graal-compiler: test/gc/7072527/TestFullGCCount.java annotate

annotate test/gc/7072527/TestFullGCCount.java @ 10176:bfe3be9ebd6c

7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line Reviewed-by: mgerdin

author	kevinw
date	Thu, 18 Apr 2013 17:02:20 +0100
parents	41e6ee74f879
children

rev	line source
3827 41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	1 /*
10176 bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
3827 41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	4 *
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	7 * published by the Free Software Foundation.
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	8 *
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	13 * accompanied this code).
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	14 *
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	18 *
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	20 * or visit www.oracle.com if you need additional information or have any
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	21 * questions.
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	22 */
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	23
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	24 /*
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	25 * @test TestFullGCount.java
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	26 * @bug 7072527
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	27 * @summary CMS: JMM GC counters overcount in some cases
10176 bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	28 * @run main/othervm -XX:+PrintGC TestFullGCCount
3827 41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	29 */
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	30 import java.util.*;
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	31 import java.lang.management.*;
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	32
10176 bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	33 /*
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	34 * Originally for a specific failure in CMS, this test now monitors all
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	35 * collectors for double-counting of collections.
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	36 */
3827 41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	37 public class TestFullGCCount {
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	38
10176 bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	39 static List<GarbageCollectorMXBean> collectors = ManagementFactory.getGarbageCollectorMXBeans();
3827 41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	40
10176 bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	41 public static void main(String[] args) {
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	42 int iterations = 20;
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	43 boolean failed = false;
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	44 String errorMessage = "";
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	45 HashMap<String, List> counts = new HashMap<String, List>();
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	46
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	47 // Prime the collection of count lists for all collectors.
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	48 for (int i = 0; i < collectors.size(); i++) {
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	49 GarbageCollectorMXBean collector = collectors.get(i);
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	50 counts.put(collector.getName(), new ArrayList<Long>(iterations));
3827 41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	51 }
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	52
10176 bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	53 // Perform some gc, record collector counts.
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	54 for (int i = 0; i < iterations; i++) {
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	55 System.gc();
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	56 addCollectionCount(counts, i);
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	57 }
3827 41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	58
10176 bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	59 // Check the increments:
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	60 // Old gen collectors should increase by one,
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	61 // New collectors may or may not increase.
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	62 // Any increase >=2 is unexpected.
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	63 for (String collector : counts.keySet()) {
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	64 System.out.println("Checking: " + collector);
3827 41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	65
10176 bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	66 for (int i = 0; i < iterations - 1; i++) {
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	67 List<Long> theseCounts = counts.get(collector);
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	68 long a = theseCounts.get(i);
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	69 long b = theseCounts.get(i + 1);
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	70 if (b - a >= 2) {
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	71 failed = true;
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	72 errorMessage += "Collector '" + collector + "' has increment " + (b - a) +
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	73 " at iteration " + i + "\n";
3827 41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	74 }
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	75 }
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	76 }
10176 bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	77 if (failed) {
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	78 System.err.println(errorMessage);
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	79 throw new RuntimeException("FAILED: System.gc collections miscounted.");
3827 41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	80 }
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	81 System.out.println("Passed.");
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	82 }
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	83
10176 bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	84 private static void addCollectionCount(HashMap<String, List> counts, int iteration) {
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	85 for (int i = 0; i < collectors.size(); i++) {
3827 41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	86 GarbageCollectorMXBean collector = collectors.get(i);
10176 bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	87 List thisList = counts.get(collector.getName());
bfe3be9ebd6c 7109087: gc/7072527/TestFullGCCount.java fails when GC is set in command-line kevinw parents: 3827 diff changeset	88 thisList.add(collector.getCollectionCount());
3827 41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	89 }
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	90 }
41e6ee74f879 7072527: CMS: JMM GC counters overcount in some cases kevinw parents: diff changeset	91 }

Mercurial > hg > graal-compiler

annotate test/gc/7072527/TestFullGCCount.java @ 10176:bfe3be9ebd6c