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test/gc/arguments/TestUseCompressedOopsErgoTools.java@710a3c8b516e (annotated)

test/gc/arguments/TestUseCompressedOopsErgoTools.java

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

author

aoqi

date

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

changeset 6876

710a3c8b516e

parent 5717

2f426063daea

parent 0

f90c822e73f8

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	import sun.management.ManagementFactoryHelper;
aoqi@0	25	import com.sun.management.HotSpotDiagnosticMXBean;
aoqi@0	26	import com.sun.management.VMOption;
aoqi@0	27
aoqi@0	28	import java.util.regex.Matcher;
aoqi@0	29	import java.util.regex.Pattern;
aoqi@0	30	import java.util.ArrayList;
aoqi@0	31	import java.util.Arrays;
aoqi@0	32
aoqi@0	33	import com.oracle.java.testlibrary.*;
aoqi@0	34	import sun.hotspot.WhiteBox;
aoqi@0	35
aoqi@0	36	class DetermineMaxHeapForCompressedOops {
aoqi@0	37	public static void main(String[] args) throws Exception {
aoqi@0	38	WhiteBox wb = WhiteBox.getWhiteBox();
aoqi@0	39	System.out.print(wb.getCompressedOopsMaxHeapSize());
aoqi@0	40	}
aoqi@0	41	}
aoqi@0	42
aoqi@0	43	class TestUseCompressedOopsErgoTools {
aoqi@0	44
aoqi@0	45	private static long getCompressedClassSpaceSize() {
aoqi@0	46	HotSpotDiagnosticMXBean diagnostic = ManagementFactoryHelper.getDiagnosticMXBean();
aoqi@0	47
aoqi@0	48	VMOption option = diagnostic.getVMOption("CompressedClassSpaceSize");
aoqi@0	49	return Long.parseLong(option.getValue());
aoqi@0	50	}
aoqi@0	51
aoqi@0	52
aoqi@0	53	public static long getMaxHeapForCompressedOops(String[] vmargs) throws Exception {
aoqi@0	54	OutputAnalyzer output = runWhiteBoxTest(vmargs, DetermineMaxHeapForCompressedOops.class.getName(), new String[] {}, false);
aoqi@0	55	return Long.parseLong(output.getStdout());
aoqi@0	56	}
aoqi@0	57
aoqi@0	58	public static boolean is64bitVM() {
aoqi@0	59	String val = System.getProperty("sun.arch.data.model");
aoqi@0	60	if (val == null) {
aoqi@0	61	throw new RuntimeException("Could not read sun.arch.data.model");
aoqi@0	62	}
aoqi@0	63	if (val.equals("64")) {
aoqi@0	64	return true;
aoqi@0	65	} else if (val.equals("32")) {
aoqi@0	66	return false;
aoqi@0	67	}
aoqi@0	68	throw new RuntimeException("Unexpected value " + val + " of sun.arch.data.model");
aoqi@0	69	}
aoqi@0	70
aoqi@0	71	/**
aoqi@0	72	* Executes a new VM process with the given class and parameters.
aoqi@0	73	* @param vmargs Arguments to the VM to run
aoqi@0	74	* @param classname Name of the class to run
aoqi@0	75	* @param arguments Arguments to the class
aoqi@0	76	* @param useTestDotJavaDotOpts Use test.java.opts as part of the VM argument string
aoqi@0	77	* @return The OutputAnalyzer with the results for the invocation.
aoqi@0	78	*/
aoqi@0	79	public static OutputAnalyzer runWhiteBoxTest(String[] vmargs, String classname, String[] arguments, boolean useTestDotJavaDotOpts) throws Exception {
aoqi@0	80	ArrayList<String> finalargs = new ArrayList<String>();
aoqi@0	81
aoqi@0	82	String[] whiteboxOpts = new String[] {
aoqi@0	83	"-Xbootclasspath/a:.",
aoqi@0	84	"-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI",
aoqi@0	85	"-cp", System.getProperty("java.class.path"),
aoqi@0	86	};
aoqi@0	87
aoqi@0	88	if (useTestDotJavaDotOpts) {
aoqi@0	89	// System.getProperty("test.java.opts") is '' if no options is set,
aoqi@0	90	// we need to skip such a result
aoqi@0	91	String[] externalVMOpts = new String[0];
aoqi@0	92	if (System.getProperty("test.java.opts") != null && System.getProperty("test.java.opts").length() != 0) {
aoqi@0	93	externalVMOpts = System.getProperty("test.java.opts").split(" ");
aoqi@0	94	}
aoqi@0	95	finalargs.addAll(Arrays.asList(externalVMOpts));
aoqi@0	96	}
aoqi@0	97
aoqi@0	98	finalargs.addAll(Arrays.asList(vmargs));
aoqi@0	99	finalargs.addAll(Arrays.asList(whiteboxOpts));
aoqi@0	100	finalargs.add(classname);
aoqi@0	101	finalargs.addAll(Arrays.asList(arguments));
aoqi@0	102
aoqi@0	103	ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(finalargs.toArray(new String[0]));
aoqi@0	104	OutputAnalyzer output = new OutputAnalyzer(pb.start());
