Mercurial > hg > graal-compiler
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/CompilationTask.java @ 23394:964f28c04d7b default tip
Don't fill the code cache with nmethods from CTW
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Fri, 05 Feb 2016 22:48:36 -0800 |
parents | 3609732616e9 |
children |
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/* * Copyright (c) 2012, 2016, 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 com.oracle.graal.hotspot; import static com.oracle.graal.compiler.GraalCompilerOptions.ExitVMOnBailout; import static com.oracle.graal.compiler.GraalCompilerOptions.ExitVMOnException; import static com.oracle.graal.compiler.GraalCompilerOptions.PrintAfterCompilation; import static com.oracle.graal.compiler.GraalCompilerOptions.PrintBailout; import static com.oracle.graal.compiler.GraalCompilerOptions.PrintCompilation; import static com.oracle.graal.compiler.GraalCompilerOptions.PrintFilter; import static com.oracle.graal.compiler.GraalCompilerOptions.PrintStackTraceOnException; import jdk.vm.ci.code.BailoutException; import jdk.vm.ci.code.CodeCacheProvider; import jdk.vm.ci.code.CompilationRequestResult; import jdk.vm.ci.hotspot.HotSpotCompilationRequest; import jdk.vm.ci.hotspot.HotSpotCompiledCode; import jdk.vm.ci.hotspot.HotSpotInstalledCode; import jdk.vm.ci.hotspot.HotSpotJVMCIRuntimeProvider; import jdk.vm.ci.hotspot.HotSpotNmethod; import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; import jdk.vm.ci.hotspot.HotSpotVMConfig; import jdk.vm.ci.hotspot.events.EmptyEventProvider; import jdk.vm.ci.hotspot.events.EventProvider; import jdk.vm.ci.hotspot.events.EventProvider.CompilationEvent; import jdk.vm.ci.hotspot.events.EventProvider.CompilerFailureEvent; import jdk.vm.ci.runtime.JVMCICompiler; import jdk.vm.ci.services.Services; import com.oracle.graal.code.CompilationResult; import com.oracle.graal.debug.Debug; import com.oracle.graal.debug.Debug.Scope; import com.oracle.graal.debug.DebugCloseable; import com.oracle.graal.debug.DebugDumpScope; import com.oracle.graal.debug.DebugMetric; import com.oracle.graal.debug.DebugTimer; import com.oracle.graal.debug.Management; import com.oracle.graal.debug.TTY; //JaCoCo Exclude public class CompilationTask { private static final DebugMetric BAILOUTS = Debug.metric("Bailouts"); private static final EventProvider eventProvider; static { EventProvider provider = Services.loadSingle(EventProvider.class, false); if (provider == null) { eventProvider = new EmptyEventProvider(); } else { eventProvider = provider; } } private final HotSpotJVMCIRuntimeProvider jvmciRuntime; private final HotSpotGraalCompiler compiler; private final HotSpotCompilationRequest request; private HotSpotInstalledCode installedCode; /** * Specifies whether the compilation result is installed as the * {@linkplain HotSpotNmethod#isDefault() default} nmethod for the compiled method. */ private final boolean installAsDefault; private final boolean useProfilingInfo; static class Lazy { /** * A {@link com.sun.management.ThreadMXBean} to be able to query some information about the * current compiler thread, e.g. total allocated bytes. */ static final com.sun.management.ThreadMXBean threadMXBean = (com.sun.management.ThreadMXBean) Management.getThreadMXBean(); } public CompilationTask(HotSpotJVMCIRuntimeProvider jvmciRuntime, HotSpotGraalCompiler compiler, HotSpotCompilationRequest request, boolean useProfilingInfo, boolean installAsDefault) { this.jvmciRuntime = jvmciRuntime; this.compiler = compiler; this.request = request; this.useProfilingInfo = useProfilingInfo; this.installAsDefault = installAsDefault; } public HotSpotResolvedJavaMethod getMethod() { return request.getMethod(); } /** * Returns the compilation id of this task. * * @return compile id */ public int getId() { return request.getId(); } public int getEntryBCI() { return request.getEntryBCI(); } public HotSpotInstalledCode getInstalledCode() { return installedCode; } /** * Time spent in compilation. */ private static final DebugTimer CompilationTime = Debug.timer("CompilationTime"); /** * Meters the {@linkplain CompilationResult#getBytecodeSize() bytecodes} compiled. */ private static final DebugMetric CompiledBytecodes = Debug.metric("CompiledBytecodes"); public static final DebugTimer CodeInstallationTime = Debug.timer("CodeInstallation"); @SuppressWarnings("try") public CompilationRequestResult runCompilation() { HotSpotVMConfig config = jvmciRuntime.getConfig(); final long threadId = Thread.currentThread().getId(); int entryBCI = getEntryBCI(); final boolean isOSR = entryBCI != JVMCICompiler.INVOCATION_ENTRY_BCI; HotSpotResolvedJavaMethod method = getMethod(); // Log a compilation event. CompilationEvent compilationEvent = eventProvider.newCompilationEvent(); // If there is already compiled code for this method on our level we simply return. // JVMCI compiles are always at the highest compile level, even in non-tiered mode so we // only need to check for that value. if (method.hasCodeAtLevel(entryBCI, config.compilationLevelFullOptimization)) { return null; } CompilationResult result = null; try (DebugCloseable a = CompilationTime.start()) { CompilationStatistics stats = CompilationStatistics.create(method, isOSR); final boolean printCompilation = PrintCompilation.getValue() && !TTY.isSuppressed(); final boolean printAfterCompilation = PrintAfterCompilation.getValue() && !TTY.isSuppressed(); if (printCompilation) { TTY.println(getMethodDescription() + "..."); } TTY.Filter filter = new TTY.Filter(PrintFilter.getValue(), method); final long start; final long allocatedBytesBefore; if (printAfterCompilation || printCompilation) { start = System.currentTimeMillis(); allocatedBytesBefore = printAfterCompilation || printCompilation ? Lazy.threadMXBean.getThreadAllocatedBytes(threadId) : 0L; } else { start = 0L; allocatedBytesBefore = 0L; } try (Scope s = Debug.scope("Compiling", new DebugDumpScope(String.valueOf(getId()), true))) { // Begin the compilation event. compilationEvent.begin(); result = compiler.compile(method, entryBCI, useProfilingInfo); } catch (Throwable e) { throw Debug.handle(e); } finally { // End the compilation event. compilationEvent.end(); filter.remove(); if (printAfterCompilation || printCompilation) { final long stop = System.currentTimeMillis(); final int targetCodeSize = result != null ? result.getTargetCodeSize() : -1; final long allocatedBytesAfter = Lazy.threadMXBean.getThreadAllocatedBytes(threadId); final long allocatedBytes = (allocatedBytesAfter - allocatedBytesBefore) / 1024; if (printAfterCompilation) { TTY.println(getMethodDescription() + String.format(" | %4dms %5dB %5dkB", stop - start, targetCodeSize, allocatedBytes)); } else if (printCompilation) { TTY.println(String.format("%-6d JVMCI %-70s %-45s %-50s | %4dms %5dB %5dkB", getId(), "", "", "", stop - start, targetCodeSize, allocatedBytes)); } } } if (result != null) { try (DebugCloseable b = CodeInstallationTime.start()) { installMethod(result); } } stats.finish(method, installedCode); if (result != null) { return CompilationRequestResult.success(result.getBytecodeSize() - method.getCodeSize()); } return null; } catch (BailoutException bailout) { BAILOUTS.increment(); if (ExitVMOnBailout.getValue()) { TTY.out.println(method.format("Bailout in %H.%n(%p)")); bailout.printStackTrace(TTY.out); System.exit(-1); } else if (PrintBailout.getValue()) { TTY.out.println(method.format("Bailout in %H.%n(%p)")); bailout.printStackTrace(TTY.out); } /* * Treat bailouts as retryable. */ return CompilationRequestResult.failure(bailout.getMessage(), true); } catch (Throwable t) { // Log a failure event. CompilerFailureEvent event = eventProvider.newCompilerFailureEvent(); if (event.shouldWrite()) { event.setCompileId(getId()); event.setMessage(t.getMessage()); event.commit(); } handleException(t); /* * Treat random exceptions from the compiler as indicating a problem compiling this * method. Report the result of toString instead of getMessage to ensure that the * exception type is included in the output in case there's no detail mesage. */ return CompilationRequestResult.failure(t.toString(), false); } finally { try { int compiledBytecodes = 0; int codeSize = 0; if (result != null) { compiledBytecodes = result.getBytecodeSize(); } if (installedCode != null) { codeSize = installedCode.getSize(); } CompiledBytecodes.add(compiledBytecodes); // Log a compilation event. if (compilationEvent.shouldWrite()) { compilationEvent.setMethod(method.format("%H.%n(%p)")); compilationEvent.setCompileId(getId()); compilationEvent.setCompileLevel(config.compilationLevelFullOptimization); compilationEvent.setSucceeded(result != null && installedCode != null); compilationEvent.setIsOsr(isOSR); compilationEvent.setCodeSize(codeSize); compilationEvent.setInlinedBytes(compiledBytecodes); compilationEvent.commit(); } } catch (Throwable t) { handleException(t); } } } protected void handleException(Throwable t) { if (PrintStackTraceOnException.getValue() || ExitVMOnException.getValue()) { try { t.printStackTrace(TTY.out); } catch (Throwable throwable) { // Don't let an exception here change the other control flow } } if (ExitVMOnException.getValue()) { System.exit(-1); } } private String getMethodDescription() { HotSpotResolvedJavaMethod method = getMethod(); return String.format("%-6d JVMCI %-70s %-45s %-50s %s", getId(), method.getDeclaringClass().getName(), method.getName(), method.getSignature().toMethodDescriptor(), getEntryBCI() == JVMCICompiler.INVOCATION_ENTRY_BCI ? "" : "(OSR@" + getEntryBCI() + ") "); } @SuppressWarnings("try") private void installMethod(final CompilationResult compResult) { final CodeCacheProvider codeCache = jvmciRuntime.getHostJVMCIBackend().getCodeCache(); installedCode = null; try (Scope s = Debug.scope("CodeInstall", new DebugDumpScope(String.valueOf(getId()), true), codeCache, getMethod())) { HotSpotCompiledCode compiledCode = HotSpotCompiledCodeBuilder.createCompiledCode(request.getMethod(), request, compResult); installedCode = (HotSpotInstalledCode) codeCache.installCode(request.getMethod(), compiledCode, null, request.getMethod().getSpeculationLog(), installAsDefault); } catch (Throwable e) { throw Debug.handle(e); } } @Override public String toString() { return "Compilation[id=" + getId() + ", " + getMethod().format("%H.%n(%p)") + (getEntryBCI() == JVMCICompiler.INVOCATION_ENTRY_BCI ? "" : "@" + getEntryBCI()) + "]"; } }