This is the final part of the comprehensive description of Firebird 5 features, it is devoted to the brand new feature: SQL Profiler. It became much easier to find performance bottlenecks in complex stored procedures and identify SQL code responsible for slowness.
Read it here:
https://ib-aid.com/en/articles/detailed-new-features-of-firebird-5-part-6-profiling
Soon we will publish the revised version of "Detailed New Features of Firebird 5" in the form of a consistent book.