4 * Builtin report command: Analyze the perf.data input file,
5 * look up and read DSOs and symbol information and display
6 * a histogram of results, along various sorting keys.
10 #include "util/util.h"
12 #include "util/color.h"
13 #include "util/list.h"
14 #include "util/cache.h"
15 #include "util/rbtree.h"
16 #include "util/symbol.h"
17 #include "util/string.h"
21 #include "util/parse-options.h"
22 #include "util/parse-events.h"
28 static char const *input_name
= "perf.data";
29 static char *vmlinux
= NULL
;
31 static char default_sort_order
[] = "comm,dso";
32 static char *sort_order
= default_sort_order
;
35 static int show_mask
= SHOW_KERNEL
| SHOW_USER
| SHOW_HV
;
37 static int dump_trace
= 0;
38 #define dprintf(x...) do { if (dump_trace) printf(x); } while (0)
39 #define cdprintf(x...) do { if (dump_trace) color_fprintf(stdout, color, x); } while (0)
42 #define eprintf(x...) do { if (verbose) fprintf(stderr, x); } while (0)
44 static int full_paths
;
46 static unsigned long page_size
;
47 static unsigned long mmap_window
= 32;
49 static char default_parent_pattern
[] = "^sys_|^do_page_fault";
50 static char *parent_pattern
= default_parent_pattern
;
51 static regex_t parent_regex
;
53 static int exclude_other
= 1;
56 struct perf_event_header header
;
59 unsigned char __more_data
[];
68 struct perf_event_header header
;
73 char filename
[PATH_MAX
];
77 struct perf_event_header header
;
83 struct perf_event_header header
;
88 struct perf_event_header header
;
95 struct perf_event_header header
;
100 typedef union event_union
{
101 struct perf_event_header header
;
103 struct mmap_event mmap
;
104 struct comm_event comm
;
105 struct fork_event fork
;
106 struct period_event period
;
107 struct lost_event lost
;
110 static LIST_HEAD(dsos
);
111 static struct dso
*kernel_dso
;
112 static struct dso
*vdso
;
114 static void dsos__add(struct dso
*dso
)
116 list_add_tail(&dso
->node
, &dsos
);
119 static struct dso
*dsos__find(const char *name
)
123 list_for_each_entry(pos
, &dsos
, node
)
124 if (strcmp(pos
->name
, name
) == 0)
129 static struct dso
*dsos__findnew(const char *name
)
131 struct dso
*dso
= dsos__find(name
);
137 dso
= dso__new(name
, 0);
141 nr
= dso__load(dso
, NULL
, verbose
);
143 eprintf("Failed to open: %s\n", name
);
147 eprintf("No symbols found in: %s, maybe install a debug package?\n", name
);
158 static void dsos__fprintf(FILE *fp
)
162 list_for_each_entry(pos
, &dsos
, node
)
163 dso__fprintf(pos
, fp
);
166 static struct symbol
*vdso__find_symbol(struct dso
*dso
, u64 ip
)
168 return dso__find_symbol(kernel_dso
, ip
);
171 static int load_kernel(void)
175 kernel_dso
= dso__new("[kernel]", 0);
179 err
= dso__load_kernel(kernel_dso
, vmlinux
, NULL
, verbose
);
181 dso__delete(kernel_dso
);
184 dsos__add(kernel_dso
);
186 vdso
= dso__new("[vdso]", 0);
190 vdso
->find_symbol
= vdso__find_symbol
;
197 static char __cwd
[PATH_MAX
];
198 static char *cwd
= __cwd
;
201 static int strcommon(const char *pathname
)
205 while (pathname
[n
] == cwd
[n
] && n
< cwdlen
)
212 struct list_head node
;
216 u64 (*map_ip
)(struct map
*, u64
);
220 static u64
map__map_ip(struct map
*map
, u64 ip
)
222 return ip
- map
->start
+ map
->pgoff
;
225 static u64
vdso__map_ip(struct map
*map
, u64 ip
)
230 static inline int is_anon_memory(const char *filename
)
