linux-kernel - [tip:perf/core] perf hists browser: Add suppport for event group view

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Message-ID: <tip-371d8c402e8c3562e913c7fda95094f42fbcf0ef@git.kernel.org>
Date:	Fri, 1 Feb 2013 02:49:52 -0800
From:	tip-bot for Namhyung Kim <namhyung.kim@....com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, eranian@...gle.com,
	paulus@...ba.org, hpa@...or.com, mingo@...nel.org,
	a.p.zijlstra@...llo.nl, namhyung.kim@....com, namhyung@...nel.org,
	jolsa@...hat.com, tglx@...utronix.de
Subject: [tip:perf/core] perf hists browser:
  Add suppport for event group view

Commit-ID:  371d8c402e8c3562e913c7fda95094f42fbcf0ef
Gitweb:     http://git.kernel.org/tip/371d8c402e8c3562e913c7fda95094f42fbcf0ef
Author:     Namhyung Kim <namhyung.kim@....com>
AuthorDate: Tue, 22 Jan 2013 18:09:39 +0900
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Thu, 31 Jan 2013 13:07:47 -0300

perf hists browser: Add suppport for event group view

Show group members' overhead also when showing the leader's if event
group is enabled.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/r/1358845787-1350-12-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/ui/browsers/hists.c | 57 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 852e4e1..d7112df 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -602,6 +602,63 @@ static int __hpp__color_fmt(struct perf_hpp *hpp, struct hist_entry *he,
 	ret += scnprintf(hpp->buf, hpp->size, "%6.2f%%", percent);
 	slsmg_printf("%s", hpp->buf);
 
+	if (symbol_conf.event_group) {
+		int prev_idx, idx_delta;
+		struct perf_evsel *evsel = hists_to_evsel(hists);
+		struct hist_entry *pair;
+		int nr_members = evsel->nr_members;
+
+		if (nr_members <= 1)
+			goto out;
+
+		prev_idx = perf_evsel__group_idx(evsel);
+
+		list_for_each_entry(pair, &he->pairs.head, pairs.node) {
+			u64 period = get_field(pair);
+			u64 total = pair->hists->stats.total_period;
+
+			if (!total)
+				continue;
+
+			evsel = hists_to_evsel(pair->hists);
+			idx_delta = perf_evsel__group_idx(evsel) - prev_idx - 1;
+
+			while (idx_delta--) {
+				/*
+				 * zero-fill group members in the middle which
+				 * have no sample
+				 */
+				ui_browser__set_percent_color(arg->b, 0.0,
+							arg->current_entry);
+				ret += scnprintf(hpp->buf, hpp->size,
+						 " %6.2f%%", 0.0);
+				slsmg_printf("%s", hpp->buf);
+			}
+
+			percent = 100.0 * period / total;
+			ui_browser__set_percent_color(arg->b, percent,
+						      arg->current_entry);
+			ret += scnprintf(hpp->buf, hpp->size,
+					 " %6.2f%%", percent);
+			slsmg_printf("%s", hpp->buf);
+
+			prev_idx = perf_evsel__group_idx(evsel);
+		}
+
+		idx_delta = nr_members - prev_idx - 1;
+
+		while (idx_delta--) {
+			/*
+			 * zero-fill group members at last which have no sample
+			 */
+			ui_browser__set_percent_color(arg->b, 0.0,
+						      arg->current_entry);
+			ret += scnprintf(hpp->buf, hpp->size,
+					 " %6.2f%%", 0.0);
+			slsmg_printf("%s", hpp->buf);
+		}
+	}
+out:
 	if (!arg->current_entry || !arg->b->navkeypressed)
 		ui_browser__set_color(arg->b, HE_COLORSET_NORMAL);
 
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