using System;
using System.Diagnostics;
using System.IO;
using Xunit;
using Xunit.Abstractions;
namespace Demo.Logging.Tests
{
  /// <summary>
  /// Log4net、Nlog日志文件寫入對比
  /// </summary>
  public class BigDataTest
  {
    private readonly ITestOutputHelper output;
    public BigDataTest(ITestOutputHelper outputHelper)
    {
      output = outputHelper;
    }

    /// <summary>
    /// 使用Log4net連續(xù)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測試 total: {total}, Elapsed:{sw.ElapsedMilliseconds}");
    }

    /// <summary>
    /// 使用Nlog連續(xù)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測試 total: {total}, Elapsed:{sw.ElapsedMilliseconds}");
    }

  }
}

<?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>

<?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>

......

 <log4net>
  <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
   <bufferSize value="100" />

......

......

 <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>

......