jdk-24/test/hotspot/jtreg/serviceability/tmtools/jstat/GcTest02.java
Roman Kennke 8b62a2ee9d 8214259: Implementation: JEP 189: Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
Co-authored-by: Christine Flood <chf@redhat.com>
Co-authored-by: Aleksey Shipilev <shade@redhat.com>
Co-authored-by: Roland Westrelin <rwestrel@redhat.com>
Co-authored-by: Zhenygu Gu <zgu@redhat.com>
Co-authored-by: Andrew Haley <aph@redhat.com>
Co-authored-by: Andrew Dinn <adinn@redhat.com>
Co-authored-by: Mario Torre <mtorre@redhat.com>
Reviewed-by: kvn, roland, shade, coleenp, lmesnik, pliden, jgeorge, ihse, erikj
2018-12-10 15:47:44 +01:00

48 lines
2.0 KiB
Java

/*
* Copyright (c) 2015, 2018, 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.
*
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*/
/*
* @test
* @summary Test checks output displayed with jstat -gc.
* Test scenario:
* test forces debuggee application eat ~70% of heap and runs jstat.
* jstat should show actual usage of old gen (OC/OU ~= old gen usage).
* @requires vm.opt.ExplicitGCInvokesConcurrent != true
* @requires vm.gc != "Z" & vm.gc != "Shenandoah"
* @modules java.base/jdk.internal.misc
* @library /test/lib
* @library ../share
* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-VerifyDependencies
-XX:+UsePerfData -XX:MaxNewSize=4m -XX:MaxHeapSize=128M -XX:MaxMetaspaceSize=128M GcTest02
*/
import utils.*;
// This test produces more than 90_000 classes until it eats up ~70% of the 128M meta space.
// We turn off VerifyDependencies because it slows down the test considerably in debug builds.
public class GcTest02 {
public static void main(String[] args) throws Exception {
new GarbageProducerTest(new JstatGcTool(ProcessHandle.current().pid())).run();
}
}