jdk-24/test/hotspot/jtreg/serviceability/dcmd/vm/TrimLibcHeapTest.java
Thomas Stuefe 6096dd9765 8268893: jcmd to trim the glibc heap
Reviewed-by: simonis, dholmes
2021-07-22 04:07:10 +00:00

56 lines
2.1 KiB
Java

/*
* Copyright (c) 2021 SAP SE. All rights reserved.
* Copyright (c) 2021, 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
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*/
import org.testng.annotations.Test;
import jdk.test.lib.dcmd.CommandExecutor;
import jdk.test.lib.dcmd.JMXExecutor;
import jdk.test.lib.process.OutputAnalyzer;
/*
* @test
* @summary Test of diagnostic command VM.trim_libc_heap
* @library /test/lib
* @requires os.family == "linux"
* @modules java.base/jdk.internal.misc
* java.compiler
* java.management
* jdk.internal.jvmstat/sun.jvmstat.monitor
* @run testng TrimLibcHeapTest
*/
public class TrimLibcHeapTest {
public void run(CommandExecutor executor) {
OutputAnalyzer output = executor.execute("System.trim_native_heap");
output.reportDiagnosticSummary();
output.shouldMatch("(Done|Not available)"); // Not available could happen on Linux + non-glibc (eg. muslc)
if (output.firstMatch("Done") != null) {
output.shouldMatch("(Virtual size before|RSS before|Swap before|No details available)");
}
}
@Test
public void jmx() {
run(new JMXExecutor());
}
}