct blk_io_trace *t, |
3639a11e | 1167 | char *act) |
d0ca268b | 1168 | { |
ab197ca7 | 1169 | process_fmt(act, pci, t, -1ULL, 0, NULL); |
d0ca268b JA |
1170 | } |
1171 | ||
ab197ca7 | 1172 | static void log_unplug(struct per_cpu_info *pci, struct blk_io_trace *t, |
3639a11e | 1173 | char *act) |
67e14fdc | 1174 | { |
ab197ca7 | 1175 | process_fmt(act, pci, t, -1ULL, 0, NULL); |
67e14fdc JA |
1176 | } |
1177 | ||
93f1c611 JA |
1178 | static void log_split(struct per_cpu_info *pci, struct blk_io_trace *t, |
1179 | char *act) | |
1180 | { | |
1181 | process_fmt(act, pci, t, -1ULL, 0, NULL); | |
1182 | } | |
1183 | ||
ab197ca7 | 1184 | static void log_pc(struct per_cpu_info *pci, struct blk_io_trace *t, char *act) |
d0ca268b | 1185 | { |
ab197ca7 | 1186 | unsigned char *buf = (unsigned char *) t + sizeof(*t); |
d0ca268b | 1187 | |
ab197ca7 | 1188 | process_fmt(act, pci, t, -1ULL, t->pdu_len, buf); |
d0ca268b JA |
1189 | } |
1190 | ||
ff3a732c | 1191 | static void dump_trace_pc(struct blk_io_trace *t, struct per_cpu_info *pci) |
d0ca268b | 1192 | { |
56f2af81 JA |
1193 | int act = t->action & 0xffff; |
1194 | ||
1195 | switch (act) { | |
d0ca268b | 1196 | case __BLK_TA_QUEUE: |
3639a11e | 1197 | log_generic(pci, t, "Q"); |
d0ca268b JA |
1198 | break; |
1199 | case __BLK_TA_GETRQ: | |
3639a11e | 1200 | log_generic(pci, t, "G"); |
d0ca268b JA |
1201 | break; |
1202 | case __BLK_TA_SLEEPRQ: | |
3639a11e | 1203 | log_generic(pci, t, "S"); |
d0ca268b JA |
1204 | break; |
1205 | case __BLK_TA_REQUEUE: | |
3639a11e | 1206 | log_generic(pci, t, "R"); |
d0ca268b JA |
1207 | break; |
1208 | case __BLK_TA_ISSUE: | |
ab197ca7 | 1209 | log_pc(pci, t, "D"); |
d0ca268b JA |
1210 | break; |
1211 | case __BLK_TA_COMPLETE: | |
3639a11e | 1212 | log_pc(pci, t, "C"); |
d0ca268b | 1213 | break; |
56f2af81 JA |
1214 | case __BLK_TA_INSERT: |
1215 | log_pc(pci, t, "I"); | |
1216 | break; | |
d0ca268b | 1217 | default: |
56f2af81 | 1218 | fprintf(stderr, "Bad pc action %x\n", act); |
87b72777 | 1219 | break; |
d0ca268b | 1220 | } |
d0ca268b JA |
1221 | } |
1222 | ||
f7bd1a9b JA |
1223 | static void dump_trace_fs(struct blk_io_trace *t, struct per_dev_info *pdi, |
1224 | struct per_cpu_info *pci) | |
d0ca268b | 1225 | { |
649c7b66 | 1226 | int w = (t->action & BLK_TC_ACT(BLK_TC_WRITE)) != 0; |
7997c5b0 | 1227 | int act = t->action & 0xffff; |
d0ca268b | 1228 | |
7997c5b0 | 1229 | switch (act) { |
d0ca268b | 1230 | case __BLK_TA_QUEUE: |
b6076a9b | 1231 | account_queue(t, pci, w); |
3639a11e | 1232 | log_queue(pci, t, "Q"); |
d0ca268b | 1233 | break; |
b6076a9b | 1234 | case __BLK_TA_INSERT: |
f7bd1a9b | 1235 | log_insert(pdi, pci, t, "I"); |
b6076a9b | 1236 | break; |
d0ca268b | 1237 | case __BLK_TA_BACKMERGE: |
152f6476 | 1238 | account_m(t, pci, w); |
f7bd1a9b | 1239 | log_merge(pdi, pci, t, "M"); |
d0ca268b JA |
1240 | break; |
1241 | case __BLK_TA_FRONTMERGE: | |
152f6476 | 1242 | account_m(t, pci, w); |
f7bd1a9b | 1243 | log_merge(pdi, pci, t, "F"); |
d0ca268b JA |
1244 | break; |
1245 | case __BLK_TA_GETRQ: | |
f7bd1a9b | 1246 | log_track_getrq(pdi, t); |
3639a11e | 1247 | log_generic(pci, t, "G"); |
d0ca268b JA |
1248 | break; |
1249 | case __BLK_TA_SLEEPRQ: | |
3639a11e | 1250 | log_generic(pci, t, "S"); |
d0ca268b JA |
1251 | break; |
1252 | case __BLK_TA_REQUEUE: | |
65f2deb5 JA |
1253 | /* |
1254 | * can happen if we miss traces, don't let it go | |
1255 | * below zero | |
1256 | */ | |
1257 | if (pdi->cur_depth[w]) | |
1258 | pdi->cur_depth[w]--; | |
4054070a | 1259 | account_requeue(t, pci, w); |
3639a11e | 1260 | log_queue(pci, t, "R"); |
d0ca268b JA |
1261 | break; |
1262 | case __BLK_TA_ISSUE: | |
b6076a9b | 1263 | account_issue(t, pci, w); |
649c7b66 JA |
1264 | pdi->cur_depth[w]++; |
1265 | if (pdi->cur_depth[w] > pdi->max_depth[w]) | |
1266 | pdi->max_depth[w] = pdi->cur_depth[w]; | |
f7bd1a9b | 1267 | log_issue(pdi, pci, t, "D"); |
d0ca268b JA |
1268 | break; |
1269 | case __BLK_TA_COMPLETE: | |
65f2deb5 JA |
1270 | if (pdi->cur_depth[w]) |
1271 | pdi->cur_depth[w]--; | |
152f6476 | 1272 | account_c(t, pci, w, t->bytes); |
f7bd1a9b | 1273 | log_complete(pdi, pci, t, "C"); |
d0ca268b | 1274 | break; |
88b1a526 | 1275 | case __BLK_TA_PLUG: |
3639a11e | 1276 | log_action(pci, t, "P"); |
88b1a526 | 1277 | break; |
3639a11e | 1278 | case __BLK_TA_UNPLUG_IO: |
06639b27 | 1279 | account_unplug(t, pci, 0); |
3639a11e JA |
1280 | log_unplug(pci, t, "U"); |
1281 | break; | |
1282 | case __BLK_TA_UNPLUG_TIMER: | |
06639b27 | 1283 | account_unplug(t, pci, 1); |
3639a11e | 1284 | log_unplug(pci, t, "UT"); |
88b1a526 | 1285 | break; |
93f1c611 JA |
