One of the most important aspects of successful project realization is system performance. Everybody knows that Web users often face a long wait when downloading web pages. What is the tolerable waiting time for web page download? In our opinion, a comfortable response time should be less than 2 seconds. If users have to wait more than 4 seconds, they usually go away. Performance issues is the most difficult subject in a big data portal or intranet. System architecture affects performance. Portals with a lot of images, movies, and audio should have a different architecture compared to intranets, as these portals have a lot of users who log in very often at the same time.
Fortunately, there are some general rules that help improve Liferay's performance: