Port and add more cases.HEADmaster

1. Port benchmark cases from art-testing.
2. Add some more benchmarks for basic OPs.
3. Fix some jmh result variance.

Signed-off-by: Zhongwei Yao <zhongwei.yao@linaro.org>
Signed-off-by: Yang Zhang <yang.zhang@linaro.org>
Signed-off-by: Ningsheng Jian <ningsheng.jian@linaro.org>

Change-Id: I514658696b63e468158325be3b84494553773705

1 files changed, 101 insertions, 0 deletions

diff --git a/src/main/java/org/linaro/benchmarks/micro/HashMapBench.java b/src/main/java/org/linaro/benchmarks/micro/HashMapBench.java
new file mode 100644
index 0000000..02ffe14
--- /dev/null
+++ b/src/main/java/org/linaro/benchmarks/micro/HashMapBench.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2015, Linaro Limited. Ported to Java from:
+ *  http://browserbench.org/JetStream/sources/hash-map.js
+ *
+ * Description:   A benchmark case for hash map
+ */
+
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE below for additional
+ *  information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+/******* NOTICE *********
+
+ Apache Harmony
+ Copyright 2006, 2010 The Apache Software Foundation.
+
+ This product includes software developed at
+ The Apache Software Foundation (http://www.apache.org/).
+
+ Portions of Apache Harmony were originally developed by
+ Intel Corporation and are licensed to the Apache Software
+ Foundation under the "Software Grant and Corporate Contribution
+ License Agreement" and for which the following copyright notices
+ apply
+ (C) Copyright 2005 Intel Corporation
+ (C) Copyright 2005-2006 Intel Corporation
+ (C) Copyright 2006 Intel Corporation
+
+
+ The following copyright notice(s) were affixed to portions of the code
+ with which this file is now or was at one time distributed
+ and are placed here unaltered.
+
+ (C) Copyright 1997,2004 International Business Machines Corporation.
+ All rights reserved.
+
+ (C) Copyright IBM Corp. 2003.
+
+
+ This software contains code derived from UNIX V7, Copyright(C)
+ Caldera International Inc.
+
+ ************************/
+
+package org.linaro.benchmarks.micro;
+
+import java.util.HashMap;
+import java.util.Map;
+import org.openjdk.jmh.annotations.*;
+import java.util.concurrent.TimeUnit;
+
+@BenchmarkMode(Mode.AverageTime)
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@State(Scope.Benchmark)
+
+public class HashMapBench {
+
+  private static final int COUNT = 5000;
+  private static final int resultExpect = 1050000;
+  private static final long keySumExpect = 12497500;
+  private static final int valueSumExpect = 210000;
+  private int result = 0;
+  private long keySum = 0;
+  private int valueSum = 0;
+
+  private Map<Integer, Integer> map = new HashMap<Integer, Integer>();
+
+  @Benchmark
+  public void jmhTimeTestHashMap() {
+    for (int j = 0; j < COUNT; j++) {
+      map.put(j, 42);
+    }
+
+    result = 0;
+    for (int k = 0; k < 5; k++) {
+      for (int j = 0; j < COUNT; j++) {
+        result += map.get(j);
+      }
+    }
+
+    keySum = 0;
+    valueSum = 0;
+    for (Map.Entry<Integer, Integer> entry : map.entrySet()) {
+      keySum += entry.getKey();
+      valueSum += entry.getValue();
+    }
+  }
+}