perf[executor]: specified map initial size

2026-08-12 08:23:54 +00:00 · 2022-10-08 11:31:50 +08:00
parent 1c20b6236a
commit cd55de2b37
3 changed files with 13 additions and 5 deletions
@@ -26,7 +26,15 @@ import java.util.concurrent.locks.ReentrantLock;
 public class CopyOnWriteHashMapLongObject<V> implements Map<Long, V> {

    private final ReentrantLock lock = new ReentrantLock();
-    private volatile LongObjectHashMap<V> map = new LongObjectHashMap<>();
+    private volatile LongObjectHashMap<V> map;
+
+    public CopyOnWriteHashMapLongObject() {
+        map = new LongObjectHashMap<>();
+    }
+
+    public CopyOnWriteHashMapLongObject(int initialCapacity) {
+        map = new LongObjectHashMap<>(initialCapacity);
+    }

    private LongObjectHashMap<V> newCopyMap() {
        var newMap = new LongObjectHashMap<V>();