68 lines
2.5 KiB
Java
68 lines
2.5 KiB
Java
/*
|
|
* Copyright (c) 2019, 2023, 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 TestSmallHeap
|
|
* @requires vm.gc.Z
|
|
* @summary Test ZGC with small heaps
|
|
* @library / /test/lib
|
|
* @run driver gc.z.TestSmallHeap 16M 32M 64M 128M 256M 512M 1024M
|
|
*/
|
|
|
|
import jdk.test.lib.process.ProcessTools;
|
|
import static gc.testlibrary.Allocation.blackHole;
|
|
|
|
public class TestSmallHeap {
|
|
public static class Test {
|
|
public static void main(String[] args) throws Exception {
|
|
final long maxCapacity = Runtime.getRuntime().maxMemory();
|
|
System.out.println("Max Capacity " + maxCapacity + " bytes");
|
|
|
|
// Allocate byte arrays of increasing length, so that
|
|
// all allocation paths (small/medium/large) are tested.
|
|
for (int length = 16; length <= maxCapacity / 16; length *= 2) {
|
|
System.out.println("Allocating " + length + " bytes");
|
|
blackHole(new byte[length]);
|
|
}
|
|
|
|
System.out.println("Success");
|
|
}
|
|
}
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
for (var maxCapacity: args) {
|
|
ProcessTools.executeTestJava(
|
|
"-XX:+UseZGC",
|
|
"-Xlog:gc,gc+init,gc+reloc,gc+heap",
|
|
"-Xmx" + maxCapacity,
|
|
Test.class.getName())
|
|
.outputTo(System.out)
|
|
.errorTo(System.out)
|
|
.shouldContain("Success")
|
|
.shouldHaveExitValue(0);
|
|
}
|
|
}
|
|
}
|