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Overhaul benchmarking infrastructure (#63)
Significantly reduces the overhead of benchmarking and provides more reliable real-world numbers
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184 changes: 0 additions & 184 deletions
184
eventbus-jmh/src/main/java/net/minecraftforge/eventbus/benchmarks/BenchmarkBase.java
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124 changes: 124 additions & 0 deletions
124
eventbus-jmh/src/main/java/net/minecraftforge/eventbus/benchmarks/BenchmarkUtils.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| /* | ||
| * Copyright (c) Forge Development LLC | ||
| * SPDX-License-Identifier: LGPL-2.1-only | ||
| */ | ||
| package net.minecraftforge.eventbus.benchmarks; | ||
|
|
||
| import cpw.mods.modlauncher.Launcher; | ||
| import cpw.mods.modlauncher.api.ServiceRunner; | ||
| import net.minecraftforge.securemodules.SecureModuleClassLoader; | ||
| import net.minecraftforge.unsafe.UnsafeHacks; | ||
| import org.openjdk.jmh.infra.Blackhole; | ||
|
|
||
| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.lang.module.ModuleFinder; | ||
| import java.util.List; | ||
| import java.util.function.Consumer; | ||
|
|
||
| public final class BenchmarkUtils { | ||
| private BenchmarkUtils() {} | ||
|
|
||
| private static final String MANAGER = "net.minecraftforge.eventbus.testjar.benchmarks.BenchmarkManager"; | ||
|
|
||
| public static void setupTransformedEnvironment() { | ||
| try { | ||
| var jar = findTestJar(); | ||
|
|
||
| setupBaseEnvironment(); | ||
|
|
||
| System.setProperty("test.harness.game", jar.getAbsolutePath()); // Jars to put in the game layer | ||
| System.setProperty("test.harness.callable", BenchmarkUtils.TestCallback.class.getName()); | ||
|
|
||
| // Reflectively call `new Launcher().run("--launchTarget", "testharness")` to skip | ||
| // some logging in Launcher#main(String[]) | ||
| var launcher = Class.forName(Launcher.class.getName()); | ||
| var ctr = launcher.getDeclaredConstructor(); | ||
| UnsafeHacks.setAccessible(ctr); | ||
| var inst = ctr.newInstance(); | ||
| var main = launcher.getDeclaredMethod("run", String[].class); | ||
| UnsafeHacks.setAccessible(main); | ||
| main.invoke(inst, (Object) new String[] { "--launchTarget", "testharness" }); | ||
|
|
||
| validateEnvironment(true); | ||
| } catch (Exception e) { | ||
| sneak(e); | ||
| } | ||
| } | ||
|
|
||
| public static void setupNormalEnvironment() { | ||
| setupBaseEnvironment(); | ||
| validateEnvironment(false); | ||
| } | ||
|
|
||
| // Boilerplate that ModLauncher's test harness requires | ||
| public static final class TestCallback { | ||
| // This is reflectively called by ModLauncher's test harness launch target. The required method name and type | ||
| // are hardcoded, and its containing class is defined by the system property "test.harness.callable". | ||
| public static ServiceRunner supplier() { | ||
| return ServiceRunner.NOOP; | ||
| } | ||
| } | ||
|
|
||
| @SuppressWarnings("unchecked") | ||
| public static Consumer<Blackhole> getPostingBenchmark(String name, int multiplier) { | ||
| try { | ||
| return (Consumer<Blackhole>) getBenchmarkManager() | ||
| .getDeclaredMethod("getPostingBenchmark", String.class, int.class) | ||
| .invoke(null, name, multiplier); | ||
| } catch (Exception e) { | ||
| sneak(e); | ||
| throw new AssertionError("Unreachable"); | ||
| } | ||
| } | ||
|
|
||
| public static Runnable[] getRegistrationBenchmark(String name) { | ||
| try { | ||
| return (Runnable[]) getBenchmarkManager() | ||
| .getDeclaredMethod("getRegistrationBenchmark", String.class) | ||
| .invoke(null, name); | ||
| } catch (Exception e) { | ||
| sneak(e); | ||
| throw new AssertionError("Unreachable"); | ||
| } | ||
| } | ||
|
|
||
