--- /dev/null 2020-03-26 16:04:31.000000000 -0700 +++ new/test/micro/org/openjdk/bench/java/lang/invoke/LookupDefineClass.java 2020-03-26 16:04:30.000000000 -0700 @@ -0,0 +1,288 @@ +/* + * Copyright (c) 2019 Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package org.openjdk.bench.java.lang.invoke; + +import org.openjdk.jmh.annotations.*; +import org.openjdk.jmh.runner.Runner; +import org.openjdk.jmh.runner.RunnerException; +import org.openjdk.jmh.runner.options.Options; +import org.openjdk.jmh.runner.options.OptionsBuilder; + +import java.lang.invoke.MethodHandles; +import java.lang.reflect.Field; +import java.net.URL; +import java.net.URLClassLoader; +import java.util.concurrent.TimeUnit; + +import static java.lang.invoke.MethodHandles.Lookup.ClassOption.*; + +public class LookupDefineClass { + private static final byte[] X_BYTECODE = new byte[]{ + (byte)0xCA, (byte)0xFE, (byte)0xBA, (byte)0xBE, 0x00, 0x00, 0x00, 0x38, 0x00, 0x10, 0x0A, 0x00, + 0x03, 0x00, 0x0C, 0x07, 0x00, 0x0D, 0x07, 0x00, 0x0E, 0x07, 0x00, 0x0F, + 0x01, 0x00, 0x06, 0x3C, 0x69, 0x6E, 0x69, 0x74, 0x3E, 0x01, 0x00, 0x03, + 0x28, 0x29, 0x56, 0x01, 0x00, 0x04, 0x43, 0x6F, 0x64, 0x65, 0x01, 0x00, + 0x0F, 0x4C, 0x69, 0x6E, 0x65, 0x4E, 0x75, 0x6D, 0x62, 0x65, 0x72, 0x54, + 0x61, 0x62, 0x6C, 0x65, 0x01, 0x00, 0x03, 0x72, 0x75, 0x6E, 0x01, 0x00, + 0x0A, 0x53, 0x6F, 0x75, 0x72, 0x63, 0x65, 0x46, 0x69, 0x6C, 0x65, 0x01, + 0x00, 0x08, 0x46, 0x6F, 0x6F, 0x2E, 0x6A, 0x61, 0x76, 0x61, 0x0C, 0x00, + 0x05, 0x00, 0x06, 0x01, 0x00, 0x07, 0x66, 0x6F, 0x6F, 0x2F, 0x46, 0x6F, + 0x6F, 0x01, 0x00, 0x10, 0x6A, 0x61, 0x76, 0x61, 0x2F, 0x6C, 0x61, 0x6E, + 0x67, 0x2F, 0x4F, 0x62, 0x6A, 0x65, 0x63, 0x74, 0x01, 0x00, 0x12, 0x6A, + 0x61, 0x76, 0x61, 0x2F, 0x6C, 0x61, 0x6E, 0x67, 0x2F, 0x52, 0x75, 0x6E, + 0x6E, 0x61, 0x62, 0x6C, 0x65, 0x00, 0x21, 0x00, 0x02, 0x00, 0x03, 0x00, + 0x01, 0x00, 0x04, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00, 0x05, 0x00, + 0x06, 0x00, 0x01, 0x00, 0x07, 0x00, 0x00, 0x00, 0x1D, 0x00, 0x01, 0x00, + 0x01, 0x00, 0x00, 0x00, 0x05, 0x2A, (byte)0xB7, 0x00, 0x01, (byte)0xB1, 0x00, 0x00, + 0x00, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x06, 0x00, 0x01, 0x00, 0x00, + 0x00, 0x03, 0x00, 0x01, 0x00, 0x09, 0x00, 0x06, 0x00, 0x01, 0x00, 0x07, + 0x00, 0x00, 0x00, 0x19, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, + (byte)0xB1, 0x00, 0x00, 0x00, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x06, 0x00, + 0x01, 0x00, 0x00, 0x00, 0x04, 0x00, 0x01, 0x00, 0x0A, 0x00, 0x00, 0x00, + 0x02, 0x00, 0x0B + }; + + /** + * Our own crippled classloader, that can only load a simple class over and over again. + */ + public static class XLoader extends URLClassLoader { + public XLoader() { + super("X-Loader", new URL[0], ClassLoader.getSystemClassLoader()); + } + + @Override + protected Class findClass(final String name) throws ClassNotFoundException { + return defineClass(name, X_BYTECODE, 0, X_BYTECODE.length); + } + + public Class install(final String name, byte[] bytes) { + return defineClass(name, bytes, 0, bytes.length); + } + } + + public static class Loader extends URLClassLoader { + public Loader(String name) { + super(name, new URL[0], ClassLoader.getSystemClassLoader()); + } + + public Class install(final String name, byte[] bytes) { + return defineClass(name, bytes, 0, bytes.length); + } + } + + @State(Scope.Thread) + @Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) + @Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) + @Fork(3) + @BenchmarkMode(Mode.AverageTime) + @OutputTimeUnit(TimeUnit.NANOSECONDS) + public