1286 | case __BLK_TA_SPLIT: |
1287 | log_split(pci, t, "X"); | |
1288 | break; | |
1289 | case __BLK_TA_BOUNCE: | |
1290 | log_generic(pci, t, "B"); | |
1291 | break; | |
a8f30e64 JA |
1292 | case __BLK_TA_REMAP: |
1293 | log_generic(pci, t, "A"); | |
1294 | break; | |
d0ca268b JA |
1295 | default: |
1296 | fprintf(stderr, "Bad fs action %x\n", t->action); | |
1f79c4a0 | 1297 | break; |
d0ca268b | 1298 | } |
d0ca268b JA |
1299 | } |
1300 | ||
ff3a732c JA |
1301 | static void dump_trace(struct blk_io_trace *t, struct per_cpu_info *pci, |
1302 | struct per_dev_info *pdi) | |
d0ca268b JA |
1303 | { |
1304 | if (t->action & BLK_TC_ACT(BLK_TC_PC)) | |
ff3a732c | 1305 | dump_trace_pc(t, pci); |
d0ca268b | 1306 | else |
f7bd1a9b | 1307 | dump_trace_fs(t, pdi, pci); |
87b72777 | 1308 | |
20ed6177 JA |
1309 | if (!pdi->events) |
1310 | pdi->first_reported_time = t->time; | |
1311 | ||
e7c9f3ff | 1312 | pdi->events++; |
d0ca268b JA |
1313 | } |
1314 | ||
4c523165 JA |
1315 | /* |
1316 | * print in a proper way, not too small and not too big. if more than | |
1317 | * 1000,000K, turn into M and so on | |
1318 | */ | |
1319 | static char *size_cnv(char *dst, unsigned long long num, int in_kb) | |
1320 | { | |
da19e768 | 1321 | char suff[] = { '\0', 'K', 'M', 'G', 'P' }; |
0dc3602c | 1322 | unsigned int i = 0; |
4c523165 JA |
1323 | |
1324 | if (in_kb) | |
1325 | i++; | |
1326 | ||
0dc3602c | 1327 | while (num > 1000 * 1000ULL && (i < sizeof(suff) - 1)) { |
4c523165 JA |
1328 | i++; |
1329 | num /= 1000; | |
1330 | } | |
1331 | ||
1332 | sprintf(dst, "%'8Lu%c", num, suff[i]); | |
1333 | return dst; | |
1334 | } | |
1335 | ||
649c7b66 JA |
1336 | static void dump_io_stats(struct per_dev_info *pdi, struct io_stats *ios, |
1337 | char *msg) | |
5c017e4b | 1338 | { |
4c523165 JA |
1339 | static char x[256], y[256]; |
1340 | ||
152f6476 JA |
1341 | fprintf(ofp, "%s\n", msg); |
1342 | ||
4c523165 JA |
1343 | fprintf(ofp, " Reads Queued: %s, %siB\t", size_cnv(x, ios->qreads, 0), size_cnv(y, ios->qread_kb, 1)); |
1344 | fprintf(ofp, " Writes Queued: %s, %siB\n", size_cnv(x, ios->qwrites, 0), size_cnv(y, ios->qwrite_kb, 1)); | |
0a6b8fc4 | 1345 | |
4c523165 JA |
1346 | fprintf(ofp, " Read Dispatches: %s, %siB\t", size_cnv(x, ios->ireads, 0), size_cnv(y, ios->iread_kb, 1)); |
1347 | fprintf(ofp, " Write Dispatches: %s, %siB\n", size_cnv(x, ios->iwrites, 0), size_cnv(y, ios->iwrite_kb, 1)); | |
4054070a JA |
1348 | fprintf(ofp, " Reads Requeued: %s\t\t", size_cnv(x, ios->rrqueue, 0)); |
1349 | fprintf(ofp, " Writes Requeued: %s\n", size_cnv(x, ios->wrqueue, 0)); | |
4c523165 JA |
1350 | fprintf(ofp, " Reads Completed: %s, %siB\t", size_cnv(x, ios->creads, 0), size_cnv(y, ios->cread_kb, 1)); |
1351 | fprintf(ofp, " Writes Completed: %s, %siB\n", size_cnv(x, ios->cwrites, 0), size_cnv(y, ios->cwrite_kb, 1)); | |
152f6476 | 1352 | fprintf(ofp, " Read Merges: %'8lu%8c\t", ios->mreads, ' '); |
152f6476 | 1353 | fprintf(ofp, " Write Merges: %'8lu\n", ios->mwrites); |
649c7b66 JA |
1354 | if (pdi) { |
1355 | fprintf(ofp, " Read depth: %'8u%8c\t", pdi->max_depth[0], ' '); | |
1356 | fprintf(ofp, " Write depth: %'8u\n", pdi->max_depth[1]); | |
1357 | } | |
06639b27 JA |
1358 | fprintf(ofp, " IO unplugs: %'8lu%8c\t", ios->io_unplugs, ' '); |
1359 | fprintf(ofp, " Timer unplugs: %'8lu\n", ios->timer_unplugs); | |
5c017e4b JA |
1360 | } |
1361 | ||
50adc0ba JA |
1362 | static void dump_wait_stats(struct per_process_info *ppi) |
1363 | { | |
b9d40d6f JA |
1364 | unsigned long rawait = ppi->longest_allocation_wait[0] / 1000; |
1365 | unsigned long rdwait = ppi->longest_dispatch_wait[0] / 1000; | |
1366 | unsigned long rcwait = ppi->longest_completion_wait[0] / 1000; | |
1367 | unsigned long wawait = ppi->longest_allocation_wait[1] / 1000; | |
1368 | unsigned long wdwait = ppi->longest_dispatch_wait[1] / 1000; | |
1369 | unsigned long wcwait = ppi->longest_completion_wait[1] / 1000; | |
1370 | ||
1371 | fprintf(ofp, " Allocation wait: %'8lu%8c\t", rawait, ' '); | |
1372 | fprintf(ofp, " Allocation wait: %'8lu\n", wawait); | |
1373 | fprintf(ofp, " Dispatch wait: %'8lu%8c\t", rdwait, ' '); | |
1374 | fprintf(ofp, " Dispatch wait: %'8lu\n", wdwait); | |
1375 | fprintf(ofp, " Completion wait: %'8lu%8c\t", rcwait, ' '); | |
1376 | fprintf(ofp, " Completion wait: %'8lu\n", wcwait); | |
50adc0ba JA |
1377 | } |
1378 | ||
886ecf0e JA |
1379 | static int ppi_name_compare(const void *p1, const void *p2) |
1380 | { | |
1381 | struct per_process_info *ppi1 = *((struct per_process_info **) p1); | |
1382 | struct per_process_info *ppi2 = *((struct per_process_info **) p2); | |
1383 | int res; | |