| private static void setupBaseEnvironment() { | ||
| try { | ||
| var jar = findTestJar(); | ||
| var cfg = ModuleLayer.boot().configuration().resolveAndBind(ModuleFinder.of(jar.toPath()), ModuleFinder.ofSystem(), List.of("net.minecraftforge.eventbus.testjars")); | ||
| var cl = new SecureModuleClassLoader("MODULE-CLASSLOADER", null, cfg, List.of(ModuleLayer.boot())); | ||
| Thread.currentThread().setContextClassLoader(cl); | ||
| } catch (Exception e) { | ||
| sneak(e); | ||
| throw new AssertionError("Unreachable"); | ||
| } | ||
| } | ||
|
|
||
| private static File findTestJar() throws IOException { | ||
| var jar = new File("../eventbus-test-jar/build/libs/eventbus-test-jar.jar").getCanonicalFile(); | ||
| if (!jar.exists()) | ||
| throw new RuntimeException("Could not find test jar at: " + jar); | ||
|
|
||
| return jar; | ||
| } | ||
|
|
||
| private static Class<?> getBenchmarkManager() throws Exception { | ||
| return Class.forName(MANAGER, false, Thread.currentThread().getContextClassLoader()); | ||
| } | ||
|
|
||
| private static void validateEnvironment(boolean shouldBeTransformed) { | ||
| try { | ||
| getBenchmarkManager() | ||
| .getDeclaredMethod("validate", boolean.class) | ||
| .invoke(null, shouldBeTransformed); | ||
| } catch (Exception e) { | ||
| sneak(e); | ||
| } | ||
| } | ||
|
|
||
| @SuppressWarnings("unchecked") | ||
| private static <E extends Throwable> void sneak(Throwable e) throws E { | ||
| throw (E) e; | ||
| } | ||
| } |
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21 changes: 0 additions & 21 deletions
21
...tbus-test-jar/src/main/java/net/minecraftforge/eventbus/testjar/benchmarks/Benchmark.java
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118 changes: 118 additions & 0 deletions
118
...r/src/main/java/net/minecraftforge/eventbus/testjar/benchmarks/ModLauncherBenchmarks.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| /* | ||
| * Copyright (c) Forge Development LLC | ||
| * SPDX-License-Identifier: LGPL-2.1-only | ||
| */ | ||
|
|
||
| package net.minecraftforge.eventbus.testjar.benchmarks; | ||
|
|
||
| import net.minecraftforge.eventbus.api.BusBuilder; | ||
| import net.minecraftforge.eventbus.api.IEventBus; | ||
| import net.minecraftforge.eventbus.testjar.events.CancelableEvent; | ||
| import net.minecraftforge.eventbus.testjar.events.EventWithData; | ||
| import net.minecraftforge.eventbus.testjar.events.ResultEvent; | ||
| import net.minecraftforge.eventbus.testjar.subscribers.SubscriberDynamic; | ||
| import net.minecraftforge.eventbus.testjar.subscribers.SubscriberLambda; | ||
| import net.minecraftforge.eventbus.testjar.subscribers.SubscriberMixed; | ||
| import net.minecraftforge.eventbus.testjar.subscribers.SubscriberStatic; | ||
| import org.openjdk.jmh.infra.Blackhole; | ||
|
|
||
| import java.lang.invoke.MethodHandles; | ||
| import java.util.ArrayDeque; | ||
| import java.util.Deque; | ||
| import java.util.function.Consumer; | ||
| import java.util.function.IntFunction; | ||
| import java.util.function.Supplier; | ||
|
|
||
| public final class ModLauncherBenchmarks { | ||
| private ModLauncherBenchmarks() {} | ||
|
|
||
| public static final class Post { | ||
| private Post() {} | ||
| private static final IEventBus EVENT_BUS = BusBuilder.builder().useModLauncher().build(); | ||
|
|
||
| public static void setup(int multiplier, Supplier<Consumer<IEventBus>> registrar) { | ||
| for (int i = 0; i < multiplier; i++) | ||
| registrar.get().accept(EVENT_BUS); | ||
| } | ||
|
|
||
| public static void post(Blackhole bh) { | ||
| EVENT_BUS.post(new CancelableEvent()); | ||
| EVENT_BUS.post(new ResultEvent()); | ||
| EVENT_BUS.post(new EventWithData("Foo", 5, true)); | ||
| } | ||
|
|
||
| public static final class Factory { | ||
| private Factory() {} | ||
