benchmarks/src/main/java/org/lmdbjava/bench/Chronicle.java at master · lmdbjava/benchmarks · GitHub

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* Licensed 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.

package org.lmdbjava.bench;

import static java.nio.ByteOrder.LITTLE_ENDIAN;

import static java.util.concurrent.TimeUnit.MILLISECONDS;

import static net.openhft.chronicle.map.ChronicleMap.of;

import static org.openjdk.jmh.annotations.Level.Invocation;

import static org.openjdk.jmh.annotations.Level.Trial;

import static org.openjdk.jmh.annotations.Mode.SampleTime;

import static org.openjdk.jmh.annotations.Scope.Benchmark;

import java.io.File;

import java.io.IOException;

import net.openhft.chronicle.map.ChronicleMap;

import org.agrona.MutableDirectBuffer;

import org.agrona.concurrent.UnsafeBuffer;

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.OutputTimeUnit;

import org.openjdk.jmh.annotations.Setup;

import org.openjdk.jmh.annotations.State;

import org.openjdk.jmh.annotations.TearDown;

import org.openjdk.jmh.annotations.Warmup;

import org.openjdk.jmh.infra.BenchmarkParams;

import org.openjdk.jmh.infra.Blackhole;

@OutputTimeUnit(MILLISECONDS)

@Fork(1)

@Warmup(iterations = 3)

@Measurement(iterations = 3)

@BenchmarkMode(SampleTime)

public class Chronicle {

// Chroncile Map does not provide ordered keys, so no CRC/XXH64/rev/prev test

@Benchmark

public void readKey(final Reader r, final Blackhole bh) {

for (final int key : r.keys) {

if (r.intKey) {

r.wkb.putInt(0, key);

} else {

r.wkb.putStringWithoutLengthUtf8(0, r.padKey(key));

}

bh.consume(r.map.getUsing(r.wkb.byteArray(), r.wvb.byteArray()));

}

@Benchmark

public void write(final Writer w, final Blackhole bh) {

w.write();

}

@State(value = Benchmark)

public static class CommonChroncileMap extends Common {

ChronicleMap<byte[], byte[]> map;

/**

* Writable key buffer. Backed by a plain byte[] for Chroncile API ease.

MutableDirectBuffer wkb;

/**

* Writable value buffer. Backed by a plain byte[] for Chroncile API ease.

MutableDirectBuffer wvb;

@Override

public void setup(final BenchmarkParams b) throws IOException {

super.setup(b);

wkb = new UnsafeBuffer(new byte[keySize]);

wvb = new UnsafeBuffer(new byte[valSize]);

try {

map = of(byte[].class, byte[].class)

.constantKeySizeBySample(new byte[keySize])

.constantValueSizeBySample(new byte[valSize])

.entries(num)

.createPersistedTo(new File(tmp, "chroncile.map"));

} catch (final IOException ex) {

throw new IllegalStateException(ex);

}

@Override

public void teardown() throws IOException {

reportSpaceBeforeClose();

map.close();

super.teardown();

}

void write() {

final int rndByteMax = RND_MB.length - valSize;

int rndByteOffset = 0;

for (final int key : keys) {

if (intKey) {

wkb.putInt(0, key, LITTLE_ENDIAN);

} else {

wkb.putStringWithoutLengthUtf8(0, padKey(key));

}

if (valRandom) {

wvb.putBytes(0, RND_MB, rndByteOffset, valSize);

rndByteOffset += valSize;

if (rndByteOffset >= rndByteMax) {

rndByteOffset = 0;

}

} else {

wvb.putInt(0, key);

}

map.put(wkb.byteArray(), wvb.byteArray());

}

@State(Benchmark)

public static class Reader extends CommonChroncileMap {

@Setup(Trial)

@Override

public void setup(final BenchmarkParams b) throws IOException {

super.setup(b);

super.write();

}

@TearDown(Trial)

@Override

public void teardown() throws IOException {

super.teardown();

}

@State(Benchmark)

public static class Writer extends CommonChroncileMap {

@Setup(Invocation)

@Override

public final void setup(final BenchmarkParams b) throws IOException {

super.setup(b);

}

@TearDown(Invocation)

@Override

public final void teardown() throws IOException {

super.teardown();

}

benchmarks/src/main/java/org/lmdbjava/bench/Chronicle.java at master · lmdbjava/benchmarks · GitHub

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