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Subject[PATCH 12/13] perf top: Add --fields option to specify output fields
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The --fields option is to allow user setup output field in any order.
It can recieve 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>
---
tools/perf/Documentation/perf-top.txt | 9 +++++++++
tools/perf/builtin-top.c | 7 +++++++
2 files changed, 16 insertions(+)

diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index 0acf54f203f0..50fcf97a7dc9 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -116,6 +116,15 @@ Default is to monitor all CPUS.
Sort by key(s): pid, comm, dso, symbol, parent, srcline, weight,
local_weight, abort, in_tx, transaction

+--fields=::
+ Specify output field - multiple keys can be specified in CSV format.
+ Following fields are available:
+ overhead, overhead_sys, overhead_us, sample and period.
+ Also it can contain any sort key(s).
+
+ By default, every sort keys not specified in --field will be appended
+ automatically.
+
-n::
--show-nr-samples::
Show a column with the number of samples.
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index bb2aa6645a7e..dcda6d5e320b 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1085,6 +1085,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
"sort by key(s): pid, comm, dso, symbol, parent, weight, local_weight,"
" abort, in_tx, transaction"),
+ 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,
@@ -1203,6 +1205,11 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)

sort__setup_elide(stdout);

+ if (setup_output_field() < 0) {
+ parse_options_usage(top_usage, options, "F", 1);
+ goto out_delete_evlist;
+ }
+
get_term_dimensions(&top.winsize);
if (top.print_entries == 0) {
struct sigaction act = {
--
1.7.11.7


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