aoqi@0	105	output.shouldHaveExitValue(0);
aoqi@0	106	return output;
aoqi@0	107	}
aoqi@0	108
aoqi@0	109	private static String[] join(String[] part1, String part2) {
aoqi@0	110	ArrayList<String> result = new ArrayList<String>();
aoqi@0	111	result.addAll(Arrays.asList(part1));
aoqi@0	112	result.add(part2);
aoqi@0	113	return result.toArray(new String[0]);
aoqi@0	114	}
aoqi@0	115
aoqi@0	116	public static void checkCompressedOopsErgo(String[] gcflags) throws Exception {
aoqi@0	117	long maxHeapForCompressedOops = getMaxHeapForCompressedOops(gcflags);
aoqi@0	118
aoqi@0	119	checkUseCompressedOops(gcflags, maxHeapForCompressedOops, true);
aoqi@0	120	checkUseCompressedOops(gcflags, maxHeapForCompressedOops - 1, true);
aoqi@0	121	checkUseCompressedOops(gcflags, maxHeapForCompressedOops + 1, false);
aoqi@0	122
aoqi@0	123	// the use of HeapBaseMinAddress should not change the outcome
aoqi@0	124	checkUseCompressedOops(join(gcflags, "-XX:HeapBaseMinAddress=32G"), maxHeapForCompressedOops, true);
aoqi@0	125	checkUseCompressedOops(join(gcflags, "-XX:HeapBaseMinAddress=32G"), maxHeapForCompressedOops - 1, true);
aoqi@0	126	checkUseCompressedOops(join(gcflags, "-XX:HeapBaseMinAddress=32G"), maxHeapForCompressedOops + 1, false);
aoqi@0	127
aoqi@0	128	// use a different object alignment
aoqi@0	129	maxHeapForCompressedOops = getMaxHeapForCompressedOops(join(gcflags, "-XX:ObjectAlignmentInBytes=16"));
aoqi@0	130
aoqi@0	131	checkUseCompressedOops(join(gcflags, "-XX:ObjectAlignmentInBytes=16"), maxHeapForCompressedOops, true);
aoqi@0	132	checkUseCompressedOops(join(gcflags, "-XX:ObjectAlignmentInBytes=16"), maxHeapForCompressedOops - 1, true);
aoqi@0	133	checkUseCompressedOops(join(gcflags, "-XX:ObjectAlignmentInBytes=16"), maxHeapForCompressedOops + 1, false);
aoqi@0	134
aoqi@0	135	// use a different CompressedClassSpaceSize
aoqi@0	136	String compressedClassSpaceSizeArg = "-XX:CompressedClassSpaceSize=" + 2 * getCompressedClassSpaceSize();
aoqi@0	137	maxHeapForCompressedOops = getMaxHeapForCompressedOops(join(gcflags, compressedClassSpaceSizeArg));
aoqi@0	138
aoqi@0	139	checkUseCompressedOops(join(gcflags, compressedClassSpaceSizeArg), maxHeapForCompressedOops, true);
aoqi@0	140	checkUseCompressedOops(join(gcflags, compressedClassSpaceSizeArg), maxHeapForCompressedOops - 1, true);
aoqi@0	141	checkUseCompressedOops(join(gcflags, compressedClassSpaceSizeArg), maxHeapForCompressedOops + 1, false);
aoqi@0	142	}
aoqi@0	143
aoqi@0	144	private static void checkUseCompressedOops(String[] args, long heapsize, boolean expectUseCompressedOops) throws Exception {
aoqi@0	145	ArrayList<String> finalargs = new ArrayList<String>();
aoqi@0	146	finalargs.addAll(Arrays.asList(args));
aoqi@0	147	finalargs.add("-Xmx" + heapsize);
aoqi@0	148	finalargs.add("-XX:+PrintFlagsFinal");
aoqi@0	149	finalargs.add("-version");
aoqi@0	150
aoqi@0	151	String output = expectValid(finalargs.toArray(new String[0]));
aoqi@0	152
aoqi@0	153	boolean actualUseCompressedOops = getFlagBoolValue(" UseCompressedOops", output);
aoqi@0	154
aoqi@0	155	Asserts.assertEQ(expectUseCompressedOops, actualUseCompressedOops);
aoqi@0	156	}
aoqi@0	157
aoqi@0	158	private static boolean getFlagBoolValue(String flag, String where) {
aoqi@0	159	Matcher m = Pattern.compile(flag + "\\s+:?= (true|false)").matcher(where);
aoqi@0	160	if (!m.find()) {
aoqi@0	161	throw new RuntimeException("Could not find value for flag " + flag + " in output string");
aoqi@0	162	}
aoqi@0	163	return m.group(1).equals("true");
aoqi@0	164	}
aoqi@0	165
aoqi@0	166	private static String expect(String[] flags, boolean hasWarning, boolean hasError, int errorcode) throws Exception {
aoqi@0	167	ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(flags);
aoqi@0	168	OutputAnalyzer output = new OutputAnalyzer(pb.start());
aoqi@0	169	output.shouldHaveExitValue(errorcode);
aoqi@0	170	return output.getStdout();
aoqi@0	171	}
aoqi@0	172
aoqi@0	173	private static String expectValid(String[] flags) throws Exception {
aoqi@0	174	return expect(flags, false, false, 0);
aoqi@0	175	}
aoqi@0	176	}
aoqi@0	177