Performance tuning
Most of you would have heard of the old adage "Good, Fast, Cheap - Pick any two". That adage is still true, though the scales have shifted slightly with the open source model where the software is free but does need a relevant skillset to make the best use of it. That skillset comes at a cost, and performance tuning is one area where that specialized skillset is a must-have. When you talk about performance tuning, the underlying assumption is that your system is already working, fully functional.
Figure 11.1: Good - Fast and Cheap
You are not happy with the response rates. However, that does not have to be so all the time. You can take certain key decisions that can help you build a relatively optimized system early on.
So what are the key areas for consideration? Each distributed application has to work with five major computing resources:
- Network
- Disk
- I/O
- CPU
- Memory
For an application to perform at its optimum level, it has to make sure it makes the best of all...
