Profiling with AspectJ
======================

 This paper investigates whether AspectJ can be used for efficient
profiling of Java programs.  Profiling differs from other applications
of AOP (e.g. tracing), since it necessitates efficient and often
complex interactions with the target program.  As such, it was
uncertain whether AspectJ could achieve this goal.  Therefore, we
investigate four common profiling problems (heap usage, object
lifetime, wasted time and time-spent) and report on how well AspectJ
handles them.  For each, we provide an efficient implementation,
discuss any trade-offs or limitations and present the results of an
experimental evaluation into the costs of using it.  Our conclusion is
that, while there are some minor language issues to be resolved,
AspectJ does offer an efficient platform for profiling.