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

History

265 lines (231 loc) · 7.71 KB

Raw

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

* 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.util.Arrays.copyOfRange;

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

import static jetbrains.exodus.bindings.IntegerBinding.intToEntry;

import static jetbrains.exodus.bindings.StringBinding.stringToEntry;

import static jetbrains.exodus.env.Environments.newInstance;

import static jetbrains.exodus.env.StoreConfig.WITHOUT_DUPLICATES_WITH_PREFIXING;

import static org.lmdbjava.bench.Common.RND_MB;

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.IOException;

import net.jpountz.xxhash.StreamingXXHash64;

import net.jpountz.xxhash.XXHashFactory;

import jetbrains.exodus.ArrayByteIterable;

import jetbrains.exodus.ByteIterable;

import jetbrains.exodus.env.Cursor;

import jetbrains.exodus.env.Environment;

import jetbrains.exodus.env.EnvironmentConfig;

import jetbrains.exodus.env.Store;

import jetbrains.exodus.env.Transaction;

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 Xodus {

@Benchmark

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

r.crc.reset();

try (Cursor c = r.store.openCursor(r.tx)) {

while (c.getNext()) {

r.crc.update(c.getKey().getBytesUnsafe(), 0, r.keySize);

r.crc.update(c.getValue().getBytesUnsafe(), 0, r.valSize);

}

bh.consume(r.crc.getValue());

}

@Benchmark

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

for (final int key : r.keys) {

if (r.intKey) {

final ByteIterable val = r.store.get(r.tx, intToEntry(key));

if (val != null) {

bh.consume(val.getBytesUnsafe());

}

} else {

final ByteIterable val = r.store.get(r.tx, stringToEntry(r.padKey(key)));

if (val != null) {

bh.consume(val.getBytesUnsafe());

}

@Benchmark

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

try (Cursor c = r.store.openCursor(r.tx)) {

c.getLast();

do {

bh.consume(c.getValue().getBytesUnsafe());

} while (c.getPrev());

}

@Benchmark

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

try (Cursor c = r.store.openCursor(r.tx)) {

while (c.getNext()) {

bh.consume(c.getValue().getBytesUnsafe());

}

@Benchmark

public void readXxh64(final Reader r, final Blackhole bh) {

r.xxh.reset();

try (Cursor c = r.store.openCursor(r.tx)) {

while (c.getNext()) {

r.xxh.update(c.getKey().getBytesUnsafe(), 0, r.keySize);

r.xxh.update(c.getValue().getBytesUnsafe(), 0, r.valSize);

}

bh.consume(r.xxh.getValue());

}

@Benchmark

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

w.write();

}

@State(value = Benchmark)

public static class CommonXodus extends Common {

Environment env;

Store store;

@Override

public void setup(final BenchmarkParams b) throws IOException {

super.setup(b);

final EnvironmentConfig cfg = new EnvironmentConfig();

// size of immutable .xd file is 32MB

cfg.setLogFileSize(32 * 1_024);

cfg.setLogCachePageSize(0x2_0000);

env = newInstance(tmp, cfg);

env.executeInTransaction((final Transaction txn) -> {

// WITHOUT_DUPLICATES_WITH_PREFIXING means Patricia tree is used,

// not B+Tree (WITHOUT_DUPLICATES)

// Patricia tree gives faster random access, both for reading and writing

store = env.openStore("without_dups", WITHOUT_DUPLICATES_WITH_PREFIXING,

txn);

});

}

@Override

public void teardown() throws IOException {

reportSpaceBeforeClose();

env.close();

super.teardown();

}

void write() {

// optimal w/ valSize=16368 + default run

final int batchSize = Math.max(1_000_000 / valSize, 1_000);

final RandomBytesIterator rbi = new RandomBytesIterator(valSize);

int k = 0;

while (k < keys.length) {

// write in several transactions so as not to block GC

final int keyStartIndex = k;

k += batchSize;

env.executeInTransaction((final Transaction tx) -> {

for (int i = 0, j = keyStartIndex; i < batchSize && j < keys.length;

i++, j++) {

final int key = keys[j];

final ByteIterable keyBi;

final ByteIterable valBi;

if (intKey) {

keyBi = intToEntry(key);

} else {

keyBi = stringToEntry(padKey(key));

}

if (valRandom) {

valBi = new ArrayByteIterable(rbi.nextBytes());

} else {

final byte[] bytes = new byte[valSize];

bytes[0] = (byte) (key >>> 24);

bytes[1] = (byte) (key >>> 16);

bytes[2] = (byte) (key >>> 8);

bytes[3] = (byte) key;

valBi = new ArrayByteIterable(bytes, valSize);

}

if (sequential) {

store.putRight(tx, keyBi, valBi);

} else {

store.put(tx, keyBi, valBi);

}

});

}

@State(Benchmark)

public static class Reader extends CommonXodus {

Transaction tx;

StreamingXXHash64 xxh;

@Setup(Trial)

@Override

public void setup(final BenchmarkParams b) throws IOException {

super.setup(b);

super.write();

tx = env.beginReadonlyTransaction();

xxh = XXHashFactory.fastestJavaInstance().newStreamingHash64(0);

// cannot share Cursor, as there's no Cursor.getFirst() to reset methods

}

@TearDown(Trial)

@Override

public void teardown() throws IOException {

tx.abort();

super.teardown();

}

@State(Benchmark)

public static class Writer extends CommonXodus {

@Setup(Invocation)

@Override

public void setup(final BenchmarkParams b) throws IOException {

super.setup(b);

}

@TearDown(Invocation)

@Override

public void teardown() throws IOException {

super.teardown();

}

private static class RandomBytesIterator {

private int i;

private final int rndByteMax;

private final int valSize;

RandomBytesIterator(final int valSize) {

this.valSize = valSize;

rndByteMax = RND_MB.length - valSize;

i = 0;

}

byte[] nextBytes() {

final byte[] result = copyOfRange(RND_MB, i, valSize);

i += valSize;

if (i >= rndByteMax) {

i = 0;

}

return result;

}

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

Uh oh!

Expand file tree

Breadcrumbs

Xodus.java

Latest commit

History

Breadcrumbs

Xodus.java

File metadata and controls