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From: tip-bot for Jiri Olsa <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: jolsa@kernel.org, linux-kernel@vger.kernel.org,
	kan.liang@intel.com, dsahern@gmail.com, mingo@kernel.org,
	tglx@linutronix.de, hpa@zytor.com, acme@redhat.com,
	a.p.zijlstra@chello.nl, namhyung@kernel.org
Subject: [tip:perf/core] perf thread_map: Add thread_map event sythesize function
Date: Fri, 18 Dec 2015 01:00:49 -0800	[thread overview]
Message-ID: <tip-99471c967a00c875bb5d61f377d4267904545499@git.kernel.org> (raw)
In-Reply-To: <1445784728-21732-5-git-send-email-jolsa@kernel.org>

Commit-ID:  99471c967a00c875bb5d61f377d4267904545499
Gitweb:     http://git.kernel.org/tip/99471c967a00c875bb5d61f377d4267904545499
Author:     Jiri Olsa <jolsa@kernel.org>
AuthorDate: Sun, 25 Oct 2015 15:51:20 +0100
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 17 Dec 2015 14:38:16 -0300

perf thread_map: Add thread_map event sythesize function

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 0372d59..745bdb0 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 a0733aa..3fe52cc 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 2be02d3..ac5be25 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 771545a..b13373a 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 66f303e..952dd4d 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,

  reply	other threads:[~2015-12-18  9:01 UTC|newest]

