test/runtime/NMT/MallocRoundingReportTest.java

Thu, 04 Sep 2014 10:14:37 -0400

author
gtriantafill
date
Thu, 04 Sep 2014 10:14:37 -0400
changeset 7110
6640f982c1be
parent 7108
017b0145f20c
permissions
-rw-r--r--

8054711: [TESTBUG] Enable NMT2 tests after NMT2 is integrated
Summary: enable tests for NMT2
Reviewed-by: ctornqvi, zgu

gtriantafill@7108 1 /*
gtriantafill@7108 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
gtriantafill@7108 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
gtriantafill@7108 4 *
gtriantafill@7108 5 * This code is free software; you can redistribute it and/or modify it
gtriantafill@7108 6 * under the terms of the GNU General Public License version 2 only, as
gtriantafill@7108 7 * published by the Free Software Foundation.
gtriantafill@7108 8 *
gtriantafill@7108 9 * This code is distributed in the hope that it will be useful, but WITHOUT
gtriantafill@7108 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
gtriantafill@7108 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
gtriantafill@7108 12 * version 2 for more details (a copy is included in the LICENSE file that
gtriantafill@7108 13 * accompanied this code).
gtriantafill@7108 14 *
gtriantafill@7108 15 * You should have received a copy of the GNU General Public License version
gtriantafill@7108 16 * 2 along with this work; if not, write to the Free Software Foundation,
gtriantafill@7108 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
gtriantafill@7108 18 *
gtriantafill@7108 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
gtriantafill@7108 20 * or visit www.oracle.com if you need additional information or have any
gtriantafill@7108 21 * questions.
gtriantafill@7108 22 */
gtriantafill@7108 23
gtriantafill@7108 24 /*
gtriantafill@7108 25 * @test
gtriantafill@7108 26 * @summary Test consistency of NMT by creating allocations of the Test type with various sizes and verifying visibility with jcmd
gtriantafill@7108 27 * @key nmt jcmd
gtriantafill@7108 28 * @library /testlibrary /testlibrary/whitebox
gtriantafill@7108 29 * @build MallocRoundingReportTest
gtriantafill@7108 30 * @run main ClassFileInstaller sun.hotspot.WhiteBox
gtriantafill@7108 31 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocRoundingReportTest
gtriantafill@7108 32 *
gtriantafill@7108 33 */
gtriantafill@7108 34
gtriantafill@7108 35 import com.oracle.java.testlibrary.*;
gtriantafill@7108 36
gtriantafill@7108 37 import sun.hotspot.WhiteBox;
gtriantafill@7108 38
gtriantafill@7108 39 public class MallocRoundingReportTest {
gtriantafill@7108 40 private static long K = 1024;
gtriantafill@7108 41
gtriantafill@7108 42 public static void main(String args[]) throws Exception {
gtriantafill@7108 43 OutputAnalyzer output;
gtriantafill@7108 44 WhiteBox wb = WhiteBox.getWhiteBox();
gtriantafill@7108 45
gtriantafill@7108 46 // Grab my own PID
gtriantafill@7108 47 String pid = Integer.toString(ProcessTools.getProcessId());
gtriantafill@7108 48 ProcessBuilder pb = new ProcessBuilder();
gtriantafill@7108 49
gtriantafill@7108 50 long[] additionalBytes = {0, 1, 512, 650};
gtriantafill@7108 51 long[] kByteSize = {1024, 2048};
gtriantafill@7108 52 long mallocd_total = 0;
gtriantafill@7108 53 for ( int i = 0; i < kByteSize.length; i++)
gtriantafill@7108 54 {
gtriantafill@7108 55 for (int j = 0; j < (additionalBytes.length); j++) {
gtriantafill@7108 56 long curKB = kByteSize[i] + additionalBytes[j];
gtriantafill@7108 57 // round up/down to the nearest KB to match NMT reporting
gtriantafill@7108 58 long numKB = (curKB % kByteSize[i] >= 512) ? ((curKB / K) + 1) : curKB / K;
gtriantafill@7108 59 // Use WB API to alloc and free with the mtTest type
gtriantafill@7108 60 mallocd_total = wb.NMTMalloc(curKB);
gtriantafill@7108 61 // Run 'jcmd <pid> VM.native_memory summary', check for expected output
gtriantafill@7108 62 // NMT does not track memory allocations less than 1KB, and rounds to the nearest KB
gtriantafill@7108 63 String expectedOut = ("Test (reserved=" + numKB + "KB, committed=" + numKB + "KB)");
gtriantafill@7108 64
gtriantafill@7108 65 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary" });
gtriantafill@7108 66 output = new OutputAnalyzer(pb.start());
gtriantafill@7108 67 output.shouldContain(expectedOut);
gtriantafill@7108 68
gtriantafill@7108 69 wb.NMTFree(mallocd_total);
gtriantafill@7108 70 // Run 'jcmd <pid> VM.native_memory summary', check for expected output
gtriantafill@7108 71 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary" });
gtriantafill@7108 72 output = new OutputAnalyzer(pb.start());
gtriantafill@7108 73 output.shouldNotContain("Test (reserved=");
gtriantafill@7108 74 }
gtriantafill@7108 75 }
gtriantafill@7108 76 }
gtriantafill@7108 77 }

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