As a JVM/GC performance engineer – I always ask pertinent questions such as – what are performance expectations of the product by the stakeholders? what are the important metrics?, what are the tuning goals?, etc. and then I discuss tradeoffs and finally establish tuning goals.
Performance tuning is a methodical and an iterative process. It is imperative to have a performance plan coexist with a product development plan. A performance plan not only serves to document the requirements but also feeds into designing the performance experiments and helps in providing a clear understanding of the performance infrastructural needs.
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When you are faced with the challenge of tuning JVM, you can find a wide variety information. Yet, almost always the information is rather specific in the type of tuning, or specific to a type of problem. Seldom can you find information that tells abstracts the details into a higher level and simplifies it into … Read More