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-rw-r--r--tools/perf/builtin-diff.c52
1 files changed, 21 insertions, 31 deletions
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 876a4b981be..924bfb77a6a 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -82,29 +82,19 @@ static void perf_session__insert_hist_entry_by_name(struct rb_root *root,
struct hist_entry *iter;
while (*p != NULL) {
- int cmp;
parent = *p;
iter = rb_entry(parent, struct hist_entry, rb_node);
-
- cmp = strcmp(he->map->dso->name, iter->map->dso->name);
- if (cmp > 0)
+ if (hist_entry__cmp(he, iter) < 0)
p = &(*p)->rb_left;
- else if (cmp < 0)
+ else
p = &(*p)->rb_right;
- else {
- cmp = strcmp(he->sym->name, iter->sym->name);
- if (cmp > 0)
- p = &(*p)->rb_left;
- else
- p = &(*p)->rb_right;
- }
}
rb_link_node(&he->rb_node, parent, p);
rb_insert_color(&he->rb_node, root);
}
-static void perf_session__resort_by_name(struct perf_session *self)
+static void perf_session__resort_hist_entries(struct perf_session *self)
{
unsigned long position = 1;
struct rb_root tmp = RB_ROOT;
@@ -122,29 +112,28 @@ static void perf_session__resort_by_name(struct perf_session *self)
self->hists = tmp;
}
+static void perf_session__set_hist_entries_positions(struct perf_session *self)
+{
+ perf_session__output_resort(self, self->events_stats.total);
+ perf_session__resort_hist_entries(self);
+}
+
static struct hist_entry *
-perf_session__find_hist_entry_by_name(struct perf_session *self,
- struct hist_entry *he)
+perf_session__find_hist_entry(struct perf_session *self,
+ struct hist_entry *he)
{
struct rb_node *n = self->hists.rb_node;
while (n) {
struct hist_entry *iter = rb_entry(n, struct hist_entry, rb_node);
- int cmp = strcmp(he->map->dso->name, iter->map->dso->name);
+ int64_t cmp = hist_entry__cmp(he, iter);
- if (cmp > 0)
+ if (cmp < 0)
n = n->rb_left;
- else if (cmp < 0)
+ else if (cmp > 0)
n = n->rb_right;
- else {
- cmp = strcmp(he->sym->name, iter->sym->name);
- if (cmp > 0)
- n = n->rb_left;
- else if (cmp < 0)
- n = n->rb_right;
- else
- return iter;
- }
+ else
+ return iter;
}
return NULL;
@@ -155,11 +144,9 @@ static void perf_session__match_hists(struct perf_session *old_session,
{
struct rb_node *nd;
- perf_session__resort_by_name(old_session);
-
for (nd = rb_first(&new_session->hists); nd; nd = rb_next(nd)) {
struct hist_entry *pos = rb_entry(nd, struct hist_entry, rb_node);
- pos->pair = perf_session__find_hist_entry_by_name(old_session, pos);
+ pos->pair = perf_session__find_hist_entry(old_session, pos);
}
}
@@ -177,9 +164,12 @@ static int __cmd_diff(void)
ret = perf_session__process_events(session[i], &event_ops);
if (ret)
goto out_delete;
- perf_session__output_resort(session[i], session[i]->events_stats.total);
}
+ perf_session__output_resort(session[1], session[1]->events_stats.total);
+ if (show_displacement)
+ perf_session__set_hist_entries_positions(session[0]);
+
perf_session__match_hists(session[0], session[1]);
perf_session__fprintf_hists(session[1], session[0],
show_displacement, stdout);