A load test is a type of performance test "focused on determining or validating performance characteristics of the product under test when subjected to workload models and load volumes anticipated during production operations". For issues relating to the setting up or running of load tests.

learn more… | top users | synonyms

14
votes
5answers
17k 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. ...
13
votes
11answers
23k views

Load Testing, Selenium Vs Jmeter Vs other tools

I have been using Selenium/Webdriver for functional testing in a grid setup. We are in the process of transitioning to a Solr based search service. I already have Solrmeter for load testing the ...
12
votes
9answers
986 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
7k views

Why is Visual Studio 2013 not willing to run my Web Performance / Load Test?

I am attempting to run a simple Web Performance Test that I recorded in Visual Studio 2013 Ultimate. I click the 'Run Load Test' icon inside of VS, only to be greeted with the following error ...
10
votes
4answers
1k views

Load testing tools vs. making your own

I've never needed to work with commercial load running tools before, as our test infrastructure is pretty immature here and I've used internal tools in the past. We're working on a .NET technology ...
10
votes
1answer
185 views

How do I tune the probabilities in a Markov chain based load test to produce specific hit rates?

I am writing a load test for a web application. I have a few month's worth of access logs that tell me relative hit rates of various URLs. However, the access logs do not contain enough information ...
6
votes
4answers
3k 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: ...
6
votes
5answers
5k views

Websocket Load Testing

We have a Websocket server which I have to load test. The test case is as follows: Maximum number of connections possible Each connections should be sending 1 message/second Tools I have tried: ...
5
votes
2answers
569 views

Are load testing results affected by location, e.g. India vs. USA

I am working on load testing in one of e-commerce websites mean while I came across one question i.e., I am doing the load testing from India. Whether it will be having any changes in results if I ...
5
votes
3answers
2k 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:- ...
5
votes
3answers
8k views

Getting a random line from a file with Jmeter

I know that jmeter has a CSV based controller, but this will just read the lines sequentially, one per thread/iteration. I also know that you can use __StringFromFile() to read in a line from a ...
5
votes
1answer
717 views

Nothings gets recorded when using JMeter for load testing of Vaddin-based app

We have been trying to do a Quick Load test on one of the POC application developed in Vaddin using JMeter tool, the server is hosted on local network. The settings for automating Vaddin application ...
5
votes
3answers
386 views

Load-Testing an SMS application

HELP! Any developers whom have ever created a service that interacts with people via SMS, how did you test you application for integrity under heavy load? Im in the middle of helping the company I ...
4
votes
4answers
164 views

Load testing only on stable code?

There's someone who oversees QA - let's call him Joe. During 2 years of development we haven't had real load tests. Now release is getting close and QA is responsible for preparing and executing load ...
4
votes
3answers
213 views

How to best design and create a load test on a web application?

I'm new to testing and have been asked to create a load test for a web application. My group's lead asked the test to just browse the application for hours with a load of 100 users. That's the only ...
4
votes
2answers
951 views

Maximum number of threads supported by JMeter

I want to do load test with 10000 users using JMeter. I want to know whether my system is capable of doing that. My System Configuration : RAM: 4 GB Processor : Intel core 2 quad 2.50 GHz OS: ...
4
votes
3answers
53 views

Will there be any negative impact, If I load test an Amazon-EC2 hosted application from JMeter (also AWS-EC2 hosted)

Has anyone experience of load-testing a web application hosted on Amazon-EC2 by using the JMeter that is also hosted on Amazon EC2 instance (separate instance). Please share best practices and tips ...
4
votes
2answers
15k views

Calculate peak concurrent users on a website

I am looking at setting up some website load testing scripts and need some help in finding a formula to estimate how many concurrent users are browsing a website at peak times, based on common metrics ...
4
votes
2answers
297 views

Load testing APIs & web services resource?

I'm looking for a good, in-depth resource for load testing REST APIs and web services that goes well beyond "beginner load testing". I'm wanting a technology-agnostic resource that focuses on the ...
3
votes
4answers
268 views

Load testing for free or cheap without having to setup Selenium Grid?

One of these days I need to setup Grid, but I don't have much time lately. My need is pretty simple: run concurrent find operations to load test our search service. I know there are things like ...
3
votes
6answers
14k 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 ...
3
votes
3answers
7k views

Performance testing with 100 users: how to read links from CSV file in JMeter?

I am using JMeter to do performance testing of a site. I need to test various links of a site (no need to login) with 100 users and loop it for some number of times. I want to put those links in a ...
3
votes
2answers
50 views

Performance / Load Testing: Where can I start?

