| /* |
| * Copyright (c) 2014, 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. |
| * |
| */ |
| |
| /* |
| * @test OverloadCompileQueueTest |
| * @summary stressing code cache by overloading compile queues |
| * @library /test/lib / |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * |
| * @ignore 8071905 |
| * @build sun.hotspot.WhiteBox |
| * @run driver ClassFileInstaller sun.hotspot.WhiteBox |
| * sun.hotspot.WhiteBox$WhiteBoxPermission |
| * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI |
| * -XX:CompileCommand=dontinline,compiler.codecache.stress.Helper$TestCase::method |
| * -XX:-SegmentedCodeCache |
| * compiler.codecache.stress.OverloadCompileQueueTest |
| * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI |
| * -XX:CompileCommand=dontinline,compiler.codecache.stress.Helper$TestCase::method |
| * -XX:+SegmentedCodeCache |
| * compiler.codecache.stress.OverloadCompileQueueTest |
| */ |
| |
| package compiler.codecache.stress; |
| |
| import jdk.test.lib.Platform; |
| |
| import java.lang.reflect.Method; |
| import java.util.stream.IntStream; |
| |
| public class OverloadCompileQueueTest implements Runnable { |
| private static final int MAX_SLEEP = 10000; |
| private static final String METHOD_TO_ENQUEUE = "method"; |
| private static final int LEVEL_SIMPLE = 1; |
| private static final int LEVEL_FULL_OPTIMIZATION = 4; |
| private static final boolean TIERED_COMPILATION |
| = Helper.WHITE_BOX.getBooleanVMFlag("TieredCompilation"); |
| private static final int TIERED_STOP_AT_LEVEL |
| = Helper.WHITE_BOX.getIntxVMFlag("TieredStopAtLevel").intValue(); |
| private static final int[] AVAILABLE_LEVELS; |
| static { |
| if (TIERED_COMPILATION) { |
| AVAILABLE_LEVELS = IntStream |
| .rangeClosed(LEVEL_SIMPLE, TIERED_STOP_AT_LEVEL) |
| .toArray(); |
| } else if (Platform.isServer()) { |
| AVAILABLE_LEVELS = new int[] { LEVEL_FULL_OPTIMIZATION }; |
| } else if (Platform.isClient() || Platform.isMinimal()) { |
| AVAILABLE_LEVELS = new int[] { LEVEL_SIMPLE }; |
| } else { |
| throw new Error("TESTBUG: unknown VM: " + Platform.vmName); |
| } |
| } |
| |
| public static void main(String[] args) { |
| if (Platform.isInt()) { |
| throw new Error("TESTBUG: test can not be run in interpreter"); |
| } |
| new CodeCacheStressRunner(new OverloadCompileQueueTest()).runTest(); |
| } |
| |
| public OverloadCompileQueueTest() { |
| Helper.startInfiniteLoopThread(this::lockUnlock, 100L); |
| } |
| |
| @Override |
| public void run() { |
| Helper.TestCase obj = Helper.TestCase.get(); |
| Class clazz = obj.getClass(); |
| Method mEnqueue; |
| try { |
| mEnqueue = clazz.getMethod(METHOD_TO_ENQUEUE); |
| } catch (NoSuchMethodException | SecurityException e) { |
| throw new Error(String.format( |
| "TESTBUG: cannot get method '%s' of class %s", |
| METHOD_TO_ENQUEUE, clazz.getName()), e); |
| } |
| for (int compLevel : AVAILABLE_LEVELS) { |
| Helper.WHITE_BOX.enqueueMethodForCompilation(mEnqueue, compLevel); |
| } |
| } |
| |
| private void lockUnlock() { |
| try { |
| int sleep = Helper.RNG.nextInt(MAX_SLEEP); |
| Helper.WHITE_BOX.lockCompilation(); |
| Thread.sleep(sleep); |
| } catch (InterruptedException e) { |
| throw new Error("TESTBUG: lockUnlocker thread was unexpectedly interrupted", e); |
| } finally { |
| Helper.WHITE_BOX.unlockCompilation(); |
| } |
| } |
| |
| } |