olemus
sõltub kontekstist

näiteid
ISO/IEC/IEEE 24765, performance testing:
type of testing conducted to evaluate the degree to which a test item accomplishes its designated functions within given constraints of time and other resources

ülevaateid
https://www.testingxperts.com/blog/performance-testing-guide/

http://www.perftestplus.com/resources/perf_intro_ppt.pdf

https://en.wikipedia.org/wiki/Software_performance_testing

https://stackify.com/ultimate-guide-performance-testing-and-software-testing/

https://www.perfmatrix.com/what-is-performance-testing/