232 return strcmp(filename
, "//anon") == 0;
235 static struct map
*map__new(struct mmap_event
*event
)
237 struct map
*self
= malloc(sizeof(*self
));
240 const char *filename
= event
->filename
;
241 char newfilename
[PATH_MAX
];
245 int n
= strcommon(filename
);
248 snprintf(newfilename
, sizeof(newfilename
),
249 ".%s", filename
+ n
);
250 filename
= newfilename
;
254 anon
= is_anon_memory(filename
);
257 snprintf(newfilename
, sizeof(newfilename
), "/tmp/perf-%d.map", event
->pid
);
258 filename
= newfilename
;
261 self
->start
= event
->start
;
262 self
->end
= event
->start
+ event
->len
;
263 self
->pgoff
= event
->pgoff
;
265 self
->dso
= dsos__findnew(filename
);
266 if (self
->dso
== NULL
)
269 if (self
->dso
== vdso
|| anon
)
270 self
->map_ip
= vdso__map_ip
;
272 self
->map_ip
= map__map_ip
;
280 static struct map
*map__clone(struct map
*self
)
282 struct map
*map
= malloc(sizeof(*self
));
287 memcpy(map
, self
, sizeof(*self
));
292 static int map__overlap(struct map
*l
, struct map
*r
)
294 if (l
->start
> r
->start
) {
300 if (l
->end
> r
->start
)
306 static size_t map__fprintf(struct map
*self
, FILE *fp
)
308 return fprintf(fp
, " %Lx-%Lx %Lx %s\n",
309 self
->start
, self
->end
, self
->pgoff
, self
->dso
->name
);
314 struct rb_node rb_node
;
315 struct list_head maps
;
320 static struct thread
*thread__new(pid_t pid
)
322 struct thread
*self
= malloc(sizeof(*self
));
326 self
->comm
= malloc(32);
328 snprintf(self
->comm
, 32, ":%d", self
->pid
);
329 INIT_LIST_HEAD(&self
->maps
);
335 static int thread__set_comm(struct thread
*self
, const char *comm
)
339 self
->comm
= strdup(comm
);
340 return self
->comm
? 0 : -ENOMEM
;
343 static size_t thread__fprintf(struct thread
*self
, FILE *fp
)
346 size_t ret
= fprintf(fp
, "Thread %d %s\n", self
->pid
, self
->comm
);
348 list_for_each_entry(pos
, &self
->maps
, node
)
349 ret
+= map__fprintf(pos
, fp
);
355 static struct rb_root threads
;
356 static struct thread
*last_match
;
358 static struct thread
*threads__findnew(pid_t pid
)
360 struct rb_node
**p
= &threads
.rb_node
;
361 struct rb_node
*parent
= NULL
;
365 * Font-end cache - PID lookups come in blocks,
366 * so most of the time we dont have to look up
369 if (last_match
&& last_match
->pid
== pid
)
374 th
= rb_entry(parent
, struct thread
, rb_node
);
376 if (th
->pid
== pid
) {
387 th
= thread__new(pid
);
389 rb_link_node(&th
->rb_node
, parent
, p
);
390 rb_insert_color(&th
->rb_node
, &threads
);
397 static void thread__insert_map(struct thread
*self
, struct map
*map
)
399 struct map
*pos
, *tmp
;
401 list_for_each_entry_safe(pos
, tmp
, &self
->maps
, node
) {
402 if (map__overlap(pos
, map
)) {
403 list_del_init(&pos
->node
);
409 list_add_tail(&map
->node
, &self
->maps
);
412 static int thread__fork(struct thread
*self
, struct thread
*parent
)
418 self
->comm
= strdup(parent
->comm
);
422 list_for_each_entry(map
, &parent
->maps
, node
) {
423 struct map
*new = map__clone(map
);
426 thread__insert_map(self
, new);
432 static struct map
*thread__find_map(struct thread
*self
, u64 ip
)
439 list_for_each_entry(pos
, &self
->maps
, node
)
440 if (ip
>= pos
->start
&& ip
<= pos
->end
)
446 static size_t threads__fprintf(FILE *fp
)
451 for (nd
= rb_first(&threads
); nd
; nd
= rb_next(nd
)) {
452 struct thread
*pos
= rb_entry(nd
, struct thread
, rb_node
