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perf tools: Fix attributes for '{}' defined event groups

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Fixing events attributes for groups defined via '{}'.

Currently 'enable_on_exec' attribute in record command and both
'disabled ' and 'enable_on_exec' attributes in stat command are set
based on the 'group' option. This eliminates proper setup for '{}'
defined groups as they don't set 'group' option.

Making above attributes values based on the 'evsel->leader' as this is
common to both group definition.

Moving perf_evlist__set_leader call within builtin-record ahead
perf_evlist__config_attrs call, because the latter needs possible group
leader links in place.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1352741644-16809-2-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2012-11-12 18:34:00 +01:00 committed by Arnaldo Carvalho de Melo
parent 6064803313
commit cac2142557
8 changed files with 20 additions and 28 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
tools/perf/builtin-record.c
View file

@ -230,11 +230,15 @@ static int perf_record__open(struct perf_record *rec)
struct perf_record_opts *opts = &rec->opts;
int rc = 0;
perf_evlist__config_attrs(evlist, opts);
/*
* Set the evsel leader links before we configure attributes,
* since some might depend on this info.
*/
if (opts->group)
perf_evlist__set_leader(evlist);
perf_evlist__config_attrs(evlist, opts);
list_for_each_entry(pos, &evlist->entries, node) {
struct perf_event_attr *attr = &pos->attr;
/*

11
tools/perf/builtin-stat.c
View file

@ -129,8 +129,7 @@ static struct stats runtime_itlb_cache_stats[MAX_NR_CPUS];
static struct stats runtime_dtlb_cache_stats[MAX_NR_CPUS];
static struct stats walltime_nsecs_stats;
static int create_perf_stat_counter(struct perf_evsel *evsel,
struct perf_evsel *first)
static int create_perf_stat_counter(struct perf_evsel *evsel)
{
struct perf_event_attr *attr = &evsel->attr;
bool exclude_guest_missing = false;
@ -153,7 +152,7 @@ static int create_perf_stat_counter(struct perf_evsel *evsel,
return 0;
}
if (!perf_target__has_task(&target) && (!group || evsel == first)) {
if (!perf_target__has_task(&target) && (!evsel->leader)) {
attr->disabled = 1;
attr->enable_on_exec = 1;
}
@ -272,7 +271,7 @@ static int read_counter(struct perf_evsel *counter)
static int __run_perf_stat(int argc __maybe_unused, const char **argv)
{
unsigned long long t0, t1;
struct perf_evsel *counter, *first;
struct perf_evsel *counter;
int status = 0;
int child_ready_pipe[2], go_pipe[2];
const bool forks = (argc > 0);
@ -332,10 +331,8 @@ static int __run_perf_stat(int argc __maybe_unused, const char **argv)
if (group)
perf_evlist__set_leader(evsel_list);
first = perf_evlist__first(evsel_list);
list_for_each_entry(counter, &evsel_list->entries, node) {
if (create_perf_stat_counter(counter, first) < 0) {
if (create_perf_stat_counter(counter) < 0) {
/*
* PPC returns ENXIO for HW counters until 2.6.37
* (behavior changed with commit b0a873e).

4
tools/perf/tests/attr/test-record-group1
View file

@ -15,6 +15,4 @@ config=1
sample_type=327
mmap=0
comm=0
# TODO this is disabled for --group option, enabled otherwise
# check why..
enable_on_exec=1
enable_on_exec=0

6
tools/perf/tests/attr/test-stat-group1
View file

@ -11,7 +11,5 @@ group_fd=-1
fd=2
group_fd=1
config=1
# TODO both disabled and enable_on_exec are disabled for --group option,
# enabled otherwise, check why..
disabled=1
enable_on_exec=1
disabled=0
enable_on_exec=0

2
tools/perf/tests/open-syscall-tp-fields.c
View file

@ -41,7 +41,7 @@ int test__syscall_open_tp_fields(void)
goto out_delete_evlist;
}
perf_evsel__config(evsel, &opts, evsel);
perf_evsel__config(evsel, &opts);
evlist->threads->map[0] = getpid();

6
tools/perf/util/evlist.c
View file

@ -52,15 +52,13 @@ struct perf_evlist *perf_evlist__new(struct cpu_map *cpus,
void perf_evlist__config_attrs(struct perf_evlist *evlist,
struct perf_record_opts *opts)
{
struct perf_evsel *evsel, *first;
struct perf_evsel *evsel;
if (evlist->cpus->map[0] < 0)
opts->no_inherit = true;
first = perf_evlist__first(evlist);
list_for_each_entry(evsel, &evlist->entries, node) {
perf_evsel__config(evsel, opts, first);
perf_evsel__config(evsel, opts);
if (evlist->nr_entries > 1)
evsel->attr.sample_type |= PERF_SAMPLE_ID;

8
tools/perf/util/evsel.c
View file

@ -404,8 +404,8 @@ const char *perf_evsel__name(struct perf_evsel *evsel)
return evsel->name ?: "unknown";
}
void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts,
struct perf_evsel *first)
void perf_evsel__config(struct perf_evsel *evsel,
struct perf_record_opts *opts)
{
struct perf_event_attr *attr = &evsel->attr;
int track = !evsel->idx; /* only the first counter needs these */
@ -486,10 +486,8 @@ void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts,
attr->mmap = track;
attr->comm = track;
if (perf_target__none(&opts->target) &&
(!opts->group || evsel == first)) {
if (perf_target__none(&opts->target) && (!evsel->leader))
attr->enable_on_exec = 1;
}
}
int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)

3
tools/perf/util/evsel.h
View file

@ -92,8 +92,7 @@ void perf_evsel__exit(struct perf_evsel *evsel);
void perf_evsel__delete(struct perf_evsel *evsel);
void perf_evsel__config(struct perf_evsel *evsel,
struct perf_record_opts *opts,
struct perf_evsel *first);
struct perf_record_opts *opts);
bool perf_evsel__is_cache_op_valid(u8 type, u8 op);