160 lines
7.9 KiB
Java
160 lines
7.9 KiB
Java
/*
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* Copyright (c) 2021, 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.Fork;
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import org.openjdk.jmh.annotations.Measurement;
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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 org.openjdk.jmh.annotations.Param;
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import org.openjdk.jmh.annotations.Scope;
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import org.openjdk.jmh.annotations.Setup;
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import org.openjdk.jmh.annotations.State;
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import org.openjdk.jmh.annotations.Warmup;
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import org.openjdk.jmh.infra.Blackhole;
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import java.nio.charset.Charset;
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import java.util.concurrent.TimeUnit;
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@BenchmarkMode(Mode.AverageTime)
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@OutputTimeUnit(TimeUnit.NANOSECONDS)
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@Fork(value = 3)
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@Warmup(iterations = 5, time = 2)
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@Measurement(iterations = 5, time = 3)
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@State(Scope.Thread)
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public class StringDecode {
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@Param({"US-ASCII", "ISO-8859-1", "UTF-8", "MS932", "ISO-8859-6", "ISO-2022-KR"})
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private String charsetName;
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private Charset charset;
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private byte[] asciiString;
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private byte[] utf16String;
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private byte[] longUtf16String;
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private byte[] longUtf16StartString;
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private byte[] longLatin1String;
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@Setup
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public void setup() {
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charset = Charset.forName(charsetName);
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asciiString = "ascii string".getBytes(charset);
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utf16String = "UTF-\uFF11\uFF16 string".getBytes(charset);
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longUtf16String = """
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Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam ac sem eu
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urna egestas placerat. Etiam finibus ipsum nulla, non mattis dolor cursus a.
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Nulla nec nisl consectetur, lacinia neque id, accumsan ante. Curabitur et
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sapien in magna porta ultricies. Sed vel pellentesque nibh. Pellentesque dictum
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dignissim diam eu ultricies. Class aptent taciti sociosqu ad litora torquent
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per conubia nostra, per inceptos himenaeos. Suspendisse erat diam, fringilla
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sed massa sed, posuere viverra orci. Suspendisse tempor libero non gravida
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efficitur. Vivamus lacinia risus non orci viverra, at consectetur odio laoreet.
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Suspendisse potenti.
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Phasellus vel nisi iaculis, accumsan quam sed, bibendum eros. Sed venenatis
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nulla tortor, et eleifend urna sodales id. Nullam tempus ac metus sit amet
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sollicitudin. Nam sed ex diam. Praesent vitae eros et neque condimentum
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consectetur eget non tortor. Praesent bibendum vel felis nec dignissim.
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Maecenas a enim diam. Suspendisse quis ligula at nisi accumsan lacinia id
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hendrerit sapien. \uFF11Donec aliquam mattis lectus eu ultrices. Duis eu nisl\uFF11
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euismod, blandit mauris vel, \uFF11placerat urna. Etiam malesuada enim purus,
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tristique mollis odio blandit quis.\uFF11 Vivamus posuere. \uFF11
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\uFF11
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""".getBytes(charset);
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longUtf16StartString = """
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\uFF11
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Lorem ipsum dolor sit amet, \uFF11consectetur adipiscing elit. Aliquam ac sem eu
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urna egestas \uFF11placerat. Etiam finibus ipsum nulla, non mattis dolor cursus a.
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Nulla \uFF11nec nisl consectetur, lacinia neque id, accumsan ante. Curabitur et
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sapien in \uFF11magna porta ultricies. \uFF11Sed vel pellentesque nibh. Pellentesque dictum
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dignissim diam eu ultricies. Class aptent taciti sociosqu ad litora torquent
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per conubia nostra, per inceptos himenaeos. Suspendisse erat diam, fringilla
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sed massa sed, posuere viverra orci. Suspendisse tempor libero non gravida
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efficitur. Vivamus lacinia risus non orci viverra, at consectetur odio laoreet.
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Suspendisse potenti.
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Phasellus vel nisi iaculis, accumsan quam sed, bibendum eros. Sed venenatis
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nulla tortor, et eleifend urna sodales id. Nullam tempus ac metus sit amet
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sollicitudin. Nam sed ex diam. Praesent vitae eros et neque condimentum
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consectetur eget non tortor. Praesent bibendum vel felis nec dignissim.
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Maecenas a enim diam. Suspendisse quis ligula at nisi accumsan lacinia id
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hendrerit sapien. Donec aliquam mattis lectus eu ultrices. Duis eu nisl
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euismod, blandit mauris vel, placerat urna. Etiam malesuada enim purus,
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tristique mollis odio blandit quis. Vivamus posuere.
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""".getBytes(charset);
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longLatin1String = """
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a\u00B6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6
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b\u00F6\u00F6\u00B6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6
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c\u00F6\u00F6\u00F6\u00B6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6
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d\u00F6\u00F6\u00F6\u00F6\u00B6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6
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e\u00F6\u00F6\u00F6\u00F6\u00F6\u00B6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6
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f\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00B6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6
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g\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00B6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6
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h\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00B6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6
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i\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00B6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6
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j\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00B6\u00F6\u00F6\u00F6\u00F6\u00F6
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k\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00B6\u00F6\u00F6\u00F6\u00F6
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l\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00B6\u00F6\u00F6\u00F6
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m\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00F6\u00B6\u00F6\u00F6
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""".getBytes(charset);
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}
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@Benchmark
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public String decodeAsciiCharsetName() throws Exception {
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return new String(asciiString, charsetName);
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}
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@Benchmark
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public String decodeAscii() throws Exception {
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return new String(asciiString, charset);
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}
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@Benchmark
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public String decodeLatin1Long() throws Exception {
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return new String(longLatin1String, charset);
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}
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@Benchmark
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public String decodeUTF16Short() throws Exception {
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return new String(utf16String, charset);
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}
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@Benchmark
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public String decodeUTF16LongEnd() throws Exception {
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return new String(longUtf16String, charset);
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}
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@Benchmark
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public String decodeUTF16LongStart() throws Exception {
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return new String(longUtf16StartString, charset);
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}
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@Benchmark
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public void decodeUTF16LongMixed(Blackhole bh) throws Exception {
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bh.consume(new String(longUtf16StartString, charset));
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bh.consume(new String(longUtf16String, charset));
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}
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}
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