Sampling profiler for Python programs
Benchmarking tool
7 Generic TSQL Scripts to Troubleshoot SQL Performance Problems
Perfmon PMU Collecting tool
Software Monitoring Framework
Your application log analysis tool.
C/C++ function instrumentation (AOP, exception/stack tracing, GC)
Open|SpeedShop is an open source multi platform Linux performance tool
Java performance analysis tool
Profiler for Oracle extended SQL trace files
Visualization of Java thread dumps
Simple and powerful tool for benchmarking your code's efficiency
Simple, neat and powerful tool for loading and managing JS scripts
IO statistics for Unix like OSes
XDebug profiles viewer
QProf is the visual tool for profiling text information.