[PATCH v4 04/12] perf c2c: Add dimensions of peer metrics for cache line view

From: Leo Yan <leo.yan@linaro.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
	Alyssa Ross <hi@alyssa.is>, Ian Rogers <irogers@google.com>,
	Like Xu <likexu@tencent.com>, Kajol Jain <kjain@linux.ibm.com>,
	Li Huafei <lihuafei1@huawei.com>, Joe Mario <jmario@redhat.com>,
	Adam Li <adam.li@amperecomputing.com>,
	German Gomez <german.gomez@arm.com>,
	James Clark <james.clark@arm.com>,
	Ali Saidi <alisaidi@amazon.com>,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Leo Yan <leo.yan@linaro.org>
Subject: [PATCH v4 04/12] perf c2c: Add dimensions of peer metrics for cache line view
Date: Mon, 30 May 2022 19:40:28 +0800	[thread overview]
Message-ID: <20220530114036.3225544-5-leo.yan@linaro.org> (raw)
In-Reply-To: <20220530114036.3225544-1-leo.yan@linaro.org>

This patch adds dimensions of peer ops, which will be used for Shared
cache line distribution pareto.

It adds the percentage dimensions for local and remote peer operations,
and the dimensions for accounting operation numbers which is used for
stdio mode.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
 tools/perf/builtin-c2c.c | 102 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 2d7991d372a6..85768c526f9d 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -902,6 +902,8 @@ static double percent_ ## __f(struct c2c_hist_entry *c2c_he)			\
 
 PERCENT_FN(rmt_hitm)
 PERCENT_FN(lcl_hitm)
+PERCENT_FN(rmt_peer)
+PERCENT_FN(lcl_peer)
 PERCENT_FN(st_l1hit)
 PERCENT_FN(st_l1miss)
 PERCENT_FN(st_na)
@@ -968,6 +970,68 @@ percent_lcl_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 	return per_left - per_right;
 }
 
+static int
+percent_lcl_peer_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+		       struct hist_entry *he)
+{
+	int width = c2c_width(fmt, hpp, he->hists);
+	double per = PERCENT(he, lcl_peer);
+	char buf[10];
+
+	return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
+}
+
+static int
+percent_lcl_peer_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+		       struct hist_entry *he)
+{
+	return percent_color(fmt, hpp, he, percent_lcl_peer);
+}
+
+static int64_t
+percent_lcl_peer_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+		     struct hist_entry *left, struct hist_entry *right)
+{
+	double per_left;
+	double per_right;
+
+	per_left  = PERCENT(left, lcl_peer);
+	per_right = PERCENT(right, lcl_peer);
+
+	return per_left - per_right;
+}
+
+static int
+percent_rmt_peer_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+		       struct hist_entry *he)
+{
+	int width = c2c_width(fmt, hpp, he->hists);
+	double per = PERCENT(he, rmt_peer);
+	char buf[10];
+
+	return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
+}
+
+static int
+percent_rmt_peer_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
+		       struct hist_entry *he)
+{
+	return percent_color(fmt, hpp, he, percent_rmt_peer);
+}
+
+static int64_t
+percent_rmt_peer_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
+		     struct hist_entry *left, struct hist_entry *right)
+{
+	double per_left;
+	double per_right;
+
+	per_left  = PERCENT(left, rmt_peer);
+	per_right = PERCENT(right, rmt_peer);
+
+	return per_left - per_right;
+}
+
 static int
 percent_stores_l1hit_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 			   struct hist_entry *he)
@@ -1403,6 +1467,22 @@ static struct c2c_dimension dim_cl_lcl_hitm = {
 	.width		= 7,
 };
 
+static struct c2c_dimension dim_cl_rmt_peer = {
+	.header		= HEADER_SPAN("----- Peer -----", "Rmt", 1),
+	.name		= "cl_rmt_peer",
+	.cmp		= rmt_peer_cmp,
+	.entry		= rmt_peer_entry,
+	.width		= 7,
+};
+
+static struct c2c_dimension dim_cl_lcl_peer = {
+	.header		= HEADER_SPAN_LOW("Lcl"),
+	.name		= "cl_lcl_peer",
+	.cmp		= lcl_peer_cmp,
+	.entry		= lcl_peer_entry,
+	.width		= 7,
+};
+
 static struct c2c_dimension dim_tot_stores = {
 	.header		= HEADER_BOTH("Total", "Stores"),
 	.name		= "tot_stores",
@@ -1547,6 +1627,24 @@ static struct c2c_dimension dim_percent_lcl_hitm = {
 	.width		= 7,
 };
 
+static struct c2c_dimension dim_percent_rmt_peer = {
+	.header		= HEADER_SPAN("-- Peer Snoop --", "Rmt", 1),
+	.name		= "percent_rmt_peer",
+	.cmp		= percent_rmt_peer_cmp,
+	.entry		= percent_rmt_peer_entry,
+	.color		= percent_rmt_peer_color,
+	.width		= 7,
+};
+
+static struct c2c_dimension dim_percent_lcl_peer = {
+	.header		= HEADER_SPAN_LOW("Lcl"),
+	.name		= "percent_lcl_peer",
+	.cmp		= percent_lcl_peer_cmp,
+	.entry		= percent_lcl_peer_entry,
+	.color		= percent_lcl_peer_color,
+	.width		= 7,
+};
+
 static struct c2c_dimension dim_percent_stores_l1hit = {
 	.header		= HEADER_SPAN("------- Store Refs ------", "L1 Hit", 2),
 	.name		= "percent_stores_l1hit",
@@ -1704,6 +1802,8 @@ static struct c2c_dimension *dimensions[] = {
 	&dim_rmt_peer,
 	&dim_cl_lcl_hitm,
 	&dim_cl_rmt_hitm,
+	&dim_cl_lcl_peer,
+	&dim_cl_rmt_peer,
 	&dim_tot_stores,
 	&dim_stores_l1hit,
 	&dim_stores_l1miss,
@@ -1721,6 +1821,8 @@ static struct c2c_dimension *dimensions[] = {
 	&dim_percent_hitm,
 	&dim_percent_rmt_hitm,
 	&dim_percent_lcl_hitm,
+	&dim_percent_rmt_peer,
+	&dim_percent_lcl_peer,
 	&dim_percent_stores_l1hit,
 	&dim_percent_stores_l1miss,
 	&dim_percent_stores_na,
-- 
2.25.1

