1 /* 2 * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.jfr.event.gc.heapsummary; 27 28 import java.time.Duration; 29 30 import jdk.jfr.Recording; 31 import jdk.jfr.consumer.RecordedEvent; 32 import jdk.test.lib.Asserts; 33 import jdk.test.lib.jfr.EventNames; 34 import jdk.test.lib.jfr.EventVerifier; 35 import jdk.test.lib.jfr.Events; 36 import jdk.test.lib.jfr.GCHelper; 37 import sun.hotspot.WhiteBox; 38 39 /** 40 * @test 41 * @key jfr 42 * 43 * 44 * @library /lib / 45 * @build sun.hotspot.WhiteBox 46 * @run main ClassFileInstaller sun.hotspot.WhiteBox 47 * @run main/othervm -XX:+UnlockExperimentalVMOptions 48 -XX:-UseFastUnorderedTimeStamps -Xmx16m -XX:+UseParallelGC 49 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI 50 jdk.jfr.event.gc.heapsummary.TestHeapSummaryCommittedSize 51 */ 52 public class TestHeapSummaryCommittedSize { 53 private final static String EVENT_NAME = EventNames.GCHeapSummary; 54 55 public static void main(String[] args) throws Exception { 56 Recording recording = new Recording(); 57 recording.enable(EVENT_NAME).withThreshold(Duration.ofMillis(0)); 58 59 recording.start(); 60 System.gc(); 61 recording.stop(); 62 63 boolean isAnyFound = false; 64 for (RecordedEvent event : Events.fromRecording(recording)) { 65 System.out.println("Event: " + event); 66 if (!Events.isEventType(event, EVENT_NAME)) { 67 continue; 68 } 69 isAnyFound = true; 70 CommittedHeapSizeVerifier verifier = new CommittedHeapSizeVerifier(event); 71 verifier.verify(); 72 } 73 Asserts.assertTrue(isAnyFound, "No matching event"); 74 } 75 } 76 77 class CommittedHeapSizeVerifier extends EventVerifier { 78 private final static long MAX_UNALIGNED_COMMITTED_SIZE = 16 * 1024 * 1024; 79 private final long MAX_ALIGNED_COMMITTED_SIZE; 80 81 public CommittedHeapSizeVerifier(RecordedEvent event) { 82 super(event); 83 WhiteBox wb = WhiteBox.getWhiteBox(); 84 long heapAlignment = wb.getHeapAlignment(); 85 MAX_ALIGNED_COMMITTED_SIZE = GCHelper.alignUp( 86 MAX_UNALIGNED_COMMITTED_SIZE,heapAlignment); 87 } 88 89 public void verify() throws Exception { 90 Events.assertField(event, "heapSpace.committedSize").atLeast(0L).atMost(MAX_ALIGNED_COMMITTED_SIZE); 91 } 92 }