mirror of
https://github.com/lucaspalomodevelop/txtmark.git
synced 2026-03-12 23:37:22 +00:00
Added basic benchmark, run with 'mvn -Dtest=Benchmark test'.
This commit is contained in:
René Jeschke
parent
c73396f48d
commit
4a83662310
362
src/test/java/com/github/rjeschke/txtmark/Benchmark.java
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362
src/test/java/com/github/rjeschke/txtmark/Benchmark.java
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/*
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* Copyright (C) 2011-2015 René Jeschke <rene_jeschke@yahoo.de>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.github.rjeschke.txtmark;
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import java.util.Random;
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import org.junit.Test;
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public class Benchmark
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{
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// random seed to use for text generation, >= 0 sets seed, < 0 uses random
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private static final long SEED = 0;
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// number of runs
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private static final int RUNS = 8;
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// perform an additional (hidden) warm-up run
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private static final boolean WARMUP_RUN = true;
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private static final int MIN_WORD_LENGTH = 3;
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private static final int MAX_WORD_LENGTH = 10;
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private static final int MAX_LINE_LENGTH = 80;
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private static final int LINES_PER_PARAGRAPH = 20;
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// number of paragraphs to create
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private static final int NUM_PARAGRAPHS = 30;
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// scratch area
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private static int REF_COUNTER = 0;
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private static String createWord(final Random rnd, final int minLength, final int maxLength)
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{
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final int len = rnd.nextInt(maxLength - minLength) + minLength;
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final char[] ret = new char[len];
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for (int i = 0; i < len; i++)
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{
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ret[i] = (char)('a' + rnd.nextInt(26));
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}
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return new String(ret);
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}
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private interface WLDecorator
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{
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public String decorate(String word);
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}
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private interface ParagraphDecorator
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{
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public void startParagraph(StringBuilder out);
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public void endParagraph(StringBuilder out);
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}
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private final static String createText(
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final WLDecorator wordDecorator,
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final WLDecorator lineDecorator,
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final ParagraphDecorator paragraphDecorator)
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{
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final Random rnd = new Random();
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if (SEED >= 0)
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{
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rnd.setSeed(SEED);
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}
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final StringBuilder sb = new StringBuilder();
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final StringBuilder line = new StringBuilder();
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boolean initParagraph = true;
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for (int lineLength = 0, lineCount = 0, paraCount = 0; paraCount < NUM_PARAGRAPHS;)
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{
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if (initParagraph)
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{
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if (paragraphDecorator != null)
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{
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paragraphDecorator.startParagraph(sb);
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}
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initParagraph = false;
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}
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final String word = createWord(rnd, MIN_WORD_LENGTH, MAX_WORD_LENGTH);
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final String decorated = wordDecorator != null ? wordDecorator.decorate(word) : word;
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lineLength += word.length();
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line.append(decorated);
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if (lineLength < MAX_LINE_LENGTH)
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{
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lineLength++;
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line.append(' ');
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}
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else
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{
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if (lineDecorator != null)
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{
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sb.append(lineDecorator.decorate(line.toString()));
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}
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else
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{
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sb.append(line);
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}
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sb.append('\n');
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lineCount++;
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lineLength = 0;
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line.setLength(0);
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if (lineCount >= LINES_PER_PARAGRAPH)
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{
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lineCount = 0;
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sb.append('\n');
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paraCount++;
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if (paragraphDecorator != null)
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{
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paragraphDecorator.endParagraph(sb);
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}
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initParagraph = true;
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}
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}
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}
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return sb.toString();
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}
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private final static WLDecorator EMPHASIS = new WLDecorator()
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{
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@Override
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public String decorate(final String word)
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{
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return "*" + word + "*";
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}
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};
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private final static WLDecorator STRONG = new WLDecorator()
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{
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@Override
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public String decorate(final String word)
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{
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return "**" + word + "**";
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}
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};
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private final static WLDecorator EMPHASIS_STRONG = new WLDecorator()
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{
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@Override
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public String decorate(final String word)
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{
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return "***" + word + "***";
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}
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};
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private final static WLDecorator INLINE_CODE = new WLDecorator()
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{
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@Override
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public String decorate(final String word)
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{
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return "`" + word + "`";
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}
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};
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private final static WLDecorator LINKS = new WLDecorator()
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{
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@Override
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public String decorate(final String word)
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{
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return "[" + word + "](http://www.example.com/" + word + ")";
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}
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};
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private final static WLDecorator REF_LINKS = new WLDecorator()
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{
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@Override
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public String decorate(final String word)
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{
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final int id = REF_COUNTER++;
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return "[" + word + "][id" + id + "]";
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}
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};
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private final static ParagraphDecorator REF_LINKS_PARA = new ParagraphDecorator()