1384 | ||
1385 | res = strverscmp(ppi1->name, ppi2->name); | |
1386 | if (!res) | |
06e6f286 | 1387 | res = ppi1->pid > ppi2->pid; |
886ecf0e JA |
1388 | |
1389 | return res; | |
1390 | } | |
1391 | ||
1392 | static void sort_process_list(void) | |
1393 | { | |
1394 | struct per_process_info **ppis; | |
1395 | struct per_process_info *ppi; | |
1396 | int i = 0; | |
1397 | ||
1398 | ppis = malloc(ppi_list_entries * sizeof(struct per_process_info *)); | |
1399 | ||
1400 | ppi = ppi_list; | |
1401 | while (ppi) { | |
06e6f286 | 1402 | ppis[i++] = ppi; |
886ecf0e JA |
1403 | ppi = ppi->list_next; |
1404 | } | |
1405 | ||
06e6f286 | 1406 | qsort(ppis, ppi_list_entries, sizeof(ppi), ppi_name_compare); |
886ecf0e JA |
1407 | |
1408 | i = ppi_list_entries - 1; | |
1409 | ppi_list = NULL; | |
1410 | while (i >= 0) { | |
1411 | ppi = ppis[i]; | |
1412 | ||
1413 | ppi->list_next = ppi_list; | |
1414 | ppi_list = ppi; | |
1415 | i--; | |
1416 | } | |
50c38702 JA |
1417 | |
1418 | free(ppis); | |
886ecf0e JA |
1419 | } |
1420 | ||
152f6476 JA |
1421 | static void show_process_stats(void) |
1422 | { | |
1423 | struct per_process_info *ppi; | |
1424 | ||
886ecf0e JA |
1425 | sort_process_list(); |
1426 | ||
152f6476 JA |
1427 | ppi = ppi_list; |
1428 | while (ppi) { | |
ce8b6b4f JA |
1429 | char name[64]; |
1430 | ||
715d8021 | 1431 | if (ppi->more_than_one) |
bf0720af | 1432 | sprintf(name, "%s (%u, ...)", ppi->name, ppi->pid); |
715d8021 JA |
1433 | else |
1434 | sprintf(name, "%s (%u)", ppi->name, ppi->pid); | |
bf0720af | 1435 | |
649c7b66 | 1436 | dump_io_stats(NULL, &ppi->io_stats, name); |
50adc0ba | 1437 | dump_wait_stats(ppi); |
152f6476 JA |
1438 | ppi = ppi->list_next; |
1439 | } | |
1440 | ||
1441 | fprintf(ofp, "\n"); | |
1442 | } | |
1443 | ||
e7c9f3ff | 1444 | static void show_device_and_cpu_stats(void) |
d0ca268b | 1445 | { |
e7c9f3ff NS |
1446 | struct per_dev_info *pdi; |
1447 | struct per_cpu_info *pci; | |
1448 | struct io_stats total, *ios; | |
20ed6177 | 1449 | unsigned long long rrate, wrate, msec; |
e7c9f3ff NS |
1450 | int i, j, pci_events; |
1451 | char line[3 + 8/*cpu*/ + 2 + 32/*dev*/ + 3]; | |
1452 | char name[32]; | |
1453 | ||
1454 | for (pdi = devices, i = 0; i < ndevices; i++, pdi++) { | |
1455 | ||
1456 | memset(&total, 0, sizeof(total)); | |
1457 | pci_events = 0; | |
1458 | ||
1459 | if (i > 0) | |
1460 | fprintf(ofp, "\n"); | |
1461 | ||
1462 | for (pci = pdi->cpus, j = 0; j < pdi->ncpus; j++, pci++) { | |
1463 | if (!pci->nelems) | |
1464 | continue; | |
1465 | ||
1466 | ios = &pci->io_stats; | |
1467 | total.qreads += ios->qreads; | |
1468 | total.qwrites += ios->qwrites; | |
1469 | total.creads += ios->creads; | |
1470 | total.cwrites += ios->cwrites; | |
1471 | total.mreads += ios->mreads; | |
1472 | total.mwrites += ios->mwrites; | |
1473 | total.ireads += ios->ireads; | |
1474 | total.iwrites += ios->iwrites; | |
4054070a JA |
1475 | total.rrqueue += ios->rrqueue; |
1476 | total.wrqueue += ios->wrqueue; | |
e7c9f3ff NS |
1477 | total.qread_kb += ios->qread_kb; |
1478 | total.qwrite_kb += ios->qwrite_kb; | |
1479 | total.cread_kb += ios->cread_kb; | |
1480 | total.cwrite_kb += ios->cwrite_kb; | |
1481 | total.iread_kb += ios->iread_kb; | |
1482 | total.iwrite_kb += ios->iwrite_kb; | |
06639b27 JA |
1483 | total.timer_unplugs += ios->timer_unplugs; |
1484 | total.io_unplugs += ios->io_unplugs; | |
e7c9f3ff NS |
1485 | |
1486 | snprintf(line, sizeof(line) - 1, "CPU%d (%s):", | |
1487 | j, get_dev_name(pdi, name, sizeof(name))); | |
649c7b66 | 1488 | dump_io_stats(pdi, ios, line); |
e7c9f3ff NS |
1489 | pci_events++; |
1490 | } | |
5c017e4b | 1491 | |
e7c9f3ff NS |
1492 | if (pci_events > 1) { |
1493 | fprintf(ofp, "\n"); | |
1494 | snprintf(line, sizeof(line) - 1, "Total (%s):", | |
1495 | get_dev_name(pdi, name, sizeof(name))); | |
649c7b66 | 1496 | dump_io_stats(NULL, &total, line); |
e7c9f3ff | 1497 | } |
d0ca268b | 1498 | |
20ed6177 | 1499 | wrate = rrate = 0; |
20ed6177 JA |
1500 | msec = (pdi->last_reported_time - pdi->first_reported_time) / 1000000; |
1501 | if (msec) { | |
1502 | rrate = 1000 * total.cread_kb / msec; | |
1503 | wrate = 1000 * total.cwrite_kb / msec; | |
1504 | } | |
1505 | ||
dce0f678 AB |
1506 | fprintf(ofp, "\nThroughput (R/W): %'LuKiB/s / %'LuKiB/s\n", |
1507 | rrate, wrate); | |
1508 | fprintf(ofp, "Events (%s): %'Lu entries\n", | |
1509 | get_dev_name(pdi, line, sizeof(line)), pdi->events); | |
492da111 AB |
1510 | |
1511 | collect_pdi_skips(pdi); | |
1512 | fprintf(ofp, "Skips: %'lu forward (%'llu - %5.1lf%%)\n", | |
dce0f678 AB |
1513 | pdi->skips,pdi->seq_skips, |
