.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。
本文详解.Net core2.0日志组件Log4net、Nlog简单性能测试到此结束。时不时给自我一个能够沉默的理由来淡定人生。小编再次感谢大家对我们的支持!