.Net core之Log4net、Nlog简单性能测试
比较log4net、nlog的文件写入性能（.netcore环境），涉及代码和配置如有不正确的地方，还请批评指正。
测试环境
开发工具： Vsual Studio 2017 15.3
框架版本: .net core 2.0
操作系统：window10 Enterprise 1703
硬件配置：CPU I3-4170 3.7GHz，内存 8G，固态硬盘
日志组件
测试用例
1.不启用Buffer，连续插入20万行字符串到文件，单文件最大1MB。
2.启用Buffer为100，连续插入20万行字符串到文件，单文件最大1MB。
测试方法
xunit单元测试。
测试代码
using System; using System.Diagnostics; using System.IO; using Xunit; using Xunit.Abstractions; namespace Demo.Logging.Tests { /// <summary> /// Log4net、Nlog日志文件写入对比 /// </summary> public class BigDataTest { private readonly ITestOutputHelper output; public BigDataTest(ITestOutputHelper outputHelper) { output = outputHelper; } /// <summary> /// 使用Log4net连续插入20W行字符串 /// </summary> [Fact] public void Log4netTest() { log4net.Repository.ILoggerRepository repository = log4net.LogManager.CreateRepository("NETCoreRepository"); var fileInfo = new FileInfo("config/log4net.config"); log4net.Config.XmlConfigurator.Configure(repository, fileInfo); log4net.Config.BasicConfigurator.Configure(repository); log4net.ILog log = log4net.LogManager.GetLogger(repository.Name, "NETCorelog4net"); var total = 200000; var sw = new Stopwatch(); sw.Start(); for (int i = 0; i < total; i++) { log.Info("log4 bigdata test: " + i); } sw.Stop(); log.Info($"total: {total}, Elapsed:{sw.ElapsedMilliseconds}"); output.WriteLine($"Log4net测试 total: {total}, Elapsed:{sw.ElapsedMilliseconds}"); } /// <summary> /// 使用Nlog连续插入20W行字符串 /// </summary> [Fact] public void NlogTest() { NLog.Logger log = NLog.LogManager.GetCurrentClassLogger(); var total = 200000; var sw = new Stopwatch(); sw.Start(); for (int i = 0; i < total; i++) { log.Info("nlog bigdata test: " + i); } sw.Stop(); log.Info($"total: {total}, Elapsed:{sw.ElapsedMilliseconds}"); output.WriteLine($"NLog测试 total: {total}, Elapsed:{sw.ElapsedMilliseconds}"); } } }
测试用例一：不启用缓存，连续插入20W行
1.Log4net
配置
log4net.config
<?xml version="1.0" encoding="utf-8" ?> <configuration> <!-- This section contains the log4net configuration settings --> <log4net> <appender type="log4net.Appender.RollingFileAppender"> <file value="logfile/" /> <appendToFile value="true" /> <rollingStyle value="Composite" /> <staticLogFileName value="false" /> <datePattern value="yyyyMMdd'.log'" /> <maxSizeRollBackups value="10" /> <maximumFileSize value="1MB" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date | %message%newline" /> </layout> </appender> <!-- Setup the root category, add the appenders and set the default level --> <root> <level value="ALL" /> <appender-ref ref="RollingLogFileAppender" /> </root> </log4net> </configuration>
测试结果
输出日志内容：
2017-09-11 19:38:02,276 | log4 bigdata test: 0
2017-09-11 19:38:02,279 | log4 bigdata test: 1
... ...
... ...
2017-09-11 19:38:02,279 | log4 bigdata test: 199998
2017-09-11 19:38:02,279 | log4 bigdata test: 199999
Log4net耗时：
写入行数：200000, 毫秒数：7749
2.Nlog
配置
nlog.config
<?xml version="1.0" encoding="utf-8" ?> <nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" autoReload="true" internalLogLevel="Warn" internalLogFile="internal-nlog.txt"> <!-- define various log targets --> <targets> <!-- write logs to file --> <target xsi:type="File" fileName="logs/nlog-own-${shortdate}.log" layout="${longdate} | ${message}" archiveAboveSize="1048576"/> </targets> <rules> <logger minlevel="Trace" writeTo="ownFile-web" /> </rules> </nlog>
测试结果
输出日志内容：
2017-09-11 19:38:02,276 | nlog bigdata test: 0
2017-09-11 19:38:02,279 | nlog bigdata test: 1
......
......
2017-09-11 19:38:02,279 | nlog bigdata test: 199998
2017-09-11 19:38:02,279 | nlog bigdata test: 199999
Nlog耗时：
写入行数：200000, 毫秒数：104468
测试用例二：启用Buffer，连续插入20W行
1.Log4net
配置 log4net.config
...... <log4net> <appender type="log4net.Appender.RollingFileAppender"> <bufferSize value="100" /> ......
耗时：Log4net写入行数：200000, 毫秒数：4672
2.Nlog
配置
nlog.config