1 /* 2 * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates. 3 * 4 * This code is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License version 2 only, as 6 * published by the Free Software Foundation. 7 * 8 * This code is distributed in the hope that it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 11 * version 2 for more details (a copy is included in the LICENSE file that 12 * accompanied this code). 13 * 14 * You should have received a copy of the GNU General Public License version 15 * 2 along with this work; if not, write to the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 17 * 18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 19 * or visit www.oracle.com if you need additional information or have any 20 * questions. 21 * 22 */ 23 24 /* 25 * @test LotsOfCycles 26 * 27 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -Dtarget=10000 LotsOfCycles 28 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=passive -Dtarget=10000 LotsOfCycles 29 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=adaptive -Dtarget=10000 LotsOfCycles 30 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=static -Dtarget=10000 LotsOfCycles 31 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=compact -Dtarget=1000 LotsOfCycles 32 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=aggressive -Dtarget=1000 LotsOfCycles 33 * 34 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=aggressive -Dtarget=1000 -XX:+ShenandoahOOMDuringEvacALot LotsOfCycles 35 * @run main/othervm/timeout=480 -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions -Xmx16m -XX:ShenandoahGCHeuristics=aggressive -Dtarget=1000 -XX:+ShenandoahAllocFailureALot LotsOfCycles 36 */ 37 38 public class LotsOfCycles { 39 40 static final long TARGET_MB = Long.getLong("target", 10_000); // 10 Gb allocation, around 1K cycles to handle 41 static final long STRIDE = 100_000; 42 43 static volatile Object sink; 44 45 public static void main(String[] args) throws Exception { 46 long count = TARGET_MB * 1024 * 1024 / 16; 47 for (long c = 0; c < count; c += STRIDE) { 48 for (long s = 0; s < STRIDE; s++) { 49 sink = new Object(); 50 } 51 Thread.sleep(1); 52 } 53 } 54 55 }