* fix node costs for g1 post barrier

tschatzl · Dec 11, 2024 · 7761f0e · 7761f0e
1 parent bc2aa0f
commit 7761f0e
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/hotspot/share/gc/g1/c2/g1BarrierSetC2.cpp b/src/hotspot/share/gc/g1/c2/g1BarrierSetC2.cpp
@@ -299,7 +299,9 @@ uint G1BarrierSetC2::estimated_barrier_size(const Node* node) const {
     nodes += 50;
   }
   if ((barrier_data & G1C2BarrierPost) != 0) {
-    nodes += 60;
+    // Approximate the number of nodes needed with the number of Assembly instructions
+    // since we do not have real nodes.
+    nodes += 12;
   }
   return nodes;
 }