linux-kernel - [PATCH v3 02/11] perf util: Define a structure for runtime shadow stats

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Message-Id: <1511957158-5813-3-git-send-email-yao.jin@linux.intel.com>
Date:   Wed, 29 Nov 2017 20:05:49 +0800
From:   Jin Yao <yao.jin@...ux.intel.com>
To:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com
Cc:     Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, yao.jin@...el.com,
        Jin Yao <yao.jin@...ux.intel.com>
Subject: [PATCH v3 02/11] perf util: Define a structure for runtime shadow stats

Perf has a set of static variables to record the runtime shadow
metrics stats.

While if we want to record the runtime shadow stats for per-thread,
it will be the limitation. This patch creates a structure and the
next patches will use this structure to update the runtime shadow
stats for per-thread.

Signed-off-by: Jin Yao <yao.jin@...ux.intel.com>
---
 tools/perf/util/stat-shadow.c | 11 -----------
 tools/perf/util/stat.h        | 46 ++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 45 insertions(+), 12 deletions(-)

diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 855e35c..5853901 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -9,17 +9,6 @@
 #include "expr.h"
 #include "metricgroup.h"
 
-enum {
-	CTX_BIT_USER	= 1 << 0,
-	CTX_BIT_KERNEL	= 1 << 1,
-	CTX_BIT_HV	= 1 << 2,
-	CTX_BIT_HOST	= 1 << 3,
-	CTX_BIT_IDLE	= 1 << 4,
-	CTX_BIT_MAX	= 1 << 5,
-};
-
-#define NUM_CTX CTX_BIT_MAX
-
 /*
  * AGGR_GLOBAL: Use CPU 0
  * AGGR_SOCKET: Use first CPU of socket
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index eefca5c..afa7002 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -5,6 +5,8 @@
 #include <linux/types.h>
 #include <stdio.h>
 #include "xyarray.h"
+#include "evsel.h"
+#include "rblist.h"
 
 struct stats
 {
@@ -43,11 +45,54 @@ enum aggr_mode {
 	AGGR_UNSET,
 };
 
+enum {
+	CTX_BIT_USER	= 1 << 0,
+	CTX_BIT_KERNEL	= 1 << 1,
+	CTX_BIT_HV	= 1 << 2,
+	CTX_BIT_HOST	= 1 << 3,
+	CTX_BIT_IDLE	= 1 << 4,
+	CTX_BIT_MAX	= 1 << 5,
+};
+
+#define NUM_CTX CTX_BIT_MAX
+
+enum stat_type {
+	STAT_NONE = 0,
+	STAT_NSECS,
+	STAT_CYCLES,
+	STAT_STALLED_CYCLES_FRONT,
+	STAT_STALLED_CYCLES_BACK,
+	STAT_BRANCHES,
+	STAT_CACHEREFS,
+	STAT_L1_DCACHE,
+	STAT_L1_ICACHE,
+	STAT_LL_CACHE,
+	STAT_ITLB_CACHE,
+	STAT_DTLB_CACHE,
+	STAT_CYCLES_IN_TX,
+	STAT_TRANSACTION,
+	STAT_ELISION,
+	STAT_TOPDOWN_TOTAL_SLOTS,
+	STAT_TOPDOWN_SLOTS_ISSUED,
+	STAT_TOPDOWN_SLOTS_RETIRED,
+	STAT_TOPDOWN_FETCH_BUBBLES,
+	STAT_TOPDOWN_RECOVERY_BUBBLES,
+	STAT_SMI_NUM,
+	STAT_APERF,
+	STAT_MAX
+};
+
+struct runtime_stat {
+	struct rblist value_list;
+};
+
 struct perf_stat_config {
 	enum aggr_mode	aggr_mode;
 	bool		scale;
 	FILE		*output;
 	unsigned int	interval;
+	struct runtime_stat *stats;
+	int             stats_num;
 };
 
 void update_stats(struct stats *stats, u64 val);
@@ -92,7 +137,6 @@ struct perf_stat_output_ctx {
 	bool force_header;
 };
 
-struct rblist;
 void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
 				   double avg, int cpu,
 				   struct perf_stat_output_ctx *out,
-- 
2.7.4