Monday, June 29, 2009

Performance Testing - Stress testing 2

Performance Testing - Stress testing 2

Stress testing :is subjecting a system to an unreasonable load while

denying it the resources (e.g., RAM, disc, mips, interrupts, etc.)

needed to process that load. The idea is to stress a system to the

breaking point in order to find bugs that will make that break

potentially harmful. The system is not expected to process the

overload without adequate resources, but to behave (e.g., fail) in a

decent manner (e.g., not corrupting or losing data). Bugs and failure

modes discovered under stress testing may or may not be repaired

depending on the application, the failure mode, consequences, etc.

The load (incoming transaction stream) in stress testing is often

deliberately distorted so as to force the system into resource

depletion.



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