December 2014
Intermediate to advanced
278 pages
6h 42m
English
Content preview from The Art of Application Performance Testing, 2nd Edition
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Chapter 3. The Fundamentals of Effective Application Performance Testing
For the want of a nail . . .
Anonymous
After our brief discussion of the definition of good and bad performance and the reasons for performance testing in Chapters 1 and 2, this chapter focuses on what is required to performance test effectively—that is, the prerequisites. The idea of a formal approach to performance testing is still considered novel by many, although the reason is something of a mystery, because (as with any kind of project) failing to plan properly will inevitably lead to misunderstandings and problems. Performance testing is no exception. If you don’t plan your software development projects with performance testing in mind, then you expose yourself to a significant risk that your application will never perform to expectation. As a starting point with any new software development project, you should ask the following questions:
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How many end users will the application need to support at release? After 6 months, 12 months, 2 years?
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Where will these users be located, and how will they connect to the application?
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How many of these users will be concurrent at release? After 6 months, 12 months, 2 years?
These answers then lead to other questions, such as the following:
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How many and what specification of servers will I need for each application tier?
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Where should these servers be hosted?
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What sort of network infrastructure do I need to provide?
You may not be able to answer ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.