1514 | 100.0 * ((double)pdi->seq_skips / | |
dce0f678 | 1515 | (double)(pdi->events + pdi->seq_skips))); |
e7c9f3ff | 1516 | } |
d0ca268b JA |
1517 | } |
1518 | ||
4f0ae44f JA |
1519 | static void find_genesis(void) |
1520 | { | |
1521 | struct trace *t = trace_list; | |
1522 | ||
1523 | genesis_time = -1ULL; | |
1524 | while (t != NULL) { | |
1525 | if (t->bit->time < genesis_time) | |
1526 | genesis_time = t->bit->time; | |
1527 | ||
1528 | t = t->next; | |
1529 | } | |
1530 | } | |
1531 | ||
7f4d89e6 | 1532 | static inline int check_stopwatch(struct blk_io_trace *bit) |
4f0ae44f | 1533 | { |
7f4d89e6 JA |
1534 | if (bit->time < stopwatch_end && |
1535 | bit->time >= stopwatch_start) | |
4f0ae44f JA |
1536 | return 0; |
1537 | ||
1538 | return 1; | |
1539 | } | |
1540 | ||
53c68c88 JA |
1541 | /* |
1542 | * return youngest entry read | |
1543 | */ | |
1544 | static int sort_entries(unsigned long long *youngest) | |
4f0ae44f | 1545 | { |
210824c3 JA |
1546 | struct per_dev_info *pdi = NULL; |
1547 | struct per_cpu_info *pci = NULL; | |
4f0ae44f | 1548 | struct trace *t; |
4f0ae44f JA |
1549 | |
1550 | if (!genesis_time) | |
1551 | find_genesis(); | |
1552 | ||
d6222db8 | 1553 | *youngest = 0; |
4f0ae44f JA |
1554 | while ((t = trace_list) != NULL) { |
1555 | struct blk_io_trace *bit = t->bit; | |
1556 | ||
1557 | trace_list = t->next; | |
1558 | ||
7f4d89e6 | 1559 | bit->time -= genesis_time; |
4f0ae44f | 1560 | |
d6222db8 JA |
1561 | if (bit->time < *youngest || !*youngest) |
1562 | *youngest = bit->time; | |
1563 | ||
210824c3 JA |
1564 | if (!pdi || pdi->dev != bit->device) { |
1565 | pdi = get_dev_info(bit->device); | |
1566 | pci = NULL; | |
1567 | } | |
1568 | ||
1569 | if (!pci || pci->cpu != bit->cpu) | |
1570 | pci = get_cpu_info(pdi, bit->cpu); | |
1571 | ||
1572 | if (bit->sequence < pci->smallest_seq_read) | |
1573 | pci->smallest_seq_read = bit->sequence; | |
774a1a10 | 1574 | |
7f4d89e6 | 1575 | if (check_stopwatch(bit)) { |
4f0ae44f JA |
1576 | bit_free(bit); |
1577 | t_free(t); | |
1578 | continue; | |
1579 | } | |
1580 | ||
2a1b3424 | 1581 | if (trace_rb_insert_sort(t)) |
53c68c88 | 1582 | return -1; |
4f0ae44f JA |
1583 | } |
1584 | ||
53c68c88 | 1585 | return 0; |
4f0ae44f JA |
1586 | } |
1587 | ||
824c2b39 JA |
1588 | /* |
1589 | * to continue, we must have traces from all online cpus in the tree | |
1590 | */ | |
1591 | static int check_cpu_map(struct per_dev_info *pdi) | |
1592 | { | |
1593 | unsigned long *cpu_map; | |
1594 | struct rb_node *n; | |
1595 | struct trace *__t; | |
1596 | unsigned int i; | |
1597 | int ret, cpu; | |
1598 | ||
1599 | /* | |
1600 | * create a map of the cpus we have traces for | |
1601 | */ | |
1602 | cpu_map = malloc(pdi->cpu_map_max / sizeof(long)); | |
1603 | n = rb_first(&rb_sort_root); | |
1604 | while (n) { | |
1605 | __t = rb_entry(n, struct trace, rb_node); | |
1606 | cpu = __t->bit->cpu; | |
1607 | ||
1608 | cpu_map[CPU_IDX(cpu)] |= (1UL << CPU_BIT(cpu)); | |
1609 | n = rb_next(n); | |
1610 | } | |
1611 | ||
1612 | /* | |
b1c8e614 JA |
1613 | * we can't continue if pdi->cpu_map has entries set that we don't |
1614 | * have in the sort rbtree. the opposite is not a problem, though | |
824c2b39 JA |
1615 | */ |
1616 | ret = 0; | |
1617 | for (i = 0; i < pdi->cpu_map_max / CPUS_PER_LONG; i++) { | |
1618 | if (pdi->cpu_map[i] & ~(cpu_map[i])) { | |
1619 | ret = 1; | |
1620 | break; | |
1621 | } | |
1622 | } | |
1623 | ||
1624 | free(cpu_map); | |
1625 | return ret; | |
1626 | } | |
1627 | ||
a141a7cd | 1628 | static int check_sequence(struct per_dev_info *pdi, struct trace *t, int force) |
2a1b3424 | 1629 | { |
1ca323a5 | 1630 | struct blk_io_trace *bit = t->bit; |
210824c3 JA |
1631 | unsigned long expected_sequence; |
1632 | struct per_cpu_info *pci; | |
1ca323a5 | 1633 | struct trace *__t; |
492da111 | 1634 | |
210824c3 JA |
1635 | pci = get_cpu_info(pdi, bit->cpu); |
1636 | expected_sequence = pci->last_sequence + 1; | |
1637 | ||
774a1a10 | 1638 | if (!expected_sequence) { |
774a1a10 JA |
1639 | /* |
1640 | * 1 should be the first entry, just allow it | |
1641 | */ | |
1642 | if (bit->sequence == 1) | |
1643 | return 0; | |
210824c3 | 1644 | if (bit->sequence == pci->smallest_seq_read) |
79ee9704 | 1645 | return 0; |
774a1a10 | 1646 | |
824c2b39 | 1647 | return check_cpu_map(pdi); |
774a1a10 | 1648 | } |
2a1b3424 JA |
1649 | |
1650 | if (bit->sequence == expected_sequence) | |
1651 | return 0; | |
1652 | ||
2a1b3424 | 1653 | /* |
1c7c54aa JA |
1654 | * we may not have seen that sequence yet. if we are not doing |
1655 | * the final run, break and wait for more entries. | |
