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Message-Id: <20190814184051.3125-8-acme@kernel.org>
Date: Wed, 14 Aug 2019 15:40:30 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ingo Molnar <mingo@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>
Cc: Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
Clark Williams <williams@...hat.com>,
linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Adrian Hunter <adrian.hunter@...el.com>
Subject: [PATCH 07/28] perf top: Set display thread COMM to help with debugging
From: Arnaldo Carvalho de Melo <acme@...hat.com>
When we want to attach just to the thread that updates the display it
helps having its COMM stand out, so change it from the default "perf" to
"perf-top-UI".
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Link: https://lkml.kernel.org/n/tip-5w0hmlk3zfvysxvpsh763k9w@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/builtin-top.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 1a4615a5f6c9..94e34853a238 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -601,6 +601,8 @@ static void *display_thread_tui(void *arg)
*/
unshare(CLONE_FS);
+ prctl(PR_SET_NAME, "perf-top-UI", 0, 0, 0);
+
perf_top__sort_new_samples(top);
/*
@@ -651,6 +653,8 @@ static void *display_thread(void *arg)
*/
unshare(CLONE_FS);
+ prctl(PR_SET_NAME, "perf-top-UI", 0, 0, 0);
+
display_setup_sig();
pthread__unblock_sigwinch();
repeat:
--
2.21.0
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