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{
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private int startId = 0;
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@Override
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public void startParagraph(final StringBuilder out)
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{
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this.startId = REF_COUNTER;
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}
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@Override
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public void endParagraph(final StringBuilder out)
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{
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for (int i = this.startId; i < REF_COUNTER; i++)
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{
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out.append("[id");
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out.append(i);
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out.append("]: http://www.example.com/");
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out.append(i);
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out.append('\n');
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}
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}
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};
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private final static WLDecorator HTML_WRAP = new WLDecorator()
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{
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@Override
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public String decorate(final String word)
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{
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return "<span>" + word + "</span>";
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}
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};
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private final static WLDecorator MANUAL_LINE_BREAKS = new WLDecorator()
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{
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@Override
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public String decorate(final String word)
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{
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return word + " ";
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}
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};
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private final static WLDecorator CODE_LINES = new WLDecorator()
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{
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@Override
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public String decorate(final String word)
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{
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return " " + word;
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}
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};
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private final static WLDecorator BLOCK_QUOTE = new WLDecorator()
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{
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@Override
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public String decorate(final String word)
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{
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return "> " + word;
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}
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};
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private static class Settings
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{
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private final WLDecorator wordDecorator;
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private final WLDecorator lineDecorator;
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private final ParagraphDecorator paragraphDecorator;
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private final String name;
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private Settings(final String name)
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{
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this(name, null, null, null);
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}
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private Settings(final String name, final WLDecorator wordDecorator)
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{
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this(name, wordDecorator, null, null);
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}
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private Settings(final String name, final WLDecorator wordDecorator, final WLDecorator lineDecorator)
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{
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this(name, wordDecorator, lineDecorator, null);
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}
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private Settings(final String name, final WLDecorator wordDecorator, final WLDecorator lineDecorator,
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final ParagraphDecorator paragraphDecorator)
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{
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this.name = name;
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this.wordDecorator = wordDecorator;
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this.lineDecorator = lineDecorator;
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this.paragraphDecorator = paragraphDecorator;
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}
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}
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private final static Settings[] SETTINGS =
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{
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new Settings("default"),
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new Settings("manual linebreaks", null, MANUAL_LINE_BREAKS),
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new Settings("emphasis", EMPHASIS),
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new Settings("strong", STRONG),
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new Settings("emphasis+strong", EMPHASIS_STRONG),
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new Settings("inline code", INLINE_CODE),
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new Settings("full links", LINKS),
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new Settings("<span> wrap", HTML_WRAP),
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new Settings("code blocks", null, CODE_LINES),
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new Settings("blockquote", null, BLOCK_QUOTE),
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new Settings("ref links", REF_LINKS, null, REF_LINKS_PARA),
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};
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private static long timedProcess(final String text)
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{
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final long t0 = System.nanoTime();
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Processor.process(text);
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final long t1 = System.nanoTime();
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return t1 - t0;
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}
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private static void runTest(final Settings settings, final int runs)
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{
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final String testText = createText(settings.wordDecorator, settings.lineDecorator, settings.paragraphDecorator);
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if (WARMUP_RUN)
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{
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System.gc();
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timedProcess(testText);
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}
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final long[] times = new long[runs];
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for (int i = 0; i < runs; i++)
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{
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System.gc();
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times[i] = timedProcess(testText);
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}
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System.out.printf("%20s |", settings.name);
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long sum = 0;
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for (int i = 0; i < runs; i++)
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{
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System.out.printf(" %8d |", times[i] / 1000);
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sum += times[i];
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}
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System.out.printf(" %8d |", sum / (runs * 1000));
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System.out.println();
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}
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@Test
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public void benchmark()
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{
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System.out.printf("%20s |", "Performance test");
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for (int i = 0; i < RUNS; i++)
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{
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System.out.printf(" %8s |", "run #" + (i + 1));
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}
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System.out.printf(" %8s |", "average");
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System.out.println();
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System.out.print("---------------------|");
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for (int i = 0; i < RUNS + 1; i++)
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{
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System.out.print("----------|");
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}
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System.out.println();
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for (final Settings s : SETTINGS)
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{
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runTest(s, RUNS);
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}
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System.out.print("---------------------|");
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for (int i = 0; i < RUNS + 1; i++)
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{
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System.out.print("----------|");
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}
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System.out.println();
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System.out.println("All times are given in milliseconds");
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}
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}
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