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>
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@ -116,6 +116,15 @@ Default is to monitor all CPUS.
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local_weight, abort, in_tx, transaction, overhead, sample, period.
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Please see description of --sort in the perf-report man page.
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--fields=::
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Specify output field - multiple keys can be specified in CSV format.
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Following fields are available:
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overhead, overhead_sys, overhead_us, sample and period.
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Also it can contain any sort key(s).
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By default, every sort keys not specified in --field will be appended
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automatically.
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-n::
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--show-nr-samples::
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Show a column with the number of samples.
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@ -1085,6 +1085,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
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OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
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"sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
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" Please refer the man page for the complete list."),
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OPT_STRING(0, "fields", &field_order, "key[,keys...]",
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"output field(s): overhead, period, sample plus all of sort keys"),
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OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
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"Show a column with the number of samples"),
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OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts,
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@ -1138,16 +1140,17 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
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usage_with_options(top_usage, options);
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sort__mode = SORT_MODE__TOP;
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if (setup_sorting() < 0) {
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parse_options_usage(top_usage, options, "s", 1);
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goto out_delete_evlist;
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}
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/* display thread wants entries to be collapsed in a different tree */
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sort__need_collapse = 1;
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perf_hpp__init();
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if (setup_sorting() < 0) {
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if (sort_order)
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parse_options_usage(top_usage, options, "s", 1);
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if (field_order)
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parse_options_usage(sort_order ? NULL : top_usage,
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options, "fields", 0);
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goto out_delete_evlist;
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}
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if (top.use_stdio)
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use_browser = 0;
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