hotspot/test/gc/survivorAlignment/TestPromotionLABLargeSurvivorAlignment.java
changeset 37192 427945788462
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/gc/survivorAlignment/TestPromotionLABLargeSurvivorAlignment.java	Wed Mar 16 14:47:55 2016 -0700
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug 8060463
+ * @summary Verify that objects promoted from eden space to survivor space
+ *          with large values for SurvivorAlignmentInBytes succeed.
+ * @requires vm.opt.ExplicitGCInvokesConcurrent != true
+ * @run main/othervm -Xmx128m
+ *                   -XX:+UnlockExperimentalVMOptions
+ *                   -XX:SurvivorAlignmentInBytes=8 -XX:SurvivorRatio=1
+ *                   -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
+ *                   TestPromotionLABLargeSurvivorAlignment
+ * @run main/othervm -Xmx128m
+ *                   -XX:+UnlockExperimentalVMOptions
+ *                   -XX:SurvivorAlignmentInBytes=16 -XX:SurvivorRatio=1
+ *                   -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
+ *                   TestPromotionLABLargeSurvivorAlignment
+ * @run main/othervm -Xmx128m
+ *                   -XX:+UnlockExperimentalVMOptions
+ *                   -XX:SurvivorAlignmentInBytes=512 -XX:SurvivorRatio=1
+ *                   -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
+ *                   TestPromotionLABLargeSurvivorAlignment
+ * @run main/othervm -Xmx128m
+ *                   -XX:+UnlockExperimentalVMOptions
+ *                   -XX:SurvivorAlignmentInBytes=1k -XX:SurvivorRatio=1
+ *                   -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
+ *                   TestPromotionLABLargeSurvivorAlignment
+ * @run main/othervm -Xmx128m
+ *                   -XX:+UnlockExperimentalVMOptions
+ *                   -XX:SurvivorAlignmentInBytes=4k -XX:SurvivorRatio=1
+ *                   -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
+ *                   TestPromotionLABLargeSurvivorAlignment
+ * @run main/othervm -Xmx128m
+ *                   -XX:+UnlockExperimentalVMOptions
+ *                   -XX:SurvivorAlignmentInBytes=16k -XX:SurvivorRatio=1
+ *                   -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
+ *                   TestPromotionLABLargeSurvivorAlignment
+ */
+public class TestPromotionLABLargeSurvivorAlignment {
+    public static void main(String args[]) {
+        Object garbage[] = new Object[1000000];
+        for (int i = 0; i < garbage.length; i++) {
+            garbage[i] = new byte[0];
+        }
+        for (int i = 0; i < 2; i++) {
+            System.gc();
+        }
+    }
+}
+