I don't know if this is the best place, but I have no rights (is it ok?)
to comment directly in JBSEAM-3968 (Integrate perf4j into Seam)  and
that subject was already discussed on that mailing list.
There was a problem with Perf4j  (utility for calculating and
displaying performance statistics) to integrate it with Seam - it
supports only AspectJ. Luckily, it was fixed in version 0.9.13.
Together with Alexander Devine (Perf4j's author) we were redesigned the
AOP model in Perf4j and starting with version 0.9.13, Perf4j support -
in theory - every AOP framework. As a proof of concept Alex wrote
support for EJB interceptors and I created an add-on for Seam Framework
2.2 - Seam-Perf4j  which seamlessly  integrates with applications
There are a few things to improve, but feel free to take a look and give
 - https://jira.jboss.org/jira/browse/JBSEAM-3968
 - http://perf4j.codehaus.org/
 - http://seam-perf4j.sf.net/
 - http://seam-perf4j.sf.net/docs.php