decrease the initial size of long-hash-map (no change really) + notes…

… on perf testing
enebo · Nov 11, 2015 · e0ca9f5 · e0ca9f5
1 parent 0a80302
commit e0ca9f5
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/core/src/main/java/org/jruby/java/invokers/RubyToJavaInvoker.java b/core/src/main/java/org/jruby/java/invokers/RubyToJavaInvoker.java
@@ -142,8 +142,9 @@ public abstract class RubyToJavaInvoker<T extends JavaCallable> extends JavaMeth
             if (varArgs != null /* && varargsMethods.size() > 0 */) {
                 varargsCallables = varArgs.toArray( createCallableArray(varArgs.size()) );
             }
-
-            cache = new NonBlockingHashMapLong<>(8);
+            // NOTE: tested (4, false); with opt_for_space: false but does not
+            // seem to give  the promised ~10% improvement in map's speed ...
+            cache = new NonBlockingHashMapLong<>(4, true); // 8 still uses MIN_SIZE_LOG == 4
         }
 
         this.javaCallable = callable;
@@ -521,4 +522,4 @@ private static class NullHashMapLong<V> extends NonBlockingHashMapLong<V> {
 
     }
 
-}
+}