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...rks/src/main/java/org/opensearch/benchmark/store/remote/filecache/FileCacheBenchmark.java
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| @@ -0,0 +1,150 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
|
|
||
| package org.opensearch.benchmark.store.remote.filecache; | ||
|
|
||
| import java.nio.file.Path; | ||
| import java.nio.file.Paths; | ||
| import java.util.concurrent.ThreadLocalRandom; | ||
| import java.util.concurrent.TimeUnit; | ||
|
|
||
| import org.apache.lucene.store.IndexInput; | ||
| 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.Mode; | ||
| import org.openjdk.jmh.annotations.OutputTimeUnit; | ||
| import org.openjdk.jmh.annotations.Param; | ||
| import org.openjdk.jmh.annotations.Scope; | ||
| import org.openjdk.jmh.annotations.Setup; | ||
| import org.openjdk.jmh.annotations.State; | ||
| import org.openjdk.jmh.annotations.Threads; | ||
| import org.openjdk.jmh.annotations.Warmup; | ||
| import org.openjdk.jmh.infra.Blackhole; | ||
| import org.opensearch.index.store.remote.filecache.CachedIndexInput; | ||
| import org.opensearch.index.store.remote.filecache.FileCache; | ||
| import org.opensearch.index.store.remote.filecache.FileCacheFactory; | ||
|
|
||
| /** | ||
| * Simple benchmark test of {@link FileCache}. It uses a uniform random distribution | ||
| * of keys, which is very simple but unlikely to be representative of any real life | ||
| * workload. | ||
| */ | ||
| @Warmup(iterations = 1) | ||
| @Measurement(iterations = 1) | ||
| @Fork(1) | ||
| @BenchmarkMode(Mode.Throughput) | ||
| @OutputTimeUnit(TimeUnit.MILLISECONDS) | ||
| @State(Scope.Thread) | ||
| @Threads(8) | ||
| @SuppressWarnings("unused") // invoked by benchmarking framework | ||
| public class FileCacheBenchmark { | ||
| private static final CachedIndexInput INDEX_INPUT = new FixedSizeStubIndexInput(); | ||
|
|
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| @Benchmark | ||
| public void get(CacheParameters parameters, Blackhole blackhole) { | ||
| blackhole.consume(parameters.fileCache.get(randomKeyInCache(parameters))); | ||
| } | ||
|
|
||
| @Benchmark | ||
| public void replace(CacheParameters parameters, Blackhole blackhole) { | ||
| blackhole.consume(parameters.fileCache.put(randomKeyInCache(parameters), INDEX_INPUT)); | ||
| } | ||
|
|
||
| @Benchmark | ||
| public void put(CacheParameters parameters, Blackhole blackhole) { | ||
| blackhole.consume(parameters.fileCache.put(randomKeyNotInCache(parameters), INDEX_INPUT)); | ||
| } | ||
|
|
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| @Benchmark | ||
| public void remove(CacheParameters parameters) { | ||
| parameters.fileCache.remove(randomKeyInCache(parameters)); | ||
| } | ||
|
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| private static Path randomKeyInCache(CacheParameters parameters) { | ||
| int i = ThreadLocalRandom.current().nextInt(parameters.maximumNumberOfEntries); | ||
| return Paths.get(Integer.toString(i)); | ||
| } | ||
|
|
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| private static Path randomKeyNotInCache(CacheParameters parameters) { | ||
| int i = ThreadLocalRandom.current().nextInt(parameters.maximumNumberOfEntries, parameters.maximumNumberOfEntries * 2); | ||
| return Paths.get(Integer.toString(i)); | ||
| } | ||
|
|
||
| @State(Scope.Benchmark) | ||
| public static class CacheParameters { | ||
| @Param({ "65536", "1048576" }) | ||
| int maximumNumberOfEntries; | ||
|
|
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| @Param({ "1", "8" }) | ||
| int concurrencyLevel; | ||
|
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| FileCache fileCache; | ||
|
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| @Setup | ||
| public void setup() { | ||
| fileCache = FileCacheFactory.createConcurrentLRUFileCache( | ||
| (long) maximumNumberOfEntries * INDEX_INPUT.length(), | ||
| concurrencyLevel | ||
| ); | ||
| for (long i = 0; i < maximumNumberOfEntries; i++) { | ||
| final Path key = Paths.get(Long.toString(i)); | ||
| fileCache.put(key, INDEX_INPUT); | ||
| fileCache.decRef(key); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Stubbed out IndexInput that does nothing but report a fixed size | ||
| */ | ||
| private static class FixedSizeStubIndexInput extends CachedIndexInput { | ||
| private FixedSizeStubIndexInput() { | ||
| super(FixedSizeStubIndexInput.class.getSimpleName()); | ||
| } | ||
|
|
||
| @Override | ||
| public boolean isClosed() { | ||
| return false; | ||
| } | ||
|
|
||
| @Override | ||
| public void close() {} | ||
|
|
||
| @Override | ||
| public long getFilePointer() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
|
||
| @Override | ||
| public void seek(long pos) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
|
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| @Override | ||
| public long length() { | ||
| return 1024 * 1024 * 8; // 8MiB | ||
| } | ||
|
|
||
| @Override | ||
| public IndexInput slice(String sliceDescription, long offset, long length) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
|
||
| @Override | ||
| public byte readByte() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
|
||
| @Override | ||
| public void readBytes(byte[] b, int offset, int len) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
| } | ||
| } |
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