| /* |
| * Copyright (c) 2020, Huawei Technologies Co. Ltd. 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 org.openjdk.micro.bench.java.util; |
| |
| import org.openjdk.jmh.annotations.*; |
| import org.openjdk.jmh.infra.Blackhole; |
| |
| import java.util.Base64; |
| import java.util.Random; |
| import java.util.ArrayList; |
| import java.util.concurrent.TimeUnit; |
| |
| @BenchmarkMode(Mode.AverageTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| @State(Scope.Thread) |
| public class Base64Encode { |
| |
| private Base64.Encoder encoder; |
| private ArrayList<byte[]> unencoded; |
| private byte[] encoded; |
| |
| private static final int TESTSIZE = 1000; |
| |
| @Param({"1", "2", "3", "6", "7", "9", "10", "48", "512", "1000", "20000"}) |
| private int maxNumBytes; |
| |
| @Setup |
| public void setup() { |
| Random r = new Random(1123); |
| |
| int dstLen = ((maxNumBytes + 16) / 3) * 4; |
| |
| encoder = Base64.getEncoder(); |
| unencoded = new ArrayList<byte[]> (); |
| encoded = new byte[dstLen]; |
| |
| for (int i = 0; i < TESTSIZE; i++) { |
| int srcLen = 1 + r.nextInt(maxNumBytes); |
| byte[] src = new byte[srcLen]; |
| r.nextBytes(src); |
| unencoded.add(src); |
| } |
| } |
| |
| @Benchmark |
| @OperationsPerInvocation(TESTSIZE) |
| public void testBase64Encode(Blackhole bh) { |
| for (byte[] s : unencoded) { |
| encoder.encode(s, encoded); |
| bh.consume(encoded); |
| } |
| } |
| } |