All of lore.kernel.org
 help / color / mirror / Atom feed
* [PATCH v2] perf tools: Use tid for finding thread
@ 2014-05-12  0:56 Namhyung Kim
  2014-05-12 16:01 ` [tip:perf/core] " tip-bot for Namhyung Kim
  0 siblings, 1 reply; 2+ messages in thread
From: Namhyung Kim @ 2014-05-12  0:56 UTC (permalink / raw)
  To: Arnaldo Carvalho de Melo, Jiri Olsa
  Cc: Peter Zijlstra, Ingo Molnar, Paul Mackerras, Namhyung Kim,
	Namhyung Kim, LKML, Stephane Eranian, David Ahern, Adrian Hunter

I believe that passing pid (instead of tid) as the 3rd arg of the
machine__find*_thread() was to find a main thread so that it can
search proper map group for symbols.  However with the map sharing
patch applied, it now can do it in any thread.

It fixes a bug when each thread has different name, it only reports a
main thread for samples in other threads.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: David Ahern <dsahern@gmail.com>
Acked-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-inject.c     | 2 +-
 tools/perf/builtin-kmem.c       | 2 +-
 tools/perf/tests/code-reading.c | 2 +-
 tools/perf/tests/hists_filter.c | 1 +
 tools/perf/tests/hists_link.c   | 2 ++
 tools/perf/util/build-id.c      | 2 +-
 tools/perf/util/event.c         | 2 +-
 7 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 3a7387551369..6a3af0013d68 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -209,7 +209,7 @@ static int perf_event__inject_buildid(struct perf_tool *tool,
 
 	cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
 
-	thread = machine__findnew_thread(machine, sample->pid, sample->pid);
+	thread = machine__findnew_thread(machine, sample->pid, sample->tid);
 	if (thread == NULL) {
 		pr_err("problem processing %d event, skipping it.\n",
 		       event->header.type);
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index f91fa4376f4b..bef3376bfaf3 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -235,7 +235,7 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
 				struct machine *machine)
 {
 	struct thread *thread = machine__findnew_thread(machine, sample->pid,
-							sample->pid);
+							sample->tid);
 
 	if (thread == NULL) {
 		pr_debug("problem processing %d event, skipping it.\n",
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index adf3de3e38d6..67f2d6323558 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -256,7 +256,7 @@ static int process_sample_event(struct machine *machine,
 		return -1;
 	}
 
-	thread = machine__findnew_thread(machine, sample.pid, sample.pid);
+	thread = machine__findnew_thread(machine, sample.pid, sample.tid);
 	if (!thread) {
 		pr_debug("machine__findnew_thread failed\n");
 		return -1;
diff --git a/tools/perf/tests/hists_filter.c b/tools/perf/tests/hists_filter.c
index 23dc2f4d12c3..4617a8bee29b 100644
--- a/tools/perf/tests/hists_filter.c
+++ b/tools/perf/tests/hists_filter.c
@@ -69,6 +69,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
 			evsel->hists.symbol_filter_str = NULL;
 
 			sample.pid = fake_samples[i].pid;
+			sample.tid = fake_samples[i].pid;
 			sample.ip = fake_samples[i].ip;
 
 			if (perf_event__preprocess_sample(&event, machine, &al,
diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c
index e42d6790811a..b009bbf440d9 100644
--- a/tools/perf/tests/hists_link.c
+++ b/tools/perf/tests/hists_link.c
@@ -81,6 +81,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
 			};
 
 			sample.pid = fake_common_samples[k].pid;
+			sample.tid = fake_common_samples[k].pid;
 			sample.ip = fake_common_samples[k].ip;
 			if (perf_event__preprocess_sample(&event, machine, &al,
 							  &sample) < 0)
@@ -104,6 +105,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
 			};
 
 			sample.pid = fake_samples[i][k].pid;
+			sample.tid = fake_samples[i][k].pid;
 			sample.ip = fake_samples[i][k].ip;
 			if (perf_event__preprocess_sample(&event, machine, &al,
 							  &sample) < 0)
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 6baabe63182b..a904a4cfe7d3 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -25,7 +25,7 @@ int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused,
 	struct addr_location al;
 	u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
 	struct thread *thread = machine__findnew_thread(machine, sample->pid,
-							sample->pid);
+							sample->tid);
 
 	if (thread == NULL) {
 		pr_err("problem processing %d event, skipping it.\n",
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index dbcaea1a8180..65795b835b39 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -788,7 +788,7 @@ int perf_event__preprocess_sample(const union perf_event *event,
 {
 	u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
 	struct thread *thread = machine__findnew_thread(machine, sample->pid,
-							sample->pid);
+							sample->tid);
 
 	if (thread == NULL)
 		return -1;
-- 
1.9.2


^ permalink raw reply related	[flat|nested] 2+ messages in thread
end of thread, other threads:[~2014-05-12 16:02 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-05-12  0:56 [PATCH v2] perf tools: Use tid for finding thread Namhyung Kim
2014-05-12 16:01 ` [tip:perf/core] " tip-bot for Namhyung Kim

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.