Performance tuning starts from the day the application deployment stage begins. One may ask, as the application is only in the development phase, why do we need to do performance tuning now?
At the time of the application development, we are in the state to define the architecture of the application, how the application is going to perform in reality, and how many resources are required for an application. There are no predefined steps for performance tuning. But there are certain thumb rules which all administrators should follow for performance tuning.
The following figure shows the process flow for performance tuning:
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