perf c2c: Add dimensions of peer metrics for cache line view

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.

Reviewed-by: Ali Saidi <alisaidi@amazon.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Ali Saidi <alisaidi@amazon.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Gustavo A. R. Silva <gustavoars@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Like Xu <likexu@tencent.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Timothy Hayes <timothy.hayes@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220811062451.435810-8-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 102 insertions, 0 deletions

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 99c0c7307a4a..dd47f068b8da 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)
@@ -969,6 +971,68 @@ percent_lcl_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 }
 
 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,