test/jdk/jdk/jfr/event/gc/heapsummary/TestHeapSummaryCommittedSize.java
author goetz
Fri, 20 Jul 2018 09:46:57 +0200
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parent 50113 caf115bb98ad
permissions -rw-r--r--
8207830: [aix] disable jfr in build and tests Reviewed-by: kvn, erikj
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/*
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 * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package jdk.jfr.event.gc.heapsummary;
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import java.time.Duration;
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import jdk.jfr.Recording;
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import jdk.jfr.consumer.RecordedEvent;
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import jdk.test.lib.Asserts;
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import jdk.test.lib.jfr.EventNames;
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import jdk.test.lib.jfr.EventVerifier;
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import jdk.test.lib.jfr.Events;
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import jdk.test.lib.jfr.GCHelper;
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import sun.hotspot.WhiteBox;
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/**
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 * @test
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 * @key jfr
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 * @requires vm.hasJFR
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 * @requires vm.gc == "Parallel" | vm.gc == null
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 * @library /test/lib /test/jdk
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 * @build sun.hotspot.WhiteBox
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 * @run main ClassFileInstaller sun.hotspot.WhiteBox
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 * @run main/othervm -XX:+UnlockExperimentalVMOptions
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                     -XX:-UseFastUnorderedTimeStamps -Xmx16m -XX:+UseParallelGC
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                     -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
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                     jdk.jfr.event.gc.heapsummary.TestHeapSummaryCommittedSize
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 */
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public class TestHeapSummaryCommittedSize {
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    private final static String EVENT_NAME = EventNames.GCHeapSummary;
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    public static void main(String[] args) throws Exception {
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        Recording recording = new Recording();
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        recording.enable(EVENT_NAME).withThreshold(Duration.ofMillis(0));
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        recording.start();
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        System.gc();
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        recording.stop();
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        boolean isAnyFound = false;
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        for (RecordedEvent event : Events.fromRecording(recording)) {
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            System.out.println("Event: " + event);
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            if (!Events.isEventType(event, EVENT_NAME)) {
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                continue;
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            }
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            isAnyFound = true;
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            CommittedHeapSizeVerifier verifier = new CommittedHeapSizeVerifier(event);
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            verifier.verify();
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        }
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        Asserts.assertTrue(isAnyFound, "No matching event");
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    }
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}
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class CommittedHeapSizeVerifier extends EventVerifier {
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    private final static long  MAX_UNALIGNED_COMMITTED_SIZE  = 16 * 1024 * 1024;
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    private final long  MAX_ALIGNED_COMMITTED_SIZE;
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    public CommittedHeapSizeVerifier(RecordedEvent event) {
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        super(event);
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        WhiteBox wb = WhiteBox.getWhiteBox();
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        long heapAlignment = wb.getHeapAlignment();
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        MAX_ALIGNED_COMMITTED_SIZE = GCHelper.alignUp(
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                MAX_UNALIGNED_COMMITTED_SIZE,heapAlignment);
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    }
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    public void verify() throws Exception {
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        Events.assertField(event, "heapSpace.committedSize").atLeast(0L).atMost(MAX_ALIGNED_COMMITTED_SIZE);
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    }
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}