Mercurial > jdk8-mips64-public > hotspot / annotate
test/runtime/NMT/MallocSiteHashOverflow.java@4edd7572c235 (annotated)
test/runtime/NMT/MallocSiteHashOverflow.java
Tue, 09 Sep 2014 09:48:42 -0700
- author
- gtriantafill
- date
- Tue, 09 Sep 2014 09:48:42 -0700
- changeset 7156
- 4edd7572c235
- parent 7115
- 3f9ff5e261c6
- child 7342
- 80260967f994
- permissions
- -rw-r--r--
8054836: [TESTBUG] Test is needed to verify correctness of malloc tracking
Reviewed-by: ctornqvi, lfoltan
| gtriantafill@7108 | 1 | /* |
| gtriantafill@7108 | 2 | * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
| gtriantafill@7108 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| gtriantafill@7108 | 4 | * |
| gtriantafill@7108 | 5 | * This code is free software; you can redistribute it and/or modify it |
| gtriantafill@7108 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| gtriantafill@7108 | 7 | * published by the Free Software Foundation. |
| gtriantafill@7108 | 8 | * |
| gtriantafill@7108 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| gtriantafill@7108 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| gtriantafill@7108 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| gtriantafill@7108 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| gtriantafill@7108 | 13 | * accompanied this code). |
| gtriantafill@7108 | 14 | * |
| gtriantafill@7108 | 15 | * You should have received a copy of the GNU General Public License version |
| gtriantafill@7108 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| gtriantafill@7108 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| gtriantafill@7108 | 18 | * |
| gtriantafill@7108 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| gtriantafill@7108 | 20 | * or visit www.oracle.com if you need additional information or have any |
| gtriantafill@7108 | 21 | * questions. |
| gtriantafill@7108 | 22 | */ |
| gtriantafill@7108 | 23 | |
| gtriantafill@7108 | 24 | /* |
| gtriantafill@7108 | 25 | * @test |
| gtriantafill@7108 | 26 | * @summary Test corner case that overflows malloc site hashtable bucket |
| gtriantafill@7115 | 27 | * @key nmt jcmd stress |
| gtriantafill@7108 | 28 | * @library /testlibrary /testlibrary/whitebox |
| gtriantafill@7108 | 29 | * @ignore - This test is disabled since it will stress NMT and timeout during normal testing |
| gtriantafill@7108 | 30 | * @build MallocSiteHashOverflow |
| gtriantafill@7108 | 31 | * @run main ClassFileInstaller sun.hotspot.WhiteBox |
| gtriantafill@7108 | 32 | * @run main/othervm/timeout=480 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocSiteHashOverflow |
| gtriantafill@7108 | 33 | */ |
| gtriantafill@7108 | 34 | |
| gtriantafill@7108 | 35 | import com.oracle.java.testlibrary.*; |
| gtriantafill@7108 | 36 | import sun.hotspot.WhiteBox; |
| gtriantafill@7108 | 37 | |
| gtriantafill@7108 | 38 | public class MallocSiteHashOverflow { |
| gtriantafill@7108 | 39 | private static long K = 1024; |
| gtriantafill@7108 | 40 | public static void main(String args[]) throws Exception { |
| gtriantafill@7108 | 41 | String vm_name = System.getProperty("java.vm.name"); |
| gtriantafill@7108 | 42 | |
| gtriantafill@7108 | 43 | // For 32-bit systems, create 257 malloc sites with the same hash bucket to overflow a hash bucket |
| gtriantafill@7108 | 44 | // For 64-bit systems, create 64K + 1 malloc sites with the same hash bucket to overflow a hash bucket |
| gtriantafill@7108 | 45 | long entries = 257; |
| gtriantafill@7108 | 46 | if (Platform.is64bit()) { |
| gtriantafill@7108 | 47 | entries = 64 * K + 1; |
| gtriantafill@7108 | 48 | } |
| gtriantafill@7108 | 49 | |
| gtriantafill@7108 | 50 | OutputAnalyzer output; |
| gtriantafill@7108 | 51 | WhiteBox wb = WhiteBox.getWhiteBox(); |
| gtriantafill@7108 | 52 | |
| gtriantafill@7108 | 53 | // Grab my own PID |
| gtriantafill@7108 | 54 | String pid = Integer.toString(ProcessTools.getProcessId()); |
| gtriantafill@7108 | 55 | ProcessBuilder pb = new ProcessBuilder(); |
| gtriantafill@7108 | 56 | |
| gtriantafill@7108 | 57 | wb.NMTOverflowHashBucket(entries); |
| gtriantafill@7108 | 58 | |
| gtriantafill@7108 | 59 | // Run 'jcmd <pid> VM.native_memory summary' |
| gtriantafill@7108 | 60 | pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "statistics"}); |
| gtriantafill@7108 | 61 | output = new OutputAnalyzer(pb.start()); |
| gtriantafill@7108 | 62 | output.shouldContain("Tracking level has been downgraded due to lack of resources"); |
| gtriantafill@7108 | 63 | } |
| gtriantafill@7108 | 64 | } |
