hotspot/test/runtime/NMT/ThreadedVirtualAllocTestType.java
changeset 16666 da191c7e38d2
child 19554 3f21e829c7de
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/NMT/ThreadedVirtualAllocTestType.java	Wed Apr 03 21:41:33 2013 +0200
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2013, 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
+ * @key nmt jcmd
+ * @library /testlibrary /testlibrary/whitebox
+ * @build ThreadedVirtualAllocTestType
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail ThreadedVirtualAllocTestType
+ */
+
+import com.oracle.java.testlibrary.*;
+import sun.hotspot.WhiteBox;
+
+public class ThreadedVirtualAllocTestType {
+  public static long addr;
+  public static final WhiteBox wb = WhiteBox.getWhiteBox();
+  public static final long commitSize = 128 * 1024;
+  public static final long reserveSize = 512 * 1024;
+
+  public static void main(String args[]) throws Exception {
+    OutputAnalyzer output;
+
+    String pid = Integer.toString(ProcessTools.getProcessId());
+    ProcessBuilder pb = new ProcessBuilder();
+
+    Thread reserveThread = new Thread() {
+      public void run() {
+        addr = wb.NMTReserveMemory(reserveSize);
+      }
+    };
+    reserveThread.start();
+    reserveThread.join();
+
+    mergeData();
+
+    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "detail"});
+    output = new OutputAnalyzer(pb.start());
+    output.shouldContain("Test (reserved=512KB, committed=0KB)");
+    output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved 512KB for Test");
+
+    Thread commitThread = new Thread() {
+      public void run() {
+        wb.NMTCommitMemory(addr, commitSize);
+      }
+    };
+    commitThread.start();
+    commitThread.join();
+
+    mergeData();
+
+    output = new OutputAnalyzer(pb.start());
+    output.shouldContain("Test (reserved=512KB, committed=128KB)");
+    output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed 128KB");
+
+    Thread uncommitThread = new Thread() {
+      public void run() {
+        wb.NMTUncommitMemory(addr, commitSize);
+      }
+    };
+    uncommitThread.start();
+    uncommitThread.join();
+
+    mergeData();
+
+    output = new OutputAnalyzer(pb.start());
+    output.shouldContain("Test (reserved=512KB, committed=0KB)");
+    output.shouldNotMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + commitSize) + "\\] committed");
+
+    Thread releaseThread = new Thread() {
+      public void run() {
+        wb.NMTReleaseMemory(addr, reserveSize);
+      }
+    };
+    releaseThread.start();
+    releaseThread.join();
+
+    mergeData();
+
+    output = new OutputAnalyzer(pb.start());
+    output.shouldNotContain("Test (reserved=");
+    output.shouldNotContain("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*" + Long.toHexString(addr + reserveSize) + "\\] reserved");
+  }
+
+  public static void mergeData() throws Exception {
+    // Use WB API to ensure that all data has been merged before we continue
+    if (!wb.NMTWaitForDataMerge()) {
+      throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
+    }
+  }
+}