Questions tagged [performance]

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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3answers
893 views

Is my approach to performance testing in Linux environment correct?

I want to do performance testing in linux environment for a C++ application. I need to measure the CPU usage, Memory usage of the application. This application is a multi threaded application. In ...
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5answers
192 views

Making sense of performance regressions

Imagine a situation in performance regression testing where commit A is very deleterious to page performance, but does not trigger a failure - it's just under the level required to do that. Commit B ...
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2answers
41 views

SmartBear WeloadUI doesn't stop

I'm new at WebloadUI and although seems to be an amazing tool, I'm having problems simulating concurrent users. I record the test using the methodology explained in the SmartBear documentation, I ...
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1answer
976 views

Performance testing tool suggestion for Node.js and ASP.NET

I am to carry out performance tests on Node.js and .NET. This is an academic exercise. I have searched on Google for performance testing tools, and I came across such tools as HP LoadRunner, and ...
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4answers
3k views

Why LR tool is not able to capture browser rendering time?

How can I capture the browser rendering time?
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9answers
40k views

Tools to measuring page rendering time

I'm using Jmeter at my organization for performance testing. The application is a secured web portal that provides a lot of reports and documents to its user. A major issue that I've run into is ...
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2answers
391 views

Open source Projects for Performance/Load/Stress Testing

I am a Software Testing Enthusiast and i have mostly worked on Functional Testing(Manual). I am interested in performance testing and i have worked on a very small project where i used LoadRunner. I ...
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2answers
19k views

Jmeter's threads got stuck and never end

I'm working on some Jmeter scripts, everything seems to work just fine; they got recorded and run properly (for a couple of users anyway). The problem appears when I run the scripts for more than 50-...
5
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0answers
2k views

How to deserialize and correlate Binary Large Objects in Load Runner 11.5 Web Custom Request?

I'm working on a Silverlight based application. We've recorded the scripts using Load Runner 11.5 and while replaying to find dynamic values for correlation, we found out that the entire data in a ...
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3answers
3k views

JMeter Concurrent Users Count Practice

I have a web application which is working in production and there are 2000+ users of my application. Now I have to perform performance testing on the system so is there any idea how many concurrent ...
2
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1answer
258 views

Finding client-side bottlenecks in Silverlight

I'm in charge of load testing and finding bottlenecks in a Silverlight application - no functionality testing, just load and performance testing. I don't know much about the underlying core of ...
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1answer
100 views

Can a Business Intelligence solution be tested?

I'm developing a business intelligence solution using Microsoft BI Development Studio. I'm Mainly using SSIS , SSAS and SSRS. The users will be accessing the reports from a web application (ASP.NET ...
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2answers
171 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 ...
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5answers
5k 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: ...
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3answers
2k 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 ...
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2answers
3k 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?
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5answers
2k 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. ...
3
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1answer
9k 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 ...
2
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1answer
646 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 ...
5
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3answers
7k 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:- ...
3
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2answers
2k 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 ...
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2answers
3k 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 ...
5
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1answer
233 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 ...
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1answer
1k 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 ...
3
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1answer
329 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 ...
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1answer
2k 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 ...
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2answers
8k 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 ...
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5answers
1k 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 ...
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3answers
297 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 ...
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2answers
6k 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 ...
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2answers
264 views

How can I downgrade to IE6 to use Load Runner 8?

I'm totally new to this testing software. Currently, I'm using LR 8.0. I learned that this version is only compatible with IE6. For some reasons, I cannot afford to downgrade my current IE version ...
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2answers
43k 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 ...
3
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3answers
151 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 ...
6
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1answer
10k views

How to stop thread in JMeter?

I need to stop a 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
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1answer
356 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 ...
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3answers
5k 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.
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1answer
324 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 ...
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5answers
5k 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?
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4answers
503 views

Performance testing resources [closed]

Please share any good performance testing resources which you have come across in past or referred to while working or learning about performance testing.
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5answers
25k 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. ...
10
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3answers
315 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 ...
13
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9answers
1k 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 ...
12
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2answers
739 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 ...

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