);
454 ret
+= thread__fprintf(pos
, fp
);
461 * histogram, sorted on item, collects counts
464 static struct rb_root hist
;
467 struct rb_node rb_node
;
469 struct thread
*thread
;
473 struct symbol
*parent
;
481 * configurable sorting bits
485 struct list_head list
;
489 int64_t (*cmp
)(struct hist_entry
*, struct hist_entry
*);
490 int64_t (*collapse
)(struct hist_entry
*, struct hist_entry
*);
491 size_t (*print
)(FILE *fp
, struct hist_entry
*);
494 static int64_t cmp_null(void *l
, void *r
)
507 sort__thread_cmp(struct hist_entry
*left
, struct hist_entry
*right
)
509 return right
->thread
->pid
- left
->thread
->pid
;
513 sort__thread_print(FILE *fp
, struct hist_entry
*self
)
515 return fprintf(fp
, "%16s:%5d", self
->thread
->comm
?: "", self
->thread
->pid
);
518 static struct sort_entry sort_thread
= {
519 .header
= " Command: Pid",
520 .cmp
= sort__thread_cmp
,
521 .print
= sort__thread_print
,
527 sort__comm_cmp(struct hist_entry
*left
, struct hist_entry
*right
)
529 return right
->thread
->pid
- left
->thread
->pid
;
533 sort__comm_collapse(struct hist_entry
*left
, struct hist_entry
*right
)
535 char *comm_l
= left
->thread
->comm
;
536 char *comm_r
= right
->thread
->comm
;
538 if (!comm_l
|| !comm_r
)
539 return cmp_null(comm_l
, comm_r
);
541 return strcmp(comm_l
, comm_r
);
545 sort__comm_print(FILE *fp
, struct hist_entry
*self
)
547 return fprintf(fp
, "%16s", self
->thread
->comm
);
550 static struct sort_entry sort_comm
= {
551 .header
= " Command",
552 .cmp
= sort__comm_cmp
,
553 .collapse
= sort__comm_collapse
,
554 .print
= sort__comm_print
,
560 sort__dso_cmp(struct hist_entry
*left
, struct hist_entry
*right
)
562 struct dso
*dso_l
= left
->dso
;
563 struct dso
*dso_r
= right
->dso
;
565 if (!dso_l
|| !dso_r
)
566 return cmp_null(dso_l
, dso_r
);
568 return strcmp(dso_l
->name
, dso_r
->name
);
572 sort__dso_print(FILE *fp
, struct hist_entry
*self
)
575 return fprintf(fp
, "%-25s", self
->dso
->name
);
577 return fprintf(fp
, "%016llx ", (u64
)self
->ip
);
580 static struct sort_entry sort_dso
= {
581 .header
= "Shared Object ",
582 .cmp
= sort__dso_cmp
,
583 .print
= sort__dso_print
,
589 sort__sym_cmp(struct hist_entry
*left
, struct hist_entry
*right
)
593 if (left
->sym
== right
->sym
)
596 ip_l
= left
->sym
? left
->sym
->start
: left
->ip
;
597 ip_r
= right
->sym
? right
->sym
->start
: right
->ip
;
599 return (int64_t)(ip_r
- ip_l
);
603 sort__sym_print(FILE *fp
, struct hist_entry
*self
)
608 ret
+= fprintf(fp
, "%#018llx ", (u64
)self
->ip
);
611 ret
+= fprintf(fp
, "[%c] %s",
612 self
->dso
== kernel_dso
? 'k' : '.', self
->sym
->name
);
614 ret
+= fprintf(fp
, "%#016llx", (u64
)self
->ip
);
620 static struct sort_entry sort_sym
= {
622 .cmp
= sort__sym_cmp
,
623 .print
= sort__sym_print
,
629 sort__parent_cmp(struct hist_entry
*left
, struct hist_entry
*right
)
631 struct symbol
*sym_l
= left
->parent
;
632 struct symbol
*sym_r
= right
->parent
;
634 if (!sym_l
|| !sym_r
)
635 return cmp_null(sym_l
, sym_r
);
637 return strcmp(sym_l
->name
, sym_r
->name
);
641 sort__parent_print(FILE *fp
, struct hist_entry
*self
)
645 ret
+= fprintf(fp
, "%-20s", self
->parent
? self
->parent
->name
: "[other]");
650 static struct sort_entry sort_parent
= {
651 .header
= "Parent symbol ",
652 .cmp
= sort__parent_cmp
,
653 .print
= sort__parent_print
