diff options
| -rw-r--r-- | tools/perf/Documentation/perf-ftrace.txt | 8 | ||||
| -rw-r--r-- | tools/perf/builtin-ftrace.c | 4 |
2 files changed, 12 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-ftrace.txt b/tools/perf/Documentation/perf-ftrace.txt index eccc0483f7fa..b77f58c4d2fd 100644 --- a/tools/perf/Documentation/perf-ftrace.txt +++ b/tools/perf/Documentation/perf-ftrace.txt @@ -201,6 +201,14 @@ OPTIONS for 'perf ftrace profile' Sort the result by the given field. Available values are: total, avg, max, count, name. Default is 'total'. +--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. + - 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 2a786047ba32..08c1cc429b27 100644 --- a/tools/perf/builtin-ftrace.c +++ b/tools/perf/builtin-ftrace.c @@ -1064,6 +1064,7 @@ static int prepare_func_profile(struct perf_ftrace *ftrace) { ftrace->tracer = "function_graph"; ftrace->graph_tail = 1; + ftrace->graph_verbose = 0; ftrace->profile_hash = hashmap__new(profile_hash, profile_equal, NULL); if (ftrace->profile_hash == NULL) @@ -1650,6 +1651,9 @@ int cmd_ftrace(int argc, const char **argv) OPT_CALLBACK('s', "sort", &profile_sort, "key", "Sort result by key: total (default), avg, max, count, name.", parse_sort_key), + OPT_CALLBACK(0, "graph-opts", &ftrace, "options", + "Graph tracer options, available options: nosleep-time,noirqs,thresh=<n>,depth=<n>", + parse_graph_tracer_opts), OPT_PARENT(common_options), }; const struct option *options = ftrace_options; |