373 lines
12 KiB
Java
373 lines
12 KiB
Java
/*
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* Copyright (c) 2019, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package org.openjdk.bench.java.util;
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import org.openjdk.jmh.annotations.*;
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import org.openjdk.jmh.infra.Blackhole;
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import java.util.*;
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import java.util.concurrent.TimeUnit;
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/**
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* Micros for the various collections implemented in
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* java.util.ImmutableCollections
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*/
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@State(Scope.Benchmark)
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@OutputTimeUnit(TimeUnit.MICROSECONDS)
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@Fork(value = 3)
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@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
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@Measurement(iterations = 5, time = 2, timeUnit = TimeUnit.SECONDS)
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public class ImmutableColls {
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public static String[] STRINGS = {"hi", "all", "of", "you"};
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public static List<String> l0 = List.of();
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public static List<String> l1 = List.of(Arrays.copyOf(STRINGS, 1));
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public static List<String> l2 = List.of(Arrays.copyOf(STRINGS, 2));
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public static List<String> l3 = List.of(Arrays.copyOf(STRINGS, 3));
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public static List<String> l4 = List.of(Arrays.copyOf(STRINGS, 4));
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public static Set<String> s0 = Set.copyOf(l0);
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public static Set<String> s1 = Set.copyOf(l1);
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public static Set<String> s2 = Set.copyOf(l2);
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public static Set<String> s3 = Set.copyOf(l3);
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public static Set<String> s4 = Set.copyOf(l4);
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public static Map<String, String> m0 = Map.of();
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public static Map<String, String> m1 = Map.of(STRINGS[0], STRINGS[0]);
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public static Map<String, String> m2 = Map.of(STRINGS[0], STRINGS[0],
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STRINGS[1], STRINGS[1]);
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public static Map<String, String> m3 = Map.of(STRINGS[0], STRINGS[0],
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STRINGS[1], STRINGS[1],
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STRINGS[2], STRINGS[2]);
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public static Map<String, String> m4 = Map.of(STRINGS[0], STRINGS[0],
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STRINGS[1], STRINGS[1],
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STRINGS[2], STRINGS[2],
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STRINGS[3], STRINGS[3]);
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public static List<String> a0 = new ArrayList<>(l0);
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public static List<String> a1 = new ArrayList<>(l1);
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public static List<String> a2 = new ArrayList<>(l2);
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public static List<String> a3 = new ArrayList<>(l3);
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public static List<String> a4 = new ArrayList<>(l4);
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public static final List<String> fl0 = List.of();
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public static final List<String> fl1 = List.copyOf(l1);
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public static final List<String> fl2 = List.copyOf(l2);
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public static final List<String> fl3 = List.copyOf(l3);
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public static final List<String> fl4 = List.copyOf(l4);
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public static final List<String> fsl0 = fl0.subList(0, 0);
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public static final List<String> fsl1 = fl2.subList(1, 2);
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public static final List<String> fsl2 = fl3.subList(0, 2);
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public static final List<String> fsl3 = fl4.subList(0, 3);
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public static final Set<String> fs0 = Set.copyOf(l0);
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public static final Set<String> fs1 = Set.copyOf(l1);
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public static final Set<String> fs2 = Set.copyOf(l2);
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public static final Set<String> fs3 = Set.copyOf(l3);
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public static final Set<String> fs4 = Set.copyOf(l4);
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public static final Map<String, String> fm0 = Map.copyOf(m0);
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public static final Map<String, String> fm1 = Map.copyOf(m1);
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public static final Map<String, String> fm2 = Map.copyOf(m2);
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public static final Map<String, String> fm3 = Map.copyOf(m3);
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public static final Map<String, String> fm4 = Map.copyOf(m4);
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void constructLists(Blackhole bh) {
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bh.consume(List.of(STRINGS[0]));
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bh.consume(List.of(STRINGS[0], STRINGS[1]));
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bh.consume(List.of(STRINGS[0], STRINGS[1], STRINGS[2]));
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void constructSets(Blackhole bh) {
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bh.consume(Set.of(STRINGS[0]));
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bh.consume(Set.of(STRINGS[0], STRINGS[1]));
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bh.consume(Set.of(STRINGS[0], STRINGS[1], STRINGS[2]));
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public int sumSizesList() {
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return sizeOf(l0) +
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sizeOf(l1) +
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sizeOf(l2) +
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sizeOf(l3) +
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sizeOf(l4);
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public int sumSizesFinalList() {
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return sizeOf(fl0) +
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sizeOf(fl1) +
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sizeOf(fl2) +
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sizeOf(fl3) +
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sizeOf(fl4);
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public int sumSizesSet() {
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return sizeOf(s0) +
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sizeOf(s1) +
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sizeOf(s2) +
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sizeOf(s3) +
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sizeOf(s4);
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public int sumSizesFinalSet() {
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return sizeOf2(fs0) +
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sizeOf2(fs1) +
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sizeOf2(fs2) +
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sizeOf2(fs3) +
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sizeOf2(fs4);
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public boolean emptyFinalSet() {
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return fs0.isEmpty() &
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fs1.isEmpty() &
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fs2.isEmpty() &
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fs3.isEmpty() &
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fs4.isEmpty();
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public boolean emptyFinalList() {
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return fl0.isEmpty() &
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fl1.isEmpty() &
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fl2.isEmpty() &
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fl3.isEmpty() &
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fl4.isEmpty();
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public boolean emptyFinalMap() {
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return fm0.isEmpty() &
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fm1.isEmpty() &
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fm2.isEmpty() &
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fm3.isEmpty() &
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fm4.isEmpty();
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public boolean containsFinalSet() {
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return fs0.contains("hi") &
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fs1.contains("hi") &
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fs2.contains("hi") &
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fs3.contains("hi") &
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fs4.contains("hi");
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public boolean containsFinalList() {
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return fl0.contains("hi") &
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fl1.contains("hi") &
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fl2.contains("hi") &
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fl3.contains("hi") &
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fl4.contains("hi");
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public boolean containsKeyFinalMap() {
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return fm0.containsKey("hi") &
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fm1.containsKey("hi") &
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fm2.containsKey("hi") &
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fm3.containsKey("hi") &
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fm4.containsKey("hi");
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public boolean containsValueFinalMap() {
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return fm0.containsValue("hi") &
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fm1.containsValue("hi") &
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fm2.containsValue("hi") &
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fm3.containsValue("hi") &
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fm4.containsValue("hi");
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void getOrDefault(Blackhole bh) {
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bh.consume(fm4.getOrDefault("hi", "test"));
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bh.consume(fm4.getOrDefault("not_in_this_map", "test"));
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}
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public int sizeOf(List<String> list) {
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return list.size();
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}
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/**
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* Same as sizeOf(List), but duplicated to avoid any
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* potential profile pollution with tests using
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* sizeOf.
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*/
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public int sizeOf2(List<String> list) {
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return list.size();
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}
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public int sizeOf(Set<String> set) {
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return set.size();
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}
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/**
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* Same as sizeOf(Set), but duplicated to avoid any
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* potential profile pollution with tests using
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* sizeOf.
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*/
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public int sizeOf2(Set<String> set) {
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return set.size();
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public int getFromList() {
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return get(l1, 0).length() +
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get(l2, 1).length() +
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get(l3, 2).length() +
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get(l4, 3).length();
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public int finalGetFromList() {
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return get(fl1, 0).length() +
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get(fl2, 1).length() +
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get(fl3, 2).length() +
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get(fl4, 3).length();
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void toArrayFromSet(Blackhole bh) {
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bh.consume(fs4.toArray());
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bh.consume(s1.toArray());
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bh.consume(s3.toArray());
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bh.consume(fs2.toArray());
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bh.consume(s0.toArray());
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void iterateOverSet(Blackhole bh) {
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iterateSet(bh, fs4);
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iterateSet(bh, s1);
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iterateSet(bh, s3);
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iterateSet(bh, fs2);
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iterateSet(bh, s0);
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}
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public void iterateSet(Blackhole bh, Set<String> coll) {
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for (String s : coll) {
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bh.consume(s);
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}
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void toArrayFromMap(Blackhole bh) {
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bh.consume(fm4.entrySet().toArray());
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bh.consume(m1.entrySet().toArray());
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bh.consume(m3.entrySet().toArray());
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bh.consume(fm2.entrySet().toArray());
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bh.consume(m0.entrySet().toArray());
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void toArrayFromList(Blackhole bh) {
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bh.consume(fl4.toArray());
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bh.consume(fl1.toArray());
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bh.consume(l3.toArray());
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bh.consume(l0.toArray());
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bh.consume(fsl3.toArray());
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void toTypedArrayFromSet(Blackhole bh) {
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bh.consume(fs4.toArray(new String[0]));
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bh.consume(s1.toArray(new String[0]));
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bh.consume(s3.toArray(new String[0]));
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bh.consume(fs2.toArray(new String[0]));
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bh.consume(s0.toArray(new String[0]));
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void toTypedArrayFromMap(Blackhole bh) {
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bh.consume(fm4.entrySet().toArray(new Map.Entry[0]));
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bh.consume(m1.entrySet().toArray(new Map.Entry[0]));
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bh.consume(m3.entrySet().toArray(new Map.Entry[0]));
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bh.consume(fm2.entrySet().toArray(new Map.Entry[0]));
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bh.consume(m0.entrySet().toArray(new Map.Entry[0]));
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void toTypedArrayFromList(Blackhole bh) {
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bh.consume(fl4.toArray(new String[0]));
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bh.consume(fl1.toArray(new String[0]));
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bh.consume(l3.toArray(new String[0]));
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bh.consume(l0.toArray(new String[0]));
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bh.consume(fsl3.toArray(new String[0]));
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void copyOfLists(Blackhole bh) {
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bh.consume(List.copyOf(fl1));
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bh.consume(List.copyOf(fl4));
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bh.consume(List.copyOf(fsl2));
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bh.consume(List.copyOf(fsl3));
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}
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public String get2(List<String> list, int idx) {
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return list.get(idx);
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}
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public String get(List<String> list, int idx) {
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return list.get(idx);
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public Set<String> createSetOf() {
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return Set.of(STRINGS);
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}
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}
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