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-rw-r--r--tools/perf/util/callchain.c27
-rw-r--r--tools/perf/util/callchain.h7
2 files changed, 22 insertions, 12 deletions
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 9d3c8141b8c1..98c5627f327b 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -26,10 +26,14 @@ rb_insert_callchain(struct rb_root *root, struct callchain_node *chain,
struct rb_node **p = &root->rb_node;
struct rb_node *parent = NULL;
struct callchain_node *rnode;
+ u64 chain_cumul = cumul_hits(chain);
while (*p) {
+ u64 rnode_cumul;
+
parent = *p;
rnode = rb_entry(parent, struct callchain_node, rb_node);
+ rnode_cumul = cumul_hits(rnode);
switch (mode) {
case CHAIN_FLAT:
@@ -40,7 +44,7 @@ rb_insert_callchain(struct rb_root *root, struct callchain_node *chain,
break;
case CHAIN_GRAPH_ABS: /* Falldown */
case CHAIN_GRAPH_REL:
- if (rnode->cumul_hit < chain->cumul_hit)
+ if (rnode_cumul < chain_cumul)
p = &(*p)->rb_left;
else
p = &(*p)->rb_right;
@@ -87,7 +91,7 @@ static void __sort_chain_graph_abs(struct callchain_node *node,
chain_for_each_child(child, node) {
__sort_chain_graph_abs(child, min_hit);
- if (child->cumul_hit >= min_hit)
+ if (cumul_hits(child) >= min_hit)
rb_insert_callchain(&node->rb_root, child,
CHAIN_GRAPH_ABS);
}
@@ -108,11 +112,11 @@ static void __sort_chain_graph_rel(struct callchain_node *node,
u64 min_hit;
node->rb_root = RB_ROOT;
- min_hit = node->cumul_hit * min_percent / 100.0;
+ min_hit = node->children_hit * min_percent / 100.0;
chain_for_each_child(child, node) {
__sort_chain_graph_rel(child, min_percent);
- if (child->cumul_hit >= min_hit)
+ if (cumul_hits(child) >= min_hit)
rb_insert_callchain(&node->rb_root, child,
CHAIN_GRAPH_REL);
}
@@ -211,7 +215,8 @@ add_child(struct callchain_node *parent, struct ip_callchain *chain,
new = create_child(parent, false);
fill_node(new, chain, start, syms);
- new->cumul_hit = new->hit = 1;
+ new->children_hit = 0;
+ new->hit = 1;
}
/*
@@ -241,7 +246,8 @@ split_add_child(struct callchain_node *parent, struct ip_callchain *chain,
/* split the hits */
new->hit = parent->hit;
- new->cumul_hit = parent->cumul_hit;
+ new->children_hit = parent->children_hit;
+ parent->children_hit = cumul_hits(new);
new->val_nr = parent->val_nr - idx_local;
parent->val_nr = idx_local;
@@ -249,6 +255,7 @@ split_add_child(struct callchain_node *parent, struct ip_callchain *chain,
if (idx_total < chain->nr) {
parent->hit = 0;
add_child(parent, chain, idx_total, syms);
+ parent->children_hit++;
} else {
parent->hit = 1;
}
@@ -269,13 +276,13 @@ __append_chain_children(struct callchain_node *root, struct ip_callchain *chain,
unsigned int ret = __append_chain(rnode, chain, start, syms);
if (!ret)
- goto cumul;
+ goto inc_children_hit;
}
/* nothing in children, add to the current node */
add_child(root, chain, start, syms);
-cumul:
- root->cumul_hit++;
+inc_children_hit:
+ root->children_hit++;
}
static int
@@ -317,8 +324,6 @@ __append_chain(struct callchain_node *root, struct ip_callchain *chain,
/* we match 100% of the path, increment the hit */
if (i - start == root->val_nr && i == chain->nr) {
root->hit++;
- root->cumul_hit++;
-
return 0;
}
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 7812122bea1d..b2d128e07c88 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -21,7 +21,7 @@ struct callchain_node {
struct rb_root rb_root; /* sorted tree of children */
unsigned int val_nr;
u64 hit;
- u64 cumul_hit; /* hit + hits of children */
+ u64 children_hit;
};
struct callchain_param;
@@ -48,6 +48,11 @@ static inline void callchain_init(struct callchain_node *node)
INIT_LIST_HEAD(&node->val);
}
+static inline u64 cumul_hits(struct callchain_node *node)
+{
+ return node->hit + node->children_hit;
+}
+
int register_callchain_param(struct callchain_param *param);
void append_chain(struct callchain_node *root, struct ip_callchain *chain,
struct symbol **syms);