Today I noticed that my integration tests with nhibernate were runnning very slow on the build server. Very slow meaning 1 hour to run while they run for 6 minutes on my dev machine all 840 of them. Something was different.

I am using Finalbuilder 5.5 on my build machine and that uses the nunit console to do the dirty work for it.

So I tried running it in the nuint gui tool and there too it was slow.

So I clicked a bit on the tabs, one never knows when one might get lucky and low and behold I was lucky. The Log tab of the GUi builder was getting lots of work.

I know my readers (all 3 of you) prefer pictures over words so here is a picture.

Apparently nunit 2.4.6 has a config somewhere that says log4net should use debug level logging. Which slows down nhibernate like never before.

So I copy pasted my regular log4net nhibernate appender and other config things into the app.config of the test project

```xml <configSections> <section name=“log4net” type=“log4net.Config.Log4NetConfigurationSectionHandler,log4net” /> </configSections>

<!– This section contains the log4net configuration settings –> <log4net debug=“false”>

   <appender name="rollingFile" type="log4net.Appender.RollingFileAppender,log4net" >

  <param name="File" value="nHibernate.log" />
  <param name="AppendToFile" value="true" />
  <param name="RollingStyle" value="Date" />
  <param name="DatePattern" value="yyyy.MM.dd" />
  <param name="StaticLogFileName" value="true" />
  <param name="maxSizeRollBackups" value="10" />

  <layout type="log4net.Layout.PatternLayout,log4net">
    <param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
  </layout>
</appender>

<!-- Setup the root category, add the appenders and set the default priority -->

<root>
  <level value="Info"/>
  <appender-ref ref="rollingFile"/>
</root>

<logger name="NHibernate">
  <level value="Warn" />
  <appender-ref ref="rollingFile"/>
</logger>

<logger name="NHibernate.Loader.Loader">
  <level value="Warn" />
  <appender-ref ref="rollingFile"/>
</logger>

</log4net>``` and added this to the first test, just to check if it was faster.

vbnet log4net.Config.XmlConfigurator.Configure() And now my integration tests are back to their normal slow self.

I think this problem will not occur in nunit 2.5 and above since they now use a different logger then log4net.