1 /*
2 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @summary Test checks output displayed with jstat -gc.
27 * Test scenario:
28 * test forces debuggee application eat ~70% of heap and runs jstat.
29 * jstat should show actual usage of old gen (OC/OU ~= old gen usage).
30 * @requires vm.opt.ExplicitGCInvokesConcurrent != true
31 * @requires vm.gc != "Z"
32 * @modules java.base/jdk.internal.misc
33 * @library /test/lib
34 * @library ../share
35 * @run main/othervm -XX:+UsePerfData -XX:MaxNewSize=4m -XX:MaxHeapSize=128M -XX:MaxMetaspaceSize=128M GcTest02
36 */
37 import utils.*;
38
39 public class GcTest02 {
40
41 public static void main(String[] args) throws Exception {
42 new GarbageProducerTest(new JstatGcTool(ProcessHandle.current().pid())).run();
43 }
44 }
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1 /*
2 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @summary Test checks output displayed with jstat -gc.
27 * Test scenario:
28 * test forces debuggee application eat ~70% of heap and runs jstat.
29 * jstat should show actual usage of old gen (OC/OU ~= old gen usage).
30 * @requires vm.opt.ExplicitGCInvokesConcurrent != true
31 * @requires vm.gc != "Z"
32 * @modules java.base/jdk.internal.misc
33 * @library /test/lib
34 * @library ../share
35 * @build sun.hotspot.WhiteBox
36 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
37 * sun.hotspot.WhiteBox$WhiteBoxPermission
38 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
39 -XX:+UsePerfData -XX:MaxNewSize=4m -XX:MaxHeapSize=128M -XX:MaxMetaspaceSize=128M GcTest02
40 */
41 import utils.*;
42 import sun.hotspot.WhiteBox;
43
44 public class GcTest02 {
45
46 public static void main(String[] args) throws Exception {
47 WhiteBox wb = WhiteBox.getWhiteBox();
48 // This test produces more than 90_000 classes until it eats up ~70% of the 128M meta space.
49 // The loading of each of these classes triggers a full dependency check for ALL nmethods
50 // in debug/fastdebug builds because 'VerifyDependencies' is 'true' there. This slows down the
51 // test from about 3 sec. in the opt to about 88 sec. in the fastdebug build on x86_64 and from
52 // about 4 sec. to about 560 sec. on ppc64.
53 // Because this test is not about dependency checking, it makes sense to switch of
54 // 'VerifyDependencies' if it is run inside a debug/fastdebug VM and decrease the execution time
55 // down to about 6 sec. on both x86_64 and ppc64.
56 if (!wb.isConstantVMFlag("VerifyDependencies")) {
57 // "VerifyDependencies" is a "development" flag (i.e. it is constant in a product build) so
58 // '!wb.isConstantVMFlag("VerifyDependencies")' means that we run inside a debug/fastdebug VM.
59 wb.setBooleanVMFlag("VerifyDependencies", false);
60 }
61 new GarbageProducerTest(new JstatGcTool(ProcessHandle.current().pid())).run();
62 }
63 }
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