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Date: Wed, 18 Dec 2013 14:21:16 +0900
From: Namhyung Kim <namhyung@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Paul Mackerras <paulus@...ba.org>,
Ingo Molnar <mingo@...nel.org>,
Namhyung Kim <namhyung.kim@....com>,
LKML <linux-kernel@...r.kernel.org>,
Frederic Weisbecker <fweisbec@...il.com>,
Arun Sharma <asharma@...com>, Jiri Olsa <jolsa@...hat.com>,
Rodrigo Campos <rodrigo@...g.com.ar>
Subject: [PATCH 08/18] perf hists: Accumulate hist entry stat based on the callchain
From: Namhyung Kim <namhyung.kim@....com>
Call __hists__add_entry() for each callchain node to get an
accumulated stat for an entry. Introduce new cumulative_iter ops to
process them properly.
Cc: Arun Sharma <asharma@...com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
tools/perf/builtin-report.c | 136 +++++++++++++++++++++++++++++++++++++++++++-
tools/perf/ui/stdio/hist.c | 2 +-
2 files changed, 136 insertions(+), 2 deletions(-)
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 4e4572b47e04..3bc48e410d06 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -398,6 +398,130 @@ iter_finish_normal_entry(struct add_entry_iter *iter, struct addr_location *al)
return err;
}
+static int
+iter_prepare_cumulative_entry(struct add_entry_iter *iter,
+ struct machine *machine __maybe_unused,
+ struct perf_evsel *evsel,
+ struct addr_location *al __maybe_unused,
+ struct perf_sample *sample)
+{
+ callchain_cursor_commit(&callchain_cursor);
+
+ iter->evsel = evsel;
+ iter->sample = sample;
+ return 0;
+}
+
+static int
+iter_add_single_cumulative_entry(struct add_entry_iter *iter,
+ struct addr_location *al)
+{
+ struct perf_evsel *evsel = iter->evsel;
+ struct perf_sample *sample = iter->sample;
+ struct hist_entry *he;
+ int err = 0;
+
+ he = __hists__add_entry(&evsel->hists, al, iter->parent, NULL, NULL,
+ sample->period, sample->weight,
+ sample->transaction, true);
+ if (he == NULL)
+ return -ENOMEM;
+
+ /*
+ * This is for putting parents upward during output resort iff
+ * only a child gets sampled. See hist_entry__sort_on_period().
+ */
+ he->callchain->max_depth = PERF_MAX_STACK_DEPTH + 1;
+
+ /*
+ * Only in the TUI browser we are doing integrated annotation,
+ * so we don't allocated the extra space needed because the stdio
+ * code will not use it.
+ */
+ if (sort__has_sym && he->ms.sym && use_browser == 1) {
+ struct annotation *notes = symbol__annotation(he->ms.sym);
+
+ assert(evsel != NULL);
+
+ if (notes->src == NULL && symbol__alloc_hist(he->ms.sym) < 0)
+ return -ENOMEM;
+
+ err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
+ }
+
+ return err;
+}
+
+static int
+iter_next_cumulative_entry(struct add_entry_iter *iter,
+ struct addr_location *al)
+{
+ struct callchain_cursor_node *node;
+
+ node = callchain_cursor_current(&callchain_cursor);
+ if (node == NULL)
+ return 0;
+
+ al->map = node->map;
+ al->sym = node->sym;
+ if (node->map)
+ al->addr = node->map->map_ip(node->map, node->ip);
+ else
+ al->addr = node->ip;
+
+ if (iter->rep->hide_unresolved && al->sym == NULL)
+ return 0;
+
+ callchain_cursor_advance(&callchain_cursor);
+ return 1;
+}
+
+static int
+iter_add_next_cumulative_entry(struct add_entry_iter *iter,
+ struct addr_location *al)
+{
+ struct perf_evsel *evsel = iter->evsel;
+ struct perf_sample *sample = iter->sample;
+ struct hist_entry *he;
+ int err = 0;
+
+ he = __hists__add_entry(&evsel->hists, al, iter->parent, NULL, NULL,
+ sample->period, sample->weight,
+ sample->transaction, false);
+ if (he == NULL)
+ return -ENOMEM;
+
+ /*
+ * Only in the TUI browser we are doing integrated annotation,
+ * so we don't allocated the extra space needed because the stdio
+ * code will not use it.
+ */
+ if (sort__has_sym && he->ms.sym && use_browser == 1) {
+ struct annotation *notes = symbol__annotation(he->ms.sym);
+
+ assert(evsel != NULL);
+
+ if (notes->src == NULL && symbol__alloc_hist(he->ms.sym) < 0)
+ return -ENOMEM;
+
+ err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
+ }
+ return err;
+}
+
+static int
+iter_finish_cumulative_entry(struct add_entry_iter *iter,
+ struct addr_location *al __maybe_unused)
+{
+ struct perf_evsel *evsel = iter->evsel;
+ struct perf_sample *sample = iter->sample;
+
+ evsel->hists.stats.total_period += sample->period;
+ hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
+
+ return 0;
+}
+
static struct add_entry_iter mem_iter = {
.prepare_entry = iter_prepare_mem_entry,
.add_single_entry = iter_add_single_mem_entry,
@@ -422,6 +546,14 @@ static struct add_entry_iter normal_iter = {
.finish_entry = iter_finish_normal_entry,
};
+static struct add_entry_iter cumulative_iter = {
+ .prepare_entry = iter_prepare_cumulative_entry,
+ .add_single_entry = iter_add_single_cumulative_entry,
+ .next_entry = iter_next_cumulative_entry,
+ .add_next_entry = iter_add_next_cumulative_entry,
+ .finish_entry = iter_finish_cumulative_entry,
+};
+
static int
perf_evsel__add_entry(struct perf_evsel *evsel, struct addr_location *al,
struct perf_sample *sample, struct machine *machine,
@@ -487,7 +619,9 @@ static int process_sample_event(struct perf_tool *tool,
else if (rep->mem_mode == 1) {
iter = &mem_iter;
iter->priv = event;
- } else
+ } else if (symbol_conf.cumulate_callchain)
+ iter = &cumulative_iter;
+ else
iter = &normal_iter;
if (al.map != NULL)
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index c244cb524ef2..4c4986e809d8 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -364,7 +364,7 @@ static int hist_entry__fprintf(struct hist_entry *he, size_t size,
ret = fprintf(fp, "%s\n", bf);
- if (symbol_conf.use_callchain)
+ if (symbol_conf.use_callchain && !symbol_conf.cumulate_callchain)
ret += hist_entry__callchain_fprintf(he, hists, fp);
return ret;
--
1.7.11.7
--
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