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perf top: Set display thread COMM to help with debugging

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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>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-08-06 11:20:42 -03:00
parent b115df076d
commit 1205a2719e
1 changed files with 4 additions and 0 deletions
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4
tools/perf/builtin-top.c
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@ -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: