| /* |
| * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
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| * published by the Free Software Foundation. |
| * |
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| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
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| * |
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| */ |
| |
| /* |
| * @test TestObjectTenuringFlags |
| * @key gc |
| * @bug 6521376 |
| * @requires vm.gc.Parallel |
| * @summary Tests argument processing for NeverTenure, AlwaysTenure, |
| * and MaxTenuringThreshold |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * @run main/othervm TestObjectTenuringFlags |
| */ |
| |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.process.ProcessTools; |
| |
| import java.util.*; |
| |
| public class TestObjectTenuringFlags { |
| public static void main(String args[]) throws Exception { |
| // default case |
| runTenuringFlagsConsistencyTest( |
| new String[]{}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 7, 15)); |
| |
| // valid cases |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:+NeverTenure"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(false /* alwaysTenure */, true /* neverTenure */, 7, 16)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:+AlwaysTenure"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(true /* alwaysTenure */, false /* neverTenure */, 0, 0)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:MaxTenuringThreshold=0"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(true /* alwaysTenure */, false /* neverTenure */, 0, 0)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:MaxTenuringThreshold=5"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 5, 5)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:MaxTenuringThreshold=10"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 7, 10)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:MaxTenuringThreshold=15"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 7, 15)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:MaxTenuringThreshold=16"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 7, 16)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:InitialTenuringThreshold=0"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 0, 15)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:InitialTenuringThreshold=5"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 5, 15)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:InitialTenuringThreshold=10"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 10, 15)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:InitialTenuringThreshold=15"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 15, 15)); |
| |
| // "Last option wins" cases |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:+AlwaysTenure", "-XX:+NeverTenure"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(false /* alwaysTenure */, true /* neverTenure */, 7, 16)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:+NeverTenure", "-XX:+AlwaysTenure"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(true /* alwaysTenure */, false /* neverTenure */, 0, 0)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:MaxTenuringThreshold=16", "-XX:+AlwaysTenure"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(true /* alwaysTenure */, false /* neverTenure */, 0, 0)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:+AlwaysTenure", "-XX:MaxTenuringThreshold=16"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(false /* alwaysTenure */, false /* neverTenure */, 7, 16)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:MaxTenuringThreshold=0", "-XX:+NeverTenure"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(false /* alwaysTenure */, true /* neverTenure */, 7, 16)); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:+NeverTenure", "-XX:MaxTenuringThreshold=0"}, |
| false /* shouldFail */, |
| new ExpectedTenuringFlags(true /* alwaysTenure */, false /* neverTenure */, 0, 0)); |
| |
| // Illegal cases |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:MaxTenuringThreshold=17"}, |
| true /* shouldFail */, |
| new ExpectedTenuringFlags()); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:InitialTenuringThreshold=16"}, |
| true /* shouldFail */, |
| new ExpectedTenuringFlags()); |
| |
| runTenuringFlagsConsistencyTest( |
| new String[]{"-XX:InitialTenuringThreshold=17"}, |
| true /* shouldFail */, |
| new ExpectedTenuringFlags()); |
| } |
| |
| private static void runTenuringFlagsConsistencyTest(String[] tenuringFlags, |
| boolean shouldFail, |
| ExpectedTenuringFlags expectedFlags) throws Exception { |
| List<String> vmOpts = new ArrayList<>(); |
| if (tenuringFlags.length > 0) { |
| Collections.addAll(vmOpts, tenuringFlags); |
| } |
| Collections.addAll(vmOpts, "-XX:+UseParallelGC", "-XX:+PrintFlagsFinal", "-version"); |
| |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(vmOpts.toArray(new String[vmOpts.size()])); |
| OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
| |
| if (shouldFail) { |
| output.shouldHaveExitValue(1); |
| } else { |
| output.shouldHaveExitValue(0); |
| String stdout = output.getStdout(); |
| checkTenuringFlagsConsistency(stdout, expectedFlags); |
| } |
| } |
| |
| private static void checkTenuringFlagsConsistency(String output, ExpectedTenuringFlags expectedFlags) { |
| if (expectedFlags.alwaysTenure != FlagsValue.getFlagBoolValue("AlwaysTenure", output)) { |
| throw new RuntimeException( |
| "Actual flag AlwaysTenure " + FlagsValue.getFlagBoolValue("AlwaysTenure", output) + |
| " is not equal to expected flag AlwaysTenure " + expectedFlags.alwaysTenure); |
| } |
| |
| if (expectedFlags.neverTenure != FlagsValue.getFlagBoolValue("NeverTenure", output)) { |
| throw new RuntimeException( |
| "Actual flag NeverTenure " + FlagsValue.getFlagBoolValue("NeverTenure", output) + |
| " is not equal to expected flag NeverTenure " + expectedFlags.neverTenure); |
| } |
| |
| if (expectedFlags.initialTenuringThreshold != FlagsValue.getFlagLongValue("InitialTenuringThreshold", output)) { |
| throw new RuntimeException( |
| "Actual flag InitialTenuringThreshold " + FlagsValue.getFlagLongValue("InitialTenuringThreshold", output) + |
| " is not equal to expected flag InitialTenuringThreshold " + expectedFlags.initialTenuringThreshold); |
| } |
| |
| if (expectedFlags.maxTenuringThreshold != FlagsValue.getFlagLongValue("MaxTenuringThreshold", output)) { |
| throw new RuntimeException( |
| "Actual flag MaxTenuringThreshold " + FlagsValue.getFlagLongValue("MaxTenuringThreshold", output) + |
| " is not equal to expected flag MaxTenuringThreshold " + expectedFlags.maxTenuringThreshold); |
| } |
| } |
| } |
| |
| class ExpectedTenuringFlags { |
| public boolean alwaysTenure; |
| public boolean neverTenure; |
| public long initialTenuringThreshold; |
| public long maxTenuringThreshold; |
| |
| public ExpectedTenuringFlags(boolean alwaysTenure, |
| boolean neverTenure, |
| long initialTenuringThreshold, |
| long maxTenuringThreshold) { |
| this.alwaysTenure = alwaysTenure; |
| this.neverTenure = neverTenure; |
| this.initialTenuringThreshold = initialTenuringThreshold; |
| this.maxTenuringThreshold = maxTenuringThreshold; |
| } |
| public ExpectedTenuringFlags() {} |
| } |