--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/NMT/VirtualAllocCommitUncommitRecommit.java Tue Aug 12 14:06:41 2014 -0700
@@ -0,0 +1,166 @@
+/*
+ * 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
+ * @summary Test reserve/commit/uncommit/release of virtual memory and that we track it correctly
+ * @key nmt jcmd
+ * @library /testlibrary /testlibrary/whitebox
+ * @ignore
+ * @build VirtualAllocCommitUncommitRecommit
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail VirtualAllocCommitUncommitRecommit
+ *
+ */
+
+import com.oracle.java.testlibrary.*;
+
+import sun.hotspot.WhiteBox;
+
+public class VirtualAllocCommitUncommitRecommit {
+
+ public static WhiteBox wb = WhiteBox.getWhiteBox();
+
+ public static void main(String args[]) throws Exception {
+ OutputAnalyzer output;
+ long commitSize = 4 * 1024; // 4KB
+ long reserveSize = 1024 * 1024; // 1024KB
+ long addr;
+
+ String pid = Integer.toString(ProcessTools.getProcessId());
+ ProcessBuilder pb = new ProcessBuilder();
+
+ boolean has_nmt_detail = wb.NMTIsDetailSupported();
+ if (has_nmt_detail) {
+ System.out.println("NMT detail support detected.");
+ } else {
+ System.out.println("NMT detail support not detected.");
+ }
+
+ // reserve
+ addr = wb.NMTReserveMemory(reserveSize);
+ pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid,
+ "VM.native_memory", "detail" });
+
+ output = new OutputAnalyzer(pb.start());
+ output.shouldContain("Test (reserved=1024KB, committed=0KB)");
+ if (has_nmt_detail) {
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 1024KB for Test");
+ }
+
+ long addrA = addr;
+ long addrB = addr + commitSize;
+ long addrC = addr + (2 * commitSize);
+ long addrD = addr + (3 * commitSize);
+ long addrE = addr + (4 * commitSize);
+ long addrF = addr + (5 * commitSize);
+
+ // commit ABCD
+ wb.NMTCommitMemory(addrA, commitSize);
+ wb.NMTCommitMemory(addrB, commitSize);
+ wb.NMTCommitMemory(addrC, commitSize);
+ wb.NMTCommitMemory(addrD, commitSize);
+
+ output = new OutputAnalyzer(pb.start());
+ output.shouldContain("Test (reserved=1024KB, committed=16KB)");
+
+ if (has_nmt_detail) {
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 1024KB for Test");
+ }
+ // uncommit BC
+ wb.NMTUncommitMemory(addrB, commitSize);
+ wb.NMTUncommitMemory(addrC, commitSize);
+
+ output = new OutputAnalyzer(pb.start());
+ output.shouldContain("Test (reserved=1024KB, committed=8KB)");
+
+ if (has_nmt_detail) {
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 1024KB for Test");
+ }
+
+ // commit EF
+ wb.NMTCommitMemory(addrE, commitSize);
+ wb.NMTCommitMemory(addrF, commitSize);
+
+ output = new OutputAnalyzer(pb.start());
+ output.shouldContain("Test (reserved=1024KB, committed=16KB)");
+ if (has_nmt_detail) {
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 1024KB for Test");
+ }
+
+ // uncommit A
+ wb.NMTUncommitMemory(addrA, commitSize);
+
+ output = new OutputAnalyzer(pb.start());
+ output.shouldContain("Test (reserved=1024KB, committed=12KB)");
+ if (has_nmt_detail) {
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 1024KB for Test");
+ }
+
+ // commit ABC
+ wb.NMTCommitMemory(addrA, commitSize);
+ wb.NMTCommitMemory(addrB, commitSize);
+ wb.NMTCommitMemory(addrC, commitSize);
+
+ output = new OutputAnalyzer(pb.start());
+ output.shouldContain("Test (reserved=1024KB, committed=24KB)");
+ if (has_nmt_detail) {
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 1024KB for Test");
+ }
+
+ // uncommit ABCDEF
+ wb.NMTUncommitMemory(addrA, commitSize);
+ wb.NMTUncommitMemory(addrB, commitSize);
+ wb.NMTUncommitMemory(addrC, commitSize);
+ wb.NMTUncommitMemory(addrD, commitSize);
+ wb.NMTUncommitMemory(addrE, commitSize);
+ wb.NMTUncommitMemory(addrF, commitSize);
+
+ output = new OutputAnalyzer(pb.start());
+ output.shouldContain("Test (reserved=1024KB, committed=0KB)");
+ if (has_nmt_detail) {
+ output.shouldMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize)
+ + "\\] reserved 1024KB for Test");
+ }
+
+ // release
+ wb.NMTReleaseMemory(addr, reserveSize);
+ output = new OutputAnalyzer(pb.start());
+ output.shouldNotContain("Test (reserved=");
+ output.shouldNotMatch("\\[0x[0]*" + Long.toHexString(addr) + " - 0x[0]*"
+ + Long.toHexString(addr + reserveSize) + "\\] reserved");
+ }
+}