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-rw-r--r--tools/perf/Documentation/perf-report.txt5
-rw-r--r--tools/perf/builtin-report.c10
-rw-r--r--tools/perf/ui/hist.c93
-rw-r--r--tools/perf/util/symbol_conf.h1
4 files changed, 94 insertions, 15 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index bd0a029d4c08..e56e3f1344a7 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -377,6 +377,11 @@ OPTIONS
Show event group information together. It forces group output also
if there are no groups defined in data file.
+--group-sort-idx::
+ Sort the output by the event at the index n in group. If n is invalid,
+ sort by the first event. It can support multiple groups with different
+ amount of events. WARNING: This should be used on grouped events.
+
--demangle::
Demangle symbol names to human readable form. It's enabled by default,
disable with --no-demangle.
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 5f4045df76f4..fa21c5ae3a51 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -1227,6 +1227,10 @@ int cmd_report(int argc, const char **argv)
"Show a column with the sum of periods"),
OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group, &report.group_set,
"Show event group information together"),
+ OPT_INTEGER(0, "group-sort-idx", &symbol_conf.group_sort_idx,
+ "Sort the output by the event at the index n in group. "
+ "If n is invalid, sort by the first event. "
+ "WARNING: should be used on grouped events."),
OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
"use branch records for per branch histogram filling",
parse_branch_mode),
@@ -1369,6 +1373,12 @@ repeat:
setup_forced_leader(&report, session->evlist);
+ if (symbol_conf.group_sort_idx && !session->evlist->nr_groups) {
+ parse_options_usage(NULL, options, "group-sort-idx", 0);
+ ret = -EINVAL;
+ goto error;
+ }
+
if (itrace_synth_opts.last_branch)
has_br_stack = true;
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index f73675500061..025f4c7f96bf 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -151,15 +151,90 @@ static int field_cmp(u64 field_a, u64 field_b)
return 0;
}
+static int hist_entry__new_pair(struct hist_entry *a, struct hist_entry *b,
+ hpp_field_fn get_field, int nr_members,
+ u64 **fields_a, u64 **fields_b)
+{
+ u64 *fa = calloc(nr_members, sizeof(*fa)),
+ *fb = calloc(nr_members, sizeof(*fb));
+ struct hist_entry *pair;
+
+ if (!fa || !fb)
+ goto out_free;
+
+ list_for_each_entry(pair, &a->pairs.head, pairs.node) {
+ struct evsel *evsel = hists_to_evsel(pair->hists);
+ fa[perf_evsel__group_idx(evsel)] = get_field(pair);
+ }
+
+ list_for_each_entry(pair, &b->pairs.head, pairs.node) {
+ struct evsel *evsel = hists_to_evsel(pair->hists);
+ fb[perf_evsel__group_idx(evsel)] = get_field(pair);
+ }
+
+ *fields_a = fa;
+ *fields_b = fb;
+ return 0;
+out_free:
+ free(fa);
+ free(fb);
+ *fields_a = *fields_b = NULL;
+ return -1;
+}
+
+static int __hpp__group_sort_idx(struct hist_entry *a, struct hist_entry *b,
+ hpp_field_fn get_field, int idx)
+{
+ struct evsel *evsel = hists_to_evsel(a->hists);
+ u64 *fields_a, *fields_b;
+ int cmp, nr_members, ret, i;
+
+ cmp = field_cmp(get_field(a), get_field(b));
+ if (!perf_evsel__is_group_event(evsel))
+ return cmp;
+
+ nr_members = evsel->core.nr_members;
+ if (idx < 1 || idx >= nr_members)
+ return cmp;
+
+ ret = hist_entry__new_pair(a, b, get_field, nr_members, &fields_a, &fields_b);
+ if (ret) {
+ ret = cmp;
+ goto out;
+ }
+
+ ret = field_cmp(fields_a[idx], fields_b[idx]);
+ if (ret)
+ goto out;
+
+ for (i = 1; i < nr_members; i++) {
+ if (i != idx) {
+ ret = field_cmp(fields_a[i], fields_b[i]);
+ if (ret)
+ goto out;
+ }
+ }
+
+out:
+ free(fields_a);
+ free(fields_b);
+
+ return ret;
+}
+
static int __hpp__sort(struct hist_entry *a, struct hist_entry *b,
hpp_field_fn get_field)
{
s64 ret;
int i, nr_members;
struct evsel *evsel;
- struct hist_entry *pair;
u64 *fields_a, *fields_b;
+ if (symbol_conf.group_sort_idx && symbol_conf.event_group) {
+ return __hpp__group_sort_idx(a, b, get_field,
+ symbol_conf.group_sort_idx);
+ }
+
ret = field_cmp(get_field(a), get_field(b));
if (ret || !symbol_conf.event_group)
return ret;
@@ -169,22 +244,10 @@ static int __hpp__sort(struct hist_entry *a, struct hist_entry *b,
return ret;
nr_members = evsel->core.nr_members;
- fields_a = calloc(nr_members, sizeof(*fields_a));
- fields_b = calloc(nr_members, sizeof(*fields_b));
-
- if (!fields_a || !fields_b)
+ i = hist_entry__new_pair(a, b, get_field, nr_members, &fields_a, &fields_b);
+ if (i)
goto out;
- list_for_each_entry(pair, &a->pairs.head, pairs.node) {
- evsel = hists_to_evsel(pair->hists);
- fields_a[perf_evsel__group_idx(evsel)] = get_field(pair);
- }
-
- list_for_each_entry(pair, &b->pairs.head, pairs.node) {
- evsel = hists_to_evsel(pair->hists);
- fields_b[perf_evsel__group_idx(evsel)] = get_field(pair);
- }
-
for (i = 1; i < nr_members; i++) {
ret = field_cmp(fields_a[i], fields_b[i]);
if (ret)
diff --git a/tools/perf/util/symbol_conf.h b/tools/perf/util/symbol_conf.h
index 10f1ec3e0349..b916afb95ec5 100644
--- a/tools/perf/util/symbol_conf.h
+++ b/tools/perf/util/symbol_conf.h
@@ -73,6 +73,7 @@ struct symbol_conf {
const char *symfs;
int res_sample;
int pad_output_len_dso;
+ int group_sort_idx;
};
extern struct symbol_conf symbol_conf;