linux-kernel - [PATCH 13/14] perf tools: Apply percent-limit to cumulative percentage

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Date:	Thu, 31 Oct 2013 15:56:15 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Stephane Eranian <eranian@...gle.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Rodrigo Campos <rodrigo@...g.com.ar>,
	Arun Sharma <asharma@...com>
Subject: [PATCH 13/14] perf tools: Apply percent-limit to cumulative percentage

From: Namhyung Kim <namhyung.kim@....com>

If -g cumulative option is given, it needs to show entries which don't
have self overhead.  So apply percent-limit to accumulated overhead
percentage in this case.

Cc: Arun Sharma <asharma@...com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/ui/browsers/hists.c | 15 ++++++++++++---
 tools/perf/ui/gtk/hists.c      |  4 ++++
 tools/perf/ui/stdio/hist.c     |  4 ++++
 3 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 2cea6cd9824e..07f500d8df1b 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -834,6 +834,10 @@ static unsigned int hist_browser__refresh(struct ui_browser *browser)
 		if (h->filtered)
 			continue;
 
+		if (callchain_param.mode == CHAIN_CUMULATIVE)
+			percent = h->stat_acc->period * 100.0 /
+					hb->hists->stats.total_period;
+
 		if (percent < hb->min_pcnt)
 			continue;
 
@@ -854,10 +858,11 @@ static struct rb_node *hists__filter_entries(struct rb_node *nd,
 		float percent = h->stat.period * 100.0 /
 					hists->stats.total_period;
 
-		if (percent < min_pcnt)
-			return NULL;
+		if (callchain_param.mode == CHAIN_CUMULATIVE)
+			percent = h->stat_acc->period * 100.0 /
+					hists->stats.total_period;
 
-		if (!h->filtered)
+		if (!h->filtered && percent >= min_pcnt)
 			return nd;
 
 		nd = rb_next(nd);
@@ -875,6 +880,10 @@ static struct rb_node *hists__filter_prev_entries(struct rb_node *nd,
 		float percent = h->stat.period * 100.0 /
 					hists->stats.total_period;
 
+		if (callchain_param.mode == CHAIN_CUMULATIVE)
+			percent = h->stat_acc->period * 100.0 /
+					hists->stats.total_period;
+
 		if (!h->filtered && percent >= min_pcnt)
 			return nd;
 
diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index 70ed0d5e1b94..b93302840cce 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -302,6 +302,10 @@ static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists,
 		if (h->filtered)
 			continue;
 
+		if (callchain_param.mode == CHAIN_CUMULATIVE)
+			percent = h->stat_acc->period * 100.0 /
+					hists->stats.total_period;
+
 		if (percent < min_pcnt)
 			continue;
 
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index 302f08afd6a2..49db435f0cc2 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -496,6 +496,10 @@ print_entries:
 		if (h->filtered)
 			continue;
 
+		if (callchain_param.mode == CHAIN_CUMULATIVE)
+			percent = h->stat_acc->period * 100.0 /
+					hists->stats.total_period;
+
 		if (percent < min_pcnt)
 			continue;
 
-- 
1.7.11.7

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