CHAPTeR 9 DXP PeRfORMANCe OPTIMIzATION ^ƉƌŝŶƚϬ ^ƉƌŝŶƚϭ^ƉƌŝŶƚϮ^ƉƌŝŶƚϯ ͻ&ŝŶĂůŝnjĞƌĞƋƵŝƌĞŵĞŶƚƐĂŶĚ ƚĞƐƚĞŶǀŝƌŽŶŵĞŶƚƵƐĞĚĨŽƌ ZĞƋƵŝƌĞŵĞŶƚƐ ƚĞƐƚŝŶŐ ŶĂůLJƐŝƐ ͻ&ŝŶĂůŝnjĞůŽĂĚƌĞƋƵŝƌĞŵĞŶƚƐ ͻ&ŝŶĂůŝnjĞE&ZĂŶĚƋƵĂůŝƚLJ ƌĞƋƵŝƌĞŵĞŶƚƐ ĞůŝǀĞƌĂďůĞƐ dĞƐƚƉůĂŶǁŝƚŚŚŝŐŚͲůĞǀĞů ĂƉƉƌŽĂĐŚ ͻƌĞĂƚĞƚĞƐƚƐĐƌŝƉƚƐĨŽƌ ͻƌĞĂƚĞƚĞƐƚƐĐƌŝƉƚƐĨŽƌ ͻƌĞĂƚĞƚĞƐƚƐĐƌŝƉƚƐ ĞƐŝŐŶ ^ƉƌŝŶƚϭ ^ƉƌŝŶƚϮнƌĞǁŽƌŬŽĨ ĨŽƌ^ƉƌŝŶƚϯнƌĞǁŽƌŬ ͻWĞƌĨŽƌŵĚƌLJƌƵŶƐ ^ƉƌŝŶƚϭ ŽĨ^ƉƌŝŶƚϭΘϮ ͻWĞƌĨŽƌŵĚƌLJƌƵŶƐ ͻWĞƌĨŽƌŵĚƌLJƌƵŶƐ ĞůŝǀĞƌĂďůĞƐ WĞƌĨŽƌŵĂŶĐĞdĞƐƚ^ĐƌŝƉƚƐ ͻdžĞĐƵƚĞƉĞƌĨŽƌŵĂŶĐĞƚĞƐƚƐ džĞĐƵƚĞĂŶĚ ͻDŽŶŝƚŽƌƐĞƌǀĞƌŝŶĨƌĂƐƚƌƵĐƚƵƌĞ ZĞƉŽƌƚ ͻŽůůĞĐƚƉĞƌĨŽƌŵĂŶĐĞŵĞƚƌŝĐƐ ͻZĞƉŽƌƚƌĞƐƵůƚƐ ĞůŝǀĞƌĂďůĞƐ ZĞƉŽƌƚƐ Figure 9-1. Various sprints for performance testing We have elaborated categories of performance testing as follows: Requirement Analysis During requirement analysis, we identify the detailed requirements related to performance testing. The requirements are obtained through stakeholder interviews and requirements documents. Requirements analysis is done in sprint 0 so that the test plan will be used in subsequent sprints. Chapter 2 covers requirement analysis in more detail. The main objectives during this stage are: • Identify performance test requirement/expectations. • Identify all the performance service level agreements (SLAs) for page response times, transaction completion time, and such. • Identify and finalize load numbers such as maximum concurrent users, average session time, maximum content size, and such. • Define an approach for performance test execution. 239