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test/runtime/NMT/AllocTestType.java@879c6de913d6 (annotated)

test/runtime/NMT/AllocTestType.java

Sat, 02 Feb 2013 16:34:10 +0100

author

ctornqvi

date

Sat, 02 Feb 2013 16:34:10 +0100

changeset 4518

879c6de913d6

child 4637

1b0dc9f87e75

permissions

-rw-r--r--

8005013: Add NMT tests
Summary: Add tests for the Native Memory Tracking feature, includes regression tests for 8005936 and 8004802
Reviewed-by: zgu, coleenp

ctornqvi@4518	1	/*
ctornqvi@4518	2	* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
ctornqvi@4518	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ctornqvi@4518	4	*
ctornqvi@4518	5	* This code is free software; you can redistribute it and/or modify it
ctornqvi@4518	6	* under the terms of the GNU General Public License version 2 only, as
ctornqvi@4518	7	* published by the Free Software Foundation.
ctornqvi@4518	8	*
ctornqvi@4518	9	* This code is distributed in the hope that it will be useful, but WITHOUT
ctornqvi@4518	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ctornqvi@4518	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
ctornqvi@4518	12	* version 2 for more details (a copy is included in the LICENSE file that
ctornqvi@4518	13	* accompanied this code).
ctornqvi@4518	14	*
ctornqvi@4518	15	* You should have received a copy of the GNU General Public License version
ctornqvi@4518	16	* 2 along with this work; if not, write to the Free Software Foundation,
ctornqvi@4518	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ctornqvi@4518	18	*
ctornqvi@4518	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ctornqvi@4518	20	* or visit www.oracle.com if you need additional information or have any
ctornqvi@4518	21	* questions.
ctornqvi@4518	22	*/
ctornqvi@4518	23
ctornqvi@4518	24	/*
ctornqvi@4518	25	* @test
ctornqvi@4518	26	* @summary Test consistency of NMT by leaking a few select allocations of the Test type and then verify visibility with jcmd
ctornqvi@4518	27	* @key nmt jcmd
ctornqvi@4518	28	* @library /testlibrary
ctornqvi@4518	29	* @run compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI AllocTestType.java
ctornqvi@4518	30	* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail AllocTestType
ctornqvi@4518	31	*/
ctornqvi@4518	32
ctornqvi@4518	33	import com.oracle.java.testlibrary.*;
ctornqvi@4518	34	import sun.hotspot.WhiteBox;
ctornqvi@4518	35
ctornqvi@4518	36	public class AllocTestType {
ctornqvi@4518	37
ctornqvi@4518	38	public static void main(String args[]) throws Exception {
ctornqvi@4518	39	OutputAnalyzer output;
ctornqvi@4518	40
ctornqvi@4518	41	// Grab my own PID
ctornqvi@4518	42	String pid = Integer.toString(ProcessTools.getProcessId());
ctornqvi@4518	43	ProcessBuilder pb = new ProcessBuilder();
ctornqvi@4518	44
ctornqvi@4518	45	// Use WB API to alloc with the mtTest type
ctornqvi@4518	46	if (!WhiteBox.getWhiteBox().NMTAllocTest()) {
ctornqvi@4518	47	throw new Exception("Call to WB API NMTAllocTest() failed");
ctornqvi@4518	48	}
ctornqvi@4518	49
ctornqvi@4518	50	// Use WB API to ensure that all data has been merged before we continue
ctornqvi@4518	51	if (!WhiteBox.getWhiteBox().NMTWaitForDataMerge()) {
ctornqvi@4518	52	throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
ctornqvi@4518	53	}
ctornqvi@4518	54
ctornqvi@4518	55	// Run 'jcmd <pid> VM.native_memory summary'
ctornqvi@4518	56	pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});
ctornqvi@4518	57	output = new OutputAnalyzer(pb.start());
ctornqvi@4518	58	output.shouldContain("Test (reserved=512KB, committed=512KB)");
ctornqvi@4518	59
ctornqvi@4518	60	// Free the memory allocated by NMTAllocTest
ctornqvi@4518	61	if (!WhiteBox.getWhiteBox().NMTFreeTestMemory()) {
ctornqvi@4518	62	throw new Exception("Call to WB API NMTFreeTestMemory() failed");
ctornqvi@4518	63	}
ctornqvi@4518	64
ctornqvi@4518	65	// Use WB API to ensure that all data has been merged before we continue
ctornqvi@4518	66	if (!WhiteBox.getWhiteBox().NMTWaitForDataMerge()) {
ctornqvi@4518	67	throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
ctornqvi@4518	68	}
ctornqvi@4518	69	output = new OutputAnalyzer(pb.start());
ctornqvi@4518	70	output.shouldNotContain("Test (reserved=");
ctornqvi@4518	71	}
ctornqvi@4518	72	}