Posted by Albert Gareev on Nov 29, 2016
Another day, another good question on Quora. For years, I’ve been answering “what is performance testing?” in a variety of ways. In a technical way, I tell about process, tools, scripts, measurements, and analysis. More often though, I need to convey the concept to a non-technical or at least not very technical person. Finding a […] ...
Posted by Albert Gareev on Apr 20, 2016
This article was published on StickyMinds – “Hidden Parts of the Performance Equation”, April, 2016. The Performance Equation Many teams decide to put together a “test bed” of servers and network infrastructure, develop some scripts simulating user requests, run the whole thing against the application, and see if they can satisfy the business requirements. And […] ...
Posted by Albert Gareev on Sep 05, 2012
Parent page: Load/Performance Testing with NeoLoad In a few of my recent posts I mentioned importance of avoiding unrealistic stress in test sessions. – And I also mentioned that there are situations when we indeed want to explore behavior of the application being under stressing load. But first of all, let’s agree on some definitions. […] ...
Posted by Albert Gareev on Aug 22, 2012
Parent page: Load/Performance Testing with NeoLoad Providing irrelevant or misleading test results is worse than not providing test results at all. When using automation, testers must be twice as careful about relevance of tests – or maybe ten more times, hundred times – depending on how much judgment is passed on to mindless side. Load […] ...
Posted by Albert Gareev on Aug 15, 2012
Parent page: Load/Performance Testing with NeoLoad Load scripts are typically linear: they’re intended to generate a load, not to cover sophisticated logical scenarios checked by functional automation and explored by skilled testers. For this reason, load scripts rarely contain complex code branches and loops. Yet there are functional scenarios that are part of the load, […] ...
Posted by Albert Gareev on May 23, 2012
Parent page: Load/Performance Testing with NeoLoad The way you execute requests to the server will have a dramatic effect on results! Why dramatic? – Because numbers might be telling opposite stories, either giving you a true picture or misleading you about what’s happening. But let’s get to a concrete example! We start with the same […] ...
Posted by Albert Gareev on May 22, 2012
Parent page: Load/Performance Testing with NeoLoad I keep reviewing NeoLoad Containers, this reusable units, serving the same way as functions in a function library. The main outcome we want to get from load session is measurements – response time, errors, throughput, etc. All tools allow obtaining measurements from individual requests posted and some tools allow obtaining aggregate […] ...
Posted by Albert Gareev on May 16, 2012
Parent page: Load/Performance Testing with NeoLoad I’ve quickly mentioned containers here. Now I want to get back to this concept with regards to load execution delays, commonly referred as “Think Time” and “Pace Time”. Same as typical user makes pauses while working with an application, the load script needs to delay execution for periods of time in […] ...
Posted by Albert Gareev on May 15, 2012
Parent page: Load/Performance Testing with NeoLoad You probably don’t want to rewrite your load testing scripts just because you need to run them against another server. With NeoLoad you can re-point them with one of the following. Change ‘server’ parameter in call of GET/POST methods Go to Design tab Select Virtual User – your script […] ...
Posted by Albert Gareev on Sep 26, 2011
Remote exploration of functionalities is one of the things I enjoy in load testing. I don’t like the definition as “non-functional” though. “Para-functional” sounds better, but (at least for me) thinking of those functionalities as system or service functionalities helps to assess them from purpose/value/risks perspectives. You can’t reach them manually, you can’t even see them, […] ...
Posted by Albert Gareev on Mar 23, 2010
Do you know enough about your test environment when designing a Load Test plan? What can you do and what would you do to provide stakeholders with the most valuable information in the context and at the moment? How do you use their feedback in your testing work? ...