static class OneClassPerLoader { + ClassLoader loader; + @Benchmark + public Class load() throws ClassNotFoundException { + return Class.forName("foo.Foo", false, loader); + } + + public static void main(String[] args) throws RunnerException { + Options opt = new OptionsBuilder() + .include(LookupDefineClass.OneClassPerLoader.class.getSimpleName()) + // .addProfiler(ClassloaderProfiler.class) + // .addProfiler(CompilerProfiler.class) + .build(); + + new Runner(opt).run(); + } + + @Setup(Level.Invocation) + public void doSetup() { + loader = new XLoader(); + } + } + + private static final byte[] FOO_HOST_BYTES = new byte[]{ + (byte)0xCA, (byte)0xFE, (byte)0xBA, (byte)0xBE, 0x00, 0x00, 0x00, 0x33, 0x00, 0x12, 0x01, 0x00, + 0x11, 0x66, 0x6F, 0x6F, 0x2F, 0x41, 0x6E, 0x6F, 0x6E, 0x79, 0x6D, 0x6F, + 0x75, 0x73, 0x48, 0x6F, 0x73, 0x74, 0x07, 0x00, 0x01, 0x01, 0x00, 0x10, + 0x6A, 0x61, 0x76, 0x61, 0x2F, 0x6C, 0x61, 0x6E, 0x67, 0x2F, 0x4F, 0x62, + 0x6A, 0x65, 0x63, 0x74, 0x07, 0x00, 0x03, 0x01, 0x00, 0x06, 0x4C, 0x4F, + 0x4F, 0x4B, 0x55, 0x50, 0x01, 0x00, 0x27, 0x4C, 0x6A, 0x61, 0x76, 0x61, + 0x2F, 0x6C, 0x61, 0x6E, 0x67, 0x2F, 0x69, 0x6E, 0x76, 0x6F, 0x6B, 0x65, + 0x2F, 0x4D, 0x65, 0x74, 0x68, 0x6F, 0x64, 0x48, 0x61, 0x6E, 0x64, 0x6C, + 0x65, 0x73, 0x24, 0x4C, 0x6F, 0x6F, 0x6B, 0x75, 0x70, 0x3B, 0x01, 0x00, + 0x08, 0x3C, 0x63, 0x6C, 0x69, 0x6E, 0x69, 0x74, 0x3E, 0x01, 0x00, 0x03, + 0x28, 0x29, 0x56, 0x01, 0x00, 0x1E, 0x6A, 0x61, 0x76, 0x61, 0x2F, 0x6C, + 0x61, 0x6E, 0x67, 0x2F, 0x69, 0x6E, 0x76, 0x6F, 0x6B, 0x65, 0x2F, 0x4D, + 0x65, 0x74, 0x68, 0x6F, 0x64, 0x48, 0x61, 0x6E, 0x64, 0x6C, 0x65, 0x73, + 0x07, 0x00, 0x09, 0x01, 0x00, 0x06, 0x6C, 0x6F, 0x6F, 0x6B, 0x75, 0x70, + 0x01, 0x00, 0x29, 0x28, 0x29, 0x4C, 0x6A, 0x61, 0x76, 0x61, 0x2F, 0x6C, + 0x61, 0x6E, 0x67, 0x2F, 0x69, 0x6E, 0x76, 0x6F, 0x6B, 0x65, 0x2F, 0x4D, + 0x65, 0x74, 0x68, 0x6F, 0x64, 0x48, 0x61, 0x6E, 0x64, 0x6C, 0x65, 0x73, + 0x24, 0x4C, 0x6F, 0x6F, 0x6B, 0x75, 0x70, 0x3B, 0x0C, 0x00, 0x0B, 0x00, + 0x0C, 0x0A, 0x00, 0x0A, 0x00, 0x0D, 0x0C, 0x00, 0x05, 0x00, 0x06, 0x09, + 0x00, 0x02, 0x00, 0x0F, 0x01, 0x00, 0x04, 0x43, 0x6F, 0x64, 0x65, 0x06, + 0x01, 0x00, 0x02, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x19, 0x00, + 0x05, 0x00, 0x06, 0x00, 0x00, 0x00, 0x01, 0x00, 0x08, 0x00, 0x07, 0x00, + 0x08, 0x00, 0x01, 0x00, 0x11, 0x00, 0x00, 0x00, 0x13, 0x00, 0x01, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x07, (byte)0xB8, 0x00, 0x0E, (byte)0xB3, 0x00, 0x10, (byte)0xB1, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 + }; + + private static MethodHandles.Lookup defineHostClass(Loader loader, String name, byte[] bytes) { + try { + Class c = loader.install(name, bytes); + Field f = c.getDeclaredField("LOOKUP"); + return (MethodHandles.Lookup)f.get(null); + } catch (NoSuchFieldException|IllegalAccessException e) { + throw new InternalError(e); + } + } + + @State(Scope.Thread) + @Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) + @Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) + @Fork(3) + @BenchmarkMode(Mode.AverageTime) + @OutputTimeUnit(TimeUnit.NANOSECONDS) + public static class TwoClassPerLoader { + XLoader loader; + @Benchmark + public Class load() throws ClassNotFoundException { + return Class.forName("foo.Foo", false, loader); + } + + public static void main(String[] args) throws RunnerException { + Options