1c24add6 | 1656 | */ |
210824c3 JA |
1657 | if (expected_sequence < pci->smallest_seq_read) { |
1658 | __t = trace_rb_find_last(pdi, pci, expected_sequence); | |
1ca323a5 | 1659 | if (!__t) |
1c7c54aa | 1660 | goto skip; |
2a1b3424 | 1661 | |
1ca323a5 | 1662 | __put_trace_last(pdi, __t); |
2a1b3424 | 1663 | return 0; |
a141a7cd JA |
1664 | } else if (!force) { |
1665 | return 1; | |
0b07f23e | 1666 | } else { |
1c7c54aa | 1667 | skip: |
66930177 | 1668 | if (check_current_skips(pci, bit->sequence)) |
492da111 AB |
1669 | return 0; |
1670 | ||
965eca2d | 1671 | if (expected_sequence < bit->sequence) |
66930177 | 1672 | insert_skip(pci, expected_sequence, bit->sequence - 1); |
1c7c54aa JA |
1673 | return 0; |
1674 | } | |
2a1b3424 JA |
1675 | } |
1676 | ||
a649216c | 1677 | static void show_entries_rb(int force) |
8fc0abbc | 1678 | { |
1f7afa72 JA |
1679 | struct per_dev_info *pdi = NULL; |
1680 | struct per_cpu_info *pci = NULL; | |
8fc0abbc | 1681 | struct blk_io_trace *bit; |
3aabcd89 | 1682 | struct rb_node *n; |
8fc0abbc | 1683 | struct trace *t; |
1f7afa72 | 1684 | |
7d747d22 | 1685 | while ((n = rb_first(&rb_sort_root)) != NULL) { |
dd90748f | 1686 | if (is_done() && !force && !pipeline) |
1f7afa72 | 1687 | break; |
8fc0abbc JA |
1688 | |
1689 | t = rb_entry(n, struct trace, rb_node); | |
1690 | bit = t->bit; | |
1691 | ||
a43c1c17 JA |
1692 | if (read_sequence - t->read_sequence < 1 && !force) |
1693 | break; | |
1694 | ||
210824c3 | 1695 | if (!pdi || pdi->dev != bit->device) { |
287fa3d6 | 1696 | pdi = get_dev_info(bit->device); |
210824c3 JA |
1697 | pci = NULL; |
1698 | } | |
1f7afa72 | 1699 | |
e7c9f3ff NS |
1700 | if (!pdi) { |
1701 | fprintf(stderr, "Unknown device ID? (%d,%d)\n", | |
1702 | MAJOR(bit->device), MINOR(bit->device)); | |
1703 | break; | |
1704 | } | |
1f7afa72 | 1705 | |
a141a7cd JA |
1706 | if (check_sequence(pdi, t, force)) |
1707 | break; | |
cb2a1a62 | 1708 | |
a141a7cd JA |
1709 | if (!force && bit->time > last_allowed_time) |
1710 | break; | |
8fc0abbc | 1711 | |
4f0ae44f | 1712 | check_time(pdi, bit); |
8fc0abbc | 1713 | |
4f0ae44f JA |
1714 | if (!pci || pci->cpu != bit->cpu) |
1715 | pci = get_cpu_info(pdi, bit->cpu); | |
287fa3d6 | 1716 | |
210824c3 JA |
1717 | pci->last_sequence = bit->sequence; |
1718 | ||
cbc927b6 JA |
1719 | pci->nelems++; |
1720 | ||
66930177 | 1721 | if (bit->action & (act_mask << BLK_TC_SHIFT)) |
98f8386b | 1722 | dump_trace(bit, pci, pdi); |
87b72777 | 1723 | |
2a1b3424 | 1724 | put_trace(pdi, t); |
cb2a1a62 | 1725 | } |
8fc0abbc JA |
1726 | } |
1727 | ||
c0e0dbc2 | 1728 | static int read_data(int fd, void *buffer, int bytes, int block, int *fdblock) |
1f79c4a0 JA |
1729 | { |
1730 | int ret, bytes_left, fl; | |
1731 | void *p; | |
1732 | ||
c0e0dbc2 JA |
1733 | if (block != *fdblock) { |
1734 | fl = fcntl(fd, F_GETFL); | |
1f79c4a0 | 1735 | |
c0e0dbc2 JA |
1736 | if (!block) { |
1737 | *fdblock = 0; | |
1738 | fcntl(fd, F_SETFL, fl | O_NONBLOCK); | |
1739 | } else { | |
1740 | *fdblock = 1; | |
1741 | fcntl(fd, F_SETFL, fl & ~O_NONBLOCK); | |
1742 | } | |
1743 | } | |
1f79c4a0 JA |
1744 | |
1745 | bytes_left = bytes; | |
1746 | p = buffer; | |
1747 | while (bytes_left > 0) { | |
1748 | ret = read(fd, p, bytes_left); | |
1749 | if (!ret) | |
1750 | return 1; | |
1751 | else if (ret < 0) { | |
db7e0552 | 1752 | if (errno != EAGAIN) { |
1f79c4a0 | 1753 | perror("read"); |
db7e0552 JA |
1754 | return -1; |
1755 | } | |
a649216c | 1756 | |
5c0f40f7 JA |
1757 | /* |
1758 | * never do partial reads. we can return if we | |
1759 | * didn't read anything and we should not block, | |
1760 | * otherwise wait for data | |
1761 | */ | |
1762 | if ((bytes_left == bytes) && !block) | |
1763 | return 1; | |
1764 | ||
1765 | usleep(10); | |
1766 | continue; | |
1f79c4a0 JA |
1767 | } else { |
1768 | p += ret; | |
1769 | bytes_left -= ret; | |
1770 | } | |
1771 | } | |
1772 | ||
1773 | return 0; | |
1774 | } | |
1775 | ||
c0e0dbc2 | 1776 | static int read_events(int fd, int always_block, int *fdblock) |
cb2a1a62 | 1777 | { |
287fa3d6 | 1778 | struct per_dev_info *pdi = NULL; |
e820abd7 | 1779 | unsigned int events = 0; |
7d747d22 JA |
1780 | |
1781 | while (!is_done() && events < rb_batch) { | |
1782 | struct blk_io_trace *bit; | |
1783 | struct trace *t; | |
db7e0552 | 1784 | int pdu_len, should_block, ret; |
7d747d22 JA |
1785 | __u32 magic; |
1786 | ||
d36421e4 | 1787 | bit = bit_alloc(); |
cb2a1a62 | 1788 | |
c0e0dbc2 JA |
1789 | should_block = !events || always_block; |
1790 | ||
db7e0552 JA |
1791 | ret = read_data(fd, bit, sizeof(*bit), should_block, fdblock); |
1792 | if (ret) { | |
