perf_counter tools: Add 'perf list' to list available events

perf list: List all the available event types which can be used in
-e (--event) options.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner 2009-06-06 12:24:17 +02:00 committed by Ingo Molnar
parent 8326f44da0
commit 86847b62f0
9 changed files with 61 additions and 34 deletions

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@ -328,6 +328,7 @@ BUILTIN_OBJS += builtin-record.o
BUILTIN_OBJS += builtin-report.o
BUILTIN_OBJS += builtin-stat.o
BUILTIN_OBJS += builtin-top.o
BUILTIN_OBJS += builtin-list.o
PERFLIBS = $(LIB_FILE)
EXTLIBS =

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@ -0,0 +1,20 @@
/*
* builtin-list.c
*
* Builtin list command: list all event types
*
* Copyright (C) 2009, Thomas Gleixner <tglx@linutronix.de>
* Copyright (C) 2008-2009, Red Hat Inc, Ingo Molnar <mingo@redhat.com>
*/
#include "builtin.h"
#include "perf.h"
#include "util/parse-options.h"
#include "util/parse-events.h"
int cmd_list(int argc, const char **argv, const char *prefix)
{
print_events();
return 0;
}

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@ -495,11 +495,10 @@ static const char * const record_usage[] = {
NULL
};
static char events_help_msg[EVENTS_HELP_MAX];
static const struct option options[] = {
OPT_CALLBACK('e', "event", NULL, "event",
events_help_msg, parse_events),
"event selector. use 'perf list' to list available events",
parse_events),
OPT_INTEGER('p', "pid", &target_pid,
"record events on existing pid"),
OPT_INTEGER('r', "realtime", &realtime_prio,
@ -527,8 +526,6 @@ int cmd_record(int argc, const char **argv, const char *prefix)
{
int counter;
create_events_help(events_help_msg);
argc = parse_options(argc, argv, options, record_usage, 0);
if (!argc && target_pid == -1 && !system_wide)
usage_with_options(record_usage, options);

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@ -293,18 +293,17 @@ static const char * const stat_usage[] = {
NULL
};
static char events_help_msg[EVENTS_HELP_MAX];
static const struct option options[] = {
OPT_CALLBACK('e', "event", NULL, "event",
events_help_msg, parse_events),
"event selector. use 'perf list' to list available events",
parse_events),
OPT_BOOLEAN('i', "inherit", &inherit,
"child tasks inherit counters"),
OPT_INTEGER('p', "pid", &target_pid,
"stat events on existing pid"),
OPT_BOOLEAN('a', "all-cpus", &system_wide,
"system-wide collection from all CPUs"),
OPT_BOOLEAN('l', "scale", &scale,
OPT_BOOLEAN('S', "scale", &scale,
"scale/normalize counters"),
OPT_END()
};
@ -313,8 +312,6 @@ int cmd_stat(int argc, const char **argv, const char *prefix)
{
page_size = sysconf(_SC_PAGE_SIZE);
create_events_help(events_help_msg);
memcpy(attrs, default_attrs, sizeof(attrs));
argc = parse_options(argc, argv, options, stat_usage, 0);

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@ -606,11 +606,10 @@ static const char * const top_usage[] = {
NULL
};
static char events_help_msg[EVENTS_HELP_MAX];
static const struct option options[] = {
OPT_CALLBACK('e', "event", NULL, "event",
events_help_msg, parse_events),
"event selector. use 'perf list' to list available events",
parse_events),
OPT_INTEGER('c', "count", &default_interval,
"event period to sample"),
OPT_INTEGER('p', "pid", &target_pid,
@ -648,8 +647,6 @@ int cmd_top(int argc, const char **argv, const char *prefix)
page_size = sysconf(_SC_PAGE_SIZE);
create_events_help(events_help_msg);
argc = parse_options(argc, argv, options, top_usage, 0);
if (argc)
usage_with_options(top_usage, options);

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@ -20,4 +20,6 @@ extern int cmd_report(int argc, const char **argv, const char *prefix);
extern int cmd_stat(int argc, const char **argv, const char *prefix);
extern int cmd_top(int argc, const char **argv, const char *prefix);
extern int cmd_version(int argc, const char **argv, const char *prefix);
extern int cmd_list(int argc, const char **argv, const char *prefix);
#endif

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@ -258,6 +258,7 @@ static void handle_internal_command(int argc, const char **argv)
const char *cmd = argv[0];
static struct cmd_struct commands[] = {
{ "help", cmd_help, 0 },
{ "list", cmd_list, 0 },
{ "record", cmd_record, 0 },
{ "report", cmd_report, 0 },
{ "stat", cmd_stat, 0 },

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@ -274,31 +274,43 @@ again:
return 0;
}
static const char * const event_type_descriptors[] = {
"",
"Hardware event",
"Software event",
"Tracepoint event",
"Hardware cache event",
};
/*
* Create the help text for the event symbols:
* Print the help text for the event symbols:
*/
void create_events_help(char *events_help_msg)
void print_events(void)
{
unsigned int i;
char *str;
struct event_symbol *syms = event_symbols;
unsigned int i, type, prev_type = -1;
str = events_help_msg;
fprintf(stderr, "\n");
fprintf(stderr, "List of pre-defined events (to be used in -e):\n");
str += sprintf(str,
"event name: [");
for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
type = syms->type + 1;
if (type > ARRAY_SIZE(event_type_descriptors))
type = 0;
for (i = 0; i < ARRAY_SIZE(event_symbols); i++) {
int type, id;
if (type != prev_type)
fprintf(stderr, "\n");
type = event_symbols[i].type;
id = event_symbols[i].config;
fprintf(stderr, " %-30s [%s]\n", syms->symbol,
event_type_descriptors[type]);
if (i)
str += sprintf(str, "|");
str += sprintf(str, "%s",
event_symbols[i].symbol);
prev_type = type;
}
str += sprintf(str, "|rNNN]");
fprintf(stderr, "\n");
fprintf(stderr, " %-30s [raw hardware event descriptor]\n",
"rNNN");
fprintf(stderr, "\n");
exit(129);
}

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@ -13,5 +13,5 @@ extern int parse_events(const struct option *opt, const char *str, int unset);
#define EVENTS_HELP_MAX (128*1024)
extern void create_events_help(char *help_msg);
extern void print_events(void);