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 v7 16/18] perf ftrace: add option --tid to filter by thread id
Date: Sat, 18 Jul 2020 14:48:24 +0800 [thread overview]
Message-ID: <20200718064826.9865-17-changbin.du@gmail.com> (raw)
In-Reply-To: <20200718064826.9865-1-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 | 3 +++
tools/perf/builtin-ftrace.c | 3 +++
2 files changed, 6 insertions(+)
diff --git a/tools/perf/Documentation/perf-ftrace.txt b/tools/perf/Documentation/perf-ftrace.txt
index 077249c979f2..546a8cd01b7e 100644
--- a/tools/perf/Documentation/perf-ftrace.txt
+++ b/tools/perf/Documentation/perf-ftrace.txt
@@ -38,6 +38,9 @@ OPTIONS
--pid=::
Trace on existing process id (comma separated list).
+--tid=::
+ Trace on existing thread id (comma separated list).
+
-D::
--delay::
Time (ms) to wait before starting tracing after program start.
diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c
index 64b68331048a..b07f71722b97 100644
--- a/tools/perf/builtin-ftrace.c
+++ b/tools/perf/builtin-ftrace.c
@@ -794,6 +794,9 @@ 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"),
+ /* TODO: Add short option -t after -t/--tracer can be removed. */
+ OPT_STRING(0, "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
next prev parent reply other threads:[~2020-07-18 6:51 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-18 6:48 [PATCH v7 00/18] perf: ftrace enhancement Changbin Du
2020-07-18 6:48 ` [PATCH v7 01/18] perf ftrace: select function/function_graph tracer automatically Changbin Du
2020-08-04 12:51 ` Arnaldo Carvalho de Melo
2020-08-06 0:14 ` Changbin Du
2020-08-06 1:05 ` Arnaldo Carvalho de Melo
2020-08-08 2:22 ` Changbin Du
2020-07-18 6:48 ` [PATCH v7 02/18] perf ftrace: add option '-F/--funcs' to list available functions Changbin Du
2020-07-18 6:48 ` [PATCH v7 03/18] perf ftrace: factor out function write_tracing_file_int() Changbin Du
2020-07-18 6:48 ` [PATCH v7 04/18] perf ftrace: add option '-m/--buffer-size' to set per-cpu buffer size Changbin Du
2020-07-18 6:48 ` [PATCH v7 05/18] perf ftrace: show trace column header Changbin Du
2020-07-18 6:48 ` [PATCH v7 06/18] perf ftrace: add option '--inherit' to trace children processes Changbin Du
2020-07-18 6:48 ` [PATCH v7 07/18] perf: util: add general function to parse sublevel options Changbin Du
2020-07-18 6:48 ` [PATCH v7 08/18] perf ftrace: add support for tracing option 'func_stack_trace' Changbin Du
2020-07-18 6:48 ` [PATCH v7 09/18] perf ftrace: add support for trace option sleep-time Changbin Du
2020-07-18 6:48 ` [PATCH v7 10/18] perf ftrace: add support for trace option funcgraph-irqs Changbin Du
2020-07-18 6:48 ` [PATCH v7 11/18] perf ftrace: add support for tracing option 'irq-info' Changbin Du
2020-07-18 6:48 ` [PATCH v7 12/18] perf ftrace: add option 'verbose' to show more info for graph tracer Changbin Du
2020-07-18 6:48 ` [PATCH v7 13/18] perf ftrace: add support for trace option tracing_thresh Changbin Du
2020-07-18 6:48 ` [PATCH v7 14/18] perf: ftrace: allow set graph depth by '--graph-opts' Changbin Du
2020-07-18 6:48 ` [PATCH v7 15/18] perf ftrace: add option -D/--delay to delay tracing Changbin Du
2020-07-18 6:48 ` Changbin Du [this message]
2020-07-18 6:48 ` [PATCH v7 17/18] perf: ftrace: Add set_tracing_options() to set all trace options Changbin Du
2020-07-18 6:48 ` [PATCH v7 18/18] perf ftrace: add change log Changbin Du
2020-07-21 13:39 ` [PATCH v7 00/18] perf: ftrace enhancement Namhyung Kim
2020-07-31 17:35 ` Changbin Du
2020-07-31 22:42 ` Arnaldo Carvalho de Melo
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