test/jdk/jdk/jfr/event/compiler/TestCodeCacheConfig.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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package jdk.jfr.event.compiler;

import java.util.List;

import jdk.jfr.Recording;
import jdk.jfr.consumer.RecordedEvent;
import jdk.test.lib.Asserts;
import jdk.test.lib.jfr.EventNames;
import jdk.test.lib.jfr.Events;
import sun.hotspot.WhiteBox;

/*
 * @test TestCodeCacheConfig
 * @key jfr
 * @library /test/lib
 * @build sun.hotspot.WhiteBox
 * @run main ClassFileInstaller sun.hotspot.WhiteBox
 *     sun.hotspot.WhiteBox$WhiteBoxPermission
 * @run main/othervm -Xbootclasspath/a:.
 *     -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
 *     -XX:+SegmentedCodeCache jdk.jfr.event.compiler.TestCodeCacheConfig
 * @run main/othervm -Xbootclasspath/a:.
 *     -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
 *     -XX:-SegmentedCodeCache jdk.jfr.event.compiler.TestCodeCacheConfig
 * @summary check "Code Cache Configuration" jfr event
 */
public class TestCodeCacheConfig {
    private final static String EVENT_NAME = EventNames.CodeCacheConfiguration;

    private static final long CodeCacheExpectedSize = WhiteBox.getWhiteBox().getUintxVMFlag("ReservedCodeCacheSize");

    public static void main(String[] args) throws Exception {
        Recording recording = new Recording();
        recording.enable(EVENT_NAME);
        recording.start();
        recording.stop();

        List<RecordedEvent> events = Events.fromRecording(recording);
        Events.hasEvents(events);
        RecordedEvent event = events.get(0);
        long initialSize = (long) event.getValue("initialSize");
        long reservedSize = (long) event.getValue("reservedSize");
        long nonNMethodSize = (long) event.getValue("nonNMethodSize");
        long profiledSize = (long) event.getValue("profiledSize");
        long nonProfiledSize = (long) event.getValue("nonProfiledSize");
        long expansionSize = (long) event.getValue("expansionSize");
        long minBlockLength = (long) event.getValue("minBlockLength");
        long startAddress = (long) event.getValue("startAddress");
        long reservedTopAddress = (long) event.getValue("reservedTopAddress");

        Asserts.assertGT(initialSize, 1024L,
            "initialSize less than 1024 byte, got " + initialSize);

        Asserts.assertEQ(reservedSize, CodeCacheExpectedSize,
            String.format("Unexpected reservedSize value. Expected %d but " + "got %d", CodeCacheExpectedSize, reservedSize));

        Asserts.assertLTE(nonNMethodSize, CodeCacheExpectedSize,
            String.format("Unexpected nonNMethodSize value. Expected <= %d but " + "got %d", CodeCacheExpectedSize, nonNMethodSize));

        Asserts.assertLTE(profiledSize, CodeCacheExpectedSize,
            String.format("Unexpected profiledSize value. Expected <= %d but " + "got %d", CodeCacheExpectedSize, profiledSize));

        Asserts.assertLTE(nonProfiledSize, CodeCacheExpectedSize,
            String.format("Unexpected nonProfiledSize value. Expected <= %d but " + "got %d", CodeCacheExpectedSize, nonProfiledSize));

        Asserts.assertGTE(expansionSize, 1024L,
            "expansionSize less than 1024 " + "bytes, got " + expansionSize);

        Asserts.assertGTE(minBlockLength, 1L,
            "minBlockLength less than 1 byte, got " + minBlockLength);

        Asserts.assertNE(startAddress, 0L,
            "startAddress null");

        Asserts.assertNE(reservedTopAddress, 0L,
            "codeCacheReservedTopAddr null");
    }
}