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test/runtime/NMT/ThreadedMallocTestType.java@2bfa00fac03f (annotated)

test/runtime/NMT/ThreadedMallocTestType.java

Thu, 04 Jul 2013 01:00:19 -0700

author

cl

date

Thu, 04 Jul 2013 01:00:19 -0700

changeset 5323

2bfa00fac03f

parent 0

f90c822e73f8

child 7075

ac12996df59b

permissions

-rw-r--r--

Added tag jdk8-b97 for changeset d197d377ab2e

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	* @key nmt jcmd
aoqi@0	27	* @library /testlibrary /testlibrary/whitebox
aoqi@0	28	* @build ThreadedMallocTestType
aoqi@0	29	* @run main ClassFileInstaller sun.hotspot.WhiteBox
aoqi@0	30	* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ThreadedMallocTestType
aoqi@0	31	*/
aoqi@0	32
aoqi@0	33	import com.oracle.java.testlibrary.*;
aoqi@0	34	import sun.hotspot.WhiteBox;
aoqi@0	35
aoqi@0	36	public class ThreadedMallocTestType {
aoqi@0	37	public static long memAlloc1;
aoqi@0	38	public static long memAlloc2;
aoqi@0	39	public static long memAlloc3;
aoqi@0	40
aoqi@0	41	public static void main(String args[]) throws Exception {
aoqi@0	42	OutputAnalyzer output;
aoqi@0	43	final WhiteBox wb = WhiteBox.getWhiteBox();
aoqi@0	44
aoqi@0	45	// Grab my own PID
aoqi@0	46	String pid = Integer.toString(ProcessTools.getProcessId());
aoqi@0	47	ProcessBuilder pb = new ProcessBuilder();
aoqi@0	48
aoqi@0	49	Thread allocThread = new Thread() {
aoqi@0	50	public void run() {
aoqi@0	51	// Alloc memory using the WB api
aoqi@0	52	memAlloc1 = wb.NMTMalloc(128 * 1024);
aoqi@0	53	memAlloc2 = wb.NMTMalloc(256 * 1024);
aoqi@0	54	memAlloc3 = wb.NMTMalloc(512 * 1024);
aoqi@0	55	}
aoqi@0	56	};
aoqi@0	57
aoqi@0	58	allocThread.start();
aoqi@0	59	allocThread.join();
aoqi@0	60
aoqi@0	61	// Use WB API to ensure that all data has been merged before we continue
aoqi@0	62	if (!wb.NMTWaitForDataMerge()) {
aoqi@0	63	throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
aoqi@0	64	}
aoqi@0	65
aoqi@0	66	// Run 'jcmd <pid> VM.native_memory summary'
aoqi@0	67	pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});
aoqi@0	68	output = new OutputAnalyzer(pb.start());
aoqi@0	69	output.shouldContain("Test (reserved=896KB, committed=896KB)");
aoqi@0	70
aoqi@0	71	Thread freeThread = new Thread() {
aoqi@0	72	public void run() {
aoqi@0	73	// Free the memory allocated by NMTMalloc
aoqi@0	74	wb.NMTFree(memAlloc1);
aoqi@0	75	wb.NMTFree(memAlloc2);
aoqi@0	76	wb.NMTFree(memAlloc3);
aoqi@0	77	}
aoqi@0	78	};
aoqi@0	79
aoqi@0	80	freeThread.start();
aoqi@0	81	freeThread.join();
aoqi@0	82
aoqi@0	83	// Use WB API to ensure that all data has been merged before we continue
aoqi@0	84	if (!wb.NMTWaitForDataMerge()) {
aoqi@0	85	throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
aoqi@0	86	}
aoqi@0	87
aoqi@0	88	output = new OutputAnalyzer(pb.start());
aoqi@0	89	output.shouldNotContain("Test (reserved=");
aoqi@0	90	}
aoqi@0	91	}