,
656 static int sort__need_collapse
= 0;
657 static int sort__has_parent
= 0;
659 struct sort_dimension
{
661 struct sort_entry
*entry
;
665 static struct sort_dimension sort_dimensions
[] = {
666 { .name
= "pid", .entry
= &sort_thread
, },
667 { .name
= "comm", .entry
= &sort_comm
, },
668 { .name
= "dso", .entry
= &sort_dso
, },
669 { .name
= "symbol", .entry
= &sort_sym
, },
670 { .name
= "parent", .entry
= &sort_parent
, },
673 static LIST_HEAD(hist_entry__sort_list
);
675 static int sort_dimension__add(char *tok
)
679 for (i
= 0; i
< ARRAY_SIZE(sort_dimensions
); i
++) {
680 struct sort_dimension
*sd
= &sort_dimensions
[i
];
685 if (strncasecmp(tok
, sd
->name
, strlen(tok
)))
688 if (sd
->entry
->collapse
)
689 sort__need_collapse
= 1;
691 if (sd
->entry
== &sort_parent
) {
692 int ret
= regcomp(&parent_regex
, parent_pattern
, REG_EXTENDED
);
696 regerror(ret
, &parent_regex
, err
, sizeof(err
));
697 fprintf(stderr
, "Invalid regex: %s\n%s",
698 parent_pattern
, err
);
701 sort__has_parent
= 1;
704 list_add_tail(&sd
->entry
->list
, &hist_entry__sort_list
);
714 hist_entry__cmp(struct hist_entry
*left
, struct hist_entry
*right
)
716 struct sort_entry
*se
;
719 list_for_each_entry(se
, &hist_entry__sort_list
, list
) {
720 cmp
= se
->cmp(left
, right
);
729 hist_entry__collapse(struct hist_entry
*left
, struct hist_entry
*right
)
731 struct sort_entry
*se
;
734 list_for_each_entry(se
, &hist_entry__sort_list
, list
) {
735 int64_t (*f
)(struct hist_entry
*, struct hist_entry
*);
737 f
= se
->collapse
?: se
->cmp
;
739 cmp
= f(left
, right
);
748 hist_entry__fprintf(FILE *fp
, struct hist_entry
*self
, u64 total_samples
)
750 struct sort_entry
*se
;
753 if (exclude_other
&& !self
->parent
)
757 double percent
= self
->count
* 100.0 / total_samples
;
758 char *color
= PERF_COLOR_NORMAL
;
761 * We color high-overhead entries in red, mid-overhead
762 * entries in green - and keep the low overhead places
765 if (percent
>= 5.0) {
766 color
= PERF_COLOR_RED
;
769 color
= PERF_COLOR_GREEN
;
772 ret
= color_fprintf(fp
, color
, " %6.2f%%",
773 (self
->count
* 100.0) / total_samples
);
775 ret
= fprintf(fp
, "%12Ld ", self
->count
);
777 list_for_each_entry(se
, &hist_entry__sort_list
, list
) {
778 if (exclude_other
&& (se
== &sort_parent
))
782 ret
+= se
->print(fp
, self
);
785 ret
+= fprintf(fp
, "\n");
794 static struct symbol
*
795 resolve_symbol(struct thread
*thread
, struct map
**mapp
,
796 struct dso
**dsop
, u64
*ipp
)
798 struct dso
*dso
= dsop
? *dsop
: NULL
;
799 struct map
*map
= mapp
? *mapp
: NULL
;
811 map
= thread__find_map(thread
, ip
);
816 ip
= map
->map_ip(map
, ip
);
822 * If this is outside of all known maps,
823 * and is a negative address, try to look it
824 * up in the kernel dso, as it might be a
825 * vsyscall (which executes in user-mode):
827 if ((long long)ip
< 0)
830 dprintf(" ...... dso: %s\n", dso
? dso
->name
: "<not found>");
838 return dso
->find_symbol(dso
, ip
);
841 static int call__match(struct symbol
*sym
)
843 if (sym
->name
&& !regexec(&parent_regex
, sym
->name
, 0, NULL
, 0))
850 * collect histogram counts
854 hist_entry__add(struct thread
*thread
, struct map
*map
, struct dso
*dso
,
855 struct symbol
*sym
, u64 ip
, struct ip_callchain
*chain
,
856 char level
, u64 count
)
858 struct rb_node
**p
= &hist
.rb_node
;
