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test/runtime/NMT/MallocTrackingVerify.java@4edd7572c235 (annotated)

test/runtime/NMT/MallocTrackingVerify.java

Tue, 09 Sep 2014 09:48:42 -0700

author

gtriantafill

date

Tue, 09 Sep 2014 09:48:42 -0700

changeset 7156

4edd7572c235

permissions

-rw-r--r--

8054836: [TESTBUG] Test is needed to verify correctness of malloc tracking
Reviewed-by: ctornqvi, lfoltan

gtriantafill@7156	1	/*
gtriantafill@7156	2	* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
gtriantafill@7156	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
gtriantafill@7156	4	*
gtriantafill@7156	5	* This code is free software; you can redistribute it and/or modify it
gtriantafill@7156	6	* under the terms of the GNU General Public License version 2 only, as
gtriantafill@7156	7	* published by the Free Software Foundation.
gtriantafill@7156	8	*
gtriantafill@7156	9	* This code is distributed in the hope that it will be useful, but WITHOUT
gtriantafill@7156	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
gtriantafill@7156	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
gtriantafill@7156	12	* version 2 for more details (a copy is included in the LICENSE file that
gtriantafill@7156	13	* accompanied this code).
gtriantafill@7156	14	*
gtriantafill@7156	15	* You should have received a copy of the GNU General Public License version
gtriantafill@7156	16	* 2 along with this work; if not, write to the Free Software Foundation,
gtriantafill@7156	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
gtriantafill@7156	18	*
gtriantafill@7156	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
gtriantafill@7156	20	* or visit www.oracle.com if you need additional information or have any
gtriantafill@7156	21	* questions.
gtriantafill@7156	22	*/
gtriantafill@7156	23
gtriantafill@7156	24	/*
gtriantafill@7156	25	* @test
gtriantafill@7156	26	* @bug 8054836
gtriantafill@7156	27	* @summary Test to verify correctness of malloc tracking
gtriantafill@7156	28	* @key nmt jcmd
gtriantafill@7156	29	* @library /testlibrary /testlibrary/whitebox
gtriantafill@7156	30	* @build MallocTrackingVerify
gtriantafill@7156	31	* @run main ClassFileInstaller sun.hotspot.WhiteBox
gtriantafill@7156	32	* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocTrackingVerify
gtriantafill@7156	33	*
gtriantafill@7156	34	*/
gtriantafill@7156	35
gtriantafill@7156	36	import java.util.ArrayList;
gtriantafill@7156	37	import java.util.Random;
gtriantafill@7156	38
gtriantafill@7156	39	import com.oracle.java.testlibrary.*;
gtriantafill@7156	40
gtriantafill@7156	41	import sun.hotspot.WhiteBox;
gtriantafill@7156	42
gtriantafill@7156	43	public class MallocTrackingVerify {
gtriantafill@7156	44	private static int MAX_ALLOC = 4 * 1024;
gtriantafill@7156	45
gtriantafill@7156	46	static ArrayList<MallocMemory> mallocd_memory = new ArrayList<MallocMemory>();
gtriantafill@7156	47	static long mallocd_total = 0;
gtriantafill@7156	48	public static WhiteBox wb = WhiteBox.getWhiteBox();
gtriantafill@7156	49
gtriantafill@7156	50	public static void main(String args[]) throws Exception {
gtriantafill@7156	51	OutputAnalyzer output;
gtriantafill@7156	52
gtriantafill@7156	53	// Grab my own PID
gtriantafill@7156	54	String pid = Integer.toString(ProcessTools.getProcessId());
gtriantafill@7156	55	ProcessBuilder pb = new ProcessBuilder();
gtriantafill@7156	56
gtriantafill@7156	57	Random random = new Random();
gtriantafill@7156	58	// Allocate small amounts of memory with random pseudo call stack
gtriantafill@7156	59	while (mallocd_total < MAX_ALLOC) {
gtriantafill@7156	60	int size = random.nextInt(31) + 1;
gtriantafill@7156	61	long addr = wb.NMTMallocWithPseudoStack(size, random.nextInt());
gtriantafill@7156	62	if (addr != 0) {
gtriantafill@7156	63	MallocMemory mem = new MallocMemory(addr, size);
gtriantafill@7156	64	mallocd_memory.add(mem);
gtriantafill@7156	65	mallocd_total += size;
gtriantafill@7156	66	} else {
gtriantafill@7156	67	System.out.println("Out of malloc memory");
gtriantafill@7156	68	break;
gtriantafill@7156	69	}
gtriantafill@7156	70	}
gtriantafill@7156	71
gtriantafill@7156	72	pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary" });
gtriantafill@7156	73	output = new OutputAnalyzer(pb.start());
gtriantafill@7156	74	output.shouldContain("Test (reserved=4KB, committed=4KB)");
gtriantafill@7156	75
gtriantafill@7156	76	// Free
gtriantafill@7156	77	for (MallocMemory mem : mallocd_memory) {
gtriantafill@7156	78	wb.NMTFree(mem.addr());
gtriantafill@7156	79	}
gtriantafill@7156	80
gtriantafill@7156	81	// Run 'jcmd <pid> VM.native_memory summary', check for expected output
gtriantafill@7156	82	pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid,
gtriantafill@7156	83	"VM.native_memory", "summary" });
gtriantafill@7156	84	output = new OutputAnalyzer(pb.start());
gtriantafill@7156	85	output.shouldNotContain("Test (reserved=");
gtriantafill@7156	86	}
gtriantafill@7156	87
gtriantafill@7156	88	static class MallocMemory {
gtriantafill@7156	89	private long addr;
gtriantafill@7156	90	private int size;
gtriantafill@7156	91
gtriantafill@7156	92	MallocMemory(long addr, int size) {
gtriantafill@7156	93	this.addr = addr;
gtriantafill@7156	94	this.size = size;
gtriantafill@7156	95	}
gtriantafill@7156	96
gtriantafill@7156	97	long addr() {
gtriantafill@7156	98	return this.addr;
gtriantafill@7156	99	}
gtriantafill@7156	100
gtriantafill@7156	101	int size() {
gtriantafill@7156	102	return this.size;
gtriantafill@7156	103	}
gtriantafill@7156	104	}
gtriantafill@7156	105	}