--- /dev/null 2014-12-02 13:47:03.829845816 +0300 +++ new/test/compiler/codecache/jmx/PeakUsageTest.java 2014-12-04 21:15:00.140585446 +0300 @@ -0,0 +1,87 @@ +/* + * 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. + */ + +import com.oracle.java.testlibrary.Asserts; +import java.lang.management.MemoryPoolMXBean; +import sun.hotspot.code.BlobType; + +/* + * @test PeakUsageTest + * @library /testlibrary /testlibrary/whitebox + * @build PeakUsageTest + * @run main ClassFileInstaller sun.hotspot.WhiteBox + * sun.hotspot.WhiteBox$WhiteBoxPermission + * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions + * -XX:+WhiteBoxAPI -XX:+SegmentedCodeCache PeakUsageTest + * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions + * -XX:+WhiteBoxAPI -XX:-SegmentedCodeCache PeakUsageTest + * @summary testing of getPeakUsage() and resetPeakUsage for + * segmented code cache + */ +public class PeakUsageTest { + + private final BlobType btype; + + public PeakUsageTest(BlobType btype) { + this.btype = btype; + } + + public static void main(String[] args) { + for (BlobType btype : BlobType.getAvailable()) { + new PeakUsageTest(btype).runTest(); + } + } + + protected void runTest() { + MemoryPoolMXBean bean = btype.getMemoryPool(); + bean.resetPeakUsage(); + long addr = CodeCacheUtils.allocateDefaultSize(btype); + long newPeakUsage = bean.getPeakUsage().getUsed(); + try { + Asserts.assertEQ(newPeakUsage, bean.getUsage().getUsed(), + "Peak usage does not match usage after allocation for " + + bean.getName()); + } finally { + CodeCacheUtils.WB.freeCodeBlob(addr); + } + Asserts.assertEQ(newPeakUsage, bean.getPeakUsage().getUsed(), + "Code cache peak usage has changed after usage decreased for " + + bean.getName()); + bean.resetPeakUsage(); + Asserts.assertEQ(bean.getPeakUsage().getUsed(), + bean.getUsage().getUsed(), + "Code cache peak usage is not equal to usage after reset for " + + bean.getName()); + long addr2 = CodeCacheUtils.allocateDefaultSize(btype); + try { + Asserts.assertEQ(bean.getPeakUsage().getUsed(), + bean.getUsage().getUsed(), + "Code cache peak usage is not equal to usage after fresh " + + "allocation for " + bean.getName()); + } finally { + CodeCacheUtils.WB.freeCodeBlob(addr2); + } + System.out.printf("INFO: Scenario finished successfully for %s%n", + bean.getName()); + } +}