perf top: Add --fields option to specify output fields
The --fields option is to allow user setup output field in any order.
It can receive any sort keys and following (hpp) fields:
overhead, overhead_sys, overhead_us, sample and period
If guest profiling is enabled, overhead_guest_{sys,us} will be
available too.
More more information, please see previous patch "perf report:
Add -F option to specify output fields"
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1400480762-22852-15-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 280945b..5b389ce 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1085,6 +1085,8 @@
OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
"sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
" Please refer the man page for the complete list."),
+ OPT_STRING(0, "fields", &field_order, "key[,keys...]",
+ "output field(s): overhead, period, sample plus all of sort keys"),
OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
"Show a column with the number of samples"),
OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts,
@@ -1138,16 +1140,17 @@
usage_with_options(top_usage, options);
sort__mode = SORT_MODE__TOP;
-
- if (setup_sorting() < 0) {
- parse_options_usage(top_usage, options, "s", 1);
- goto out_delete_evlist;
- }
-
/* display thread wants entries to be collapsed in a different tree */
sort__need_collapse = 1;
- perf_hpp__init();
+ if (setup_sorting() < 0) {
+ if (sort_order)
+ parse_options_usage(top_usage, options, "s", 1);
+ if (field_order)
+ parse_options_usage(sort_order ? NULL : top_usage,
+ options, "fields", 0);
+ goto out_delete_evlist;
+ }
if (top.use_stdio)
use_browser = 0;