Introduction Caching is a crucial performance tuning strategy, especially your system has high read to write ratio. You can perform caching strategy at different levels from client browser cache all the way to disk cache at server side. Lets take a brief look at where we can cache based on the invocation path for a [...]

Most companies I have worked for use Tomcat as Servlet Container. It is de facto standard just like how Apache been used as Web Server. However, most of us just drag our war file to the webapp folder and use Tomcat with all the settings as default out of the box. It works fine in [...]

Understand Query Processing Basic Before tuning your slow query, you better understand how your database process your query first. Here are the steps: Each client connections gets its own thread within the server process (MySQL). The connetion’s queries execute within that single thread, which in turn resides on one core or CPU. The database server [...]