Mercurial > hg > graal-compiler
view test/runtime/NMT/MallocTrackingVerify.java @ 21591:6c5327245831
LinearScan: fix intervals context.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Fri, 29 May 2015 10:59:03 +0200 |
parents | 4edd7572c235 |
children |
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/* * Copyright (c) 2014, 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 * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @bug 8054836 * @summary Test to verify correctness of malloc tracking * @key nmt jcmd * @library /testlibrary /testlibrary/whitebox * @build MallocTrackingVerify * @run main ClassFileInstaller sun.hotspot.WhiteBox * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocTrackingVerify * */ import java.util.ArrayList; import java.util.Random; import com.oracle.java.testlibrary.*; import sun.hotspot.WhiteBox; public class MallocTrackingVerify { private static int MAX_ALLOC = 4 * 1024; static ArrayList<MallocMemory> mallocd_memory = new ArrayList<MallocMemory>(); static long mallocd_total = 0; public static WhiteBox wb = WhiteBox.getWhiteBox(); public static void main(String args[]) throws Exception { OutputAnalyzer output; // Grab my own PID String pid = Integer.toString(ProcessTools.getProcessId()); ProcessBuilder pb = new ProcessBuilder(); Random random = new Random(); // Allocate small amounts of memory with random pseudo call stack while (mallocd_total < MAX_ALLOC) { int size = random.nextInt(31) + 1; long addr = wb.NMTMallocWithPseudoStack(size, random.nextInt()); if (addr != 0) { MallocMemory mem = new MallocMemory(addr, size); mallocd_memory.add(mem); mallocd_total += size; } else { System.out.println("Out of malloc memory"); break; } } pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary" }); output = new OutputAnalyzer(pb.start()); output.shouldContain("Test (reserved=4KB, committed=4KB)"); // Free for (MallocMemory mem : mallocd_memory) { wb.NMTFree(mem.addr()); } // Run 'jcmd <pid> VM.native_memory summary', check for expected output pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary" }); output = new OutputAnalyzer(pb.start()); output.shouldNotContain("Test (reserved="); } static class MallocMemory { private long addr; private int size; MallocMemory(long addr, int size) { this.addr = addr; this.size = size; } long addr() { return this.addr; } int size() { return this.size; } } }