859 struct rb_node
*parent
= NULL
;
860 struct hist_entry
*he
;
861 struct hist_entry entry
= {
873 if (sort__has_parent
&& chain
) {
874 u64 context
= PERF_CONTEXT_MAX
;
877 for (i
= 0; i
< chain
->nr
; i
++) {
878 u64 ip
= chain
->ips
[i
];
879 struct dso
*dso
= NULL
;
882 if (ip
>= PERF_CONTEXT_MAX
) {
888 case PERF_CONTEXT_KERNEL
:
895 sym
= resolve_symbol(thread
, NULL
, &dso
, &ip
);
897 if (sym
&& call__match(sym
)) {
906 he
= rb_entry(parent
, struct hist_entry
, rb_node
);
908 cmp
= hist_entry__cmp(&entry
, he
);
921 he
= malloc(sizeof(*he
));
925 rb_link_node(&he
->rb_node
, parent
, p
);
926 rb_insert_color(&he
->rb_node
, &hist
);
931 static void hist_entry__free(struct hist_entry
*he
)
937 * collapse the histogram
940 static struct rb_root collapse_hists
;
942 static void collapse__insert_entry(struct hist_entry
*he
)
944 struct rb_node
**p
= &collapse_hists
.rb_node
;
945 struct rb_node
*parent
= NULL
;
946 struct hist_entry
*iter
;
951 iter
= rb_entry(parent
, struct hist_entry
, rb_node
);
953 cmp
= hist_entry__collapse(iter
, he
);
956 iter
->count
+= he
->count
;
957 hist_entry__free(he
);
967 rb_link_node(&he
->rb_node
, parent
, p
);
968 rb_insert_color(&he
->rb_node
, &collapse_hists
);
971 static void collapse__resort(void)
973 struct rb_node
*next
;
974 struct hist_entry
*n
;
976 if (!sort__need_collapse
)
979 next
= rb_first(&hist
);
981 n
= rb_entry(next
, struct hist_entry
, rb_node
);
982 next
= rb_next(&n
->rb_node
);
984 rb_erase(&n
->rb_node
, &hist
);
985 collapse__insert_entry(n
);
990 * reverse the map, sort on count.
993 static struct rb_root output_hists
;
995 static void output__insert_entry(struct hist_entry
*he
)
997 struct rb_node
**p
= &output_hists
.rb_node
;
998 struct rb_node
*parent
= NULL
;
999 struct hist_entry
*iter
;
1001 while (*p
!= NULL
) {
1003 iter
= rb_entry(parent
, struct hist_entry
, rb_node
);
1005 if (he
->count
> iter
->count
)
1008 p
= &(*p
)->rb_right
;
1011 rb_link_node(&he
->rb_node
, parent
, p
);
1012 rb_insert_color(&he
->rb_node
, &output_hists
);
1015 static void output__resort(void)
1017 struct rb_node
*next
;
1018 struct hist_entry
*n
;
1019 struct rb_root
*tree
= &hist
;
1021 if (sort__need_collapse
)
1022 tree
= &collapse_hists
;
1024 next
= rb_first(tree
);
1027 n
= rb_entry(next
, struct hist_entry
, rb_node
);
1028 next
= rb_next(&n
->rb_node
);
1030 rb_erase(&n
->rb_node
, tree
);
1031 output__insert_entry(n
);
1035 static size_t output__fprintf(FILE *fp
, u64 total_samples
)
1037 struct hist_entry
*pos
;
1038 struct sort_entry
*se
;
1044 fprintf(fp
, "# (%Ld samples)\n", (u64
)total_samples
);
1047 fprintf(fp
, "# Overhead");
1048 list_for_each_entry(se
, &hist_entry__sort_list
, list
) {
1049 if (exclude_other
&& (se
== &sort_parent
))
1051 fprintf(fp
, " %s", se
->header
);
1055 fprintf(fp
, "# ........");
1056 list_for_each_entry(se
, &hist_entry__sort_list
, list
) {
1059 if (exclude_other
&& (se
== &sort_parent
))
1063 for (i
= 0; i
< strlen(se
->header
); i
++)
1070 for (nd
= rb_first(&output_hists
); nd
; nd
= rb_next(nd
)) {
1071 pos
= rb_entry(nd
, struct hist_entry
, rb_node
);
1072 ret
+= hist_entry__fprintf(fp
, pos
, total_samples
);
1075 if (sort_order
== default_sort_order
&&
1076 parent_pattern
== default_parent_pattern
) {
1078 fprintf(fp
, "# (For more details, try: perf report --sort comm,dso,symbol)\n");
