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authorNamhyung Kim <namhyung@kernel.org>2016-02-25 00:13:48 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-02-24 20:21:15 -0300
commit4251446d778e669db5ac9f86b02d38064bdbbf9a (patch)
tree2783693542b144a63e6f665eb8ce2c9a63b942e1 /tools
parente311ec1e5df6d5de377e67f704bca43fb023ca5e (diff)
downloadlinux-4251446d778e669db5ac9f86b02d38064bdbbf9a.tar.gz
perf report: Add --hierarchy option
The --hierarchy option is to show output in hierarchy mode. It extends folding/unfolding in the TUI and GTK browsers to support sort items as well as callchains. Users can toggle the items to see the performance result at wanted level. $ perf report --hierarchy --tui Overhead Command / Shared Object / Symbol -------------------------------------------------- + 32.96% gnome-shell - 15.11% swapper - 14.97% [kernel.vmlinux] 6.82% [k] intel_idle 0.66% [k] menu_select 0.43% [k] __hrtimer_start_range_ns ... Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Pekka Enberg <penberg@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1456326830-30456-17-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/Documentation/perf-report.txt3
-rw-r--r--tools/perf/Documentation/tips.txt1
-rw-r--r--tools/perf/builtin-report.c17
3 files changed, 21 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 89cab84e92fd..12113992ac9d 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -401,6 +401,9 @@ include::itrace.txt[]
--raw-trace::
When displaying traceevent output, do not use print fmt or plugins.
+--hierarchy::
+ Enable hierarchical output.
+
include::callchain-overhead-calculation.txt[]
SEE ALSO
diff --git a/tools/perf/Documentation/tips.txt b/tools/perf/Documentation/tips.txt
index e0ce9573b79b..5950b5a24efd 100644
--- a/tools/perf/Documentation/tips.txt
+++ b/tools/perf/Documentation/tips.txt
@@ -27,3 +27,4 @@ Skip collecing build-id when recording: perf record -B
To change sampling frequency to 100 Hz: perf record -F 100
See assembly instructions with percentage: perf annotate <symbol>
If you prefer Intel style assembly, try: perf annotate -M intel
+For hierarchical output, try: perf report --hierarchy
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 760e886ca9d9..f4d8244449ca 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -811,6 +811,8 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
"only show processor socket that match with this filter"),
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()
};
struct perf_data_file file = {
@@ -920,6 +922,21 @@ repeat:
symbol_conf.cumulate_callchain = false;
}
+ 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(report_usage, options, "F", 1);
+ parse_options_usage(NULL, options, "hierarchy", 0);
+ goto error;
+ }
+
+ sort__need_collapse = true;
+ }
+
/* Force tty output for header output and per-thread stat. */
if (report.header || report.header_only || report.show_threads)
use_browser = 0;