Today most developers look at the performance considerations after launching the application in Production which is primary reason failures of lot of applications. Performance requirements should be considered from the initial design all the way to production launch. This series is going to describe how high performance can be achieved on the client side (Browsers), Server Side (App Server) and on the DB.
This first part will give some basic tips on improving client side tuning:
1. Reduce the round trips to the server by combining multiple JS files into one JS file.
2. Reduce the round trips to the server by combining the multiple CSS files to single CSS file.
3. Set Expires header attribute on everything you can into future based on your needs. This tells the browser it is okay to not revalidate on every request, which can add latency of at least one round-trip per object per page load for no reason. Particularly ensure directory where images are stored has Expires Header attributes set to enable the Browser caching. Just by reducing the 304 status calls to your web server would minimize the load on the web server and improves the page response...
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