From 1205a2719e52b6b52e0f9c0011554419da0377a0 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 6 Aug 2019 11:20:42 -0300 Subject: [PATCH] perf top: Set display thread COMM to help with debugging 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 Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-5w0hmlk3zfvysxvpsh763k9w@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- 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 1a4615a5..94e3485 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: -- 2.7.4