What are your tryingto maximize/minimize● What is the goal?● Work systemically● Optimization needs to be a continuous process● Be able to back out changes!!!!● Really think
Who said?"What is a system? A system is a network ofinterdependent components that work together totry to accomplish the aim of the system. A systemmust have an aim. Without an aim, there is nosystem. The aim of the system must be clear toeveryone in the system. The aim must includeplans for the future. The aim is a value judgment.(We are of course talking here about a man-made system.)”
Must have an aim W. Edwards ● What is the Demming aim of your LAMP stack? ● Hopefully not ready, fire, aim
Yogi BerraIf you dont know where you are going, you might wind up someplace else.
Define● What are your norms – Avg/Min/Max times – End to end times or per section – Reasonable variances – Know your service levels
H. L. MenckenFor every complex problem there is an answer that is clear, simple, and wrong.
Costs● What is the ● What is the cost of a cost of query? Time, storage/ resources, retrieval? and/or $ ● Growth deltas
Finding problems● Outside of ● Re-norm-ing norms – New and/or – Change improved causes – New – Regression benchmark
Pipeline Pig● Pigging in the context of pipelines refers to the practice of using pipeline inspection gauges or pigs to perform various maintenance operations on a pipeline. This is done without stopping the flow of the product in the pipeline. – How could you adapt this idea for your environment?
Audit● Random● Every N – Start to finish – Section
Tools● Testing suites ● Monitoring – $$ tools – No P-N-P● Utilities, general system – Systat, iostat, ps, show user