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authorChangbin Du <changbin.du@gmail.com>2020-08-08 10:31:37 +0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2020-08-14 09:33:38 -0300
commita8f87a5cb466888bb70330b9ba55cdc0b9a1c20e (patch)
treec41e6dbebf8aff527afa48ce52749c09da495642 /tools
parent00c85d5f45b6b366f68c876cd89b8b790f50ea0f (diff)
downloadlinux-a8f87a5cb466888bb70330b9ba55cdc0b9a1c20e.tar.bz2
perf: ftrace: Allow set graph depth by '--graph-opts'
This is to have a consistent view of all graph tracer options. The original option '--graph-depth' is marked as deprecated. Signed-off-by: Changbin Du <changbin.du@gmail.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Link: http://lore.kernel.org/lkml/20200808023141.14227-15-changbin.du@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/Documentation/perf-ftrace.txt5
-rw-r--r--tools/perf/builtin-ftrace.c5
2 files changed, 3 insertions, 7 deletions
diff --git a/tools/perf/Documentation/perf-ftrace.txt b/tools/perf/Documentation/perf-ftrace.txt
index 6fa927e5971b..08216634d2bc 100644
--- a/tools/perf/Documentation/perf-ftrace.txt
+++ b/tools/perf/Documentation/perf-ftrace.txt
@@ -98,16 +98,13 @@ OPTIONS
specify multiple functions. It will be passed to 'set_graph_notrace'
in tracefs.
--D::
---graph-depth=::
- Set max depth for function graph tracer to follow
-
--graph-opts::
List of options allowed to set:
nosleep-time - Measure on-CPU time only for function_graph tracer.
noirqs - Ignore functions that happen inside interrupt.
verbose - Show process names, PIDs, timestamps, etc.
thresh=<n> - Setup trace duration threshold in microseconds.
+ depth=<n> - Set max depth for function graph tracer to follow.
SEE ALSO
--------
diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c
index ca61f8b8bbf6..bc3b35d18167 100644
--- a/tools/perf/builtin-ftrace.c
+++ b/tools/perf/builtin-ftrace.c
@@ -751,6 +751,7 @@ static int parse_graph_tracer_opts(const struct option *opt,
{ .name = "noirqs", .value_ptr = &ftrace->graph_noirqs },
{ .name = "verbose", .value_ptr = &ftrace->graph_verbose },
{ .name = "thresh", .value_ptr = &ftrace->graph_thresh },
+ { .name = "depth", .value_ptr = &ftrace->graph_depth },
{ .name = NULL, }
};
@@ -819,10 +820,8 @@ int cmd_ftrace(int argc, const char **argv)
parse_filter_func),
OPT_CALLBACK('g', "nograph-funcs", &ftrace.nograph_funcs, "func",
"Set nograph filter on given functions", parse_filter_func),
- OPT_INTEGER('D', "graph-depth", &ftrace.graph_depth,
- "Max depth for function graph tracer"),
OPT_CALLBACK(0, "graph-opts", &ftrace, "options",
- "graph tracer options, available options: nosleep-time,noirqs,verbose,thresh=<n>",
+ "graph tracer options, available options: nosleep-time,noirqs,verbose,thresh=<n>,depth=<n>",
parse_graph_tracer_opts),
OPT_CALLBACK('m', "buffer-size", &ftrace.percpu_buffer_size, "size",
"size of per cpu buffer", parse_buffer_size),