/*
* Copyright ( c ) 2020 , 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
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
package gc.z;
/*
* @ test TestAllocateHeapAt
* @ requires vm . gc . Z & os . family = = " linux "
* @ summary Test ZGC with - XX : AllocateHeapAt
* @ library / test / lib
* @ run main / othervm gc . z . TestAllocateHeapAt . true
* @ run main / othervm gc . z . TestAllocateHeapAt non - existing - directory false
*/
import jdk.test.lib.process.ProcessTools;
public class TestAllocateHeapAt {
public static void main(String[] args) throws Exception {
final String directory = args[0 ];
final boolean exists = Boolean .parseBoolean(args[1 ]);
final String heapBackingFile = "Heap Backing File: " + directory;
final String failedToCreateFile = "Failed to create file " + directory;
ProcessTools.executeProcess(ProcessTools.createJavaProcessBuilder(
"-XX:+UseZGC" ,
"-Xlog:gc*" ,
"-Xms32M" ,
"-Xmx32M" ,
"-XX:AllocateHeapAt=" + directory,
"-version" ))
.shouldContain(exists ? heapBackingFile : failedToCreateFile)
.shouldNotContain(exists ? failedToCreateFile : heapBackingFile)
.shouldHaveExitValue(exists ? 0 : 1 );
}
}
Messung V0.5 in Prozent C=92 H=96 G=93
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-06-10)
¤
*© Formatika GbR, Deutschland