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perf report: add --dump-raw-trace option

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To help the inspection of various data files, implement an ASCII dump
method that just dumps the records as they are read in - then we exit.

[ Impact: new feature ]

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2009-05-26 18:48:58 +02:00
parent abd54f6862
commit 97b07b699b
1 changed files with 38 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

39
Documentation/perf_counter/builtin-report.c
View file

@ -20,6 +20,8 @@ static char const *input_name = "output.perf";
static int input;
static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV;
static int dump_trace = 0;
static unsigned long page_size;
static unsigned long mmap_window = 32;
@ -643,7 +645,7 @@ static int __cmd_report(void)
char *buf;
event_t *event;
int ret, rc = EXIT_FAILURE;
unsigned long total = 0;
unsigned long total = 0, total_mmap = 0, total_comm = 0;
input = open(input_name, O_RDONLY);
if (input < 0) {
@ -706,6 +708,13 @@ more:
struct thread *thread = threads__findnew(event->ip.pid);
uint64_t ip = event->ip.ip;
if (dump_trace) {
fprintf(stderr, "PERF_EVENT (IP, %d): %d: %p\n",
event->header.misc,
event->ip.pid,
(void *)event->ip.ip);
}
if (thread == NULL) {
fprintf(stderr, "problem processing %d event, bailing out\n",
event->header.type);
@ -743,23 +752,40 @@ more:
struct thread *thread = threads__findnew(event->mmap.pid);
struct map *map = map__new(&event->mmap);
if (dump_trace) {
fprintf(stderr, "PERF_EVENT_MMAP: [%p(%p) @ %p]: %s\n",
(void *)event->mmap.start,
(void *)event->mmap.len,
(void *)event->mmap.pgoff,
event->mmap.filename);
}
if (thread == NULL || map == NULL) {
fprintf(stderr, "problem processing PERF_EVENT_MMAP, bailing out\n");
goto done;
}
thread__insert_map(thread, map);
total_mmap++;
break;
}
case PERF_EVENT_COMM: {
struct thread *thread = threads__findnew(event->comm.pid);
if (dump_trace) {
fprintf(stderr, "PERF_EVENT_COMM: %s:%d\n",
event->comm.comm, event->comm.pid);
}
if (thread == NULL ||
thread__set_comm(thread, event->comm.comm)) {
fprintf(stderr, "problem processing PERF_EVENT_COMM, bailing out\n");
goto done;
}
total_comm++;
break;
}
default: {
fprintf(stderr, "skipping unknown header type: %d\n",
event->header.type);
}
}
if (offset + head < stat.st_size)
@ -768,6 +794,15 @@ more:
rc = EXIT_SUCCESS;
done:
close(input);
if (dump_trace) {
fprintf(stderr, " IP events: %10ld\n", total);
fprintf(stderr, " mmap events: %10ld\n", total_mmap);
fprintf(stderr, " comm events: %10ld\n", total_comm);
return 0;
}
//dsos__fprintf(stdout);
threads__fprintf(stdout);
#if 0
@ -796,6 +831,8 @@ static const char * const report_usage[] = {
static const struct option options[] = {
OPT_STRING('i', "input", &input_name, "file",
"input file name"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
OPT_END()
};