8054836: [TESTBUG] Test is needed to verify correctness of malloc tracking
Reviewed-by: ctornqvi, lfoltan
--- a/hotspot/test/TEST.groups Mon Sep 08 23:49:39 2014 +0400
+++ b/hotspot/test/TEST.groups Tue Sep 09 09:48:42 2014 -0700
@@ -80,6 +80,7 @@
runtime/NMT/MallocSiteHashOverflow.java \
runtime/NMT/MallocStressTest.java \
runtime/NMT/MallocTestType.java \
+ runtime/NMT/MallocTrackingVerify.java \
runtime/NMT/ReleaseCommittedMemory.java \
runtime/NMT/ReleaseNoCommit.java \
runtime/NMT/ShutdownTwice.java \
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/NMT/MallocTrackingVerify.java Tue Sep 09 09:48:42 2014 -0700
@@ -0,0 +1,105 @@
+/*
+ * 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;
+ }
+ }
+}