[PATCH 09/19] perf ui/hist: Add support for event group view

Namhyung Kim
2013-01-22T09:10:45Z

From: Namhyung Kim <namhyung.kim@lge.com>

Show group member's overhead also when showing the leader's if event
group is enabled.

Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/ui/hist.c | 62 +++++++++++++++++++++++++++++++++++++++++++++-
tools/perf/ui/stdio/hist.c | 2 ++
2 files changed, 63 insertions(+), 1 deletion(-)

diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index 849c40028e7b..a47ce98c2cb1 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -21,6 +21,53 @@ static int __hpp__percent_fmt(struct perf_hpp *hpp, struct hist_entry *he,
percent = 100.0 * get_field(he) / hists->stats.total_period;

ret = print_fn(hpp->buf, hpp->size, fmt, percent);
+
+ if (symbol_conf.event_group) {
+ int prev_idx, idx_delta;
+ struct perf_evsel *evsel = hists_to_evsel(hists);
+ struct hist_entry *pair;
+ int nr_members = evsel->nr_members;
+
+ if (nr_members <= 1)
+ return ret;
+
+ prev_idx = perf_evsel__group_idx(evsel);
+
+ list_for_each_entry(pair, &he->pairs.head, pairs.node) {
+ u64 period = get_field(pair);
+ u64 total = pair->hists->stats.total_period;
+
+ if (!total)
+ continue;
+
+ evsel = hists_to_evsel(pair->hists);
+ idx_delta = perf_evsel__group_idx(evsel) - prev_idx - 1;
+
+ while (idx_delta--) {
+ /*
+ * zero-fill group members in the middle which
+ * have no sample
+ */
+ ret += print_fn(hpp->buf + ret, hpp->size - ret,
+ fmt, 0.0);
+ }
+
+ ret += print_fn(hpp->buf + ret, hpp->size - ret,
+ fmt, 100.0 * period / total);
+
+ prev_idx = perf_evsel__group_idx(evsel);
+ }
+
+ idx_delta = nr_members - prev_idx - 1;
+
+ while (idx_delta--) {
+ /*
+ * zero-fill group members at last which have no sample
+ */
+ ret += print_fn(hpp->buf + ret, hpp->size - ret,
+ fmt, 0.0);
+ }
+ }
return ret;
}

@@ -40,6 +87,11 @@ static int hpp__header_##_type(struct perf_hpp *hpp) \
{ \
int len = _min_width; \
\
+ if (symbol_conf.event_group) { \
+ struct perf_evsel *evsel = hpp->ptr; \
+ \
+ len = max(len, evsel->nr_members * _unit_width); \
+ } \
return scnprintf(hpp->buf, hpp->size, "%*s", len, _str); \
}

@@ -48,6 +100,11 @@ static int hpp__width_##_type(struct perf_hpp *hpp __maybe_unused) \
{ \
int len = _min_width; \
\
+ if (symbol_conf.event_group) { \
+ struct perf_evsel *evsel = hpp->ptr; \
+ \
+ len = max(len, evsel->nr_members * _unit_width); \
+ } \
return len; \
}

@@ -438,12 +495,15 @@ unsigned int hists__sort_list_width(struct hists *hists)
struct perf_hpp_fmt *fmt;
struct sort_entry *se;
int i = 0, ret = 0;
+ struct perf_hpp dummy_hpp = {
+ .ptr = hists_to_evsel(hists),
+ };

perf_hpp__for_each_format(fmt) {
if (i)
ret += 2;

- ret += fmt->width(NULL);
+ ret += fmt->width(&dummy_hpp);
}

list_for_each_entry(se, &hist_entry__sort_list, list)
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index f9798298e3e0..ff1f60cf442e 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -3,6 +3,7 @@
#include "../../util/util.h"
#include "../../util/hist.h"
#include "../../util/sort.h"
+#include "../../util/evsel.h"

static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin)
@@ -347,6 +348,7 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
struct perf_hpp dummy_hpp = {
.buf = bf,
.size = sizeof(bf),
+ .ptr = hists_to_evsel(hists),
};
bool first = true;

--
1.7.11.7