Add warmup

2 files changed, 10 insertions, 0 deletions

diff --git a/node-repository/src/test/java/com/yahoo/vespa/hosted/provision/NodeListMicroBenchmarkTest.java b/node-repository/src/test/java/com/yahoo/vespa/hosted/provision/NodeListMicroBenchmarkTest.java
index a1edbec5769..e48e77f7881 100644
--- a/node-repository/src/test/java/com/yahoo/vespa/hosted/provision/NodeListMicroBenchmarkTest.java
+++ b/node-repository/src/test/java/com/yahoo/vespa/hosted/provision/NodeListMicroBenchmarkTest.java
@@ -46,6 +46,10 @@ public class NodeListMicroBenchmarkTest {
         for (int i = 0; i < iterations; i++) {
             indexes.add(random.nextInt(hostCount));
         }
+        // Warmup for stable results.
+        for (int i = 0; i < 10000; i++) {
+            nodeList.childrenOf(nodes.get(indexes.get(i)));
+        }
 
         Instant start = Instant.now();
         for (int i = 0; i < iterations; i++) {
diff --git a/vespajlib/src/main/java/com/yahoo/collections/AbstractFilteringList.java b/vespajlib/src/main/java/com/yahoo/collections/AbstractFilteringList.java
index 2b7f4027fbc..11489288eae 100644
--- a/vespajlib/src/main/java/com/yahoo/collections/AbstractFilteringList.java
+++ b/vespajlib/src/main/java/com/yahoo/collections/AbstractFilteringList.java
@@ -13,6 +13,7 @@ import java.util.Map;
 import java.util.Optional;
 import java.util.Random;
 import java.util.Set;
+import java.util.Spliterator;
 import java.util.function.BiFunction;
 import java.util.function.Function;
 import java.util.function.Predicate;
@@ -112,6 +113,11 @@ public abstract class AbstractFilteringList<Type, ListType extends AbstractFilte
         return items.iterator();
     }
 
+    @Override
+    public Spliterator<Type> spliterator() {
+        return items.spliterator();
+    }
+
     /** Returns the items in this shuffled using random as source of randomness */
     public final ListType shuffle(Random random) {
         ArrayList<Type> shuffled = new ArrayList<>(items);