--- /dev/null 2014-12-02 13:47:03.829845816 +0300 +++ new/test/compiler/codecache/jmx/UsageThresholdNotExceededTest.java 2014-12-04 21:15:01.660585389 +0300 @@ -0,0 +1,75 @@ +/* + * 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 UsageThresholdNotExceededTest + * @library /testlibrary /testlibrary/whitebox + * @build UsageThresholdNotExceededTest + * @run main ClassFileInstaller sun.hotspot.WhiteBox + * sun.hotspot.WhiteBox$WhiteBoxPermission + * @run main/othervm -Xbootclasspath/a:. -XX:-UseCodeCacheFlushing + * -XX:-MethodFlushing -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI + * -XX:+SegmentedCodeCache -XX:CompileCommand=compileonly,null::* + * UsageThresholdNotExceededTest + * @summary verifying that usage threshold not exceeded while allocating less + * than usage threshold + */ +public class UsageThresholdNotExceededTest { + + private final BlobType btype; + + public UsageThresholdNotExceededTest(BlobType btype) { + this.btype = btype; + } + + public static void main(String[] args) { + for (BlobType btype : BlobType.getAvailable()) { + if (CodeCacheUtils.isCodeHeapPredictable(btype)) { + new UsageThresholdNotExceededTest(btype).runTest(); + } + } + } + + protected void runTest() { + MemoryPoolMXBean bean = btype.getMemoryPool(); + long initialThresholdCount = bean.getUsageThresholdCount(); + long initialUsage = bean.getUsage().getUsed(); + bean.setUsageThreshold(initialUsage + 1 + + CodeCacheUtils.SEGMENT_SIZE * CodeCacheUtils.MIN_BLOCK_LENGTH); + CodeCacheUtils.WB.allocateCodeBlob( + CodeCacheUtils.SEGMENT_SIZE * CodeCacheUtils.MIN_BLOCK_LENGTH + - CodeCacheUtils.getHeaderSize(btype), btype.id); + CodeCacheUtils.WB.fullGC(); + Asserts.assertEQ(bean.getUsageThresholdCount(), initialThresholdCount, + String.format("Usage threshold was hit: %d times for %s. " + + "Threshold value: %d with current usage: %d", + bean.getUsageThresholdCount(), bean.getName(), + bean.getUsageThreshold(), bean.getUsage().getUsed())); + System.out.println("INFO: Case finished successfully for " + + bean.getName()); + } +}