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| author | Changbin Du <changbin.du@gmail.com> | 2020-08-08 04:31:37 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-08-14 14:33:38 +0200 |
| commit | a8f87a5cb466888bb70330b9ba55cdc0b9a1c20e (patch) | |
| tree | c41e6dbebf8aff527afa48ce52749c09da495642 /tools | |
| parent | perf ftrace: Add support for trace option tracing_thresh (diff) | |
| download | linux-a8f87a5cb466888bb70330b9ba55cdc0b9a1c20e.tar.xz linux-a8f87a5cb466888bb70330b9ba55cdc0b9a1c20e.zip | |
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.txt | 5 | ||||
| -rw-r--r-- | tools/perf/builtin-ftrace.c | 5 |
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), |