linux-kernel - [PATCH v1 5/8] perf c2c: Use more explicit headers for HITM

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Date:   Wed, 14 Oct 2020 06:09:18 +0100
From:   Leo Yan <leo.yan@...aro.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Andi Kleen <ak@...ux.intel.com>,
        David Ahern <dsahern@...il.com>,
        Don Zickus <dzickus@...hat.com>, Joe Mario <jmario@...hat.com>,
        Al Grant <Al.Grant@....com>, James Clark <james.clark@....com>,
        linux-kernel@...r.kernel.org
Cc:     Leo Yan <leo.yan@...aro.org>
Subject: [PATCH v1 5/8] perf c2c: Use more explicit headers for HITM

Local and remote HITM use the headers 'Lcl' and 'Rmt' respectively,
suppose if we want to extend the tool to display these two dimensions
under any one metrics, users cannot understand the semantics if only
based on the header string 'Lcl' or 'Rmt'.

To explicit express the meaning for HITM items, this patch changes the
headers string as "LclHitm" and "RmtHitm", the strings are more readable
and this allows to extend metrics for using HITM items.

Signed-off-by: Leo Yan <leo.yan@...aro.org>
---
 tools/perf/builtin-c2c.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index fa7a1c55b989..3d5aa21020f2 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1336,7 +1336,7 @@ static struct c2c_dimension dim_tot_hitm = {
 };
 
 static struct c2c_dimension dim_lcl_hitm = {
-	.header		= HEADER_SPAN_LOW("Lcl"),
+	.header		= HEADER_SPAN_LOW("LclHitm"),
 	.name		= "lcl_hitm",
 	.cmp		= lcl_hitm_cmp,
 	.entry		= lcl_hitm_entry,
@@ -1344,7 +1344,7 @@ static struct c2c_dimension dim_lcl_hitm = {
 };
 
 static struct c2c_dimension dim_rmt_hitm = {
-	.header		= HEADER_SPAN_LOW("Rmt"),
+	.header		= HEADER_SPAN_LOW("RmtHitm"),
 	.name		= "rmt_hitm",
 	.cmp		= rmt_hitm_cmp,
 	.entry		= rmt_hitm_entry,
@@ -1486,7 +1486,7 @@ static struct c2c_dimension dim_percent_hitm = {
 };
 
 static struct c2c_dimension dim_percent_rmt_hitm = {
-	.header		= HEADER_SPAN("----- HITM -----", "Rmt", 1),
+	.header		= HEADER_SPAN("----- HITM -----", "RmtHitm", 1),
 	.name		= "percent_rmt_hitm",
 	.cmp		= percent_rmt_hitm_cmp,
 	.entry		= percent_rmt_hitm_entry,
@@ -1495,7 +1495,7 @@ static struct c2c_dimension dim_percent_rmt_hitm = {
 };
 
 static struct c2c_dimension dim_percent_lcl_hitm = {
-	.header		= HEADER_SPAN_LOW("Lcl"),
+	.header		= HEADER_SPAN_LOW("LclHitm"),
 	.name		= "percent_lcl_hitm",
 	.cmp		= percent_lcl_hitm_cmp,
 	.entry		= percent_lcl_hitm_entry,
-- 
2.17.1