linux-kernel - [PATCH 07/15] perf sched map: Always show task comm with -v

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Message-Id: <1477600855-27580-8-git-send-email-acme@kernel.org>
Date:   Thu, 27 Oct 2016 18:40:47 -0200
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     linux-kernel@...r.kernel.org, Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 07/15] perf sched map: Always show task comm with -v

From: Namhyung Kim <namhyung@...nel.org>

I'd like to see the name of tasks with perf sched map, but it only shows
name of new tasks and then use short names after all.  This is not good
for long running tasks since it's hard for users to track the short
names.  This patch makes it show the names (except the idle task) when
-v option is used.  Probably we may make it as default behavior.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Acked-by: Jiri Olsa <jolsa@...nel.org>
Cc: David Ahern <dsahern@...il.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/20161024020246.14928-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-sched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index a8ad85914466..1f33d15314a5 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1493,7 +1493,7 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel,
 		goto out;
 
 	color_fprintf(stdout, color, "  %12.6f secs ", (double)timestamp / NSEC_PER_SEC);
-	if (new_shortname) {
+	if (new_shortname || (verbose && sched_in->tid)) {
 		const char *pid_color = color;
 
 		if (thread__has_color(sched_in))
-- 
2.7.4