| public static final ClassFactory<IntFunction<Consumer<Blackhole>>> MIXED = new ClassFactory<>( | ||
| Post.class, | ||
| MethodHandles.lookup(), | ||
| (lookup, cls) -> multiplier -> | ||
| BenchmarkManager.setupPostingBenchmark(lookup, cls, multiplier, SubscriberMixed.Factory.REGISTER) | ||
| ); | ||
|
|
||
| public static final ClassFactory<IntFunction<Consumer<Blackhole>>> DYNAMIC = new ClassFactory<>( | ||
| Post.class, | ||
| MethodHandles.lookup(), | ||
| (lookup, cls) -> multiplier -> | ||
| BenchmarkManager.setupPostingBenchmark(lookup, cls, multiplier, SubscriberDynamic.Factory.REGISTER) | ||
| ); | ||
|
|
||
| public static final ClassFactory<IntFunction<Consumer<Blackhole>>> LAMBDA = new ClassFactory<>( | ||
| Post.class, | ||
| MethodHandles.lookup(), | ||
| (lookup, cls) -> multiplier -> | ||
| BenchmarkManager.setupPostingBenchmark(lookup, cls, multiplier, SubscriberLambda.Factory.REGISTER) | ||
| ); | ||
|
|
||
| public static final ClassFactory<IntFunction<Consumer<Blackhole>>> STATIC = new ClassFactory<>( | ||
| Post.class, | ||
| MethodHandles.lookup(), | ||
| (lookup, cls) -> multiplier -> | ||
| BenchmarkManager.setupPostingBenchmark(lookup, cls, multiplier, SubscriberStatic.Factory.REGISTER) | ||
| ); | ||
| } | ||
| } | ||
|
|
||
| public static final class Register { | ||
| private Register() {} | ||
|
|
||
| public static final class Dynamic extends RegistrationBenchmark { | ||
| private static final IEventBus EVENT_BUS = BusBuilder.builder().useModLauncher().build(); | ||
| private static final Deque<Consumer<IEventBus>> REGISTRARS = new ArrayDeque<>(BATCH_COUNT); | ||
|
|
||
| public static void setupIteration() { | ||
| setupIteration(REGISTRARS, SubscriberDynamic.Factory.REGISTER, EVENT_BUS); | ||
| } | ||
|
|
||
| public static void run() { | ||
| REGISTRARS.pop().accept(EVENT_BUS); | ||
| } | ||
| } | ||
|
|
||
| public static final class Lambda extends RegistrationBenchmark { | ||
| private static final IEventBus EVENT_BUS = BusBuilder.builder().useModLauncher().build(); | ||
| private static final Deque<Consumer<IEventBus>> REGISTRARS = new ArrayDeque<>(BATCH_COUNT); | ||
|
|
||
| public static void setupIteration() { | ||
| setupIteration(REGISTRARS, SubscriberLambda.Factory.REGISTER, EVENT_BUS); | ||
| } | ||
|
|
||
| public static void run() { | ||
| REGISTRARS.pop().accept(EVENT_BUS); | ||
| } | ||
| } | ||
|
|
||
| public static final class Static extends RegistrationBenchmark { | ||
| private static final IEventBus EVENT_BUS = BusBuilder.builder().useModLauncher().build(); | ||
| private static final Deque<Consumer<IEventBus>> REGISTRARS = new ArrayDeque<>(BATCH_COUNT); | ||
|
|
||
| public static void setupIteration() { | ||
| setupIteration(REGISTRARS, SubscriberStatic.Factory.REGISTER, EVENT_BUS); | ||
| } | ||
|
|
||
| public static void run() { | ||
| REGISTRARS.pop().accept(EVENT_BUS); | ||
| } | ||
| } | ||
| } | ||
| } |
118 changes: 118 additions & 0 deletions
118
...-jar/src/main/java/net/minecraftforge/eventbus/testjar/benchmarks/NoLoaderBenchmarks.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| /* | ||
| * Copyright (c) Forge Development LLC | ||
| * SPDX-License-Identifier: LGPL-2.1-only | ||
| */ | ||
|
|
||
| package net.minecraftforge.eventbus.testjar.benchmarks; | ||
|
|
||
| import net.minecraftforge.eventbus.api.BusBuilder; | ||
| import net.minecraftforge.eventbus.api.IEventBus; | ||
| import net.minecraftforge.eventbus.testjar.events.CancelableEvent; | ||
| import net.minecraftforge.eventbus.testjar.events.EventWithData; | ||
| import net.minecraftforge.eventbus.testjar.events.ResultEvent; | ||
| import net.minecraftforge.eventbus.testjar.subscribers.SubscriberDynamic; | ||
| import net.minecraftforge.eventbus.testjar.subscribers.SubscriberLambda; | ||
