Prefetch second child to improve scan performance

2024-11-15 12:45:01 -08:00
parent 71ace9cc55
commit 552fc11c5d
1 changed files with 2 additions and 0 deletions
--- a/ConflictSet.cpp
+++ b/ConflictSet.cpp
@@ -1415,9 +1415,11 @@ TaggedNodePointer getChildGeq(Node *self, int child) {

 Node *getFirstChild(Node0 *) { return nullptr; }
 Node *getFirstChild(Node3 *self) {
+  __builtin_prefetch(self->children[1]);
  return self->numChildren == 0 ? nullptr : self->children[0];
 }
 Node *getFirstChild(Node16 *self) {
+  __builtin_prefetch(self->children[1]);
  return self->numChildren == 0 ? nullptr : self->children[0];
 }
 Node *getFirstChild(Node48 *self) {