1 /* 2 * Copyright (c) 2014, 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 run NMT baseline, allocate memory and verify output from detail.diff 27 * @key nmt jcmd 28 * @library /testlibrary /../../test/lib 29 * @ignore 30 * @build JcmdDetailDiff 31 * @run main ClassFileInstaller sun.hotspot.WhiteBox 32 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail JcmdDetailDiff 33 */ 34 35 import com.oracle.java.testlibrary.*; 36 37 import sun.hotspot.WhiteBox; 38 39 public class JcmdDetailDiff { 40 41 public static WhiteBox wb = WhiteBox.getWhiteBox(); 42 43 public static void main(String args[]) throws Exception { 44 ProcessBuilder pb = new ProcessBuilder(); 45 OutputAnalyzer output; 46 // Grab my own PID 47 String pid = Integer.toString(ProcessTools.getProcessId()); 48 49 long commitSize = 128 * 1024; 50 long reserveSize = 256 * 1024; 51 long addr; 52 53 // Run 'jcmd <pid> VM.native_memory baseline=true' 54 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "baseline=true"}); 55 pb.start().waitFor(); 56 57 output = new OutputAnalyzer(pb.start()); 58 output.shouldContain("Baseline succeeded"); 59 60 addr = wb.NMTReserveMemory(reserveSize); 61 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail.diff", "scale=KB"}); 62 63 output = new OutputAnalyzer(pb.start()); 64 output.shouldContain("Test (reserved=256KB +256KB, committed=0KB)"); 65 66 wb.NMTCommitMemory(addr, commitSize); 67 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail.diff", "scale=KB"}); 68 69 output = new OutputAnalyzer(pb.start()); 70 output.shouldContain("Test (reserved=256KB +256KB, committed=128KB +128KB)"); 71 72 wb.NMTUncommitMemory(addr, commitSize); 73 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail.diff", "scale=KB"}); 74 75 output = new OutputAnalyzer(pb.start()); 76 output.shouldContain("Test (reserved=256KB +256KB, committed=0KB)"); 77 78 wb.NMTReleaseMemory(addr, reserveSize); 79 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail.diff", "scale=KB"}); 80 81 output = new OutputAnalyzer(pb.start()); 82 output.shouldNotContain("Test (reserved="); 83 } 84 }