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Groups > linux.kernel > #1248640

[PATCH 13/57] perf tools: Add stat event

From Jiri Olsa <jolsa@kernel.org>
Newsgroups linux.kernel
Subject [PATCH 13/57] perf tools: Add stat event
Date 2015-10-16 13:00 +0200
Message-ID <qkaTV-3YR-51@gated-at.bofh.it> (permalink)
References <qkaKe-3Nh-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Adding stat event to store 'struct perf_counter_values' for
given event/cpu/thread.

Link: http://lkml.kernel.org/n/tip-56xpt7m6au4d8u39nffoqgx1@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/event.c   |  1 +
 tools/perf/util/event.h   | 19 +++++++++++++++++++
 tools/perf/util/session.c | 25 +++++++++++++++++++++++++
 tools/perf/util/tool.h    |  3 ++-
 4 files changed, 47 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 33b662acea55..74aec1e1f775 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -42,6 +42,7 @@ static const char *perf_event__names[] = {
 	[PERF_RECORD_THREAD_MAP]		= "THREAD_MAP",
 	[PERF_RECORD_CPU_MAP]			= "CPU_MAP",
 	[PERF_RECORD_STAT_CONFIG]		= "STAT_CONFIG",
+	[PERF_RECORD_STAT]			= "STAT",
 };
 
 const char *perf_event__name(unsigned int id)
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 308fad327eff..30f7dc963137 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -229,6 +229,7 @@ enum perf_user_event_type { /* above any possible kernel type */
 	PERF_RECORD_THREAD_MAP			= 73,
 	PERF_RECORD_CPU_MAP			= 74,
 	PERF_RECORD_STAT_CONFIG			= 75,
+	PERF_RECORD_STAT			= 76,
 	PERF_RECORD_HEADER_MAX
 };
 
@@ -414,6 +415,23 @@ struct stat_config_event {
 	struct stat_config_term_event	data[];
 };
 
+struct stat_event {
+	struct perf_event_header	header;
+
+	u64	id;
+	u32	cpu;
+	u32	thread;
+
+	union {
+		struct {
+			u64 val;
+			u64 ena;
+			u64 run;
+		};
+		u64 values[3];
+	};
+};
+
 union perf_event {
 	struct perf_event_header	header;
 	struct mmap_event		mmap;
@@ -439,6 +457,7 @@ union perf_event {
 	struct thread_map_event		thread_map;
 	struct cpu_map_event		cpu_map;
 	struct stat_config_event	stat_config;
+	struct stat_event		stat;
 };
 
 void perf_event__print_totals(void);
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 481e41d2d013..3460cdbf6596 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -324,6 +324,15 @@ int process_event_stat_config_stub(struct perf_tool *tool __maybe_unused,
 	return 0;
 }
 
+static int process_stat_stub(struct perf_tool *tool __maybe_unused,
+			     union perf_event *event __maybe_unused,
+			     struct perf_session *perf_session
+			     __maybe_unused)
+{
+	dump_printf(": unhandled!\n");
+	return 0;
+}
+
 void perf_tool__fill_defaults(struct perf_tool *tool)
 {
 	if (tool->sample == NULL)
@@ -380,6 +389,8 @@ void perf_tool__fill_defaults(struct perf_tool *tool)
 		tool->cpu_map = process_event_cpu_map_stub;
 	if (tool->stat_config == NULL)
 		tool->stat_config = process_event_stat_config_stub;
+	if (tool->stat == NULL)
+		tool->stat = process_stat_stub;
 }
 
 static void swap_sample_id_all(union perf_event *event, void *data)
@@ -707,6 +718,17 @@ static void perf_event__stat_config_swap(union perf_event *event,
 	mem_bswap_64(&event->stat_config.nr, size);
 }
 
