linux-kernel - [PATCH 18/43] perf trace: Filter out gnome-terminal* parent

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Date:   Thu, 14 Feb 2019 21:45:14 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
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>,
        Luis Cláudio Gonçalves 
        <lclaudio@...hat.com>, Wang Nan <wangnan0@...wei.com>
Subject: [PATCH 18/43] perf trace: Filter out gnome-terminal* parent

From: Arnaldo Carvalho de Melo <acme@...hat.com>

Just like it does with 'sshd', to reduce the feedback loop when doing
system wide tracing on on a gnome GUI.

Need to figure out how to auto-filter the calls to other UI components
tho.

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Wang Nan <wangnan0@...wei.com>
Link: https://lkml.kernel.org/n/tip-rjopq5y92itgokppdhe8sc6z@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-trace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index a9b51f59ab54..68a01e624ad3 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2771,7 +2771,8 @@ static int trace__set_filter_loop_pids(struct trace *trace)
 		if (parent == NULL)
 			break;
 
-		if (!strcmp(thread__comm_str(parent), "sshd")) {
+		if (!strcmp(thread__comm_str(parent), "sshd") ||
+		    strstarts(thread__comm_str(parent), "gnome-terminal")) {
 			pids[nr++] = parent->tid;
 			break;
 		}
-- 
2.19.1