slf4j-api/src/test/java/org/slf4j/helpers/MessageFormatterPerfTest.java

/**
 * Copyright (c) 2004-2011 QOS.ch
 * All rights reserved.
 *
 * Permission is hereby granted, free  of charge, to any person obtaining
 * a  copy  of this  software  and  associated  documentation files  (the
 * "Software"), to  deal in  the Software without  restriction, including
 * without limitation  the rights to  use, copy, modify,  merge, publish,
 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
 * permit persons to whom the Software  is furnished to do so, subject to
 * the following conditions:
 *
 * The  above  copyright  notice  and  this permission  notice  shall  be
 * included in all copies or substantial portions of the Software.
 *
 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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package org.slf4j.helpers;

import java.text.MessageFormat;

import junit.framework.TestCase;
import org.junit.Ignore;

@Ignore
public class MessageFormatterPerfTest extends TestCase {

    Integer i1 = new Integer(1);
    Integer i2 = new Integer(2);
    static long RUN_LENGTH = 100 * 1000;
    //
    static long REFERENCE_BIPS = 48416;

    public MessageFormatterPerfTest(String name) {
        super(name);
    }

    protected void setUp() throws Exception {
    }

    protected void tearDown() throws Exception {
    }

    public void XtestJDKFormatterPerf() {
        jdkMessageFormatter(RUN_LENGTH);
        double duration = jdkMessageFormatter(RUN_LENGTH);
        System.out.println("jdk duration = " + duration + " nanos");
    }

    public void testSLF4JPerf_OneArg() {
        slf4jMessageFormatter_OneArg(RUN_LENGTH);
        double duration = slf4jMessageFormatter_OneArg(RUN_LENGTH);
        System.out.println("duration=" + duration);
        long referencePerf = 36;
        BogoPerf.assertDuration(duration, referencePerf, REFERENCE_BIPS);
    }

    public void testSLF4JPerf_TwoArg() {
        slf4jMessageFormatter_TwoArg(RUN_LENGTH);
        double duration = slf4jMessageFormatter_TwoArg(RUN_LENGTH);
        long referencePerf = 60;
        BogoPerf.assertDuration(duration, referencePerf, REFERENCE_BIPS);
    }

    public double slf4jMessageFormatter_OneArg(long len) {
        long start = System.nanoTime();
        for (int i = 0; i < len; i++) {
            final FormattingTuple tp = MessageFormatter.format("This is some rather short message {} ", i1);
            tp.getMessage();
            tp.getArgArray();
            tp.getThrowable();

            MessageFormatter.format("This is some rather short message {} ", i1);
        }
        long end = System.nanoTime();
        return (end - start) / (1000 * 1000.0);
    }

    public double slf4jMessageFormatter_TwoArg(long len) {
        long start = System.nanoTime();
        for (int i = 0; i < len; i++) {
            final FormattingTuple tp = MessageFormatter.format("This is some {} short message {} ", i1, i2);
            tp.getMessage();
            tp.getArgArray();
            tp.getThrowable();
        }
        long end = System.nanoTime();
        return (end - start) / (1000 * 1000.0);
    }

    public double jdkMessageFormatter(long len) {
        @SuppressWarnings("unused")
        String s = "";
        s += ""; // keep compiler happy
        long start = System.currentTimeMillis();
        Object[] oa = new Object[] { i1 };
        for (int i = 0; i < len; i++) {
            s = MessageFormat.format("This is some rather short message {0}", oa);
        }
        long end = System.currentTimeMillis();
        return (1.0 * end - start);
    }

}