I have developed an application using Liferay 5.2.3 and its working fine.While doing performance testing, the application takes nearly 365% of cpu usage.Even though we have tested plain liferay bundle it took more than 290% of cpu usage. The code base is not that much heavy(there is no high business logic ) and we are following liferay's performance tuning steps like fast loading of images,css,disabled unused filters in liferay and using hibernate calls to hit database.The application is running in the system which is configured with the configuration mention in liferay specification. Eventhough we have followed the steps we couldn't reduce the cpu usage percentage.
Please suggest us to resolve this .
Thanks in advance.