linux-kernel - [PATCH 2/2] perf top: Handle 'z' key for toggle zeroing samples in TUI

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Message-Id: <1407831366-28892-2-git-send-email-namhyung@kernel.org>
Date:	Tue, 12 Aug 2014 17:16:06 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Namhyung Kim <namhyung.kim@....com>,
	Namhyung Kim <namhyung@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Stephane Eranian <eranian@...gle.com>,
	Jiri Olsa <jolsa@...hat.com>, David Ahern <dsahern@...il.com>
Subject: [PATCH 2/2] perf top: Handle 'z' key for toggle zeroing samples in TUI

The perf top TUI lacks 'z' key support to toggle sample zeroing.
Add it.

Reported-by: Stephane Eranian <eranian@...gle.com>
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/ui/browsers/hists.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 045c1e16ac59..381c085a41b8 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -10,6 +10,7 @@
 #include "../../util/pstack.h"
 #include "../../util/sort.h"
 #include "../../util/util.h"
+#include "../../util/top.h"
 #include "../../arch/common.h"
 
 #include "../browser.h"
@@ -1530,6 +1531,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
 	"P             Print histograms to perf.hist.N\n"
 	"t             Zoom into current Thread\n"
 	"V             Verbose (DSO names in callchains, etc)\n"
+	"z             Toggle zeroing of samples\n"
 	"/             Filter symbol by name";
 
 	if (browser == NULL)
@@ -1630,6 +1632,13 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
 		case 'F':
 			symbol_conf.filter_relative ^= 1;
 			continue;
+		case 'z':
+			if (!is_report_browser(hbt)) {
+				struct perf_top *top = hbt->arg;
+
+				top->zero = !top->zero;
+			}
+			continue;
 		case K_F1:
 		case 'h':
 		case '?':
-- 
2.0.0

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