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From: Changbin Du <changbin.du@gmail.com>
To: Jiri Olsa <jolsa@redhat.com>, Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	linux-kernel@vger.kernel.org, Changbin Du <changbin.du@gmail.com>
Subject: [PATCH v3 03/17] perf ftrace: add option -t/--tid to filter by thread id
Date: Thu,  9 Jul 2020 00:45:51 +0800	[thread overview]
Message-ID: <20200708164605.31245-4-changbin.du@gmail.com> (raw)
In-Reply-To: <20200708164605.31245-1-changbin.du@gmail.com>

This allows us to trace single thread instead of the whole process.

Signed-off-by: Changbin Du <changbin.du@gmail.com>
---
 tools/perf/Documentation/perf-ftrace.txt | 4 ++++
 tools/perf/builtin-ftrace.c              | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/tools/perf/Documentation/perf-ftrace.txt b/tools/perf/Documentation/perf-ftrace.txt
index d79560dea19f..e204bf6d50d8 100644
--- a/tools/perf/Documentation/perf-ftrace.txt
+++ b/tools/perf/Documentation/perf-ftrace.txt
@@ -38,6 +38,10 @@ OPTIONS
 --pid=::
 	Trace on existing process id (comma separated list).
 
+-t::
+--tid=::
+	Trace on existing thread id (comma separated list).
+
 -a::
 --all-cpus::
 	Force system-wide collection.  Scripts run without a <command>
diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c
index 244cc8e6bd60..1188b82c6541 100644
--- a/tools/perf/builtin-ftrace.c
+++ b/tools/perf/builtin-ftrace.c
@@ -515,6 +515,8 @@ int cmd_ftrace(int argc, const char **argv)
 		    "Show available functions to filter"),
 	OPT_STRING('p', "pid", &ftrace.target.pid, "pid",
 		   "trace on existing process id"),
+	OPT_STRING('t', "tid", &ftrace.target.tid, "tid",
+		   "trace on existing thread id (exclusive to --pid)"),
 	OPT_INCR('v', "verbose", &verbose,
 		 "be more verbose"),
 	OPT_BOOLEAN('a', "all-cpus", &ftrace.target.system_wide,
-- 
2.25.1


  parent reply	other threads:[~2020-07-08 16:47 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-08 16:45 [PATCH v3 00/17] perf: ftrace enhancement Changbin Du
2020-07-08 16:45 ` [PATCH v3 01/17] perf ftrace: select function/function_graph tracer automatically Changbin Du
2020-07-08 16:45 ` [PATCH v3 02/17] perf ftrace: add option '-F/--funcs' to list available functions Changbin Du
2020-07-08 16:45 ` Changbin Du [this message]
2020-07-08 16:45 ` [PATCH v3 04/17] perf ftrace: add option -d/--delay to delay tracing Changbin Du
2020-07-08 16:45 ` [PATCH v3 05/17] perf ftrace: factor out function write_tracing_file_int() Changbin Du
2020-07-08 16:45 ` [PATCH v3 06/17] perf ftrace: add option '-m/--buffer-size' to set per-cpu buffer size Changbin Du
2020-07-08 16:45 ` [PATCH v3 07/17] perf ftrace: show trace column header Changbin Du
2020-07-08 16:45 ` [PATCH v3 08/17] perf ftrace: add option '--inherit' to trace children processes Changbin Du
2020-07-08 16:45 ` [PATCH v3 09/17] perf: util: add general function to parse sublevel options Changbin Du
2020-07-08 17:34   ` Arnaldo Carvalho de Melo
2020-07-10 13:14     ` Changbin Du
2020-07-08 16:45 ` [PATCH v3 10/17] perf ftrace: add support for tracing option 'func_stack_trace' Changbin Du
2020-07-08 16:45 ` [PATCH v3 11/17] perf ftrace: add support for trace option sleep-time Changbin Du
2020-07-08 16:46 ` [PATCH v3 12/17] perf ftrace: add support for trace option funcgraph-irqs Changbin Du
2020-07-08 16:46 ` [PATCH v3 13/17] perf ftrace: add support for tracing option 'irq-info' Changbin Du
2020-07-08 16:46 ` [PATCH v3 14/17] perf ftrace: add option 'verbose' to show more info for graph tracer Changbin Du
2020-07-08 16:46 ` [PATCH v3 15/17] perf ftrace: add support for trace option tracing_thresh Changbin Du
2020-07-08 16:46 ` [PATCH v3 16/17] perf: ftrace: allow set graph depth by '--graph-opts' Changbin Du
2020-07-08 16:46 ` [PATCH v3 17/17] perf ftrace: add change log Changbin Du
2020-07-08 17:39 ` [PATCH v3 00/17] perf: ftrace enhancement Arnaldo Carvalho de Melo
2020-07-10 13:35   ` Changbin Du

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