| import net.minecraftforge.eventbus.testjar.subscribers.SubscriberMixed; | ||
| import net.minecraftforge.eventbus.testjar.subscribers.SubscriberStatic; | ||
| import org.openjdk.jmh.infra.Blackhole; | ||
|
|
||
| import java.lang.invoke.MethodHandles; | ||
| import java.util.ArrayDeque; | ||
| import java.util.Deque; | ||
| import java.util.function.Consumer; | ||
| import java.util.function.IntFunction; | ||
| import java.util.function.Supplier; | ||
|
|
||
| public final class NoLoaderBenchmarks { | ||
| private NoLoaderBenchmarks() {} | ||
|
|
||
| public static final class Post { | ||
| private Post() {} | ||
| private static final IEventBus EVENT_BUS = BusBuilder.builder().build(); | ||
|
|
||
| public static void setup(int multiplier, Supplier<Consumer<IEventBus>> registrar) { | ||
| for (int i = 0; i < multiplier; i++) | ||
| registrar.get().accept(EVENT_BUS); | ||
| } | ||
|
|
||
| public static void post(Blackhole bh) { | ||
| EVENT_BUS.post(new CancelableEvent()); | ||
| EVENT_BUS.post(new ResultEvent()); | ||
| EVENT_BUS.post(new EventWithData("Foo", 5, true)); | ||
| } | ||
|
|
||
| public static final class Factory { | ||
| private Factory() {} | ||
| public static final ClassFactory<IntFunction<Consumer<Blackhole>>> MIXED = new ClassFactory<>( | ||
| Post.class, | ||
| MethodHandles.lookup(), | ||
| (lookup, cls) -> multiplier -> | ||
| BenchmarkManager.setupPostingBenchmark(lookup, cls, multiplier, SubscriberMixed.Factory.REGISTER) | ||
| ); | ||
|
|
||
| public static final ClassFactory<IntFunction<Consumer<Blackhole>>> DYNAMIC = new ClassFactory<>( | ||
| Post.class, | ||
| MethodHandles.lookup(), | ||
| (lookup, cls) -> multiplier -> | ||
| BenchmarkManager.setupPostingBenchmark(lookup, cls, multiplier, SubscriberDynamic.Factory.REGISTER) | ||
| ); | ||
|
|
||
| public static final ClassFactory<IntFunction<Consumer<Blackhole>>> LAMBDA = new ClassFactory<>( | ||
| Post.class, | ||
| MethodHandles.lookup(), | ||
| (lookup, cls) -> multiplier -> | ||
| BenchmarkManager.setupPostingBenchmark(lookup, cls, multiplier, SubscriberLambda.Factory.REGISTER) | ||
| ); | ||
|
|
||
| public static final ClassFactory<IntFunction<Consumer<Blackhole>>> STATIC = new ClassFactory<>( | ||
| Post.class, | ||
| MethodHandles.lookup(), | ||
| (lookup, cls) -> multiplier -> | ||
| BenchmarkManager.setupPostingBenchmark(lookup, cls, multiplier, SubscriberStatic.Factory.REGISTER) | ||
| ); | ||
| } | ||
| } | ||
|
|
||
| public static final class Register { | ||
| private Register() {} | ||
|
|
||
| public static final class Dynamic extends RegistrationBenchmark { | ||
| private static final IEventBus EVENT_BUS = BusBuilder.builder().build(); | ||
| private static final Deque<Consumer<IEventBus>> REGISTRARS = new ArrayDeque<>(BATCH_COUNT); | ||
|
|
||
| public static void setupIteration() { | ||
| setupIteration(REGISTRARS, SubscriberDynamic.Factory.REGISTER, EVENT_BUS); | ||
| } | ||
|
|
||
| public static void run() { | ||
| REGISTRARS.pop().accept(EVENT_BUS); | ||
| } | ||
| } | ||
|
|
||
| public static final class Lambda extends RegistrationBenchmark { | ||
| private static final IEventBus EVENT_BUS = BusBuilder.builder().build(); | ||
| private static final Deque<Consumer<IEventBus>> REGISTRARS = new ArrayDeque<>(BATCH_COUNT); | ||
|
|
||
| public static void setupIteration() { | ||
| setupIteration(REGISTRARS, SubscriberLambda.Factory.REGISTER, EVENT_BUS); | ||
| } | ||
|
|
||
| public static void run() { | ||
| REGISTRARS.pop().accept(EVENT_BUS); | ||
| } | ||
| } | ||
|
|
||
| public static final class Static extends RegistrationBenchmark { | ||
| private static final IEventBus EVENT_BUS = BusBuilder.builder().build(); | ||
| private static final Deque<Consumer<IEventBus>> REGISTRARS = new ArrayDeque<>(BATCH_COUNT); | ||
|
|
||
