linux-kernel - [PATCH 3/3] perfcounter: Display percents of hits in callchain with overhead colors

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Message-Id: <1246558475-10624-3-git-send-email-fweisbec@gmail.com>
Date:	Thu,  2 Jul 2009 20:14:35 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mike Galbraith <efault@....de>,
	Paul Mackerras <paulus@...ba.org>,
	Anton Blanchard <anton@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: [PATCH 3/3] perfcounter: Display percents of hits in callchain with overhead colors

This adds the use of colors to signal at a glance the important
overhead thresholds in callchains hit rates.

Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
---
 tools/perf/builtin-report.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index bfca1e4..01902f0 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -819,7 +819,7 @@ ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain, int depth,
 			double percent;
 
 			percent = hits * 100.0 / total_samples;
-			ret += fprintf(fp, "--%2.2f%%-- ", percent);
+			ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent);
 		} else
 			ret += fprintf(fp, "%s", "          ");
 	}
@@ -919,7 +919,8 @@ hist_entry_callchain__fprintf(FILE *fp, struct hist_entry *self,
 		chain = rb_entry(rb_node, struct callchain_node, rb_node);
 		percent = chain->hit * 100.0 / total_samples;
 		if (callchain_mode == FLAT) {
-			ret += fprintf(fp, "           %6.2f%%\n", percent);
+			ret += percent_color_fprintf(fp, "           %6.2f%%\n",
+						     percent);
 			ret += callchain__fprintf_flat(fp, chain, total_samples);
 		} else if (callchain_mode == GRAPH) {
 			ret += callchain__fprintf_graph(fp, chain,
-- 
1.6.2.3

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