mirror of
https://github.com/openjdk/jdk.git
synced 2026-07-28 11:53:09 +00:00
105 lines
3.7 KiB
Java
105 lines
3.7 KiB
Java
/*
|
|
* Copyright (c) 2025, 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 id=ZFakeNUMA
|
|
* @requires vm.gc.Z & vm.debug
|
|
* @library / /test/lib
|
|
* @summary Test ZGC graceful failure when a commit fails (with ZFakeNUMA)
|
|
* @run driver gc.z.TestCommitFailure -XX:ZFakeNUMA=16
|
|
*/
|
|
|
|
import jdk.test.lib.process.ProcessTools;
|
|
|
|
import static gc.testlibrary.Allocation.blackHole;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.Arrays;
|
|
import java.util.List;
|
|
|
|
public class TestCommitFailure {
|
|
static final int K = 1024;
|
|
static final int M = 1024 * K;
|
|
|
|
static final int XMS = 128 * M;
|
|
static final int XMX = 512 * M;
|
|
|
|
static class Test {
|
|
static final int LARGE_ALLOC = 256 * M;
|
|
static final int SMALL_GARBAGE = 256 * M;
|
|
static final int SMALL_LIVE = 128 * M;
|
|
|
|
// Allocates at least totalLive bytes of objects and add them to list.
|
|
static void allocLive(List<Object> list, int totalLive) {
|
|
final int largePageAllocationSize = 6 * M;
|
|
for (int live = 0; live < totalLive; live += largePageAllocationSize) {
|
|
list.add(new byte[largePageAllocationSize - K]);
|
|
}
|
|
}
|
|
|
|
// Allocates at least totalGarbage bytes of garbage large pages.
|
|
static void allocGarbage(int totalGarbage) {
|
|
final int largePageAllocationSize = 6 * M;
|
|
for (int garbage = 0; garbage < totalGarbage; garbage += largePageAllocationSize) {
|
|
blackHole(new byte[largePageAllocationSize - K]);
|
|
}
|
|
}
|
|
|
|
public static void main(String[] args) {
|
|
final var list = new ArrayList<Object>();
|
|
try {
|
|
// Fill heap with small live objects
|
|
allocLive(list, SMALL_LIVE);
|
|
// Fill with small garbage objects
|
|
allocGarbage(SMALL_GARBAGE);
|
|
// Allocate large objects where commit fails until an OOME is thrown
|
|
while (true) {
|
|
list.add(new byte[LARGE_ALLOC - K]);
|
|
}
|
|
} catch (OutOfMemoryError oome) {}
|
|
blackHole(list);
|
|
}
|
|
}
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
final int xmxInM = XMX / M;
|
|
final int xmsInM = XMS / M;
|
|
final var arguments = new ArrayList(Arrays.asList(args));
|
|
arguments.addAll(List.of(
|
|
"-XX:+UseZGC",
|
|
"-Xlog:gc+init",
|
|
"-XX:ZFailLargerCommits=" + XMS,
|
|
"-Xms" + xmsInM + "M",
|
|
"-Xmx" + xmxInM + "M",
|
|
Test.class.getName()));
|
|
|
|
ProcessTools.executeTestJava(arguments)
|
|
.outputTo(System.out)
|
|
.errorTo(System.out)
|
|
.shouldContain("Forced to lower max Java heap size")
|
|
.shouldHaveExitValue(0);
|
|
}
|
|
}
|