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test/runtime/NMT/SummarySanityCheck.java@f90c822e73f8 (annotated)

test/runtime/NMT/SummarySanityCheck.java

Wed, 27 Apr 2016 01:25:04 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:25:04 +0800

changeset 0

f90c822e73f8

child 6876

710a3c8b516e

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

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	* @summary Sanity check the output of NMT
aoqi@0	28	* @library /testlibrary /testlibrary/whitebox
aoqi@0	29	* @build SummarySanityCheck
aoqi@0	30	* @run main ClassFileInstaller sun.hotspot.WhiteBox
aoqi@0	31	* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:NativeMemoryTracking=summary -XX:+WhiteBoxAPI SummarySanityCheck
aoqi@0	32	*/
aoqi@0	33
aoqi@0	34	import com.oracle.java.testlibrary.*;
aoqi@0	35
aoqi@0	36	import java.util.regex.Matcher;
aoqi@0	37	import java.util.regex.Pattern;
aoqi@0	38	import sun.hotspot.WhiteBox;
aoqi@0	39
aoqi@0	40	public class SummarySanityCheck {
aoqi@0	41
aoqi@0	42	private static String jcmdout;
aoqi@0	43	public static void main(String args[]) throws Exception {
aoqi@0	44	// Grab my own PID
aoqi@0	45	String pid = Integer.toString(ProcessTools.getProcessId());
aoqi@0	46
aoqi@0	47	// Use WB API to ensure that all data has been merged before we continue
aoqi@0	48	if (!WhiteBox.getWhiteBox().NMTWaitForDataMerge()) {
aoqi@0	49	throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
aoqi@0	50	}
aoqi@0	51
aoqi@0	52	ProcessBuilder pb = new ProcessBuilder();
aoqi@0	53
aoqi@0	54	// Run 'jcmd <pid> VM.native_memory summary scale=KB'
aoqi@0	55	pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=KB"});
aoqi@0	56	OutputAnalyzer output = new OutputAnalyzer(pb.start());
aoqi@0	57
aoqi@0	58	jcmdout = output.getOutput();
aoqi@0	59	// Split by '-' to get the 'groups'
aoqi@0	60	String[] lines = jcmdout.split("\n");
aoqi@0	61
aoqi@0	62	if (lines.length == 0) {
aoqi@0	63	throwTestException("Failed to parse jcmd output");
aoqi@0	64	}
aoqi@0	65
aoqi@0	66	int totalCommitted = 0, totalReserved = 0;
aoqi@0	67	int totalCommittedSum = 0, totalReservedSum = 0;
aoqi@0	68
aoqi@0	69	// Match '- <mtType> (reserved=<reserved>KB, committed=<committed>KB)
aoqi@0	70	Pattern mtTypePattern = Pattern.compile("-\\s+(?<typename>[\\w\\s]+)\\(reserved=(?<reserved>\\d+)KB,\\scommitted=(?<committed>\\d+)KB\\)");
aoqi@0	71	// Match 'Total: reserved=<reserved>KB, committed=<committed>KB'
aoqi@0	72	Pattern totalMemoryPattern = Pattern.compile("Total\\:\\s\\sreserved=(?<reserved>\\d+)KB,\\s\\scommitted=(?<committed>\\d+)KB");
aoqi@0	73
aoqi@0	74	for (int i = 0; i < lines.length; i++) {
aoqi@0	75	if (lines[i].startsWith("Total")) {
aoqi@0	76	Matcher totalMemoryMatcher = totalMemoryPattern.matcher(lines[i]);
aoqi@0	77
aoqi@0	78	if (totalMemoryMatcher.matches() && totalMemoryMatcher.groupCount() == 2) {
aoqi@0	79	totalCommitted = Integer.parseInt(totalMemoryMatcher.group("committed"));
aoqi@0	80	totalReserved = Integer.parseInt(totalMemoryMatcher.group("reserved"));
aoqi@0	81	} else {
aoqi@0	82	throwTestException("Failed to match the expected groups in 'Total' memory part");
aoqi@0	83	}
aoqi@0	84	} else if (lines[i].startsWith("-")) {
aoqi@0	85	Matcher typeMatcher = mtTypePattern.matcher(lines[i]);
aoqi@0	86	if (typeMatcher.matches()) {
aoqi@0	87	int typeCommitted = Integer.parseInt(typeMatcher.group("committed"));
aoqi@0	88	int typeReserved = Integer.parseInt(typeMatcher.group("reserved"));
aoqi@0	89
aoqi@0	90	// Make sure reserved is always less or equals
aoqi@0	91	if (typeCommitted > typeReserved) {
aoqi@0	92	throwTestException("Committed (" + typeCommitted + ") was more than Reserved ("
aoqi@0	93	+ typeReserved + ") for mtType: " + typeMatcher.group("typename"));
aoqi@0	94	}
aoqi@0	95
aoqi@0	96	// Add to total and compare them in the end
aoqi@0	97	totalCommittedSum += typeCommitted;
aoqi@0	98	totalReservedSum += typeReserved;
aoqi@0	99	} else {
aoqi@0	100	throwTestException("Failed to match the group on line " + i);
aoqi@0	101	}
aoqi@0	102	}
aoqi@0	103	}
aoqi@0	104
aoqi@0	105	// See if they add up correctly, rounding is a problem so make sure we're within +/- 8KB
aoqi@0	106	int committedDiff = totalCommitted - totalCommittedSum;
aoqi@0	107	if (committedDiff > 8 || committedDiff < -8) {
aoqi@0	108	throwTestException("Total committed (" + totalCommitted + ") did not match the summarized committed (" + totalCommittedSum + ")" );
aoqi@0	109	}
aoqi@0	110
aoqi@0	111	int reservedDiff = totalReserved - totalReservedSum;
aoqi@0	112	if (reservedDiff > 8 || reservedDiff < -8) {
aoqi@0	113	throwTestException("Total reserved (" + totalReserved + ") did not match the summarized reserved (" + totalReservedSum + ")" );
aoqi@0	114	}
aoqi@0	115	}
aoqi@0	116
aoqi@0	117	private static void throwTestException(String reason) throws Exception {
aoqi@0	118	throw new Exception(reason + " . Stdout is :\n" + jcmdout);
aoqi@0	119	}
aoqi@0	120	}