File perf-top-set-display-thread-comm-to-help-with-debugging.patch of Package perf.23962
From: Arnaldo Carvalho de Melo <acme@redhat.com> Date: Tue, 6 Aug 2019 11:20:42 -0300 Subject: perf top: Set display thread COMM to help with debugging Git-commit: 1205a2719e52b6b52e0f9c0011554419da0377a0 Patch-mainline: v5.4-rc1 References: jsc#SLE-12726 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@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-5w0hmlk3zfvysxvpsh763k9w@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Tony Jones <tonyj@suse.de> --- 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:
