Performance impact of using aop

Question

We have started to use spring aop for cross cutting aspects of our application (security & caching at the moment).

My manager worries about the performance impa

Answer 1

If performance is going to be a concern, we have used AspectJ to great effect.

Because it uses bytecode weaving (compile time vs. runtime makes quite the difference) it's one of the fastest AOP frameworks out there. See: AOP Benchmarks