详解.Net core2.0日志组件Log4net、Nlog简单性能测试

时间:2021-05-25

.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

log4net 2.0.8

nlog 5.0.0-beta10

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 name="RollingLogFileAppender" 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" name="ownFile-web" fileName="logs/nlog-own-${shortdate}.log" layout="${longdate} | ${message}" archiveAboveSize="1048576"/> </targets> <rules> <logger name="*" 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 name="RollingLogFileAppender" 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

...... <targets> <!-- write logs to file --> <default-wrapper xsi:type="BufferingWrapper" bufferSize="100"/> <target xsi:type="File" name="ownFile-web" fileName="logs/nlog-own-${shortdate}.log" layout="${longdate} | ${message}" archiveAboveSize="1048576"/> </targets>......

Nlog耗时:写入行数:200000, 毫秒数:1605

总结

日志组件 版本 环境 用例 (启用Buffer=100)毫秒数 (不启用Buffer)毫秒数 log4net 2.0.8 .netcore 2.0 20W行文件写入 4672 7749 nlog 5.0.0-beta10 .netcore 2.0 20W行文件写入 1605 104468

代码和配置文件都在上边了,不知道不同配置的机器结果如何。

大家又会倾向于nlog还是log4net? log4net无论是否启用buffer,耗时都比较稳定,10秒以内,前后差距1.66倍;nlog在启用buffer前后,耗时差距65倍 ,未启用buffer竟然需要100多秒,虽然在启用buffer后仅1.605秒。

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。

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