Kirk Pepperdine cofounded jClarity, a company dedicated to producing the next generation of smart performance-diagnostic tooling. In addition, he offers Java performance-related services and training. Pepperdine has been performance-tuning Java applications since 1998. Prior to that he developed applications and hardware that included small devices attached to sheep, and devices attached to supercomputing platforms. Pepperdine has written many articles and speaks regularly at conferences on the subject of performance-tuning. He helped evolve javaperformancetuning.com to be a premier resource for performance-tuning information.