eb9bd4e9 | 1793 | bit_free(bit); |
db7e0552 JA |
1794 | if (!events && ret < 0) |
1795 | events = ret; | |
cb2a1a62 | 1796 | break; |
eb9bd4e9 | 1797 | } |
cb2a1a62 | 1798 | |
7d747d22 JA |
1799 | magic = be32_to_cpu(bit->magic); |
1800 | if ((magic & 0xffffff00) != BLK_IO_TRACE_MAGIC) { | |
1801 | fprintf(stderr, "Bad magic %x\n", magic); | |
1802 | break; | |
1803 | } | |
1804 | ||
1805 | pdu_len = be16_to_cpu(bit->pdu_len); | |
1806 | if (pdu_len) { | |
1807 | void *ptr = realloc(bit, sizeof(*bit) + pdu_len); | |
1808 | ||
c0e0dbc2 | 1809 | if (read_data(fd, ptr + sizeof(*bit), pdu_len, 1, fdblock)) { |
eb9bd4e9 | 1810 | bit_free(ptr); |
7d747d22 | 1811 | break; |
eb9bd4e9 | 1812 | } |
7d747d22 JA |
1813 | |
1814 | bit = ptr; | |
1815 | } | |
1816 | ||
d6222db8 JA |
1817 | trace_to_cpu(bit); |
1818 | ||
1819 | if (verify_trace(bit)) { | |
1820 | bit_free(bit); | |
1821 | continue; | |
1822 | } | |
1823 | ||
d36421e4 | 1824 | t = t_alloc(); |
cb2a1a62 JA |
1825 | memset(t, 0, sizeof(*t)); |
1826 | t->bit = bit; | |
a43c1c17 | 1827 | t->read_sequence = read_sequence; |
cb2a1a62 | 1828 | |
7d747d22 JA |
1829 | t->next = trace_list; |
1830 | trace_list = t; | |
1f7afa72 | 1831 | |
f7bd1a9b | 1832 | if (!pdi || pdi->dev != bit->device) |
287fa3d6 JA |
1833 | pdi = get_dev_info(bit->device); |
1834 | ||
1835 | if (bit->time > pdi->last_read_time) | |
1836 | pdi->last_read_time = bit->time; | |
1837 | ||
7d747d22 | 1838 | events++; |
cb2a1a62 JA |
1839 | } |
1840 | ||
7d747d22 | 1841 | return events; |
cb2a1a62 JA |
1842 | } |
1843 | ||
d5396421 | 1844 | static int do_file(void) |
d0ca268b | 1845 | { |
7d747d22 | 1846 | struct per_cpu_info *pci; |
73877e12 NS |
1847 | struct per_dev_info *pdi; |
1848 | int i, j, events, events_added; | |
d0ca268b | 1849 | |
7d747d22 JA |
1850 | /* |
1851 | * first prepare all files for reading | |
1852 | */ | |
e8741a4a | 1853 | for (i = 0; i < ndevices; i++) { |
73877e12 NS |
1854 | pdi = &devices[i]; |
1855 | pdi->nfiles = 0; | |
73877e12 | 1856 | |
74feaeb5 | 1857 | for (j = 0;; j++) { |
e7c9f3ff | 1858 | struct stat st; |
d1d7f15f | 1859 | int len = 0; |
6e0073ed | 1860 | char *p, *dname; |
87b72777 | 1861 | |
e7c9f3ff NS |
1862 | pci = get_cpu_info(pdi, j); |
1863 | pci->cpu = j; | |
7d747d22 | 1864 | pci->fd = -1; |
c0e0dbc2 | 1865 | pci->fdblock = -1; |
6e0073ed JA |
1866 | |
1867 | p = strdup(pdi->name); | |
1868 | dname = dirname(p); | |
1869 | if (strcmp(dname, ".")) { | |
1870 | input_dir = dname; | |
1871 | p = strdup(pdi->name); | |
1872 | strcpy(pdi->name, basename(p)); | |
1873 | } | |
1874 | free(p); | |
d0ca268b | 1875 | |
d1d7f15f JA |
1876 | if (input_dir) |
1877 | len = sprintf(pci->fname, "%s/", input_dir); | |
1878 | ||
1879 | snprintf(pci->fname + len, sizeof(pci->fname)-1-len, | |
7d747d22 | 1880 | "%s.blktrace.%d", pdi->name, pci->cpu); |
e7c9f3ff NS |
1881 | if (stat(pci->fname, &st) < 0) |
1882 | break; | |
74feaeb5 AB |
1883 | if (st.st_size) { |
1884 | pci->fd = open(pci->fname, O_RDONLY); | |
1885 | if (pci->fd < 0) { | |
1886 | perror(pci->fname); | |
1887 | continue; | |
1888 | } | |
e7c9f3ff NS |
1889 | } |
1890 | ||
7d747d22 | 1891 | printf("Input file %s added\n", pci->fname); |
73877e12 | 1892 | pdi->nfiles++; |
824c2b39 | 1893 | cpu_mark_online(pdi, pci->cpu); |
d0ca268b | 1894 | } |
d5396421 JA |
1895 | } |
1896 | ||
7d747d22 JA |
1897 | /* |
1898 | * now loop over the files reading in the data | |
1899 | */ | |
412819ce | 1900 | do { |
53c68c88 JA |
1901 | unsigned long long youngest; |
1902 | ||
7d747d22 | 1903 | events_added = 0; |
287fa3d6 | 1904 | last_allowed_time = -1ULL; |
a43c1c17 | 1905 | read_sequence++; |
d5396421 | 1906 | |
7d747d22 | 1907 | for (i = 0; i < ndevices; i++) { |
73877e12 | 1908 | pdi = &devices[i]; |
66930177 | 1909 | pdi->last_read_time = -1ULL; |
73877e12 NS |
1910 | |
1911 | for (j = 0; j < pdi->nfiles; j++) { | |
d5396421 | 1912 | |
73877e12 | 1913 | pci = get_cpu_info(pdi, j); |
d5396421 | 1914 | |
7d747d22 JA |
1915 | if (pci->fd == -1) |
1916 | continue; | |
51128a28 | 1917 | |
210824c3 JA |
1918 | pci->smallest_seq_read = -1; |
1919 | ||
c0e0dbc2 | 1920 | events = read_events(pci->fd, 1, &pci->fdblock); |
db7e0552 | 1921 | if (events <= 0) { |
824c2b39 | 1922 | cpu_mark_offline(pdi, pci->cpu); |
7d747d22 JA |
1923 | close(pci->fd); |
1924 | pci->fd = -1; | |
1925 | continue; | |
1926 | } | |
d5396421 | 1927 | |
287fa3d6 JA |
1928 | if (pdi->last_read_time < last_allowed_time) |
1929 | last_allowed_time = pdi->last_read_time; | |
d5396421 | 1930 | |
7d747d22 JA |
1931 | events_added += events; |
1932 | } | |
2ff323b0 | 1933 | } |
d5396421 | 1934 | |
