1 /*
   2  * Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package org.openjdk.bench.vm.lambda.chain;
  26 import org.openjdk.jmh.annotations.Benchmark;
  27 import org.openjdk.jmh.annotations.BenchmarkMode;
  28 import org.openjdk.jmh.annotations.Mode;
  29 import org.openjdk.jmh.annotations.OperationsPerInvocation;
  30 import org.openjdk.jmh.annotations.OutputTimeUnit;
  31 import org.openjdk.jmh.annotations.Scope;
  32 import org.openjdk.jmh.annotations.Setup;
  33 import org.openjdk.jmh.annotations.State;
  34 import org.openjdk.jmh.infra.Blackhole;
  35 
  36 import java.util.concurrent.TimeUnit;
  37 
  38 /**
  39  * Chain of (capture + invocation) microbenchmark.
  40  */
  41 @State(Scope.Benchmark)
  42 @BenchmarkMode(Mode.AverageTime)
  43 @OutputTimeUnit(TimeUnit.NANOSECONDS)
  44 public class ChainAnonymCap4 extends ChainBase {
  45 
  46     public Level start1;
  47     public Level start2;
  48     public Level start4;
  49     public Level start8;
  50 
  51     @Setup
  52     public void init() {
  53         start1 = get1("capture me", "and me", "me too", "wait! what about me?");
  54         start2 = get2("capture me", "and me", "me too", "wait! what about me?");
  55         start4 = get4("capture me", "and me", "me too", "wait! what about me?");
  56         start8 = get8("capture me", "and me", "me too", "wait! what about me?");
  57     }
  58 
  59     @Benchmark
  60     @OperationsPerInvocation(1)
  61     public void call1(Blackhole bh) {
  62         process(bh, start1);
  63     }
  64 
  65     @Benchmark
  66     @OperationsPerInvocation(2)
  67     public void call2(Blackhole bh) {
  68         process(bh, start2);
  69     }
  70 
  71     @Benchmark
  72     @OperationsPerInvocation(4)
  73     public void call4(Blackhole bh) {
  74         process(bh, start4);
  75     }
  76 
  77     @Benchmark
  78     @OperationsPerInvocation(8)
  79     public void call8(Blackhole bh) {
  80         process(bh, start8);
  81     }
  82 
  83     public static TopLevel get0(String v0, String v1, String v2, String v3) {
  84         return new TopLevel() {
  85             @Override
  86             public String getImage() {
  87                 return "GOT: " + v0 + "," + v1 + "," + v2 + "," + v3;
  88             }
  89         };
  90     }
  91 
  92     public static Level get1(String v0, String v1, String v2, String v3) {
  93         return new Level() {
  94             @Override
  95             public Level up() {
  96                 return get0(v0, v1, v2, v3);
  97             }
  98         };
  99     }
 100 
 101     public static Level get2(String v0, String v1, String v2, String v3) {
 102         return new Level() {
 103             @Override
 104             public Level up() {
 105                 return get1(v0, v1, v2, v3);
 106             }
 107         };
 108     }
 109 
 110     public static Level get3(String v0, String v1, String v2, String v3) {
 111         return new Level() {
 112             @Override
 113             public Level up() {
 114                 return get2(v0, v1, v2, v3);
 115             }
 116         };
 117     }
 118 
 119     public static Level get4(String v0, String v1, String v2, String v3) {
 120         return new Level() {
 121             @Override
 122             public Level up() {
 123                 return get3(v0, v1, v2, v3);
 124             }
 125         };
 126     }
 127 
 128     public static Level get5(String v0, String v1, String v2, String v3) {
 129         return new Level() {
 130             @Override
 131             public Level up() {
 132                 return get4(v0, v1, v2, v3);
 133             }
 134         };
 135     }
 136 
 137     public static Level get6(String v0, String v1, String v2, String v3) {
 138         return new Level() {
 139             @Override
 140             public Level up() {
 141                 return get5(v0, v1, v2, v3);
 142             }
 143         };
 144     }
 145 
 146     public static Level get7(String v0, String v1, String v2, String v3) {
 147         return new Level() {
 148             @Override
 149             public Level up() {
 150                 return get6(v0, v1, v2, v3);
 151             }
 152         };
 153     }
 154 
 155     public static Level get8(String v0, String v1, String v2, String v3) {
 156         return new Level() {
 157             @Override
 158             public Level up() {
 159                 return get7(v0, v1, v2, v3);
 160             }
 161         };
 162     }
 163 
 164 }