Tagged Questions

Performance testing is a subset of performance engineering, an emerging computer science practice which strives to build performance into the implementation, design and architecture of a system.

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2
votes
2answers
119 views

How do I compare the performance of two .toString() methods?

Say I want to compare the performance of Java's StringBuilder.toString() with new String(char[]) for strings from one to 3000 characters in length. I do know beforehand how long the resulting string ...
5
votes
4answers
2k views

Looking for open source, Java-based tool for performance testing

Goal: I have an enterprise application written in java to test for performance. I need to do it separately, so I will be basically simulating a user interaction over http/https. My findings: ...
1
vote
3answers
946 views

When should I start doing performance testing of a web-app?

Our company has started developing a new big web application. In a few months we testers will start integration testing, functional testing and regression testing both manual and automatic. I am ...
3
votes
2answers
704 views

What are the most useful KPIs for tester

There are many KPI (Key Performance Indicators) suggested to measure the performance of software tester. My concern is what are the most useful/ efficiency KPIs for a tester?
2
votes
5answers
753 views

Learning resources for Performance Testing and LoadRunner

This question might be off-topic and/or Subjective but I am asking this question because I could not fine any suitable answers via Google. I am a Manual tester with knowledge of Java, SQL Server. ...
2
votes
1answer
2k views

Passing a dynamically created query string between requests in web tests?

So we have the following type of a URL: http://www.myurl.com/mypage.aspx?suid=145db467-907e-4e3d-b944-c1666f9d08d6 This suid query string is generated dynamically and is unique to the specific ...
1
vote
1answer
139 views

Simulating a click in web performance tests

I am working with web-test in visual studio test system, without writing a code test, is there a way to invoke a click on a link/button/submit item? I am thinking of doing this by adding a request in ...
4
votes
3answers
866 views

Load test with multiple credentials

Okay so I have created a very simple webtest. The purpose of this webtest is to attempt to login whilst simulating a few failing attempts. The webtest has the obvious credentials associated with it:- ...
1
vote
2answers
784 views

Visual Studio 2010 Performance Testing Javascript not supported

Quite simply the question in the title, when I run test it by default runs it within my visual studio. This doesn't seem to support JavaScript which makes all my test's invalid. Is there anyway to ...
0
votes
2answers
1k views

What parameters to test in a performance/stress testing tool?

I'm about to develop a performance testing tool for a server side app and was thinking to measure the following things: Hardware status monitoring via SNMP, Statistics about response status and ...
4
votes
1answer
111 views

In performance testing, when have MFAT approaches been successfully applied (in addition to an OFAT approach)?

Background: MFAT = "Multiple Factors at a Time" OFAT = "One Factor at a Time" In the field of Design of Experiments, practitioners in a large variety of fields (including software testing) have ...
1
vote
1answer
349 views

Dynamic number of request parameters for web performance testing in Visual Studio

I need to change several requests parameters list to make it dynamic. The number of parameters can differ and depends on previous request responses. In JMeter it can be done just using the regular ...
1
vote
1answer
164 views

How to test latency and performance of application virtualization?

I have a solution where user can access desktop application in browser using application virtualization that is implemented with the help of ThinRDP. I would like to know, what is the latency of this ...
1
vote
1answer
244 views

How to simulate low RAM on a machine?

On an old build there was a problem with one component that consumed a lot of RAM. As a result, another component started failing with a wrong error message. The first component has been fixed and ...
0
votes
1answer
3k views

Handling JSF ViewState errors using JMeter

I'm facing an issue while running a recorded test scenario of an application login using a single user on JMeter. I've used JMeter's proxy server to record all the requests of the login scenario. The ...
5
votes
5answers
586 views

What Are Some Unobvious Differences Between Testing a Web Application and a Desktop Application?

In the same flavour of this question, what are some unobvious differences between testing a web application and a desktop application? I've recently started looking at automating some GUI tests for a ...
1
vote
3answers
229 views

Performance / Bottle Neck Monitoring Tool

I'm looking for a performance monitoring tool that is capable of generating different performance parameters for web-application(s). The tool should be able to detect bottle necks (if any) and should ...
1
vote
2answers
3k views

Speed up launch of WebDriver Firefox Window

When WebDriver initializes, there is a long waiting time when a browser window launches before the actual automated test begins. How can I speed this up? Is there a way to have a browser window ...
21
votes
2answers
24k views

Where can I find good JMeter tutorials?

I have just been assigned the tasks of doing some research and doing some JMeter tests of my own to get familiar with performance testing. As I have never used this tool before, I would just like to ...
2
votes
3answers
138 views

Is my test a perf unit functional smoke test or something else?

Or how I learned to stop worrying and love the bomb. Each test is different. Some are big and talk to databases, others quick and self contained. We all know we'd prefer the fastest and most robust ...
4
votes
1answer
2k views

How to stop thread in JMeter?

I need to stop thread in JMeter when some condition is satisfied. How can i do this? I suppose there should be some method like Thread.Stop() or something like this but can't find concrete info.
3
votes
1answer
316 views

Unix Performance testing - training content

My company is involved with performing performance testing and now they want to perform couple of training related with executing those tests on the servers based on Unix systems. We will test ...
2
votes
3answers
2k views

What are the best tools available to test performance of a MVC web site

I am new to QA. I need to find best tools available to test performance of a MVC web site. Please help me.
1
vote
1answer
233 views

Visual studio web performance testing for invalid input

I am trying to test an input field to make sure it is behaving correctly with invalid input. But when I try to insert text with quotes and add a validation rule for it, the test fails. It seems that I ...
4
votes
5answers
2k views

Performance Testing a cloud application

What are the best approaches and what concerns are there about performance testing a web application that is hosted in the cloud?
1
vote
4answers
301 views

Performance testing resources

Please share any good performance testing resources which you have come across in past or referred to while working or learning about performance testing.
10
votes
5answers
11k views

How do you calculate the number of virtual concurrent users to use in a load test given data on actual site traffic?

When working on performance testing, one of the problems I've faced is trying to translate real-world web application traffic to simulated traffic. A practical example is for an eCommerce site. ...
6
votes
3answers
245 views

Should you preload DLL's in performance tests?

When running automated performance tests, is it better to preload any DLL's which would slow the first run of a test? This would improve the consistency of the test results but would not reflect the ...
11
votes
9answers
810 views

Performance testing - a way in?

We have an a browser based application that is built on the Microsoft Stack, specifically .NET 3.5. It also uses Ajax, iframes, jQuery etc. At the moment we are just guessing at the concurrency ...
11
votes
2answers
253 views

Measuring test performance when there is high variance

I am running single purpose performance tests on a daily basis. Currently, I run each test 3 times and average them out. But I get fluctuations from day to day which make it difficult to detect ...