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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.text;
/**
* @author baldersheim
* @since 5.2
*/
public class Utf8MicroBencmark {
public void benchmark(int sizeInK) {
String [] l = new String[1000];
for (int i=0; i < l.length; i++) {
l[i] = "typical ascii string" + i;
}
System.out.println("Warming up...");
utf8encode(l, 10000); // warm-up
utf8encodeFast(l, 10000);
long startTime, endTime, sum;
System.out.println("Starting benchmark ...");
startTime=System.currentTimeMillis();
sum = utf8encode(l, sizeInK);
endTime=System.currentTimeMillis();
System.out.println("Utf8 encoding " + sizeInK + "k strings took " + (endTime-startTime) + "ms generating " + sum + "bytes");
startTime=System.currentTimeMillis();
sum = utf8encodeFast(l, sizeInK);
endTime=System.currentTimeMillis();
System.out.println("Utf8 fast encoding " + sizeInK + "k strings took " + (endTime-startTime) + "ms generating " + sum + "bytes");
}
private long utf8encode(String [] l, int sizeInK) {
long sum = 0;
for (int i=0; i<1000*sizeInK; i++) {
sum += Utf8.toBytesStd(l[i%l.length]).length;
}
return sum;
}
private long utf8encodeFast(String [] l, int sizeInK) {
long sum = 0;
for (int i=0; i<1000*sizeInK; i++) {
sum += Utf8.toBytes(l[i%l.length]).length;
}
return sum;
}
public static void main(String[] args) {
new Utf8MicroBencmark().benchmark(10000);
}
}
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