Performance analysis is intended to find out all bottlenecks and provide a recommendations for their fixing with minimal cost and human efforts.
This service includes review of your code, but additionally the performance measurements and profiling are performed.
OKTET Labs has a tool for network protocols testing which includes stress testing and performance measurements functionality. OKTET Labs provides this tool for its customers under terms of GNU Public License v2. Moreover, OKTET Labs engineers can create a test suite according to customer requirements.