truffle: test/gc/7072527/TestFullGCCount.java annotate

annotate test/gc/7072527/TestFullGCCount.java @ 17716:cdb71841f4bc

6498581: ThreadInterruptTest3 produces wrong output on Windows Summary: There is race condition between os::interrupt and os::is_interrupted on Windows. In JVM_Sleep(Thread.sleep), check if thread gets interrupted, it may see interrupted but not really interrupted so cause spurious waking up (early return from sleep). Fix by checking if interrupt event really gets set thus prevent false return. For intrinsic of _isInterrupted, on Windows, go fastpath only on bit not set. Reviewed-by: acorn, kvn Contributed-by: david.holmes@oracle.com, yumin.qi@oracle.com

author	minqi
date	Wed, 26 Feb 2014 15:20:41 -0800
parents	bfe3be9ebd6c
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 > truffle

annotate test/gc/7072527/TestFullGCCount.java @ 17716:cdb71841f4bc