ViennaProfiler allows to compare execution times of full programs or parts of a program. Execution times are stored in a MySQL database and conveniently analyzed via a web-interface. A C++ client API is provided, other languages can also be used.
An implementation of the Open Group's Application Response Measurement (ARM) Version 4 standard. The ARM standard describes a means of breaking an application down into it's constituent transactions, and measuring response time across multiple tiers.