opt = new OptionsBuilder() + .include(LookupDefineClass.TwoClassPerLoader.class.getSimpleName()) + // .addProfiler(ClassloaderProfiler.class) + // .addProfiler(CompilerProfiler.class) + .build(); + + new Runner(opt).run(); + } + + @Setup(Level.Invocation) + public void doSetup() { + loader = new XLoader(); + loader.install("foo.AnonymousHost", FOO_HOST_BYTES); + } + } + + + @State(Scope.Thread) + @Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) + @Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) + @Fork(3) + @BenchmarkMode(Mode.AverageTime) + @OutputTimeUnit(TimeUnit.NANOSECONDS) + public static class WeakClass { + private static final MethodHandles.Lookup HOST_LOOKUP = + defineHostClass(new Loader("weak-class-loader"), "foo.AnonymousHost", FOO_HOST_BYTES); + + @Benchmark + public Class load() throws ClassNotFoundException { + try { + return HOST_LOOKUP.defineHiddenClass(X_BYTECODE, false).lookupClass(); + } catch (IllegalAccessException e) { + throw new InternalError(e); + } + } + + public static void main(String[] args) throws RunnerException { + Options opt = new OptionsBuilder() + .include(LookupDefineClass.WeakClass.class.getSimpleName()) + // .addProfiler(ClassloaderProfiler.class) + // .addProfiler(CompilerProfiler.class) + .build(); + + new Runner(opt).run(); + } + } + + @State(Scope.Thread) + @Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) + @Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) + @Fork(3) + @BenchmarkMode(Mode.AverageTime) + @OutputTimeUnit(TimeUnit.NANOSECONDS) + public static class UnsafeAnonymousClass { + static final sun.misc.Unsafe unsafe = getUnsafe(); + + private static final MethodHandles.Lookup lookup = + defineHostClass(new Loader("anonymous-class-loader"),"foo.AnonymousHost", FOO_HOST_BYTES); + + @Benchmark + public Class load() throws ClassNotFoundException { + return unsafe.defineAnonymousClass(lookup.lookupClass(), X_BYTECODE, null); + } + + public static void main(String[] args) throws RunnerException { + Options opt = new OptionsBuilder() + .include(LookupDefineClass.UnsafeAnonymousClass.class.getSimpleName()) + // .addProfiler(ClassloaderProfiler.class) + // .addProfiler(CompilerProfiler.class) + .build(); + + new Runner(opt).run(); + } + } + + static sun.misc.Unsafe getUnsafe() { + try { + Field f = sun.misc.Unsafe.class.getDeclaredField("theUnsafe"); + f.setAccessible(true); + return (sun.misc.Unsafe)f.get(null); + } catch (ReflectiveOperationException e) { + throw new RuntimeException(e); + } + } + + @State(Scope.Thread) + @Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) + @Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) + @Fork(3) + @BenchmarkMode(Mode.AverageTime) + @OutputTimeUnit(TimeUnit.NANOSECONDS) + public static class HiddenClass { + private static final MethodHandles.Lookup HOST_LOOKUP = + defineHostClass(new Loader("hidden-class-loader"),"foo.AnonymousHost", FOO_HOST_BYTES); + + @Benchmark + public Class load() throws ClassNotFoundException { + try { + return HOST_LOOKUP.defineHiddenClass(X_BYTECODE, false, STRONG).lookupClass(); + } catch (IllegalAccessException e) { + throw new InternalError(e); + } + } + + public static void main(String[] args) throws RunnerException { + Options opt = new OptionsBuilder() + .include(LookupDefineClass.HiddenClass.class.getSimpleName()) + // .addProfiler(ClassloaderProfiler.class) + // .addProfiler(CompilerProfiler.class) + .build(); + + new Runner(opt).run(); + } + } +}