1086 static void register_idle_thread(void)
1088 struct thread
*thread
= threads__findnew(0);
1090 if (thread
== NULL
||
1091 thread__set_comm(thread
, "[idle]")) {
1092 fprintf(stderr
, "problem inserting idle task.\n");
1097 static unsigned long total
= 0,
1104 static int validate_chain(struct ip_callchain
*chain
, event_t
*event
)
1106 unsigned int chain_size
;
1108 chain_size
= event
->header
.size
;
1109 chain_size
-= (unsigned long)&event
->ip
.__more_data
- (unsigned long)event
;
1111 if (chain
->nr
*sizeof(u64
) > chain_size
)
1118 process_overflow_event(event_t
*event
, unsigned long offset
, unsigned long head
)
1122 struct dso
*dso
= NULL
;
1123 struct thread
*thread
= threads__findnew(event
->ip
.pid
);
1124 u64 ip
= event
->ip
.ip
;
1126 struct map
*map
= NULL
;
1127 void *more_data
= event
->ip
.__more_data
;
1128 struct ip_callchain
*chain
= NULL
;
1130 if (event
->header
.type
& PERF_SAMPLE_PERIOD
) {
1131 period
= *(u64
*)more_data
;
1132 more_data
+= sizeof(u64
);
1135 dprintf("%p [%p]: PERF_EVENT (IP, %d): %d: %p period: %Ld\n",
1136 (void *)(offset
+ head
),
1137 (void *)(long)(event
->header
.size
),
1143 if (event
->header
.type
& PERF_SAMPLE_CALLCHAIN
) {
1146 chain
= (void *)more_data
;
1148 dprintf("... chain: nr:%Lu\n", chain
->nr
);
1150 if (validate_chain(chain
, event
) < 0) {
1151 eprintf("call-chain problem with event, skipping it.\n");
1156 for (i
= 0; i
< chain
->nr
; i
++)
1157 dprintf("..... %2d: %016Lx\n", i
, chain
->ips
[i
]);
1161 dprintf(" ... thread: %s:%d\n", thread
->comm
, thread
->pid
);
1163 if (thread
== NULL
) {
1164 eprintf("problem processing %d event, skipping it.\n",
1165 event
->header
.type
);
1169 if (event
->header
.misc
& PERF_EVENT_MISC_KERNEL
) {
1175 dprintf(" ...... dso: %s\n", dso
->name
);
1177 } else if (event
->header
.misc
& PERF_EVENT_MISC_USER
) {
1185 dprintf(" ...... dso: [hypervisor]\n");
1188 if (show
& show_mask
) {
1189 struct symbol
*sym
= resolve_symbol(thread
, &map
, &dso
, &ip
);
1191 if (hist_entry__add(thread
, map
, dso
, sym
, ip
, chain
, level
, period
)) {
1192 eprintf("problem incrementing symbol count, skipping event\n");
1202 process_mmap_event(event_t
*event
, unsigned long offset
, unsigned long head
)
1204 struct thread
*thread
= threads__findnew(event
->mmap
.pid
);
1205 struct map
*map
= map__new(&event
->mmap
);
1207 dprintf("%p [%p]: PERF_EVENT_MMAP %d: [%p(%p) @ %p]: %s\n",
1208 (void *)(offset
+ head
),
1209 (void *)(long)(event
->header
.size
),
1211 (void *)(long)event
->mmap
.start
,
1212 (void *)(long)event
->mmap
.len
,
1213 (void *)(long)event
->mmap
.pgoff
,
1214 event
->mmap
.filename
);
1216 if (thread
== NULL
|| map
== NULL
) {
1217 dprintf("problem processing PERF_EVENT_MMAP, skipping event.\n");
1221 thread__insert_map(thread
, map
);
1228 process_comm_event(event_t
*event
, unsigned long offset
, unsigned long head
)
1230 struct thread
*thread
= threads__findnew(event
->comm
.pid
);
1232 dprintf("%p [%p]: PERF_EVENT_COMM: %s:%d\n",
1233 (void *)(offset
+ head
),
1234 (void *)(long)(event
->header
.size
),
1235 event
->comm
.comm
, event
->comm
.pid
);
1237 if (thread
== NULL
||
1238 thread__set_comm(thread
, event
->comm
.comm
)) {
1239 dprintf("problem processing PERF_EVENT_COMM, skipping event.\n");
1248 process_fork_event(event_t
*event