+static void perf_event__stat_swap(union perf_event *event,
+				  bool sample_id_all __maybe_unused)
+{
+	event->stat.id     = bswap_64(event->stat.id);
+	event->stat.thread = bswap_32(event->stat.thread);
+	event->stat.cpu    = bswap_32(event->stat.cpu);
+	event->stat.val    = bswap_64(event->stat.val);
+	event->stat.ena    = bswap_64(event->stat.ena);
+	event->stat.run    = bswap_64(event->stat.run);
+}
+
 typedef void (*perf_event__swap_op)(union perf_event *event,
 				    bool sample_id_all);
 
@@ -737,6 +759,7 @@ static perf_event__swap_op perf_event__swap_ops[] = {
 	[PERF_RECORD_THREAD_MAP]	  = perf_event__thread_map_swap,
 	[PERF_RECORD_CPU_MAP]		  = perf_event__cpu_map_swap,
 	[PERF_RECORD_STAT_CONFIG]	  = perf_event__stat_config_swap,
+	[PERF_RECORD_STAT]		  = perf_event__stat_swap,
 	[PERF_RECORD_HEADER_MAX]	  = NULL,
 };
 
@@ -1279,6 +1302,8 @@ static s64 perf_session__process_user_event(struct perf_session *session,
 		return tool->cpu_map(tool, event, session);
 	case PERF_RECORD_STAT_CONFIG:
 		return tool->stat_config(tool, event, session);
+	case PERF_RECORD_STAT:
+		return tool->stat(tool, event, session);
 	default:
 		return -EINVAL;
 	}
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index aa7ae73d76b4..f0b9da0c166a 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -58,7 +58,8 @@ struct perf_tool {
 			auxtrace_error,
 			thread_map,
 			cpu_map,
-			stat_config;
+			stat_config,
+			stat;
 	event_op3	auxtrace;
 	bool		ordered_events;
 	bool		ordering_requires_timestamps;
-- 
2.4.3

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Thread

[PATCHv4 00/57] perf stat: Add scripting support Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 50/57] perf script: Check output fields only for samples Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 27/57] perf tools: Move id_offset out of struct perf_evsel union Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 41/57] perf stat report: Cache aggregated map entries in extra cpumap Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 35/57] perf stat record: Write stat events on record Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 06/57] perf tools: Add cpu_map event synthesize function Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 38/57] perf stat record: Synthesize attr update events Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 25/57] perf report: Display newly added events in raw dump Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 43/57] perf stat report: Process cpu/threads maps Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 08/57] perf tools: Add cpu_map__new_event function Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 30/57] perf stat record: Add record command Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 39/57] perf tools: Make cpu_map__build_map global Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 49/57] perf stat report: Allow to override aggr_mode Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 03/57] perf tools: Add thread_map__new_event function Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 40/57] perf tools: Add data arg to cpu_map__build_map callback Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 42/57] perf stat report: Add report command Jiri Olsa <jolsa@kernel.org> - 2015-10-16 12:50 +0200
  [PATCH 15/57] perf tools: Add stat event read function Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 11/57] perf tools: Add stat config event synthesize function Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 33/57] perf stat record: Store events IDs in perf data file Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 21/57] perf tools: Add attr_update event scale type Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 18/57] perf tools: Add stat events fprintf functions Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 09/57] perf tools: Add perf_event__fprintf_cpu_map function Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 17/57] perf tools: Add stat round event synthesize function Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 07/57] perf tools: Add cpu_map__empty_new function Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 26/57] perf tools: Introduce stat feature Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 36/57] perf stat record: Write stat round events on record Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 10/57] perf tools: Add stat config event Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 04/57] perf tools: Add perf_event__fprintf_thread_map function Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 20/57] perf tools: Add attr_update event unit type Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 05/57] perf tools: Add cpu_map event Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 13/57] perf tools: Add stat event Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 24/57] perf tools: Add perf_event__fprintf_attr_update function Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 29/57] perf stat: Add AGGR_UNSET mode Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 34/57] perf stat record: Add pipe support for record command Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 31/57] perf stat record: Initialize record features Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:00 +0200
  [PATCH 02/57] perf tools: Add thread_map event sythesize function Jiri Olsa <jolsa@kernel.org> - 2015-10-16 13:10 +0200

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