Performance Tuning

Performance tuning is as much an art as it is a science. Tune one parameter for increased performance and you may degrade three others in the process. Chackett Consulting has extensive experience using a very wide variety of tools for managing and tuning for performance.
Some of the tools we implement include:

• OS tools such as vmstat iostat netstat and memstat
  
• The SE Toolkit by Adrian Cockroft and Adrian Pettit
• Orca (Built on the Orcallator)
• Load tools such as LoadRunner and WinRunner from Mercury Interactive

A typical performance tuning exercise will investigate various subsystems:

• The kernel
  
• The disk subsystem (I/O)
• The memory subsystem (paging and swapping)
• The TCP/IP stack (NIC bottlenecks and stack queues)