jdk-24/test/hotspot/jtreg/gc/shenandoah/compiler/TestCommonGCLoads.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

68 lines
2.3 KiB
Java

/*
* Copyright (c) 2018, Red Hat, Inc. 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.
*/
/**
* @test TestCommonGCLoads
* @summary Test GC state load commoning works
* @key gc
* @requires vm.flavor == "server"
* @requires vm.gc.Shenandoah
* @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:-TieredCompilation
* -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC
* -XX:-ShenandoahCommonGCStateLoads
* TestCommonGCLoads
* @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:-TieredCompilation
* -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC
* -XX:+ShenandoahCommonGCStateLoads
* TestCommonGCLoads
*/
public class TestCommonGCLoads {
static Object d = new Object();
static Target t1 = new Target();
static Target t2 = new Target();
static Target t3 = new Target();
static Target t4 = new Target();
static Target t5 = new Target();
static void test() {
t1.field = d;
t2.field = d;
t3.field = d;
t4.field = d;
t5.field = d;
}
static public void main(String[] args) {
for (int i = 0; i < 100_000; i++) {
test();
}
}
static class Target {
Object field;
}
}