Mercurial > hg > graal-compiler
view graal/com.oracle.graal.virtual.bench/src/com/oracle/graal/virtual/bench/PartialEscapeBench.java @ 18898:886621ee9bdb
Microbenchmark for partial escape analysis.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Wed, 21 Jan 2015 15:44:30 +0100 |
parents | |
children | 05183a084a08 |
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/* * Copyright (c) 2015, 2015, 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. */ package com.oracle.graal.virtual.bench; import org.openjdk.jmh.annotations.*; public class PartialEscapeBench { private static class Thing { final int id; final String name; Thing(int id, String name) { this.id = id; this.name = name; } } @State(Scope.Thread) public static class ThingsCache { private Thing[] cache = new Thing[100]; public Thing getOrAdd(Thing input) { if (cache[input.id] == null) { cache[input.id] = input; } return cache[input.id]; } } @Benchmark @Warmup(iterations = 30) public String benchPartialEscape(ThingsCache cache) { Thing thing = cache.getOrAdd(new Thing(42, "the answer!")); return thing.name; } }