/*
* Copyright ( c ) 2009 , 2012 , 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
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*/
import java.util.*;
import java.nio.*;
import java.nio.charset.*;
import java.util.concurrent.*;
import java.util.regex.Pattern;
public class StrCodingBenchmarkDB extends StrCodingBenchmark {
public static void main(String[] args) throws Throwable {
final int itrs = Integer.getInteger("iterations" , 100000 );
//final int itrs = Integer.getInteger("iterations", 12);
final int size = Integer.getInteger("size" , 2048 );
final int subsize = Integer.getInteger("subsize" , 128 );
final int maxchar = Integer.getInteger("maxchar" , 128 );
final String regex = System.getProperty("filter" );
final Pattern filter = (regex == null ) ? null : Pattern.compile(regex);
final boolean useSecurityManager = Boolean .getBoolean("SecurityManager" );
if (useSecurityManager)
System.setSecurityManager(new PermissiveSecurityManger());
final Random rnd = new Random();
String[] csns = new String[] {
"Big5" ,
"Johab" ,
"EUC_CN" ,
"EUC_KR" ,
"MS932" ,
"MS936" ,
"MS949" ,
"MS950" ,
"GBK" ,
"Big5_HKSCS" ,
"Big5_HKSCS_2001" ,
"Big5_Solaris" ,
"MS950_HKSCS" ,
"MS950_HKSCS_XP" ,
"IBM1364" ,
"IBM1381" ,
"IBM1383" ,
"IBM930" ,
"IBM933" ,
"IBM935" ,
"IBM937" ,
"IBM939" ,
"IBM942" ,
"IBM943" ,
"IBM948" ,
"IBM949" ,
"IBM950" ,
"IBM970" ,
};
ArrayList<long []> sum = new ArrayList<>();
for (final String csn : csns) {
final Charset cs = Charset.forName(csn);
List<Integer> cps = new ArrayList<>(0 x4000);
int off = 0 ;
int cp = 0 ;
int n = 0 ;
CharsetEncoder enc = cs.newEncoder();
while (cp < 0 x10000 && n < cps.size()) {
if (enc.canEncode((char )cp)) {
cps.add(cp);
n++;
}
cp++;
}
Collections.shuffle(cps);
char [] ca = new char [cps.size()];
for (int i = 0 ; i < cps.size(); i++)
ca[i] = (char )(int )cps.get(i);
System.out.printf("%n--------%s---------%n" , csn);
for (int sz = 8 ; sz <= 2048 ; sz *= 2 ) {
System.out.printf(" [len=%d]%n" , sz);
final char [] chars = Arrays.copyOf(ca, sz);
final String str = new String(chars);
final byte [] bs = str.getBytes(cs);
Job[] jobs = {
new Job("String decode: csn" ) {
public void work() throws Throwable {
for (int i = 0 ; i < itrs; i++)
new String(bs, csn);
}},
new Job("String decode: cs" ) {
public void work() throws Throwable {
for (int i = 0 ; i < itrs; i++)
new String(bs, cs);
}},
new Job("String encode: csn" ) {
public void work() throws Throwable {
for (int i = 0 ; i < itrs; i++)
str.getBytes(csn);
}},
new Job("String encode: cs" ) {
public void work() throws Throwable {
for (int i = 0 ; i < itrs; i++)
str.getBytes(cs);
}},
};
sum.add(time(jobs));
}
}
}
}
Messung V0.5 in Prozent C=92 H=95 G=93
¤ Dauer der Verarbeitung: 0.4 Sekunden
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