/*
* Copyright ( c ) 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
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* 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
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
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*/
package gc.g1.plab.lib;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.Utils;
/**
* Utilities for PLAB testing .
*/
public class PLABUtils {
/**
* PLAB tests default options list
*/
private final static String[] GC_TUNE_OPTIONS = {
"-XX:+UseG1GC" ,
"-XX:G1HeapRegionSize=1m" ,
"-XX:OldSize=64m" ,
"-XX:-UseAdaptiveSizePolicy" ,
"-XX:MaxTenuringThreshold=1" ,
"-XX:-UseTLAB" ,
"-XX:SurvivorRatio=1"
};
/**
* GC logging options list .
*/
private final static String G1_PLAB_LOGGING_OPTIONS[] = {
"-Xlog:gc=debug,gc+plab=debug,gc+heap=debug"
};
/**
* List of options required to use WhiteBox .
*/
private final static String WB_DIAGNOSTIC_OPTIONS[] = {
"-Xbootclasspath/a:." ,
"-XX:+UnlockDiagnosticVMOptions" ,
"-XX:+WhiteBoxAPI"
};
/**
* Prepares options for testing .
*
* @ param options - additional options for testing
* @ return List of options
*/
public static List<String> prepareOptions(List<String> options) {
if (options == null ) {
throw new IllegalArgumentException("Options cannot be null" );
}
List<String> executionOtions = new ArrayList<>(
Arrays.asList(Utils.getTestJavaOpts())
);
Collections.addAll(executionOtions, WB_DIAGNOSTIC_OPTIONS);
Collections.addAll(executionOtions, G1_PLAB_LOGGING_OPTIONS);
Collections.addAll(executionOtions, GC_TUNE_OPTIONS);
executionOtions.addAll(options);
return executionOtions;
}
/**
* Common check for test PLAB application ' s results .
* @ param out OutputAnalyzer for checking
* @ throws RuntimeException
*/
public static void commonCheck(OutputAnalyzer out) throws RuntimeException {
if (out.getExitValue() != 0 ) {
System.out.println(out.getOutput());
throw new RuntimeException("Exit code is not 0" );
}
// Test expects only WhiteBox initiated GC.
out.shouldNotContain("Pause Young (G1 Evacuation Pause)" );
}
}
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