source: contrib/MailArchiver/sources/vendor/mime4j/custom/benchmark/src/main/java/org/apache/james/mime4j/Base64OutputStreamBench.java @ 6785

Revision 6785, 2.5 KB checked in by rafaelraymundo, 12 years ago (diff)

Ticket #2946 - Liberado codigo do MailArchiver?. Documentação na subpasta DOCS.

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19
20package org.apache.james.mime4j;
21
22import java.io.OutputStream;
23import java.util.Random;
24
25import org.apache.commons.io.output.NullOutputStream;
26import org.apache.james.mime4j.codec.Base64OutputStream;
27
28public class Base64OutputStreamBench {
29
30    public static void main(String[] args) throws Exception {
31        byte[] data = initData(1024);
32
33        OutputStream nullOut = new NullOutputStream();
34        Base64OutputStream base64Out = new Base64OutputStream(nullOut);
35
36        // warmup
37
38        for (int i = 0; i < 2000; i++) {
39            base64Out.write(data);
40        }
41        Thread.sleep(100);
42
43        // test
44
45        long t0 = System.currentTimeMillis();
46
47        final int repetitions = 500000;
48        for (int i = 0; i < repetitions; i++) {
49            base64Out.write(data);
50        }
51        base64Out.close();
52
53        long dt = System.currentTimeMillis() - t0;
54        long totalBytes = data.length * (long) repetitions;
55
56        double mbPerSec = (totalBytes / 1024.0 / 1024) / (dt / 1000.0);
57
58        System.out.println(dt + " ms");
59        System.out.println(totalBytes + " bytes");
60        System.out.println(mbPerSec + " mb/sec");
61    }
62
63    private static byte[] initData(int size) {
64        Random random = new Random(size);
65        byte[] data = new byte[size];
66        random.nextBytes(data);
67        return data;
68    }
69
70}
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