| /* |
| * Copyright (c) 2007, 2018, 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 |
| * @key stress gc |
| * |
| * @summary converted from VM Testbase gc/vector/SimpleGC. |
| * VM Testbase keywords: [gc, stress, stressopt, nonconcurrent, monitoring] |
| * |
| * @library /vmTestbase |
| * /test/lib |
| * @run driver jdk.test.lib.FileInstaller . . |
| * @run main/othervm gc.vector.SimpleGC.SimpleGC -ms high |
| */ |
| |
| package gc.vector.SimpleGC; |
| |
| import nsk.share.gc.GC; |
| import nsk.share.gc.GCTestBase; |
| import nsk.share.gc.gp.GarbageProducer; |
| import nsk.share.gc.gp.GarbageProducerAware; |
| import nsk.share.gc.gp.GarbageUtils; |
| import nsk.share.gc.gp.MemoryStrategy; |
| import nsk.share.gc.gp.MemoryStrategyAware; |
| import nsk.share.runner.RunParams; |
| import nsk.share.test.Stresser; |
| |
| /** |
| * Test that fills out a certain amount of memory with objects of a given type. |
| * The test accepts MemoryStrategy, type of objects and stress options |
| * as command line args. |
| */ |
| public class SimpleGC extends GCTestBase implements GarbageProducerAware, MemoryStrategyAware { |
| |
| private GarbageProducer garbageProducer; |
| private MemoryStrategy memoryStrategy; |
| |
| /** |
| * Garbage link. |
| * The field is static to prevent possible compiler optimizations. |
| */ |
| public static Object[] array; |
| |
| @Override |
| public void run() { |
| |
| long memoryAmount = runParams.getTestMemory(); |
| long size = GarbageUtils.getArraySize(memoryAmount, memoryStrategy); |
| int length = GarbageUtils.getArrayCount(memoryAmount, memoryStrategy); |
| Object[] garbage = new Object[length]; |
| array = garbage; |
| log.info("Memory to fill out: " + memoryAmount); |
| log.info("Array lenght: " + garbage.length); |
| log.info("Object size: " + size); |
| log.info("Garbage producer: " + garbageProducer.getClass().getCanonicalName()); |
| log.info("Memory Strategy: " + memoryStrategy); |
| Stresser stresser = new Stresser(runParams.getStressOptions()); |
| stresser.start(10 * garbage.length); |
| |
| int iteration = 0; |
| try { |
| while (stresser.iteration()) { |
| for (int i = 0; i < garbage.length && stresser.continueExecution(); ++i) { |
| garbage[i] = garbageProducer.create(size); |
| } |
| for (int i = 0; i < garbage.length; ++i) { |
| garbage[i] = null; |
| } |
| iteration++; |
| if (iteration % 1000 == 0) { |
| log.info(" iteration # " + iteration); |
| } |
| } |
| } catch (OutOfMemoryError oom) { |
| // normally that should never be thrown |
| log.info("OutOfMemory after " + iteration + " iterations"); |
| throw oom; |
| } finally { |
| stresser.finish(); |
| } |
| log.info("Success. Total iterations: " + iteration); |
| } |
| |
| @Override |
| public final void setGarbageProducer(GarbageProducer garbageProducer) { |
| this.garbageProducer = garbageProducer; |
| } |
| |
| @Override |
| public final void setMemoryStrategy(MemoryStrategy memoryStrategy) { |
| this.memoryStrategy = memoryStrategy; |
| } |
| |
| public static void main(String[] args) { |
| RunParams.getInstance().setRunMemDiagThread(true); |
| GC.runTest(new SimpleGC(), args); |
| } |
| } |