53c68c88 JA |
1935 | if (sort_entries(&youngest)) |
1936 | break; | |
1937 | ||
1938 | if (youngest > stopwatch_end) | |
287fa3d6 JA |
1939 | break; |
1940 | ||
a649216c | 1941 | show_entries_rb(0); |
cb2a1a62 | 1942 | |
7d747d22 | 1943 | } while (events_added); |
d5396421 | 1944 | |
a649216c JA |
1945 | if (rb_sort_entries) |
1946 | show_entries_rb(1); | |
1947 | ||
7d747d22 | 1948 | return 0; |
412819ce | 1949 | } |
d5396421 | 1950 | |
412819ce JA |
1951 | static int do_stdin(void) |
1952 | { | |
53c68c88 | 1953 | unsigned long long youngest; |
c0e0dbc2 | 1954 | int fd, events, fdblock; |
d5396421 | 1955 | |
be925321 | 1956 | last_allowed_time = -1ULL; |
1f79c4a0 | 1957 | fd = dup(STDIN_FILENO); |
0b07f23e JA |
1958 | if (fd == -1) { |
1959 | perror("dup stdin"); | |
1960 | return -1; | |
1961 | } | |
d5396421 | 1962 | |
c0e0dbc2 | 1963 | fdblock = -1; |
db7e0552 | 1964 | while ((events = read_events(fd, 0, &fdblock)) > 0) { |
4ab42801 | 1965 | read_sequence++; |
412819ce | 1966 | |
210824c3 | 1967 | #if 0 |
0b07f23e | 1968 | smallest_seq_read = -1U; |
210824c3 | 1969 | #endif |
0b07f23e | 1970 | |
53c68c88 JA |
1971 | if (sort_entries(&youngest)) |
1972 | break; | |
1973 | ||
1974 | if (youngest > stopwatch_end) | |
2ff323b0 JA |
1975 | break; |
1976 | ||
763d936e | 1977 | show_entries_rb(0); |
0b07f23e | 1978 | } |
d5396421 | 1979 | |
a649216c JA |
1980 | if (rb_sort_entries) |
1981 | show_entries_rb(1); | |
1982 | ||
d5396421 | 1983 | close(fd); |
d5396421 JA |
1984 | return 0; |
1985 | } | |
d0ca268b | 1986 | |
cbc927b6 | 1987 | static void show_stats(void) |
412819ce | 1988 | { |
cbc927b6 JA |
1989 | if (!ofp) |
1990 | return; | |
1991 | if (stats_printed) | |
1992 | return; | |
1993 | ||
1994 | stats_printed = 1; | |
1995 | ||
1996 | if (per_process_stats) | |
1997 | show_process_stats(); | |
1998 | ||
1999 | if (per_device_and_cpu_stats) | |
2000 | show_device_and_cpu_stats(); | |
2001 | ||
152f6476 | 2002 | fflush(ofp); |
412819ce JA |
2003 | } |
2004 | ||
e820abd7 | 2005 | static void handle_sigint(__attribute__((__unused__)) int sig) |
412819ce JA |
2006 | { |
2007 | done = 1; | |
412819ce JA |
2008 | } |
2009 | ||
46e6968b NS |
2010 | /* |
2011 | * Extract start and duration times from a string, allowing | |
2012 | * us to specify a time interval of interest within a trace. | |
2013 | * Format: "duration" (start is zero) or "start:duration". | |
2014 | */ | |
2015 | static int find_stopwatch_interval(char *string) | |
2016 | { | |
2017 | double value; | |
2018 | char *sp; | |
2019 | ||
2020 | value = strtod(string, &sp); | |
2021 | if (sp == string) { | |
2022 | fprintf(stderr,"Invalid stopwatch timer: %s\n", string); | |
2023 | return 1; | |
2024 | } | |
2025 | if (*sp == ':') { | |
2026 | stopwatch_start = DOUBLE_TO_NANO_ULL(value); | |
2027 | string = sp + 1; | |
2028 | value = strtod(string, &sp); | |
2029 | if (sp == string || *sp != '\0') { | |
2030 | fprintf(stderr,"Invalid stopwatch duration time: %s\n", | |
2031 | string); | |
2032 | return 1; | |
2033 | } | |
2034 | } else if (*sp != '\0') { | |
2035 | fprintf(stderr,"Invalid stopwatch start timer: %s\n", string); | |
2036 | return 1; | |
2037 | } | |
1b928247 JA |
2038 | stopwatch_end = DOUBLE_TO_NANO_ULL(value); |
2039 | if (stopwatch_end <= stopwatch_start) { | |
2040 | fprintf(stderr, "Invalid stopwatch interval: %Lu -> %Lu\n", | |
2041 | stopwatch_start, stopwatch_end); | |
2042 | return 1; | |
2043 | } | |
2044 | ||
46e6968b NS |
2045 | return 0; |
2046 | } | |
2047 | ||
52724a0e JA |
2048 | static char usage_str[] = \ |
2049 | "[ -i <input name> ] [-o <output name> [ -s ] [ -t ] [ -q ]\n" \ | |
2050 | "[ -w start:stop ] [ -f output format ] [ -F format spec ] [ -v] \n\n" \ | |
2051 | "\t-i Input file containing trace data, or '-' for stdin\n" \ | |
d1d7f15f | 2052 | "\t-D Directory to prepend to input file names\n" \ |
52724a0e JA |
2053 | "\t-o Output file. If not given, output is stdout\n" \ |
2054 | "\t-b stdin read batching\n" \ | |
2055 | "\t-s Show per-program io statistics\n" \ | |
ac740d98 | 2056 | "\t-h Hash processes by name, not pid\n" \ |
52724a0e JA |
2057 | "\t-t Track individual ios. Will tell you the time a request took\n" \ |
2058 | "\t to get queued, to get dispatched, and to get completed\n" \ | |
2059 | "\t-q Quiet. Don't display any stats at the end of the trace\n" \ | |
2060 | "\t-w Only parse data between the given time interval in seconds.\n" \ | |
2061 | "\t If 'start' isn't given, blkparse defaults the start time to 0\n" \ | |
d915dee6 JA |
2062 | "\t-f Output format. Customize the output format. The format field\n" \ |
