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Add simulator support for LIRS2's traces
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42 changes: 42 additions & 0 deletions
42
.../src/main/java/com/github/benmanes/caffeine/cache/simulator/parser/BinaryTraceWriter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| /* | ||
| * Copyright 2021 Ben Manes. All Rights Reserved. | ||
| * | ||
| * 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 com.github.benmanes.caffeine.cache.simulator.parser; | ||
|
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| import java.io.DataOutputStream; | ||
| import java.io.IOException; | ||
| import java.io.OutputStream; | ||
|
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| /** | ||
| * A skeletal implementation that writes to the trace file as binary data. | ||
| * | ||
| * @author [email protected] (Ben Manes) | ||
| */ | ||
| public abstract class BinaryTraceWriter implements TraceWriter { | ||
| private final DataOutputStream writer; | ||
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| protected BinaryTraceWriter(OutputStream output) { | ||
| this.writer = new DataOutputStream(output); | ||
| } | ||
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| protected DataOutputStream writer() { | ||
| return writer; | ||
| } | ||
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| @Override | ||
| public void close() throws IOException { | ||
| writer.close(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -17,15 +17,11 @@ | |
|
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| import java.io.BufferedOutputStream; | ||
| import java.io.IOException; | ||
| import java.io.OutputStream; | ||
| import java.io.UncheckedIOException; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Path; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.stream.Stream; | ||
|
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| import com.github.benmanes.caffeine.cache.simulator.policy.AccessEvent; | ||
| import com.google.common.base.Stopwatch; | ||
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| import picocli.CommandLine; | ||
|
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@@ -38,7 +34,7 @@ | |
| * into Java. | ||
| * <p> | ||
| * <pre>{@code | ||
| * ./gradlew :simulator:rewrite \ | ||
| * ./gradlew :simulator:rewrite -q \ | ||
| * -PinputFormat=? \ | ||
| * -PinputFiles=? \ | ||
| * -PoutputFile=? \ | ||
|
|
@@ -47,11 +43,10 @@ | |
| * | ||
| * @author [email protected] (Ben Manes) | ||
| */ | ||
| @SuppressWarnings({"PMD.ImmutableField", "FieldCanBeFinal"}) | ||
| public final class Rewriter implements Runnable { | ||
| @Option(names = "--inputFiles", required = true, description = "The trace input files. To use " | ||
| + "a mix of formats, specify the entry as format:path, e.g. lirs:loop.trace.gz") | ||
| private List<String> inputFiles = new ArrayList<>(); | ||
| @Option(names = "--inputFiles", required = true, split = ",", description = "The trace input " | ||
| + "files. To use a mix of formats, specify the entry as format:path, e.g. lirs:loop.trace.gz") | ||
| private List<String> inputFiles; | ||
| @Option(names = "--inputFormat", required = true, description = "The default trace input format") | ||
| private TraceFormat inputFormat; | ||
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@@ -62,10 +57,10 @@ public final class Rewriter implements Runnable { | |
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| @Override | ||
| public void run() { | ||
| Stopwatch stopwatch = Stopwatch.createStarted(); | ||
| try (OutputStream output = new BufferedOutputStream(Files.newOutputStream(outputFile)); | ||
| Stream<AccessEvent> events = inputFormat.readFiles(inputFiles).events(); | ||
| TraceWriter writer = outputFormat.writer(output)) { | ||
| var stopwatch = Stopwatch.createStarted(); | ||
| try (var output = new BufferedOutputStream(Files.newOutputStream(outputFile)); | ||
| var events = inputFormat.readFiles(inputFiles).events(); | ||
| var writer = outputFormat.writer(output)) { | ||
| int[] tick = { 0 }; | ||
| writer.writeHeader(); | ||
| events.forEach(event -> { | ||
|
|
@@ -77,7 +72,8 @@ public void run() { | |
| } | ||
| }); | ||
| writer.writeFooter(); | ||
| System.out.printf("Rewrote %,d events in %s%n", tick[0], stopwatch); | ||
| System.out.printf("Rewrote %,d events from %,d inputs in %s%n", | ||
| tick[0], inputFiles.size(), stopwatch); | ||
| } catch (IOException e) { | ||
| throw new UncheckedIOException(e); | ||
| } | ||
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70 changes: 0 additions & 70 deletions
70
...main/java/com/github/benmanes/caffeine/cache/simulator/parser/climb/ClimbTraceReader.java
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48 changes: 48 additions & 0 deletions
48
...ithub/benmanes/caffeine/cache/simulator/parser/cloud_physics/CloudPhysicsTraceReader.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| /* | ||
| * Copyright 2021 Ben Manes. All Rights Reserved. | ||
| * | ||
| * 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 com.github.benmanes.caffeine.cache.simulator.parser.cloud_physics; | ||
|
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| import java.io.DataInputStream; | ||
| import java.io.IOException; | ||
| import java.util.Set; | ||
|
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| import com.github.benmanes.caffeine.cache.simulator.parser.BinaryTraceReader; | ||
| import com.github.benmanes.caffeine.cache.simulator.policy.AccessEvent; | ||
| import com.github.benmanes.caffeine.cache.simulator.policy.Policy.Characteristic; | ||
| import com.google.common.collect.ImmutableSet; | ||
|
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| /** | ||
| * A reader for the trace files provided by the author of LIRS2. See | ||
| * <a href="https://github.com/zhongch4g/LIRS2">traces</a>. | ||
| * | ||
| * @author [email protected] (Ben Manes) | ||
| */ | ||
| public final class CloudPhysicsTraceReader extends BinaryTraceReader { | ||
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| public CloudPhysicsTraceReader(String filePath) { | ||
| super(filePath); | ||
| } | ||
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| @Override | ||
| public Set<Characteristic> characteristics() { | ||
| return ImmutableSet.of(); | ||
| } | ||
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| @Override | ||
| protected AccessEvent readEvent(DataInputStream input) throws IOException { | ||
| return AccessEvent.forKey(Integer.toUnsignedLong(input.readInt())); | ||
| } | ||
| } |
41 changes: 41 additions & 0 deletions
41
...ithub/benmanes/caffeine/cache/simulator/parser/cloud_physics/CloudPhysicsTraceWriter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| /* | ||
| * Copyright 2021 Ben Manes. All Rights Reserved. | ||
| * | ||
| * 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 com.github.benmanes.caffeine.cache.simulator.parser.cloud_physics; | ||
|
|
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| import java.io.IOException; | ||
| import java.io.OutputStream; | ||
|
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| import com.github.benmanes.caffeine.cache.simulator.parser.BinaryTraceWriter; | ||
| import com.github.benmanes.caffeine.cache.simulator.policy.AccessEvent; | ||
| import com.google.common.hash.Hashing; | ||
|
|
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| /** | ||
| * A writer for the trace format used by the authors of the LIRS2 algorithm. | ||
| * | ||
| * @author [email protected] (Ben Manes) | ||
| */ | ||
| public final class CloudPhysicsTraceWriter extends BinaryTraceWriter { | ||
|
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| public CloudPhysicsTraceWriter(OutputStream output) { | ||
| super(output); | ||
| } | ||
|
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| @Override | ||
| public void writeEvent(int tick, AccessEvent event) throws IOException { | ||
| int key = Hashing.murmur3_128().hashLong(event.key()).asInt(); | ||
| writer().writeInt(key); | ||
| } | ||
| } |
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