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/*
* Copyright (c) 2014, 2016, 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 UsageThresholdNotExceededTest
* @summary verifying that usage threshold not exceeded while allocating less
* than usage threshold
* @library /test/lib /
* @modules java.base/jdk.internal.misc
* java.management
*
* @build sun.hotspot.WhiteBox
* @run driver ClassFileInstaller sun.hotspot.WhiteBox
* sun.hotspot.WhiteBox$WhiteBoxPermission
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI -XX:-UseCodeCacheFlushing -XX:-MethodFlushing
* -XX:CompileCommand=compileonly,null::*
* -XX:+SegmentedCodeCache
* compiler.codecache.jmx.UsageThresholdNotExceededTest
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI -XX:-UseCodeCacheFlushing -XX:-MethodFlushing
* -XX:CompileCommand=compileonly,null::*
* -XX:-SegmentedCodeCache
* compiler.codecache.jmx.UsageThresholdNotExceededTest
*/
package compiler.codecache.jmx;
import sun.hotspot.code.BlobType;
import java.lang.management.MemoryPoolMXBean;
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()) {
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.MIN_ALLOCATION);
long size = CodeCacheUtils.getHeaderSize(btype);
CodeCacheUtils.WB.allocateCodeBlob(Math.max(0, CodeCacheUtils.MIN_ALLOCATION
- size), btype.id);
// a gc cycle triggers usage threshold recalculation
CodeCacheUtils.WB.fullGC();
CodeCacheUtils.assertEQorGTE(btype, 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());
}
}
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