2063 | "\t identifies can be found in the documentation\n" \ | |
52724a0e | 2064 | "\t-F Format specification. Can be found in the documentation\n" \ |
57ea8602 JA |
2065 | "\t-v More verbose for marginal errors\n" \ |
2066 | "\t-V Print program version info\n\n"; | |
52724a0e | 2067 | |
1f79c4a0 JA |
2068 | static void usage(char *prog) |
2069 | { | |
52724a0e | 2070 | fprintf(stderr, "Usage: %s %s %s", prog, blkparse_version, usage_str); |
1f79c4a0 JA |
2071 | } |
2072 | ||
d5396421 JA |
2073 | int main(int argc, char *argv[]) |
2074 | { | |
152f6476 | 2075 | char *ofp_buffer; |
98f8386b | 2076 | int i, c, ret, mode; |
98f8386b | 2077 | int act_mask_tmp = 0; |
d5396421 JA |
2078 | |
2079 | while ((c = getopt_long(argc, argv, S_OPTS, l_opts, NULL)) != -1) { | |
2080 | switch (c) { | |
98f8386b AB |
2081 | case 'a': |
2082 | i = find_mask_map(optarg); | |
2083 | if (i < 0) { | |
2084 | fprintf(stderr,"Invalid action mask %s\n", | |
2085 | optarg); | |
2086 | return 1; | |
2087 | } | |
2088 | act_mask_tmp |= i; | |
2089 | break; | |
2090 | ||
2091 | case 'A': | |
2092 | if ((sscanf(optarg, "%x", &i) != 1) || | |
2093 | !valid_act_opt(i)) { | |
2094 | fprintf(stderr, | |
2095 | "Invalid set action mask %s/0x%x\n", | |
2096 | optarg, i); | |
2097 | return 1; | |
2098 | } | |
2099 | act_mask_tmp = i; | |
2100 | break; | |
d5396421 | 2101 | case 'i': |
e7c9f3ff NS |
2102 | if (!strcmp(optarg, "-") && !pipeline) |
2103 | pipeline = 1; | |
2104 | else if (resize_devices(optarg) != 0) | |
2105 | return 1; | |
d5396421 | 2106 | break; |
d1d7f15f JA |
2107 | case 'D': |
2108 | input_dir = optarg; | |
2109 | break; | |
d5396421 | 2110 | case 'o': |
66efebf8 | 2111 | output_name = optarg; |
d5396421 | 2112 | break; |
79f19470 JA |
2113 | case 'b': |
2114 | rb_batch = atoi(optarg); | |
2115 | if (rb_batch <= 0) | |
2116 | rb_batch = RB_BATCH_DEFAULT; | |
2117 | break; | |
152f6476 JA |
2118 | case 's': |
2119 | per_process_stats = 1; | |
2120 | break; | |
7997c5b0 JA |
2121 | case 't': |
2122 | track_ios = 1; | |
2123 | break; | |
1e1c60f1 NS |
2124 | case 'q': |
2125 | per_device_and_cpu_stats = 0; | |
2126 | break; | |
46e6968b NS |
2127 | case 'w': |
2128 | if (find_stopwatch_interval(optarg) != 0) | |
2129 | return 1; | |
2130 | break; | |
ab197ca7 AB |
2131 | case 'f': |
2132 | set_all_format_specs(optarg); | |
2133 | break; | |
2134 | case 'F': | |
2135 | if (add_format_spec(optarg) != 0) | |
2136 | return 1; | |
2137 | break; | |
d915dee6 | 2138 | case 'h': |
715d8021 | 2139 | ppi_hash_by_pid = 0; |
bf0720af | 2140 | break; |
52724a0e | 2141 | case 'v': |
57ea8602 JA |
2142 | verbose++; |
2143 | break; | |
2144 | case 'V': | |
52724a0e JA |
2145 | printf("%s version %s\n", argv[0], blkparse_version); |
2146 | return 0; | |
d5396421 | 2147 | default: |
1f79c4a0 | 2148 | usage(argv[0]); |
d5396421 JA |
2149 | return 1; |
2150 | } | |
d0ca268b JA |
2151 | } |
2152 | ||
e7c9f3ff NS |
2153 | while (optind < argc) { |
2154 | if (!strcmp(argv[optind], "-") && !pipeline) | |
2155 | pipeline = 1; | |
2156 | else if (resize_devices(argv[optind]) != 0) | |
2157 | return 1; | |
2158 | optind++; | |
2159 | } | |
2160 | ||
2161 | if (!pipeline && !ndevices) { | |
1f79c4a0 | 2162 | usage(argv[0]); |
d5396421 JA |
2163 | return 1; |
2164 | } | |
2165 | ||
98f8386b AB |
2166 | if (act_mask_tmp != 0) |
2167 | act_mask = act_mask_tmp; | |
2168 | ||
7997c5b0 | 2169 | memset(&rb_sort_root, 0, sizeof(rb_sort_root)); |
412819ce JA |
2170 | |
2171 | signal(SIGINT, handle_sigint); | |
2172 | signal(SIGHUP, handle_sigint); | |
2173 | signal(SIGTERM, handle_sigint); | |
d5396421 | 2174 | |
d69db225 JA |
2175 | setlocale(LC_NUMERIC, "en_US"); |
2176 | ||
a66877e6 | 2177 | if (!output_name) { |
152f6476 | 2178 | ofp = fdopen(STDOUT_FILENO, "w"); |
a66877e6 JA |
2179 | mode = _IOLBF; |
2180 | } else { | |
152f6476 JA |
2181 | char ofname[128]; |
2182 | ||
7a9690c0 | 2183 | snprintf(ofname, sizeof(ofname) - 1, "%s", output_name); |
152f6476 | 2184 | ofp = fopen(ofname, "w"); |
a66877e6 | 2185 | mode = _IOFBF; |
152f6476 JA |
2186 | } |
2187 | ||
2188 | if (!ofp) { | |
2189 | perror("fopen"); | |
2190 | return 1; | |
2191 | } | |
2192 | ||
2193 | ofp_buffer = malloc(4096); | |
a66877e6 | 2194 | if (setvbuf(ofp, ofp_buffer, mode, 4096)) { |
152f6476 JA |
2195 | perror("setvbuf"); |
2196 | return 1; | |
2197 | } | |
2198 | ||
e7c9f3ff | 2199 | if (pipeline) |
d5396421 JA |
2200 | ret = do_stdin(); |
2201 | else | |
2202 | ret = do_file(); | |
2203 | ||
cbc927b6 | 2204 | show_stats(); |
eb9bd4e9 | 2205 | free(ofp_buffer); |
d5396421 | 2206 | return ret; |
d0ca268b | 2207 | } |