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Groups > linux.kernel > #1294222
| From | Arnaldo Carvalho de Melo <acme@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 02/43] perf thread_map: Add thread_map event sythesize function |
| Date | 2015-12-17 21:10 +0100 |
| Message-ID | <qGN2a-48Z-3@gated-at.bofh.it> (permalink) |
| References | <qGMIN-3MF-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Jiri Olsa <jolsa@kernel.org>
Introduce the perf_event__synthesize_thread_map2 function to synthesize
struct thread_map.
The perf_event__synthesize_thread_map name is already taken for
synthesizing the complete threads data (comm/mmap/fork).
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Kan Liang <kan.liang@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1445784728-21732-5-git-send-email-jolsa@kernel.org
[ Rename thread_map_data_event to thread_map_event_entry ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/tests/builtin-test.c | 4 ++++
tools/perf/tests/tests.h | 1 +
tools/perf/tests/thread-map.c | 29 +++++++++++++++++++++++++++++
tools/perf/util/event.c | 36 ++++++++++++++++++++++++++++++++++++
tools/perf/util/event.h | 4 ++++
5 files changed, 74 insertions(+)
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 0372d5945910..745bdb02d22b 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -180,6 +180,10 @@ static struct test generic_tests[] = {
},
},
{
+ .desc = "Test thread map synthesize",
+ .func = test__thread_map_synthesize,
+ },
+ {
.func = NULL,
},
};
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index a0733aaad081..3fe52ccc4d05 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -79,6 +79,7 @@ int test__bpf(int subtest);
const char *test__bpf_subtest_get_desc(int subtest);
int test__bpf_subtest_get_nr(void);
int test_session_topology(int subtest);
+int test__thread_map_synthesize(int subtest);
#if defined(__arm__) || defined(__aarch64__)
#ifdef HAVE_DWARF_UNWIND_SUPPORT
diff --git a/tools/perf/tests/thread-map.c b/tools/perf/tests/thread-map.c
index 2be02d303e82..ac5be2578367 100644
--- a/tools/perf/tests/thread-map.c
+++ b/tools/perf/tests/thread-map.c
@@ -40,3 +40,32 @@ int test__thread_map(int subtest __maybe_unused)
thread_map__put(map);
return 0;
}
+
+static int process_event(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine __maybe_unused)
+{
+ struct thread_map_event *map = &event->thread_map;
+
+ TEST_ASSERT_VAL("wrong nr", map->nr == 1);
+ TEST_ASSERT_VAL("wrong pid", map->entries[0].pid == (u64) getpid());
+ TEST_ASSERT_VAL("wrong comm", !strcmp(map->entries[0].comm, "perf"));
+ return 0;
+}
+
+int test__thread_map_synthesize(int subtest __maybe_unused)
+{
+ struct thread_map *threads;
+
+ /* test map on current pid */
+ threads = thread_map__new_by_pid(getpid());
+ TEST_ASSERT_VAL("failed to alloc map", threads);
+
+ thread_map__read_comms(threads);
+
+ TEST_ASSERT_VAL("failed to synthesize map",
+ !perf_event__synthesize_thread_map2(NULL, threads, process_event, NULL));
+
+ return 0;
+}
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 771545a27b9b..b13373a60337 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -700,6 +700,42 @@ int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
return err;
}
+int perf_event__synthesize_thread_map2(struct perf_tool *tool,
+ struct thread_map *threads,
+ perf_event__handler_t process,
+ struct machine *machine)
+{
+ union perf_event *event;
+ int i, err, size;
+
+ size = sizeof(event->thread_map);
+ size += threads->nr * sizeof(event->thread_map.entries[0]);
+
+ event = zalloc(size);
+ if (!event)
+ return -ENOMEM;
+
+ event->header.type = PERF_RECORD_THREAD_MAP;
+ event->header.size = size;
+ event->thread_map.nr = threads->nr;
+
+ for (i = 0; i < threads->nr; i++) {
+ struct thread_map_event_entry *entry = &event->thread_map.entries[i];
+ char *comm = thread_map__comm(threads, i);
+
+ if (!comm)
+ comm = (char *) "";
+
+ entry->pid = thread_map__pid(threads, i);
+ strncpy((char *) &entry->comm, comm, sizeof(entry->comm));
+ }
+
+ err = process(tool, event, NULL, machine);
+
+ free(event);
+ return err;
+}
+
size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp)
{
const char *s;
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 66f303e69c4d..952dd4d83f81 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -408,6 +408,10 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool,
perf_event__handler_t process,
struct machine *machine, bool mmap_data,
unsigned int proc_map_timeout);
+int perf_event__synthesize_thread_map2(struct perf_tool *tool,
+ struct thread_map *threads,
+ perf_event__handler_t process,
+ struct machine *machine);
int perf_event__synthesize_threads(struct perf_tool *tool,
perf_event__handler_t process,
struct machine *machine, bool mmap_data,
--
2.1.0
--
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[GIT PULL 00/43] perf/core new feature: 'perf stat record/report' Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 08/43] perf cpu_map: Add perf_event__fprintf_cpu_map function Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 06/43] perf cpu_map: Add cpu_map event synthesize function Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 10/43] perf tools: Add stat config event synthesize function Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 19/43] perf tools: Add event_update event unit type Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 09/43] perf tools: Add stat config user level event Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 25/43] perf tools: Introduce stat perf.data header feature Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 24/43] perf report: Display newly added events in raw dump Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 07/43] perf cpu_map: Add cpu_map__new_event function Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 40/43] perf stat report: Move csv_sep initialization before report command Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 05/43] perf cpu_map: Add cpu_map user level event Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 18/43] perf tools: Add event_update user level event Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 22/43] perf tools: Add event_update event cpus type Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 29/43] perf evlist: Export id_add_fd() Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 01/43] perf thread_map: Add thread_map user level event Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 17/43] perf tools: Add stat events fprintf functions Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 39/43] perf stat report: Add support to initialize aggr_map from file Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 36/43] perf stat report: Add report command Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 03/43] perf thread_map: Add thread_map__new_event function Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 16/43] perf tools: Add stat round event synthesize function Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 28/43] perf stat record: Synthesize stat record data Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 35/43] perf stat record: Synthesize event update events Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 13/43] perf tools: Add stat event synthesize function Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 26/43] perf stat record: Add record command Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 15/43] perf tools: Add stat round user level event Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 21/43] perf tools: Add event_update event name type Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 20/43] perf tools: Add event_update event scale type Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 33/43] perf stat record: Write stat round events on record Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 14/43] perf tools: Add stat event read function Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:00 +0100
[PATCH 02/43] perf thread_map: Add thread_map event sythesize function Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:10 +0100
[PATCH 04/43] perf thread_map: Add perf_event__fprintf_thread_map function Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 21:10 +0100
Re: [GIT PULL 00/43] perf/core new feature: 'perf stat record/report' Ingo Molnar <mingo@kernel.org> - 2015-12-18 09:50 +0100
Re: [GIT PULL 00/43] perf/core new feature: 'perf stat record/report' Ingo Molnar <mingo@kernel.org> - 2015-12-18 10:00 +0100
Re: [GIT PULL 00/43] perf/core new feature: 'perf stat record/report' Jiri Olsa <jolsa@redhat.com> - 2015-12-18 11:20 +0100
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