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perf report: Add --hierarchy option

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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>
This commit is contained in:
Namhyung Kim
2016-02-25 00:13:48 +09:00
committed by Arnaldo Carvalho de Melo
parent e311ec1e5d
commit 4251446d77
3 changed files with 21 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
tools/perf/Documentation/perf-report.txt
View File

@@ -401,6 +401,9 @@ include::itrace.txt[]
--raw-trace:: --raw-trace::
When displaying traceevent output, do not use print fmt or plugins. When displaying traceevent output, do not use print fmt or plugins.
--hierarchy::
Enable hierarchical output.
include::callchain-overhead-calculation.txt[] include::callchain-overhead-calculation.txt[]
SEE ALSO SEE ALSO

1
tools/perf/Documentation/tips.txt
View File

@@ -27,3 +27,4 @@ Skip collecing build-id when recording: perf record -B
To change sampling frequency to 100 Hz: perf record -F 100 To change sampling frequency to 100 Hz: perf record -F 100
See assembly instructions with percentage: perf annotate <symbol> See assembly instructions with percentage: perf annotate <symbol>
If you prefer Intel style assembly, try: perf annotate -M intel If you prefer Intel style assembly, try: perf annotate -M intel
For hierarchical output, try: perf report --hierarchy

17
tools/perf/builtin-report.c
View File

@@ -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"), "only show processor socket that match with this filter"),
OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
"Show raw trace event output (do not use print fmt or plugins)"), "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() OPT_END()
}; };
struct perf_data_file file = { struct perf_data_file file = {
@@ -920,6 +922,21 @@ repeat:
symbol_conf.cumulate_callchain = false; 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. */ /* Force tty output for header output and per-thread stat. */
if (report.header || report.header_only || report.show_threads) if (report.header || report.header_only || report.show_threads)
use_browser = 0; use_browser = 0;