, unsigned long offset
, unsigned long head
)
1250 struct thread
*thread
= threads__findnew(event
->fork
.pid
);
1251 struct thread
*parent
= threads__findnew(event
->fork
.ppid
);
1253 dprintf("%p [%p]: PERF_EVENT_FORK: %d:%d\n",
1254 (void *)(offset
+ head
),
1255 (void *)(long)(event
->header
.size
),
1256 event
->fork
.pid
, event
->fork
.ppid
);
1258 if (!thread
|| !parent
|| thread__fork(thread
, parent
)) {
1259 dprintf("problem processing PERF_EVENT_FORK, skipping event.\n");
1268 process_period_event(event_t
*event
, unsigned long offset
, unsigned long head
)
1270 dprintf("%p [%p]: PERF_EVENT_PERIOD: time:%Ld, id:%Ld: period:%Ld\n",
1271 (void *)(offset
+ head
),
1272 (void *)(long)(event
->header
.size
),
1275 event
->period
.sample_period
);
1281 process_lost_event(event_t
*event
, unsigned long offset
, unsigned long head
)
1283 dprintf("%p [%p]: PERF_EVENT_LOST: id:%Ld: lost:%Ld\n",
1284 (void *)(offset
+ head
),
1285 (void *)(long)(event
->header
.size
),
1289 total_lost
+= event
->lost
.lost
;
1294 static void trace_event(event_t
*event
)
1296 unsigned char *raw_event
= (void *)event
;
1297 char *color
= PERF_COLOR_BLUE
;
1304 cdprintf("\n. ... raw event: size %d bytes\n", event
->header
.size
);
1306 for (i
= 0; i
< event
->header
.size
; i
++) {
1307 if ((i
& 15) == 0) {
1309 cdprintf(" %04x: ", i
);
1312 cdprintf(" %02x", raw_event
[i
]);
1314 if (((i
& 15) == 15) || i
== event
->header
.size
-1) {
1316 for (j
= 0; j
< 15-(i
& 15); j
++)
1318 for (j
= 0; j
< (i
& 15); j
++) {
1319 if (isprint(raw_event
[i
-15+j
]))
1320 cdprintf("%c", raw_event
[i
-15+j
]);
1331 process_event(event_t
*event
, unsigned long offset
, unsigned long head
)
1335 if (event
->header
.misc
& PERF_EVENT_MISC_OVERFLOW
)
1336 return process_overflow_event(event
, offset
, head
);
1338 switch (event
->header
.type
) {
1339 case PERF_EVENT_MMAP
:
1340 return process_mmap_event(event
, offset
, head
);
1342 case PERF_EVENT_COMM
:
1343 return process_comm_event(event
, offset
, head
);
1345 case PERF_EVENT_FORK
:
1346 return process_fork_event(event
, offset
, head
);
1348 case PERF_EVENT_PERIOD
:
1349 return process_period_event(event
, offset
, head
);
1351 case PERF_EVENT_LOST
:
1352 return process_lost_event(event
, offset
, head
);
1355 * We dont process them right now but they are fine:
1358 case PERF_EVENT_THROTTLE
:
1359 case PERF_EVENT_UNTHROTTLE
:
1369 static struct perf_file_header file_header
;
1371 static int __cmd_report(void)
1373 int ret
, rc
= EXIT_FAILURE
;
1374 unsigned long offset
= 0;
1375 unsigned long head
= sizeof(file_header
);
1381 register_idle_thread();
1383 input
= open(input_name
, O_RDONLY
);
1385 fprintf(stderr
, " failed to open file: %s", input_name
);
1386 if (!strcmp(input_name
, "perf.data"))
1387 fprintf(stderr
, " (try 'perf record' first)");
1388 fprintf(stderr
, "\n");
1392 ret
= fstat(input
, &stat
);
1394 perror("failed to stat file");
1398 if (!stat
.st_size
) {
1399 fprintf(stderr
, "zero-sized file, nothing to do!\n");
1403 if (read(input
, &file_header
, sizeof(file_header
)) == -1) {
1404 perror("failed to read file headers");
1408 if (sort__has_parent
&&
1409 !(file_header
.sample_type
& PERF_SAMPLE_CALLCHAIN
)) {
1410 fprintf(stderr
, "selected --sort parent, but no callchain data\n");
1414 if (load_kernel() < 0) {
1415 perror("failed to load kernel symbols");
