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perf hists: Check if accumulated when adding a hist entry

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To support callchain accumulation, @entry should be recognized if it's
accumulated or not when add_hist_entry() called.  The period of an
accumulated entry should be added to ->stat_acc but not ->stat. Add
@sample_self arg for that.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arun Sharma <asharma@fb.com>
Tested-by: Rodrigo Campos <rodrigo@sdfg.com.ar>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1401335910-16832-5-git-send-email-namhyung@kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
This commit is contained in:
Namhyung Kim 2012-09-11 13:34:27 +09:00 committed by Jiri Olsa
parent f8be1c8c48
commit a0b51af367
6 changed files with 26 additions and 17 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

3
tools/perf/builtin-annotate.c
View file

@ -65,7 +65,8 @@ static int perf_evsel__add_sample(struct perf_evsel *evsel,
return 0;
}
he = __hists__add_entry(&evsel->hists, al, NULL, NULL, NULL, 1, 1, 0);
he = __hists__add_entry(&evsel->hists, al, NULL, NULL, NULL, 1, 1, 0,
true);
if (he == NULL)
return -ENOMEM;

2
tools/perf/builtin-diff.c
View file

@ -315,7 +315,7 @@ static int hists__add_entry(struct hists *hists,
u64 weight, u64 transaction)
{
if (__hists__add_entry(hists, al, NULL, NULL, NULL, period, weight,
transaction) != NULL)
transaction, true) != NULL)
return 0;
return -ENOMEM;
}

2
tools/perf/builtin-top.c
View file

@ -247,7 +247,7 @@ static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel,
pthread_mutex_lock(&evsel->hists.lock);
he = __hists__add_entry(&evsel->hists, al, NULL, NULL, NULL,
sample->period, sample->weight,
sample->transaction);
sample->transaction, true);
pthread_mutex_unlock(&evsel->hists.lock);
if (he == NULL)
return NULL;

4
tools/perf/tests/hists_link.c
View file

@ -88,7 +88,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
goto out;
he = __hists__add_entry(&evsel->hists, &al, NULL,
NULL, NULL, 1, 1, 0);
NULL, NULL, 1, 1, 0, true);
if (he == NULL)
goto out;
@ -112,7 +112,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
goto out;
he = __hists__add_entry(&evsel->hists, &al, NULL,
NULL, NULL, 1, 1, 0);
NULL, NULL, 1, 1, 0, true);
if (he == NULL)
goto out;

29
tools/perf/util/hist.c
View file

@ -279,7 +279,8 @@ void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel)
* histogram, sorted on item, collects periods
*/
static struct hist_entry *hist_entry__new(struct hist_entry *template)
static struct hist_entry *hist_entry__new(struct hist_entry *template,
bool sample_self)
{
size_t callchain_size = 0;
struct hist_entry *he;
@ -299,6 +300,8 @@ static struct hist_entry *hist_entry__new(struct hist_entry *template)
return NULL;
}
memcpy(he->stat_acc, &he->stat, sizeof(he->stat));
if (!sample_self)
memset(&he->stat, 0, sizeof(he->stat));
}
if (he->ms.map)
@ -351,7 +354,8 @@ static u8 symbol__parent_filter(const struct symbol *parent)
static struct hist_entry *add_hist_entry(struct hists *hists,
struct hist_entry *entry,
struct addr_location *al)
struct addr_location *al,
bool sample_self)
{
struct rb_node **p;
struct rb_node *parent = NULL;
@ -375,7 +379,8 @@ static struct hist_entry *add_hist_entry(struct hists *hists,
cmp = hist_entry__cmp(he, entry);
if (!cmp) {
he_stat__add_period(&he->stat, period, weight);
if (sample_self)
he_stat__add_period(&he->stat, period, weight);
if (symbol_conf.cumulate_callchain)
he_stat__add_period(he->stat_acc, period, weight);
@ -405,14 +410,15 @@ static struct hist_entry *add_hist_entry(struct hists *hists,
p = &(*p)->rb_right;
}
he = hist_entry__new(entry);
he = hist_entry__new(entry, sample_self);
if (!he)
return NULL;
rb_link_node(&he->rb_node_in, parent, p);
rb_insert_color(&he->rb_node_in, hists->entries_in);
out:
he_stat__add_cpumode_period(&he->stat, al->cpumode, period);
if (sample_self)
he_stat__add_cpumode_period(&he->stat, al->cpumode, period);
if (symbol_conf.cumulate_callchain)
he_stat__add_cpumode_period(he->stat_acc, al->cpumode, period);
return he;
@ -423,7 +429,8 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
struct symbol *sym_parent,
struct branch_info *bi,
struct mem_info *mi,
u64 period, u64 weight, u64 transaction)
u64 period, u64 weight, u64 transaction,
bool sample_self)
{
struct hist_entry entry = {
.thread = al->thread,
@ -448,7 +455,7 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
.transaction = transaction,
};
return add_hist_entry(hists, &entry, al);
return add_hist_entry(hists, &entry, al, sample_self);
}
static int
@ -501,7 +508,7 @@ iter_add_single_mem_entry(struct hist_entry_iter *iter, struct addr_location *al
* and the he_stat__add_period() function.
*/
he = __hists__add_entry(&iter->evsel->hists, al, iter->parent, NULL, mi,
cost, cost, 0);
cost, cost, 0, true);
if (!he)
return -ENOMEM;
@ -608,7 +615,7 @@ iter_add_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *a
* and not events sampled. Thus we use a pseudo period of 1.
*/
he = __hists__add_entry(&evsel->hists, al, iter->parent, &bi[i], NULL,
1, 1, 0);
1, 1, 0, true);
if (he == NULL)
return -ENOMEM;
@ -657,7 +664,7 @@ iter_add_single_normal_entry(struct hist_entry_iter *iter, struct addr_location
he = __hists__add_entry(&evsel->hists, al, iter->parent, NULL, NULL,
sample->period, sample->weight,
sample->transaction);
sample->transaction, true);
if (he == NULL)
return -ENOMEM;
@ -1161,7 +1168,7 @@ static struct hist_entry *hists__add_dummy_entry(struct hists *hists,
p = &(*p)->rb_right;
}
he = hist_entry__new(pair);
he = hist_entry__new(pair, true);
if (he) {
memset(&he->stat, 0, sizeof(he->stat));
he->hists = hists;

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

@ -130,7 +130,8 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
struct symbol *parent,
struct branch_info *bi,
struct mem_info *mi, u64 period,
u64 weight, u64 transaction);
u64 weight, u64 transaction,
bool sample_self);
int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al,
struct perf_evsel *evsel, struct perf_sample *sample,
int max_stack_depth);