aboutsummaryrefslogtreecommitdiff
path: root/tools
diff options
context:
space:
mode:
authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-06-10 21:45:22 +0200
committerIngo Molnar <mingo@elte.hu>2009-06-11 02:39:01 +0200
commitea1900e571d40a3ce60c835c2f21e1fd8c5cb663 (patch)
treeaca5108ea57e89626e0796f3285985e6a1512f9a /tools
parent66fff22483d8542dfb4d61a28d21277bbde321e8 (diff)
downloadlinux-ea1900e571d40a3ce60c835c2f21e1fd8c5cb663.tar.gz
perf_counter tools: Normalize data using per sample period data
When we use variable period sampling, add the period to the sample data and use that to normalize the samples. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/builtin-record.c3
-rw-r--r--tools/perf/builtin-report.c18
2 files changed, 13 insertions, 8 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index c10553c3460..919f23ca419 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -350,8 +350,9 @@ static void create_counter(int counter, int cpu, pid_t pid)
struct perf_counter_attr *attr = attrs + counter;
int track = 1;
- attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_PERIOD;
+ attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID;
if (freq) {
+ attr->sample_type |= PERF_SAMPLE_PERIOD;
attr->freq = 1;
attr->sample_freq = freq;
}
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 9a0e31e79e9..f57fd5c5531 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -456,7 +456,7 @@ struct hist_entry {
uint64_t ip;
char level;
- uint32_t count;
+ uint64_t count;
};
/*
@@ -726,7 +726,7 @@ hist_entry__fprintf(FILE *fp, struct hist_entry *self, uint64_t total_samples)
static int
hist_entry__add(struct thread *thread, struct map *map, struct dso *dso,
- struct symbol *sym, uint64_t ip, char level)
+ struct symbol *sym, uint64_t ip, char level, uint64_t count)
{
struct rb_node **p = &hist.rb_node;
struct rb_node *parent = NULL;
@@ -738,7 +738,7 @@ hist_entry__add(struct thread *thread, struct map *map, struct dso *dso,
.sym = sym,
.ip = ip,
.level = level,
- .count = 1,
+ .count = count,
};
int cmp;
@@ -749,7 +749,7 @@ hist_entry__add(struct thread *thread, struct map *map, struct dso *dso,
cmp = hist_entry__cmp(&entry, he);
if (!cmp) {
- he->count++;
+ he->count += count;
return 0;
}
@@ -942,15 +942,19 @@ process_overflow_event(event_t *event, unsigned long offset, unsigned long head)
struct dso *dso = NULL;
struct thread *thread = threads__findnew(event->ip.pid);
uint64_t ip = event->ip.ip;
+ uint64_t period = 1;
struct map *map = NULL;
+ if (event->header.type & PERF_SAMPLE_PERIOD)
+ period = event->ip.period;
+
dprintf("%p [%p]: PERF_EVENT (IP, %d): %d: %p period: %Ld\n",
(void *)(offset + head),
(void *)(long)(event->header.size),
event->header.misc,
event->ip.pid,
(void *)(long)ip,
- (long long)event->ip.period);
+ (long long)period);
dprintf(" ... thread: %s:%d\n", thread->comm, thread->pid);
@@ -1001,13 +1005,13 @@ process_overflow_event(event_t *event, unsigned long offset, unsigned long head)
if (dso)
sym = dso->find_symbol(dso, ip);
- if (hist_entry__add(thread, map, dso, sym, ip, level)) {
+ if (hist_entry__add(thread, map, dso, sym, ip, level, period)) {
fprintf(stderr,
"problem incrementing symbol count, skipping event\n");
return -1;
}
}
- total++;
+ total += period;
return 0;
}