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comparison jvmci/jdk.vm.ci.hotspot.jfr/src/jdk/vm/ci/hotspot/jfr/events/JFREventProvider.java @ 23679:b5557b757040

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fix HotSpotVMConfig startup performance (JDK-8159167)
author Doug Simon <doug.simon@oracle.com>
date Wed, 15 Jun 2016 00:00:41 +0200
parents 1d4ce2d19e52
children 5cf445d2acf6
comparison
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23678:e86a0b0ba969 23679:b5557b757040
20 * or visit www.oracle.com if you need additional information or have any 20 * or visit www.oracle.com if you need additional information or have any
21 * questions. 21 * questions.
22 */ 22 */
23 package jdk.vm.ci.hotspot.jfr.events; 23 package jdk.vm.ci.hotspot.jfr.events;
24 24
25 import static jdk.vm.ci.hotspot.HotSpotVMConfig.config;
26
27 import java.net.URISyntaxException; 25 import java.net.URISyntaxException;
28 26
27 import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime;
28 import jdk.vm.ci.hotspot.HotSpotVMConfigAccess;
29 import jdk.vm.ci.hotspot.services.EventProvider; 29 import jdk.vm.ci.hotspot.services.EventProvider;
30 30
31 /** 31 /**
32 * A JFR implementation for {@link EventProvider}. This implementation is used when Flight Recorder 32 * A JFR implementation for {@link EventProvider}. This implementation is used when Flight Recorder
33 * is turned on. 33 * is turned on.
44 * Need to store the producer in a field so that it doesn't disappear. 44 * Need to store the producer in a field so that it doesn't disappear.
45 */ 45 */
46 @SuppressWarnings("unused") private final com.oracle.jrockit.jfr.Producer producer; 46 @SuppressWarnings("unused") private final com.oracle.jrockit.jfr.Producer producer;
47 47
48 public JFREventProvider() { 48 public JFREventProvider() {
49 enabled = config().flightRecorder; 49 HotSpotVMConfigAccess config = new HotSpotVMConfigAccess(HotSpotJVMCIRuntime.runtime().getConfigStore());
50 enabled = config.getFlag("FightRecorder", Boolean.class, false);
50 com.oracle.jrockit.jfr.Producer p = null; 51 com.oracle.jrockit.jfr.Producer p = null;
51 if (enabled) { 52 if (enabled) {
52 try { 53 try {
53 /* 54 /*
54 * The "HotSpot JVM" producer is a native producer and we cannot use it. So we 55 * The "HotSpot JVM" producer is a native producer and we cannot use it. So we