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test/gc/arguments/TestMaxNewSize.java@3b4e1b5c13a0 (annotated)

test/gc/arguments/TestMaxNewSize.java

Thu, 20 Mar 2014 16:31:47 +0100

author

jwilhelm

date

Thu, 20 Mar 2014 16:31:47 +0100

changeset 6400

3b4e1b5c13a0

parent 0

f90c822e73f8

permissions

-rw-r--r--

8037510: CMM Testing: Min/MaxHeapFreeRatio flags should be manageable through the API
Summary: Added tests for Min/MaxHeapFreeRatio flags
Reviewed-by: jwilhelm, tschatzl
Contributed-by: andrey.x.zakharov@oracle.com

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 TestMaxNewSize
aoqi@0	26	* @key gc
aoqi@0	27	* @bug 7057939
aoqi@0	28	* @summary Make sure that MaxNewSize always has a useful value after argument
aoqi@0	29	* processing.
aoqi@0	30	* @library /testlibrary
aoqi@0	31	* @build TestMaxNewSize
aoqi@0	32	* @run main TestMaxNewSize -XX:+UseSerialGC
aoqi@0	33	* @run main TestMaxNewSize -XX:+UseParallelGC
aoqi@0	34	* @run main TestMaxNewSize -XX:+UseConcMarkSweepGC
aoqi@0	35	* @run main TestMaxNewSize -XX:+UseG1GC
aoqi@0	36	* @author thomas.schatzl@oracle.com, jesper.wilhelmsson@oracle.com
aoqi@0	37	*/
aoqi@0	38
aoqi@0	39	import java.util.regex.Matcher;
aoqi@0	40	import java.util.regex.Pattern;
aoqi@0	41
aoqi@0	42	import java.math.BigInteger;
aoqi@0	43
aoqi@0	44	import java.util.ArrayList;
aoqi@0	45	import java.util.Arrays;
aoqi@0	46
aoqi@0	47	import com.oracle.java.testlibrary.*;
aoqi@0	48
aoqi@0	49	public class TestMaxNewSize {
aoqi@0	50
aoqi@0	51	private static void checkMaxNewSize(String[] flags, int heapsize) throws Exception {
aoqi@0	52	BigInteger actual = new BigInteger(getMaxNewSize(flags));
aoqi@0	53	System.out.println(actual);
aoqi@0	54	if (actual.compareTo(new BigInteger((new Long(heapsize)).toString())) == 1) {
aoqi@0	55	throw new RuntimeException("MaxNewSize value set to \"" + actual +
aoqi@0	56	"\", expected otherwise when running with the following flags: " + Arrays.asList(flags).toString());
aoqi@0	57	}
aoqi@0	58	}
aoqi@0	59
aoqi@0	60	private static void checkIncompatibleNewSize(String[] flags) throws Exception {
aoqi@0	61	ArrayList<String> finalargs = new ArrayList<String>();
aoqi@0	62	finalargs.addAll(Arrays.asList(flags));
aoqi@0	63	finalargs.add("-version");
aoqi@0	64
aoqi@0	65	ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(finalargs.toArray(new String[0]));
aoqi@0	66	OutputAnalyzer output = new OutputAnalyzer(pb.start());
aoqi@0	67	output.shouldContain("Initial young gen size set larger than the maximum young gen size");
aoqi@0	68	}
aoqi@0	69
aoqi@0	70	private static boolean isRunningG1(String[] args) {
aoqi@0	71	for (int i = 0; i < args.length; i++) {
aoqi@0	72	if (args[i].contains("+UseG1GC")) {
aoqi@0	73	return true;
aoqi@0	74	}
aoqi@0	75	}
aoqi@0	76	return false;
aoqi@0	77	}
aoqi@0	78
aoqi@0	79	private static String getMaxNewSize(String[] flags) throws Exception {
aoqi@0	80	ArrayList<String> finalargs = new ArrayList<String>();
aoqi@0	81	finalargs.addAll(Arrays.asList(flags));
aoqi@0	82	if (isRunningG1(flags)) {
aoqi@0	83	finalargs.add("-XX:G1HeapRegionSize=1M");
aoqi@0	84	}
aoqi@0	85	finalargs.add("-XX:+PrintFlagsFinal");
aoqi@0	86	finalargs.add("-version");
aoqi@0	87
aoqi@0	88	ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(finalargs.toArray(new String[0]));
aoqi@0	89	OutputAnalyzer output = new OutputAnalyzer(pb.start());
aoqi@0	90	output.shouldHaveExitValue(0);
aoqi@0	91	String stdout = output.getStdout();
aoqi@0	92	//System.out.println(stdout);
aoqi@0	93	return getFlagValue("MaxNewSize", stdout);
aoqi@0	94	}
aoqi@0	95
aoqi@0	96	private static String getFlagValue(String flag, String where) {
aoqi@0	97	Matcher m = Pattern.compile(flag + "\\s+:?=\\s+\\d+").matcher(where);
aoqi@0	98	if (!m.find()) {
aoqi@0	99	throw new RuntimeException("Could not find value for flag " + flag + " in output string");
aoqi@0	100	}
aoqi@0	101	String match = m.group();
aoqi@0	102	return match.substring(match.lastIndexOf(" ") + 1, match.length());
aoqi@0	103	}
aoqi@0	104
aoqi@0	105	public static void main(String args[]) throws Exception {
aoqi@0	106	String gcName = args[0];
aoqi@0	107	final int M32 = 32 * 1024 * 1024;
aoqi@0	108	final int M64 = 64 * 1024 * 1024;
aoqi@0	109	final int M96 = 96 * 1024 * 1024;
aoqi@0	110	final int M128 = 128 * 1024 * 1024;
aoqi@0	111	checkMaxNewSize(new String[] { gcName, "-Xmx128M" }, M128);
aoqi@0	112	checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewRatio=5" }, M128);
aoqi@0	113	checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewSize=32M" }, M128);
aoqi@0	114	checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:OldSize=96M" }, M128);
aoqi@0	115	checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:MaxNewSize=32M" }, M32);
aoqi@0	116	checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewSize=32M", "-XX:MaxNewSize=32M" }, M32);
aoqi@0	117	checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewRatio=6", "-XX:MaxNewSize=32M" }, M32);
aoqi@0	118	checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-Xms96M" }, M128);
aoqi@0	119	checkMaxNewSize(new String[] { gcName, "-Xmx96M", "-Xms96M" }, M96);
aoqi@0	120	checkMaxNewSize(new String[] { gcName, "-XX:NewSize=128M", "-XX:MaxNewSize=50M"}, M128);
aoqi@0	121	}
aoqi@0	122	}