1 /*
2 * Copyright (c) 2015, 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 package jdk.jfr.event.runtime;
26
27 import static jdk.test.lib.Asserts.assertTrue;
28
29 import java.nio.file.Paths;
30 import java.time.Duration;
31
32 import jdk.jfr.Recording;
33 import jdk.jfr.consumer.RecordedEvent;
34 import jdk.test.lib.jfr.EventNames;
35 import jdk.test.lib.jfr.Events;
36
37 /*
38 * @test
39 * @bug 8058552
40 * @requires vm.gc == "G1" | vm.gc == null
41 * @key jfr
42 * @summary Test checks that flags of type size_t are being sent to the jfr
43 * @library /test/lib
44 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:-UseFastUnorderedTimeStamps -XX:+UseG1GC -XX:+UseTLAB -XX:MinTLABSize=3k -XX:OldSize=30m -XX:YoungPLABSize=3k -XX:MaxDirectMemorySize=5M jdk.jfr.event.runtime.TestSizeTFlags
45 */
46 public class TestSizeTFlags {
47 private static final String EVENT_NAME = EventNames.UnsignedLongFlag;
48 private static final int NUMBER_OF_FLAGS_TO_CHECK = 4;
49 private static final long MIN_TLAB_SIZE_FLAG_VALUE = 3*1024L;
50 private static final long OLD_SIZE_FLAG_VALUE = 30*1024*1024L;
51 private static final long YOUNG_PLAB_SIZE_FLAG_VALUE = 3*1024L;
52 private static final long MAX_DIRECT_MEMORY_SIZE_FLAG_VALUE = 5*1024*1024L;
53
54 // Test run java with some of the flags of type size_t.
55 // Goals are
56 // - to check that flags are reported to the jfr;
57 // - to make sure values are as expected.
58 public static void main(String[] args) throws Exception {
59 final boolean[] flagsFoundWithExpectedValue = new boolean[NUMBER_OF_FLAGS_TO_CHECK];
60 Recording recording = null;
61 try {
62 recording = new Recording();
63 recording.enable(EVENT_NAME).withThreshold(Duration.ofMillis(0));
64 recording.start();
65 recording.stop();
66
67 for (final RecordedEvent event : Events.fromRecording(recording)) {
68 final String recordedFlagName = Events.assertField(event, "name").getValue();
69 final long value = Events.assertField(event, "value").getValue();
70 switch (recordedFlagName) {
71 case "MinTLABSize": {
72 flagsFoundWithExpectedValue[0] = MIN_TLAB_SIZE_FLAG_VALUE == value;
73 continue;
74 }
75 case "OldSize": {
76 flagsFoundWithExpectedValue[1] = OLD_SIZE_FLAG_VALUE == value;
77 continue;
78 }
79 case "YoungPLABSize": {
80 flagsFoundWithExpectedValue[2] = YOUNG_PLAB_SIZE_FLAG_VALUE == value;
81 continue;
82 }
83 case "MaxDirectMemorySize": {
84 flagsFoundWithExpectedValue[3] = MAX_DIRECT_MEMORY_SIZE_FLAG_VALUE == value;
85 continue;
86 }
87 default: {
88 continue;
89 }
90 }
91 }
92
93 for (int i = 0; i < flagsFoundWithExpectedValue.length; ++i) {
94 assertTrue(flagsFoundWithExpectedValue[i], "Flag not found or value error!");
95 }
96
97 } catch (Throwable e) {
98 if (recording != null) {
99 recording.dump(Paths.get("failed.jfr"));
100 }
101 throw e;
102 } finally {
103 if (recording != null) {
104 recording.close();
105 }
106 }
107 }
108 }