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8259842: Remove Result cache from StringCoding

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Reviewed-by: naoto, plevart, rriggs
This commit is contained in:
Claes Redestad 2021-01-22 11:27:13 +00:00
parent d066f2b06c
commit 58ceb25443
5 changed files with 1000 additions and 1122 deletions
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88
test/micro/org/openjdk/bench/java/lang/StringEncode.java Normal file
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/*
* Copyright (c) 2021, 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 org.openjdk.bench.java.lang;
import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.infra.Blackhole;
import java.nio.charset.Charset;
import java.util.concurrent.TimeUnit;
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@Fork(value = 3, jvmArgs = "-Xmx1g")
@Warmup(iterations = 5, time = 2)
@Measurement(iterations = 5, time = 3)
@State(Scope.Thread)
public class StringEncode {
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@Fork(value = 3, jvmArgs = "-Xmx1g")
@Warmup(iterations = 5, time = 2)
@Measurement(iterations = 5, time = 2)
@State(Scope.Thread)
public static class WithCharset {
@Param({"US-ASCII", "ISO-8859-1", "UTF-8", "MS932", "ISO-8859-6"})
private String charsetName;
private Charset charset;
private String asciiString;
private String utf16String;
@Setup
public void setup() {
charset = Charset.forName(charsetName);
asciiString = "ascii string";
utf16String = "UTF-\uFF11\uFF16 string";
}
@Benchmark
public void encodeCharsetName(Blackhole bh) throws Exception {
bh.consume(asciiString.getBytes(charsetName));
bh.consume(utf16String.getBytes(charsetName));
}
@Benchmark
public void encodeCharset(Blackhole bh) throws Exception {
bh.consume(asciiString.getBytes(charset));
bh.consume(utf16String.getBytes(charset));
}
}
private String asciiDefaultString;
private String utf16DefaultString;
@Setup
public void setup() {
asciiDefaultString = "ascii string";
utf16DefaultString = "UTF-\uFF11\uFF16 string";
}
@Benchmark
public void encodeDefault(Blackhole bh) throws Exception {
bh.consume(asciiDefaultString.getBytes());
bh.consume(utf16DefaultString.getBytes());
}
}