| public static void setupIteration() { | ||
| setupIteration(REGISTRARS, SubscriberStatic.Factory.REGISTER, EVENT_BUS); | ||
| } | ||
|
|
||
| public static void run() { | ||
| REGISTRARS.pop().accept(EVENT_BUS); | ||
| } | ||
| } | ||
| } | ||
| } |
165 changes: 0 additions & 165 deletions
165
eventbus-test-jar/src/main/java/net/minecraftforge/eventbus/testjar/benchmarks/Post.java
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86 changes: 0 additions & 86 deletions
86
eventbus-test-jar/src/main/java/net/minecraftforge/eventbus/testjar/benchmarks/Register.java
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46 changes: 46 additions & 0 deletions
46
...r/src/main/java/net/minecraftforge/eventbus/testjar/benchmarks/RegistrationBenchmark.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| /* | ||
| * Copyright (c) Forge Development LLC | ||
| * SPDX-License-Identifier: LGPL-2.1-only | ||
| */ | ||
|
|
||
| package net.minecraftforge.eventbus.testjar.benchmarks; | ||
|
|
||
| import net.minecraftforge.eventbus.api.IEventBus; | ||
|
|
||
| import java.util.Deque; | ||
| import java.util.function.Consumer; | ||
|
|
||
| public abstract class RegistrationBenchmark { | ||
| // This is the number of dynamic classes to make in the setup method. | ||
| // This number just needs to be high enough that we don't get a EmptyStackException | ||
| // It takes a lot of memory, but it prevents optimizations in the EventBus from | ||
| // invalidating out test results. Such optimizations like the duplicate prevention | ||
| // on normal register(Object) calls but not on lambda calls | ||
| protected static final int BATCH_COUNT = 100_000; | ||
|
|
||
| protected static void setupIteration(Deque<Consumer<IEventBus>> registrars, | ||
| ClassFactory<Consumer<IEventBus>> registrarFactory, | ||
| IEventBus eventBus) { | ||
| // Clear the Deque and EventBus | ||
| registrars.clear(); | ||
|
|
||
| try { | ||
| var mtd = eventBus.getClass().getDeclaredMethod("clearInternalData"); | ||
| mtd.setAccessible(true); | ||
| mtd.invoke(eventBus); | ||
| } catch (Exception e) { | ||
| sneak(e); | ||
| } | ||
|
|
||
| // Fill the Deque | ||
| while (registrars.size() < BATCH_COUNT) | ||
| registrars.push(registrarFactory.create()); | ||
|
|
||
| System.gc(); | ||
| } | ||
|
|
||
| @SuppressWarnings("unchecked") | ||
| private static <E extends Throwable> void sneak(Throwable e) throws E { | ||
| throw (E) e; | ||
| } | ||
| } |
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34 changes: 34 additions & 0 deletions
34
...st-jar/src/main/java/net/minecraftforge/eventbus/testjar/subscribers/SubscriberMixed.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| /* | ||
| * Copyright (c) Forge Development LLC | ||
| * SPDX-License-Identifier: LGPL-2.1-only | ||
| */ | ||
|
|
||
| package net.minecraftforge.eventbus.testjar.subscribers; | ||
|
|
||
| import net.minecraftforge.eventbus.api.IEventBus; | ||
|
|
||
| import java.util.function.Consumer; | ||
| import java.util.function.Supplier; | ||
|
|
||
| public class SubscriberMixed { | ||
| public static class Factory { | ||
| public static final Supplier<Consumer<IEventBus>> REGISTER = Factory::create; | ||
|
|
||
| private static Consumer<IEventBus> create() { | ||
| return new Consumer<>() { | ||
| private int idx = 0; | ||
|
|
||
| @Override | ||
| public void accept(IEventBus eventBus) { | ||
| var registrar = switch (idx++ % 3) { | ||
| case 0 -> SubscriberDynamic.Factory.REGISTER.create(); | ||
| case 1 -> SubscriberStatic.Factory.REGISTER.create(); | ||
| case 2 -> SubscriberLambda.Factory.REGISTER.create(); | ||
| default -> throw new AssertionError(); | ||
| }; | ||
| registrar.accept(eventBus); | ||
| } | ||
| }; | ||
| } | ||
| } | ||
| } |
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