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authorArnaldo Carvalho de Melo <acme@redhat.com>2019-08-06 11:20:42 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-08-12 16:26:02 -0300
commit1205a2719e52b6b52e0f9c0011554419da0377a0 (patch)
treecde8b1a9d9e881e14ab54b731f4141bcaa8836e8 /tools/perf/builtin-top.c
parentperf vendor events intel: Add Icelake V1.00 event file (diff)
downloadlinux-dev-1205a2719e52b6b52e0f9c0011554419da0377a0.tar.xz
linux-dev-1205a2719e52b6b52e0f9c0011554419da0377a0.zip
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 <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>
Diffstat (limited to 'tools/perf/builtin-top.c')
-rw-r--r--tools/perf/builtin-top.c4
1 files changed, 4 insertions, 0 deletions
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: