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8257074: Update the ByteBuffers micro benchmark
Reviewed-by: redestad, dfuchs, jvernee, bpb
This commit is contained in:
Chris Hegarty
parent
7ed591cc9a
commit
ac276bb394
11 changed files with 2858 additions and 255 deletions
289
test/micro/org/openjdk/bench/java/nio/IntBuffers.java
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test/micro/org/openjdk/bench/java/nio/IntBuffers.java
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/*
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* Copyright (c) 2020, 2021, 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.nio;
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import org.openjdk.jmh.annotations.Benchmark;
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import org.openjdk.jmh.annotations.BenchmarkMode;
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import org.openjdk.jmh.annotations.Fork;
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import org.openjdk.jmh.annotations.Measurement;
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import org.openjdk.jmh.annotations.Mode;
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import org.openjdk.jmh.annotations.OutputTimeUnit;
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import org.openjdk.jmh.annotations.Param;
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import org.openjdk.jmh.annotations.Scope;
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import org.openjdk.jmh.annotations.Setup;
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import org.openjdk.jmh.annotations.State;
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import org.openjdk.jmh.annotations.Warmup;
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import java.nio.*;
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import java.util.concurrent.TimeUnit;
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import static java.nio.ByteOrder.*;
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/**
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* Benchmark for memory access operations on java.nio.Buffer ( and its views )
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*
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* A large number of variants are covered. The individual benchmarks conform to
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* the following convention:
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* test(Direct|Heap)(Bulk|Loop)(Get|Put)Int(View)?(Swap)?(RO)?
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*
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* This allows to easily run a subset of particular interest. For example:
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* Direct only :- "org.openjdk.bench.java.nio.IntBuffers.testDirect.*"
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* Bulk only :- "org.openjdk.bench.java.nio.IntBuffers.test.*Bulk.*"
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* Loop Put Swapped Views: -
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* test(Direct|Heap)(Loop)(Put)Int(View)+(Swap)+"
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*/
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@BenchmarkMode(Mode.AverageTime)
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@Warmup(iterations = 5, time = 500, timeUnit = TimeUnit.MILLISECONDS)
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@Measurement(iterations = 10, time = 500, timeUnit = TimeUnit.MILLISECONDS)
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@OutputTimeUnit(TimeUnit.NANOSECONDS)
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@State(Scope.Thread)
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@Fork(3)
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public class IntBuffers {
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static final int CARRIER_BYTE_WIDTH = 4;
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@Param({"16", "1024", "131072"})
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private int size;
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public int intValue;
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public int[] intArray;
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public IntBuffer heapIntBuffer;
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public IntBuffer heapIntBufferRO;
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public IntBuffer heapByteBufferAsIntBufferView;
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public IntBuffer heapByteBufferAsIntBufferViewRO;
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public IntBuffer heapByteBufferAsIntBufferViewSwap;
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public IntBuffer heapByteBufferAsIntBufferViewSwapRO;
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public IntBuffer directByteBufferAsIntBufferView;
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public IntBuffer directByteBufferAsIntBufferViewRO;
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public IntBuffer directByteBufferAsIntBufferViewSwap;
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public IntBuffer directByteBufferAsIntBufferViewSwapRO;
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@Setup
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public void setup() {
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intArray = new int[size / CARRIER_BYTE_WIDTH];
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// explicitly allocated heap carrier buffer
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heapIntBuffer = IntBuffer.allocate(size / CARRIER_BYTE_WIDTH);
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heapIntBufferRO = IntBuffer.allocate(size / CARRIER_BYTE_WIDTH).asReadOnlyBuffer();
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// ByteBuffer views
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heapByteBufferAsIntBufferView = ByteBuffer.allocate(size).order(nativeOrder()).asIntBuffer();
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heapByteBufferAsIntBufferViewRO = ByteBuffer.allocate(size).order(nativeOrder()).asIntBuffer().asReadOnlyBuffer();
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directByteBufferAsIntBufferView = ByteBuffer.allocateDirect(size).order(nativeOrder()).asIntBuffer();
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directByteBufferAsIntBufferViewRO = ByteBuffer.allocateDirect(size).order(nativeOrder()).asIntBuffer().asReadOnlyBuffer();
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// endianness swapped
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ByteOrder nonNativeOrder = nativeOrder() == BIG_ENDIAN ? LITTLE_ENDIAN : BIG_ENDIAN;
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heapByteBufferAsIntBufferViewSwap = ByteBuffer.allocate(size).order(nonNativeOrder).asIntBuffer();
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heapByteBufferAsIntBufferViewSwapRO = ByteBuffer.allocate(size).order(nonNativeOrder).asIntBuffer().asReadOnlyBuffer();
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directByteBufferAsIntBufferViewSwap = ByteBuffer.allocateDirect(size).order(nonNativeOrder).asIntBuffer();
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directByteBufferAsIntBufferViewSwapRO = ByteBuffer.allocateDirect(size).order(nonNativeOrder).asIntBuffer().asReadOnlyBuffer();
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}
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// ---------------- HELPER METHODS
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private int innerLoopGetInt(IntBuffer buf) {
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int r = 0;
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for (int i = 0; i < buf.capacity(); i++) {
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r += buf.get(i);
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}
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return r;
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}
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private void innerLoopPutInt(IntBuffer buf) {
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for (int i = 0; i < buf.capacity(); i++) {
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buf.put(i, intValue);
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}
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}
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// -- Heap___
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@Benchmark
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public int[] testHeapBulkPutInt() {
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heapIntBuffer.put(0, intArray);
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return intArray;
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}
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@Benchmark
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public int[] testHeapBulkGetInt() {
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heapIntBuffer.get(0, intArray);
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return intArray;
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}
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@Benchmark
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public void testHeapLoopPutInt() {
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innerLoopPutInt(heapIntBuffer);
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}
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@Benchmark
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public int testHeapLoopGetInt() {
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return innerLoopGetInt(heapIntBuffer);
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}
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// -- Heap_View_Swap_RO
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@Benchmark
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public int[] testHeapBulkGetIntViewSwapRO() {
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heapByteBufferAsIntBufferViewSwapRO.get(0, intArray);
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return intArray;
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}
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@Benchmark
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public int testHeapLoopGetIntViewSwapRO() {
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return innerLoopGetInt(heapByteBufferAsIntBufferViewSwapRO);
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}
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// -- Heap_View_Swap_
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@Benchmark
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public int[] testHeapBulkPutIntViewSwap() {
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heapByteBufferAsIntBufferViewSwap.put(0, intArray);
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return intArray;
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}
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@Benchmark
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public int[] testHeapBulkGetIntViewSwap() {
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heapByteBufferAsIntBufferViewSwap.get(0, intArray);
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return intArray;
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}
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@Benchmark
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public void testHeapLoopPutIntViewSwap() {
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innerLoopPutInt(heapByteBufferAsIntBufferViewSwap);
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}
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@Benchmark
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public int testHeapLoopGetIntViewSwap() {
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return innerLoopGetInt(heapByteBufferAsIntBufferViewSwap);
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}
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// -- Heap_View__RO
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@Benchmark
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public int[] testHeapBulkGetIntViewRO() {
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heapByteBufferAsIntBufferViewRO.get(0, intArray);
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return intArray;
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}
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@Benchmark
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public int testHeapLoopGetIntViewRO() {
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return innerLoopGetInt(heapByteBufferAsIntBufferViewRO);
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}
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// -- Heap_View__
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@Benchmark
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public int[] testHeapBulkPutIntView() {
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heapByteBufferAsIntBufferView.put(0, intArray);
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return intArray;
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}
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@Benchmark
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public int[] testHeapBulkGetIntView() {
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heapByteBufferAsIntBufferView.get(0, intArray);
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return intArray;
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}
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@Benchmark
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public void testHeapLoopPutIntView() {
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innerLoopPutInt(heapByteBufferAsIntBufferView);
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}
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@Benchmark
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public int testHeapLoopGetIntView() {
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return innerLoopGetInt(heapByteBufferAsIntBufferView);
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}
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// -- Direct_View_Swap_RO
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@Benchmark
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public int[] testDirectBulkGetIntViewSwapRO() {
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directByteBufferAsIntBufferViewSwapRO.get(0, intArray);
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return intArray;
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}
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@Benchmark
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public int testDirectLoopGetIntViewSwapRO() {
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return innerLoopGetInt(directByteBufferAsIntBufferViewSwapRO);
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}
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// -- Direct_View_Swap_
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@Benchmark
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public int[] testDirectBulkPutIntViewSwap() {
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directByteBufferAsIntBufferViewSwap.put(0, intArray);
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return intArray;
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}
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@Benchmark
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public int[] testDirectBulkGetIntViewSwap() {
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directByteBufferAsIntBufferViewSwap.get(0, intArray);
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return intArray;
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}
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@Benchmark
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public void testDirectLoopPutIntViewSwap() {
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innerLoopPutInt(directByteBufferAsIntBufferViewSwap);
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}
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@Benchmark
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public int testDirectLoopGetIntViewSwap() {
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return innerLoopGetInt(directByteBufferAsIntBufferViewSwap);
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}
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// -- Direct_View__RO
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@Benchmark
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public int[] testDirectBulkGetIntViewRO() {
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directByteBufferAsIntBufferViewRO.get(0, intArray);
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return intArray;
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}
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@Benchmark
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public int testDirectLoopGetIntViewRO() {
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return innerLoopGetInt(directByteBufferAsIntBufferViewRO);
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}
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// -- Direct_View__
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@Benchmark
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public int[] testDirectBulkPutIntView() {
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directByteBufferAsIntBufferView.put(0, intArray);
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return intArray;
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}
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@Benchmark
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public int[] testDirectBulkGetIntView() {
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directByteBufferAsIntBufferView.get(0, intArray);
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return intArray;
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}
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@Benchmark
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public void testDirectLoopPutIntView() {
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innerLoopPutInt(directByteBufferAsIntBufferView);
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}
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@Benchmark
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public int testDirectLoopGetIntView() {
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return innerLoopGetInt(directByteBufferAsIntBufferView);
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}
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}
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