7a30c97753
8061282: Migrate jmh-jdk-microbenchmarks into the JDK Co-authored-by: Magnus Ihse Bursie <magnus.ihse.bursie@oracle.com> Co-authored-by: Erik Joelsson <erik.joelsson@oracle.com> Co-authored-by: Staffan Friberg <sfriberg@kth.se> Reviewed-by: ecaspole, mchung, erikj, ihse
58 lines
1.9 KiB
Java
58 lines
1.9 KiB
Java
/*
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* Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package org.openjdk.bench.java.lang;
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import org.openjdk.jmh.annotations.Benchmark;
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import org.openjdk.jmh.annotations.BenchmarkMode;
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import org.openjdk.jmh.annotations.CompilerControl;
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import org.openjdk.jmh.annotations.Mode;
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import org.openjdk.jmh.annotations.OutputTimeUnit;
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import java.util.concurrent.TimeUnit;
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/**
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* Tests Thread.getStackTrace()
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*/
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@BenchmarkMode(Mode.AverageTime)
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@OutputTimeUnit(TimeUnit.NANOSECONDS)
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public class GetStackTrace {
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public StackTraceElement[] depth0() {
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return Thread.currentThread().getStackTrace();
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public StackTraceElement[] depth1() {
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return depth0();
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public StackTraceElement[] depth2() {
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return depth1();
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}
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}
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