Thread overview: 99+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-25 14:51 [PATCHv5 00/52] perf stat: Add scripting support Jiri Olsa
2015-10-25 14:51 ` [PATCH 01/52] perf cpu_map: Add cpu_map__empty_new function Jiri Olsa
2015-10-29  9:41   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 02/52] perf stat: Cache aggregated map entries in extra cpumap Jiri Olsa
2015-10-29  9:41   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 03/52] perf tools: Add thread_map event Jiri Olsa
2015-10-26 17:42   ` Arnaldo Carvalho de Melo
2015-10-26 17:45     ` Jiri Olsa
2015-10-26 17:48     ` Arnaldo Carvalho de Melo
2015-10-26 17:55       ` Jiri Olsa
2015-10-26 17:57         ` Arnaldo Carvalho de Melo
2015-12-18  9:00   ` [tip:perf/core] perf thread_map: Add thread_map user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 04/52] perf tools: Add thread_map event sythesize function Jiri Olsa
2015-12-18  9:00   ` tip-bot for Jiri Olsa [this message]
2015-10-25 14:51 ` [PATCH 05/52] perf tools: Add thread_map__new_event function Jiri Olsa
2015-12-18  9:01   ` [tip:perf/core] perf thread_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 06/52] perf tools: Add perf_event__fprintf_thread_map function Jiri Olsa
2015-12-18  9:01   ` [tip:perf/core] perf thread_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 07/52] perf tools: Add cpu_map event Jiri Olsa
2015-12-18  9:01   ` [tip:perf/core] perf cpu_map: Add cpu_map user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 08/52] perf tools: Add cpu_map event synthesize function Jiri Olsa
2015-12-18  9:02   ` [tip:perf/core] perf cpu_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 09/52] perf tools: Add cpu_map__new_event function Jiri Olsa
2015-12-18  9:02   ` [tip:perf/core] perf cpu_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 10/52] perf tools: Add perf_event__fprintf_cpu_map function Jiri Olsa
2015-12-18  9:02   ` [tip:perf/core] perf cpu_map: " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 11/52] perf tools: Add stat config event Jiri Olsa
2015-10-27 13:16   ` Arnaldo Carvalho de Melo
2015-10-27 13:30     ` Jiri Olsa
2015-10-27 13:44       ` Arnaldo Carvalho de Melo
2015-10-27 13:51         ` Jiri Olsa
2015-10-27 14:13           ` Arnaldo Carvalho de Melo
2015-12-18  9:03   ` [tip:perf/core] perf tools: Add stat config user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 12/52] perf tools: Add stat config event synthesize function Jiri Olsa
2015-12-18  9:03   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 13/52] perf tools: Add stat config event read function Jiri Olsa
2015-12-18  9:03   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 14/52] perf tools: Add stat event Jiri Olsa
2015-12-18  9:04   ` [tip:perf/core] perf tools: Add stat user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 15/52] perf tools: Add stat event synthesize function Jiri Olsa
2015-12-18  9:04   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 16/52] perf tools: Add stat event read function Jiri Olsa
2015-12-18  9:04   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 17/52] perf tools: Add stat round event Jiri Olsa
2015-12-18  9:05   ` [tip:perf/core] perf tools: Add stat round user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 18/52] perf tools: Add stat round event synthesize function Jiri Olsa
2015-12-18  9:05   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 19/52] perf tools: Add stat events fprintf functions Jiri Olsa
2015-12-18  9:05   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 20/52] perf tools: Add event_update event Jiri Olsa
2015-12-18  9:06   ` [tip:perf/core] perf tools: Add event_update user level event tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 21/52] perf tools: Add event_update event unit type Jiri Olsa
2015-12-18  9:06   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 22/52] perf tools: Add event_update event scale type Jiri Olsa
2015-12-18  9:06   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 23/52] perf tools: Add event_update event name type Jiri Olsa
2015-12-18  9:07   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 24/52] perf tools: Add event_update event cpus type Jiri Olsa
2015-12-18  9:07   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 25/52] perf tools: Add perf_event__fprintf_event_update function Jiri Olsa
2015-12-18  9:07   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 26/52] perf report: Display newly added events in raw dump Jiri Olsa
2015-12-18  9:07   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 27/52] perf tools: Introduce stat feature Jiri Olsa
2015-12-18  9:08   ` [tip:perf/core] perf tools: Introduce stat perf.data header feature tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 28/52] perf tools: Move id_offset out of struct perf_evsel union Jiri Olsa
2015-10-29  9:40   ` [tip:perf/core] perf evsel: Move id_offset out of struct perf_evsel union member tip-bot for Jiri Olsa
2015-10-25 14:51 ` [PATCH 29/52] perf stat record: Add record command Jiri Olsa
2015-10-27 14:26   ` Arnaldo Carvalho de Melo
2015-10-25 14:51 ` [PATCH 30/52] perf stat record: Initialize record features Jiri Olsa
2015-10-25 14:51 ` [PATCH 31/52] perf stat record: Synthesize stat record data Jiri Olsa
2015-10-27 14:42   ` Arnaldo Carvalho de Melo
2015-10-28 12:15     ` Jiri Olsa
2015-10-28 13:03     ` Jiri Olsa
2015-10-28 13:04     ` Jiri Olsa
2015-10-25 14:51 ` [PATCH 32/52] perf stat record: Store events IDs in perf data file Jiri Olsa
2015-10-25 14:51 ` [PATCH 33/52] perf stat record: Add pipe support for record command Jiri Olsa
2015-10-25 14:51 ` [PATCH 34/52] perf stat record: Write stat events on record Jiri Olsa
2015-10-25 14:51 ` [PATCH 35/52] perf stat record: Write stat round " Jiri Olsa
2015-10-25 14:51 ` [PATCH 36/52] perf stat record: Do not allow record with multiple runs mode Jiri Olsa
2015-10-25 14:51 ` [PATCH 37/52] perf stat record: Synthesize event update events Jiri Olsa
2015-10-25 14:51 ` [PATCH 38/52] perf stat report: Add report command Jiri Olsa
2015-10-25 14:51 ` [PATCH 39/52] perf stat report: Process cpu/threads maps Jiri Olsa
2015-10-25 14:51 ` [PATCH 40/52] perf stat report: Process stat config event Jiri Olsa
2015-10-25 14:51 ` [PATCH 41/52] perf stat report: Add support to initialize aggr_map from file Jiri Olsa
2015-10-25 14:51 ` [PATCH 42/52] perf stat report: Process stat and stat round events Jiri Olsa
2015-10-25 14:51 ` [PATCH 43/52] perf stat report: Process event update events Jiri Olsa
2015-10-25 14:52 ` [PATCH 44/52] perf stat report: Move csv_sep initialization before report command Jiri Olsa
2015-10-25 14:52 ` [PATCH 45/52] perf stat report: Allow to override aggr_mode Jiri Olsa
2015-10-25 14:52 ` [PATCH 46/52] perf script: Process cpu/threads maps Jiri Olsa
2015-10-25 14:52 ` [PATCH 47/52] perf script: Process stat config event Jiri Olsa
2015-10-25 14:52 ` [PATCH 48/52] perf script: Add process_stat/process_stat_interval scripting interface Jiri Olsa
2015-10-25 14:52 ` [PATCH 49/52] perf script: Add stat default handlers Jiri Olsa
2015-10-25 14:52 ` [PATCH 50/52] perf script: Display stat events by default Jiri Olsa
2015-10-25 14:52 ` [PATCH 51/52] perf script: Add python support for stat events Jiri Olsa
2015-10-25 14:52 ` [PATCH 52/52] perf script: Add stat-cpi.py script Jiri Olsa
2015-10-26 17:34 ` [PATCHv5 00/52] perf stat: Add scripting support Arnaldo Carvalho de Melo
2015-10-27 14:24   ` Liang, Kan
2015-10-27 14:48     ` Arnaldo Carvalho de Melo

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