From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Rogers <irogers@google.com>
Subject: [PATCH v2 1/7] perf metricgroup: Always place duration_time last
Date: Wed, 20 May 2020 11:20:05 -0700
Message-ID: <20200520182011.32236-2-irogers@google.com>
References: <20200520182011.32236-1-irogers@google.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="UTF-8"
Return-path: <netdev-owner@vger.kernel.org>
In-Reply-To: <20200520182011.32236-1-irogers@google.com>
Sender: netdev-owner@vger.kernel.org
To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Arnaldo Carvalho de Melo <acme@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>, Song Liu <songliubraving@fb.com>, Andrii Nakryiko <andriin@fb.com>, Kajol Jain <kjain@linux.ibm.com>, Andi Kleen <ak@linux.intel.com>, John Garry <john.garry@huawei.com>, Jin Yao <yao.jin@linux.intel.com>, Kan Liang <kan.liang@linux.intel.com>, Cong Wang <xiyou.wangcong@gmail.com>, Kim Phillips <kim.phillips@amd.com>, Paul Clarke <pc@us.ibm.com>, Srikar Dronamraju <srikar@linux.vnet.ibm.com>, linux-kernel@vger.kernel.org
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-perf-users@vger.kernel.org, Vince Weaver <vincent.weaver@maine.edu>, Stephane Eranian <eranian@google.com>, Ian Rogers <irogers@google.com>
List-Id: linux-perf-users.vger.kernel.org

If a metric contains the duration_time event then the event is placed
outside of the metric's group of events. Rather than split the group,
make it so the duration_time is immediately after the group.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/util/metricgroup.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index a16f60da06ab..7a43ee0a2e40 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -410,8 +410,8 @@ static void metricgroup__add_metric_weak_group(struct strbuf *events,
 					       struct expr_parse_ctx *ctx)
 {
 	struct hashmap_entry *cur;
-	size_t bkt, i = 0;
-	bool no_group = false;
+	size_t bkt;
+	bool no_group = true, has_duration = false;
 
 	hashmap__for_each_entry((&ctx->ids), cur, bkt) {
 		pr_debug("found event %s\n", (const char *)cur->key);
@@ -421,20 +421,20 @@ static void metricgroup__add_metric_weak_group(struct strbuf *events,
 		 * group.
 		 */
 		if (!strcmp(cur->key, "duration_time")) {
-			if (i > 0)
-				strbuf_addf(events, "}:W,");
-			strbuf_addf(events, "duration_time");
-			no_group = true;
+			has_duration = true;
 			continue;
 		}
 		strbuf_addf(events, "%s%s",
-			i == 0 || no_group ? "{" : ",",
+			no_group ? "{" : ",",
 			(const char *)cur->key);
 		no_group = false;
-		i++;
 	}
-	if (!no_group)
+	if (!no_group) {
 		strbuf_addf(events, "}:W");
+		if (has_duration)
+			strbuf_addf(events, ",duration_time");
+	} else if (has_duration)
+		strbuf_addf(events, "duration_time");
 }
 
 static void metricgroup__add_metric_non_group(struct strbuf *events,
-- 
2.26.2.761.g0e0b3e54be-goog