1416 return EXIT_FAILURE
;
1420 if (getcwd(__cwd
, sizeof(__cwd
)) == NULL
) {
1421 perror("failed to get the current directory");
1422 return EXIT_FAILURE
;
1424 cwdlen
= strlen(cwd
);
1430 buf
= (char *)mmap(NULL
, page_size
* mmap_window
, PROT_READ
,
1431 MAP_SHARED
, input
, offset
);
1432 if (buf
== MAP_FAILED
) {
1433 perror("failed to mmap file");
1438 event
= (event_t
*)(buf
+ head
);
1440 size
= event
->header
.size
;
1444 if (head
+ event
->header
.size
>= page_size
* mmap_window
) {
1445 unsigned long shift
= page_size
* (head
/ page_size
);
1448 ret
= munmap(buf
, page_size
* mmap_window
);
1456 size
= event
->header
.size
;
1458 dprintf("\n%p [%p]: event: %d\n",
1459 (void *)(offset
+ head
),
1460 (void *)(long)event
->header
.size
,
1461 event
->header
.type
);
1463 if (!size
|| process_event(event
, offset
, head
) < 0) {
1465 dprintf("%p [%p]: skipping unknown header type: %d\n",
1466 (void *)(offset
+ head
),
1467 (void *)(long)(event
->header
.size
),
1468 event
->header
.type
);
1473 * assume we lost track of the stream, check alignment, and
1474 * increment a single u64 in the hope to catch on again 'soon'.
1477 if (unlikely(head
& 7))
1485 if (offset
+ head
>= sizeof(file_header
) + file_header
.data_size
)
1488 if (offset
+ head
< stat
.st_size
)
1495 dprintf(" IP events: %10ld\n", total
);
1496 dprintf(" mmap events: %10ld\n", total_mmap
);
1497 dprintf(" comm events: %10ld\n", total_comm
);
1498 dprintf(" fork events: %10ld\n", total_fork
);
1499 dprintf(" lost events: %10ld\n", total_lost
);
1500 dprintf(" unknown events: %10ld\n", total_unknown
);
1506 threads__fprintf(stdout
);
1509 dsos__fprintf(stdout
);
1513 output__fprintf(stdout
, total
);
1518 static const char * const report_usage
[] = {
1519 "perf report [<options>] <command>",
1523 static const struct option options
[] = {
1524 OPT_STRING('i', "input", &input_name
, "file",
1526 OPT_BOOLEAN('v', "verbose", &verbose
,
1527 "be more verbose (show symbol address, etc)"),
1528 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace
,
1529 "dump raw trace in ASCII"),
1530 OPT_STRING('k', "vmlinux", &vmlinux
, "file", "vmlinux pathname"),
1531 OPT_STRING('s', "sort", &sort_order
, "key[,key2...]",
1532 "sort by key(s): pid, comm, dso, symbol, parent"),
1533 OPT_BOOLEAN('P', "full-paths", &full_paths
,
1534 "Don't shorten the pathnames taking into account the cwd"),
1535 OPT_STRING('p', "parent", &parent_pattern
, "regex",
1536 "regex filter to identify parent, see: '--sort parent'"),
1537 OPT_BOOLEAN('x', "exclude-other", &exclude_other
,
1538 "Only display entries with parent-match"),
1542 static void setup_sorting(void)
1544 char *tmp
, *tok
, *str
= strdup(sort_order
);
1546 for (tok
= strtok_r(str
, ", ", &tmp
);
1547 tok
; tok
= strtok_r(NULL
, ", ", &tmp
)) {
1548 if (sort_dimension__add(tok
) < 0) {
1549 error("Unknown --sort key: `%s'", tok
);
1550 usage_with_options(report_usage
, options
);
1557 int cmd_report(int argc
, const char **argv
, const char *prefix
)
1561 page_size
= getpagesize();
1563 argc
= parse_options(argc
, argv
, options
, report_usage
, 0);
1567 if (parent_pattern
!= default_parent_pattern
)
1568 sort_dimension__add("parent");
1573 * Any (unrecognized) arguments left?
1576 usage_with_options(report_usage
, options
);
1580 return __cmd_report();