1 /* 2 * Copyright (c) 2013, 2015, 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 * @key nmt jcmd 27 * @summary Test the NMT scale parameter 28 * @library /testlibrary 29 * @modules java.base/jdk.internal.misc 30 * java.management 31 * @run main/othervm -XX:NativeMemoryTracking=summary JcmdScale 32 */ 33 34 import jdk.test.lib.*; 35 36 public class JcmdScale { 37 38 public static void main(String args[]) throws Exception { 39 ProcessBuilder pb = new ProcessBuilder(); 40 OutputAnalyzer output; 41 // Grab my own PID 42 String pid = Long.toString(ProcessTools.getProcessId()); 43 44 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=KB"}); 45 output = new OutputAnalyzer(pb.start()); 46 output.shouldContain("KB, committed="); 47 48 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=MB"}); 49 output = new OutputAnalyzer(pb.start()); 50 output.shouldContain("MB, committed="); 51 52 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=GB"}); 53 output = new OutputAnalyzer(pb.start()); 54 output.shouldContain("GB, committed="); 55 56 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=apa"}); 57 output = new OutputAnalyzer(pb.start()); 58 output.shouldContain("Incorrect scale value: apa"); 59 60 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=GB"}); 61 output = new OutputAnalyzer(pb.start()); 62 output.shouldContain("GB, committed="); 63 64 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=apa"}); 65 output = new OutputAnalyzer(pb.start()); 66 output.shouldContain("Incorrect scale value: apa"); 67 68 } 69 }