[PATCH v6 25/25] perf top: Add --hierarchy option

Namhyung Kim
2016-02-16T14:11:38Z

Support hierarchy output for perf-top using --hierarchy option.

Acked-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/Documentation/perf-top.txt | 3 +++
tools/perf/builtin-top.c | 15 +++++++++++++++
2 files changed, 18 insertions(+)

diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index b0e60e17db38..19f046f027cd 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -233,6 +233,9 @@ Default is to monitor all CPUS.
--raw-trace::
When displaying traceevent output, do not use print fmt or plugins.

+--hierarchy::
+ Enable hierarchy output.
+
INTERACTIVE PROMPTING KEYS
--------------------------

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index a75de3940b97..b86b623e8799 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1214,6 +1214,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
parse_branch_stack),
OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
"Show raw trace event output (do not use print fmt or plugins)"),
+ OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
+ "Show entries in a hierarchy"),
OPT_END()
};
const char * const top_usage[] = {
@@ -1241,6 +1243,19 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
goto out_delete_evlist;
}

+ if (symbol_conf.report_hierarchy) {
+ /* disable incompatible options */
+ symbol_conf.event_group = false;
+ symbol_conf.cumulate_callchain = false;
+
+ if (field_order) {
+ pr_err("Error: --hierarchy and --fields options cannot be used together\n");
+ parse_options_usage(top_usage, options, "fields", 0);
+ parse_options_usage(NULL, options, "hierarchy", 0);
+ goto out_delete_evlist;
+ }
+ }
+
sort__mode = SORT_MODE__TOP;
/* display thread wants entries to be collapsed in a different tree */
sort__need_collapse = 1;
--
2.7.1