1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/test/runtime/NMT/VirtualAllocTestType.java Wed Apr 03 21:41:33 2013 +0200 1.3 @@ -0,0 +1,88 @@ 1.4 +/* 1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. 1.11 + * 1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.15 + * version 2 for more details (a copy is included in the LICENSE file that 1.16 + * accompanied this code). 1.17 + * 1.18 + * You should have received a copy of the GNU General Public License version 1.19 + * 2 along with this work; if not, write to the Free Software Foundation, 1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.21 + * 1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 1.23 + * or visit www.oracle.com if you need additional information or have any 1.24 + * questions. 1.25 + */ 1.26 + 1.27 +/* 1.28 + * @test 1.29 + * @summary Test Reserve/Commit/Uncommit/Release of virtual memory and that we track it correctly 1.30 + * @key nmt jcmd 1.31 + * @library /testlibrary /testlibrary/whitebox 1.32 + * @build VirtualAllocTestType 1.33 + * @run main ClassFileInstaller sun.hotspot.WhiteBox 1.34 + * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail VirtualAllocTestType 1.35 + */ 1.36 + 1.37 +import com.oracle.java.testlibrary.*; 1.38 +import sun.hotspot.WhiteBox; 1.39 + 1.40 +public class VirtualAllocTestType { 1.41 + 1.42 + public static WhiteBox wb = WhiteBox.getWhiteBox(); 1.43 + public static void main(String args[]) throws Exception { 1.44 + OutputAnalyzer output; 1.45 + long commitSize = 128 * 1024; 1.46 + long reserveSize = 256 * 1024; 1.47 + long addr; 1.48 + 1.49 + String pid = Integer.toString(ProcessTools.getProcessId()); 1.50 + ProcessBuilder pb = new ProcessBuilder(); 1.51 + 1.52 + addr = wb.NMTReserveMemory(reserveSize); 1.53 + mergeData(); 1.54 + 1.55 + pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail"}); 1.56 + output = new OutputAnalyzer(pb.start()); 1.57 + output.shouldContain("Test (reserved=256KB, committed=0KB)"); 1.58 + output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved 256KB for Test"); 1.59 + 1.60 + wb.NMTCommitMemory(addr, commitSize); 1.61 + 1.62 + mergeData(); 1.63 + 1.64 + output = new OutputAnalyzer(pb.start()); 1.65 + output.shouldContain("Test (reserved=256KB, committed=128KB)"); 1.66 + output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed 128KB"); 1.67 + 1.68 + wb.NMTUncommitMemory(addr, commitSize); 1.69 + 1.70 + mergeData(); 1.71 + 1.72 + output = new OutputAnalyzer(pb.start()); 1.73 + output.shouldContain("Test (reserved=256KB, committed=0KB)"); 1.74 + output.shouldNotMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed"); 1.75 + 1.76 + wb.NMTReleaseMemory(addr, reserveSize); 1.77 + 1.78 + mergeData(); 1.79 + 1.80 + output = new OutputAnalyzer(pb.start()); 1.81 + output.shouldNotContain("Test (reserved="); 1.82 + output.shouldNotMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved"); 1.83 + } 1.84 + 1.85 + public static void mergeData() throws Exception { 1.86 + // Use WB API to ensure that all data has been merged before we continue 1.87 + if (!wb.NMTWaitForDataMerge()) { 1.88 + throw new Exception("Call to WB API NMTWaitForDataMerge() failed"); 1.89 + } 1.90 + } 1.91 +}