8312420: Integrate Graal's blender micro benchmark

Reviewed-by: dnsimon, thartmann, ksakata

Author: caojoshua

test/micro/org/openjdk/bench/vm/compiler/pea/Blender.java

@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2023, 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.
+ */
+
+package org.openjdk.bench.vm.compiler.pea;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Measurement;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.Param;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Warmup;
+
+import java.util.concurrent.TimeUnit;
+
+@BenchmarkMode(Mode.AverageTime)
+@OutputTimeUnit(TimeUnit.NANOSECONDS)
+@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
+@Measurement(iterations = 1, time = 1, timeUnit = TimeUnit.SECONDS)
+@State(Scope.Benchmark)
+@Fork(value = 3)
+public class Blender {
+    @Param({"1", "2", "3", "4", "5", "6", "7", "8", "9", "10"})
+    int iteration;
+
+    private static class Color {
+        double r, g, b;
+
+        private Color(double r, double g, double b) {
+            this.r = r;
+            this.g = g;
+            this.b = b;
+        }
+
+        public static Color color() {
+            return new Color(0, 0, 0);
+        }
+
+        public void add(Color other) {
+            r += other.r;
+            g += other.g;
+            b += other.b;
+        }
+
+        public void add(double nr, double ng, double nb) {
+            r += nr;
+            g += ng;
+            b += nb;
+        }
+
+        public void multiply(double factor) {
+            r *= factor;
+            g *= factor;
+            b *= factor;
+        }
+    }
+
+    private static final Color[][][] colors = new Color[100][100][100];
+
+    @Benchmark
+    public void initialize() {
+        Color id = new Color(iteration / 20, 0, 1);
+        for (int x = 0; x < colors.length; x++) {
+            Color[][] plane = colors[x];
+            for (int y = 0; y < plane.length; y++) {
+                Color[] row = plane[y];
+                for (int z = 0; z < row.length; z++) {
+                    Color color = new Color(x, y, z);
+                    color.add(id);
+                    if ((color.r + color.g + color.b) % 42 == 0) {
+                         // PEA only allocates a color object here
+                         row[z] = color;
+                    } else {
+                         // Here the color object is not allocated at all
+                    }
+                }
+            }
+        }
+    }
+}
+