Simple log4j config

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
 
<log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/'>
 
	<appender name="DefaultConsoleAppender" class="org.apache.log4j.ConsoleAppender">
       <param name="File" 			value="d:/logs/myapp.log" />
       <param name="Append" 		value="false" />
       <param name="DatePattern"	value="'.'yyyyMMdd" />
       <layout class="org.apache.log4j.PatternLayout">
         <param name="ConversionPattern" value="[%d] [%-5p] [%C.%M] [%F:%L] -> [%m]%n"/>
       </layout>
	</appender>
 
	<appender name="FILE" class="org.apache.log4j.FileAppender">
       <param name="File" 			value="d:/logs/myapp.log" />
       <param name="Append" 		value="false" />
       <param name="DatePattern"	value="'.'yyyyMMdd" />
       <layout class="org.apache.log4j.PatternLayout">
         <param name="ConversionPattern" value="[%d] [%-5p] [%M] [%F:%L] -> [%m]%n"/>
       </layout>
	</appender>
 
	<appender name="PERFORMANCE_FILE" class="org.apache.log4j.FileAppender">
       <param name="File" 			value="d:/logs/myapp_performance.log" />
       <param name="Append" 		value="false" />
       <layout class="org.apache.log4j.PatternLayout">
         <param name="ConversionPattern" value="[ %d ] [ %M ] -> %m%n"/>
       </layout>
	</appender>
 
	<category name="MYAPP_PERFORMANCE">
		<priority value="debug"/>
		<appender-ref ref="PERFORMANCE_FILE" />
	</category>
 
	<root>
	   <priority value ="debug" />
   	 <appender-ref ref="FILE" />
	</root>
 
</log4j:configuration>
 
Call:
private Logger perflog = Logger.getLogger("MYAPP_PERFORMANCE");