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Commit 702fb9b4 authored by Andi Kleen's avatar Andi Kleen Committed by Arnaldo Carvalho de Melo
Browse files

perf report: Show all sort keys in help output 



Show all the supported sort keys in the command line help output, so
that it's not needed to refer to the manpage.

Before:

  % perf report -h
  ...
       -s, --sort <key[,key2...]>
                            sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ... Please refer the man page for the complete list.

After:

  % perf report -h
  ...
      -s, --sort <key[,key2...]>
                            sort by key(s): overhead overhead_sys overhead_us overhead_guest_sys overhead_guest_us overhead_children sample period pid comm dso symbol parent cpu ...

Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
LPU-Reference: 20190314225002.30108-5-andi@firstfloor.org
Link: https://lkml.kernel.org/n/tip-9r3uz2ch4izoi1uln3f889co@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent c38dab7d

tools/perf/builtin-report.c

+2 −3
Original line number Diff line number Diff line
@@ -1083,10 +1083,9 @@ int cmd_report(int argc, const char **argv) 
	OPT_BOOLEAN(0, "header-only", &report.header_only,

		    "Show only data header."),

	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."),

		   sort_help("sort by key(s):")),

	OPT_STRING('F', "fields", &field_order, "key[,keys...]",

		   "output field(s): overhead, period, sample plus all of sort keys"),

		   sort_help("output field(s): overhead period sample ")),

	OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization,

		    "Show sample percentage for different cpu modes"),

	OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,

tools/perf/util/sort.c

+52 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include "evsel.h"

#include "evlist.h"

#include "strlist.h"

#include "strbuf.h"

#include <traceevent/event-parse.h>

#include "mem-events.h"

#include "annotate.h"
@@ -3107,3 +3108,54 @@ void reset_output_field(void) 
	reset_dimensions();

	perf_hpp__reset_output_field(&perf_hpp_list);

}



#define INDENT (3*8 + 1)



static void add_key(struct strbuf *sb, const char *str, int *llen)

{

	if (*llen >= 75) {

		strbuf_addstr(sb, "\n\t\t\t ");

		*llen = INDENT;

	}

	strbuf_addf(sb, " %s", str);

	*llen += strlen(str) + 1;

}



static void add_sort_string(struct strbuf *sb, struct sort_dimension *s, int n,

			    int *llen)

{

	int i;



	for (i = 0; i < n; i++)

		add_key(sb, s[i].name, llen);

}



static void add_hpp_sort_string(struct strbuf *sb, struct hpp_dimension *s, int n,

				int *llen)

{

	int i;



	for (i = 0; i < n; i++)

		add_key(sb, s[i].name, llen);

}



const char *sort_help(const char *prefix)

{

	struct strbuf sb;

	char *s;

	int len = strlen(prefix) + INDENT;



	strbuf_init(&sb, 300);

	strbuf_addstr(&sb, prefix);

	add_hpp_sort_string(&sb, hpp_sort_dimensions,

			    ARRAY_SIZE(hpp_sort_dimensions), &len);

	add_sort_string(&sb, common_sort_dimensions,

			    ARRAY_SIZE(common_sort_dimensions), &len);

	add_sort_string(&sb, bstack_sort_dimensions,

			    ARRAY_SIZE(bstack_sort_dimensions), &len);

	add_sort_string(&sb, memory_sort_dimensions,

			    ARRAY_SIZE(memory_sort_dimensions), &len);

	s = strbuf_detach(&sb, NULL);

	strbuf_release(&sb);

	return s;

}

tools/perf/util/sort.h

+2 −0
Original line number Diff line number Diff line
@@ -296,6 +296,8 @@ void reset_output_field(void); 
void sort__setup_elide(FILE *fp);

void perf_hpp__set_elide(int idx, bool elide);



const char *sort_help(const char *prefix);



int report_parse_ignore_callees_opt(const struct option *opt, const char *arg, int unset);



bool is_strict_order(const char *order);