Analyzing the Portlet Performance in liferay

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Set the following log in the tomcat/lib/META-INF/portal-log4j-ext.xml

<category name="com.liferay.portlet.InvokerPortletImpl">
       <priority value="DEBUG" />
    </category>
This will cause the performance of each portlet render to be logged, for example: 
  • render for welcomeportlet_WAR_welcomeportlet takes 1 ms
  • render for employmentportlet_WAR_linksportlet takes 80 ms

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