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test/runtime/NMT/MallocTestType.java@710a3c8b516e (annotated)

test/runtime/NMT/MallocTestType.java

Tue, 08 Aug 2017 15:57:29 +0800

author

aoqi

date

Tue, 08 Aug 2017 15:57:29 +0800

changeset 6876

710a3c8b516e

parent 4885

3b890cd4da64

parent 0

f90c822e73f8

child 7535

7ae4e26cb1e0

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	/*
aoqi@0	25	* @test
aoqi@0	26	* @summary Test consistency of NMT by leaking a few select allocations of the Test type and then verify visibility with jcmd
aoqi@0	27	* @key nmt jcmd
aoqi@0	28	* @library /testlibrary /testlibrary/whitebox
aoqi@0	29	* @build MallocTestType
aoqi@0	30	* @run main ClassFileInstaller sun.hotspot.WhiteBox
aoqi@0	31	* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocTestType
aoqi@0	32	*/
aoqi@0	33
aoqi@0	34	import com.oracle.java.testlibrary.*;
aoqi@0	35	import sun.hotspot.WhiteBox;
aoqi@0	36
aoqi@0	37	public class MallocTestType {
aoqi@0	38
aoqi@0	39	public static void main(String args[]) throws Exception {
aoqi@0	40	OutputAnalyzer output;
aoqi@0	41	WhiteBox wb = WhiteBox.getWhiteBox();
aoqi@0	42
aoqi@0	43	// Grab my own PID
aoqi@0	44	String pid = Integer.toString(ProcessTools.getProcessId());
aoqi@0	45	ProcessBuilder pb = new ProcessBuilder();
aoqi@0	46
aoqi@0	47	// Use WB API to alloc and free with the mtTest type
aoqi@0	48	long memAlloc3 = wb.NMTMalloc(128 * 1024);
aoqi@0	49	long memAlloc2 = wb.NMTMalloc(256 * 1024);
aoqi@0	50	wb.NMTFree(memAlloc3);
aoqi@0	51	long memAlloc1 = wb.NMTMalloc(512 * 1024);
aoqi@0	52	wb.NMTFree(memAlloc2);
aoqi@0	53
aoqi@0	54	// Use WB API to ensure that all data has been merged before we continue
aoqi@0	55	if (!wb.NMTWaitForDataMerge()) {
aoqi@0	56	throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
aoqi@0	57	}
aoqi@0	58
aoqi@0	59	// Run 'jcmd <pid> VM.native_memory summary'
aoqi@0	60	pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});
aoqi@0	61	output = new OutputAnalyzer(pb.start());
aoqi@0	62	output.shouldContain("Test (reserved=512KB, committed=512KB)");
aoqi@0	63
aoqi@0	64	// Free the memory allocated by NMTAllocTest
aoqi@0	65	wb.NMTFree(memAlloc1);
aoqi@0	66
aoqi@0	67	// Use WB API to ensure that all data has been merged before we continue
aoqi@0	68	if (!wb.NMTWaitForDataMerge()) {
aoqi@0	69	throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
aoqi@0	70	}
aoqi@0	71	output = new OutputAnalyzer(pb.start());
aoqi@0	72	output.shouldNotContain("Test (reserved=");
aoqi@0	73	}
aoqi@0	74	}