| /* |
| * Copyright (c) 2011, 2015, 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.graalvm.compiler.hotspot.test; |
| |
| import static org.graalvm.compiler.debug.internal.MemUseTrackerImpl.getCurrentThreadAllocatedBytes; |
| |
| import org.graalvm.compiler.api.test.Graal; |
| import org.graalvm.compiler.core.test.AllocSpy; |
| import org.graalvm.compiler.debug.Debug; |
| import org.graalvm.compiler.debug.DebugEnvironment; |
| import org.graalvm.compiler.debug.internal.DebugScope; |
| import org.graalvm.compiler.hotspot.CompilationTask; |
| import org.graalvm.compiler.hotspot.CompileTheWorld; |
| import org.graalvm.compiler.hotspot.CompileTheWorldOptions; |
| import org.graalvm.compiler.hotspot.HotSpotGraalCompiler; |
| import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions; |
| |
| import jdk.vm.ci.hotspot.HotSpotCompilationRequest; |
| import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime; |
| import jdk.vm.ci.hotspot.HotSpotJVMCIRuntimeProvider; |
| import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; |
| import jdk.vm.ci.runtime.JVMCICompiler; |
| |
| /** |
| * Used to benchmark memory usage during Graal compilation. |
| * |
| * To benchmark: |
| * |
| * <pre> |
| * mx vm -XX:-UseJVMCIClassLoader -cp @org.graalvm.compiler.hotspot.test org.graalvm.compiler.hotspot.test.MemoryUsageBenchmark |
| * </pre> |
| * |
| * Memory analysis for a {@link CompileTheWorld} execution can also be performed. For example: |
| * |
| * <pre> |
| * mx --vm server vm -XX:-UseJVMCIClassLoader -Dgraal.CompileTheWorldClasspath=$HOME/SPECjvm2008/SPECjvm2008.jar -cp @org.graalvm.compiler.hotspot.test org.graalvm.compiler.hotspot.test.MemoryUsageBenchmark |
| * </pre> |
| */ |
| public class MemoryUsageBenchmark extends HotSpotGraalCompilerTest { |
| |
| public static int simple(int a, int b) { |
| return a + b; |
| } |
| |
| public static synchronized int complex(CharSequence cs) { |
| if (cs instanceof String) { |
| return cs.hashCode(); |
| } |
| |
| if (cs instanceof StringBuilder) { |
| int[] hash = {0}; |
| cs.chars().forEach(c -> hash[0] += c); |
| return hash[0]; |
| } |
| |
| int res = 0; |
| |
| // Exercise lock elimination |
| synchronized (cs) { |
| res = cs.length(); |
| } |
| synchronized (cs) { |
| res = cs.hashCode() ^ 31; |
| } |
| |
| for (int i = 0; i < cs.length(); i++) { |
| res *= cs.charAt(i); |
| } |
| |
| // A fixed length loop with some canonicalizable arithmetics will |
| // activate loop unrolling and more canonicalization |
| int sum = 0; |
| for (int i = 0; i < 5; i++) { |
| sum += i * 2; |
| } |
| res += sum; |
| |
| // Activates escape-analysis |
| res += new String("asdf").length(); |
| |
| return res; |
| } |
| |
| static class MemoryUsageCloseable implements AutoCloseable { |
| |
| private final long start; |
| private final String name; |
| |
| MemoryUsageCloseable(String name) { |
| this.name = name; |
| this.start = getCurrentThreadAllocatedBytes(); |
| } |
| |
| @Override |
| public void close() { |
| long end = getCurrentThreadAllocatedBytes(); |
| long allocated = end - start; |
| System.out.println(name + ": " + allocated); |
| } |
| } |
| |
| public static void main(String[] args) { |
| // Ensure a Graal runtime is initialized prior to Debug being initialized as the former |
| // may include processing command line options used by the latter. |
| Graal.getRuntime(); |
| |
| // Ensure a debug configuration for this thread is initialized |
| if (Debug.isEnabled() && DebugScope.getConfig() == null) { |
| DebugEnvironment.initialize(System.out); |
| } |
| new MemoryUsageBenchmark().run(); |
| } |
| |
| @SuppressWarnings("try") |
| private void doCompilation(String methodName, String label) { |
| HotSpotResolvedJavaMethod method = (HotSpotResolvedJavaMethod) getResolvedJavaMethod(methodName); |
| |
| // invalidate any existing compiled code |
| method.reprofile(); |
| |
| long jvmciEnv = 0L; |
| |
| try (MemoryUsageCloseable c = label == null ? null : new MemoryUsageCloseable(label)) { |
| HotSpotJVMCIRuntimeProvider runtime = HotSpotJVMCIRuntime.runtime(); |
| int entryBCI = JVMCICompiler.INVOCATION_ENTRY_BCI; |
| HotSpotCompilationRequest request = new HotSpotCompilationRequest(method, entryBCI, jvmciEnv); |
| CompilationTask task = new CompilationTask(runtime, (HotSpotGraalCompiler) runtime.getCompiler(), request, true, false); |
| task.runCompilation(); |
| } |
| } |
| |
| @SuppressWarnings("try") |
| private void allocSpyCompilation(String methodName) { |
| if (AllocSpy.isEnabled()) { |
| HotSpotResolvedJavaMethod method = (HotSpotResolvedJavaMethod) getResolvedJavaMethod(methodName); |
| |
| // invalidate any existing compiled code |
| method.reprofile(); |
| |
| long jvmciEnv = 0L; |
| try (AllocSpy as = AllocSpy.open(methodName)) { |
| HotSpotJVMCIRuntimeProvider runtime = HotSpotJVMCIRuntime.runtime(); |
| HotSpotCompilationRequest request = new HotSpotCompilationRequest(method, JVMCICompiler.INVOCATION_ENTRY_BCI, jvmciEnv); |
| CompilationTask task = new CompilationTask(runtime, (HotSpotGraalCompiler) runtime.getCompiler(), request, true, false); |
| task.runCompilation(); |
| } |
| } |
| } |
| |
| private static final boolean verbose = Boolean.getBoolean("verbose"); |
| |
| private void compileAndTime(String methodName) { |
| |
| // Parse in eager mode to resolve methods/fields/classes |
| parseEager(methodName, AllowAssumptions.YES); |
| |
| // Warm up and initialize compiler phases used by this compilation |
| for (int i = 0; i < 10; i++) { |
| doCompilation(methodName, verbose ? methodName + "[warmup-" + i + "]" : null); |
| } |
| |
| doCompilation(methodName, methodName); |
| } |
| |
| public void run() { |
| compileAndTime("simple"); |
| compileAndTime("complex"); |
| if (CompileTheWorldOptions.CompileTheWorldClasspath.getValue() != CompileTheWorld.SUN_BOOT_CLASS_PATH) { |
| HotSpotJVMCIRuntimeProvider runtime = HotSpotJVMCIRuntime.runtime(); |
| CompileTheWorld ctw = new CompileTheWorld(runtime, (HotSpotGraalCompiler) runtime.getCompiler()); |
| try { |
| ctw.compile(); |
| } catch (Throwable e) { |
| e.printStackTrace(); |
| } |
| } |
| allocSpyCompilation("simple"); |
| allocSpyCompilation("complex"); |
| } |
| } |