MY Application is cloud-based solution. And I need test its performance with many concurrent users that should be within the minimum market viability for concurrent users. I do not have a clear ...
3
votes
3answers
92 views

Generate test data in which format

What is the best approach to make test data configurable ? Through XML file or properties file or any other way. But must not be hard coded. What approach should be taken to run the same Test Suit ...
3
votes
2answers
2k views

Comparison of JMeter vs Visual Studio Load Test

My organization is currently planning to test the load capability of our web application (we live in a third-world country, of which testing practice is a very new thing here). In accommodating this ...
3
votes
1answer
409 views

How to estimate “how many servers our company sould purchase for this web app” with load/performance testing?

this is a question I faced in an interview: A web app is going to go online and the manager want you to find out how many servers the company should purchase. We have one server(used by testers) and ...
3
votes
2answers
4k 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 ...
3
votes
3answers
127 views

How to reproduce “Multiuser Concurrency Problems” in testing environment with limited resources

Scenario: In case of simultaneous usage by multiple users the cookie based login sometimes gets overridden causing one user to see other users information. Session is completely cookie based and ...
3
votes
2answers
811 views

Load / Performance testing tools or approach for backend

I work on a team which is basically all backend. Functional and unit testing is achieved by python or perl scripts or sometimes bash scripts. But if we need to load or performance test our ...
3
votes
1answer
394 views

How do you stress test a video streaming app?

I have a a streaming application that I am going to test. I dont really know how to do this. Do I need a special plugin (if so, why)? Why is it difficult to record a scenario for streaming a video, ...
3
votes
1answer
807 views

load test terms: What are Transactions, request, TPS,throughput?

I am completely new in load testing and want to start analyzing results of a load test. I have searched the web completely and read many question in SO. My problem is that I need a reference for the ...
3
votes
1answer
778 views

Load testing a C# client-server GUI application

I am looking for a way to perform a load test on a client-server GUI application, developed in .NET C#. I was under the impression that Visual Studio Team Foundation Server has an option for creating ...
3
votes
2answers
434 views

Load testing web service with SoapUI to confirm android app's slowness

The AUT is on Android platform which has experienced slowness or long time loading a section's contents (more than 17s). I can notice the app only has long time loading the first time I enter that ...
3
votes
1answer
1k views

Can testcases in .csv or excel format be imported in SOAP UI?

I am using SOAP UI to test our RESTful search service. The search request is of the form : { "className": "Pets", "searchType": "SearchResult", "query": ...
3
votes
2answers
195 views

Visual Studio 2013 Performance results analysis issues

I have to use VSTS 2013 ultimate as a Performance (Load) test tool for one of my project, I have my prior experience in JMeter, but client want only VSTS performance report. I have studied and used ...
3
votes
0answers
1k 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 ...
2
votes
5answers
325 views

Lightweight load & performance testing frameworks

Which lightweight load and/or performance testing frameworks could you recommend? some considerations: Configuration with not too much coding (some JS would be okay) command line + text editor ...
2
votes
3answers
2k 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
votes
5answers
1k 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
2answers
770 views

How to determine breaking point of my application when performance testing from jMeter

I am doing some performance testing with jMeter on my application. I've check marked Retrieve all Embedded Resources and Clear cache on each iteration. For the thread group I've got: Number of ...
2
votes
2answers
264 views

Load Testing on CSRF enabled website with JMeter

Need help, I'm into a situation where, I need to perform Load testing and I am using JMeter to perform load test. How can I configure CSRF token in JMeter as it's showing 403 Error on the links, the ...
2
votes
2answers
147 views

Server has no effect in CPU graph , memory usage etc during load testing

I am doing load testing using Jmeter. We have hosted IIS server on Machine X and one website is running using same server. Now I am putting load on website with 30 users for 30 minutes , during ...
2
votes
1answer
149 views

Running jmeter threads in sequential mode

I have a test plan with 100 users and I would want to loop through them once for sake of debugging, hence one user once and second user and so on. I know I can use Once only controller to limit one ...
2
votes
3answers
379 views

Calculating Average Load from Peak load and vice versa

For testing out some webservices, how do I estimate the Peak Load per second if I know the average number of hits I know the site is going to get in a day or get in a year. Likewise, if I know the ...
2
votes
1answer
203 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 ...
2
votes
1answer
2k views

Load runner is unable to launch IE8 while recording?

I am using Win 7 Ultimate edition and i have installed Load Runner 9.10. I have added an exception to the firewall in order to allow vUser Generator. The problem is whenever I try to record a script ...
2
votes
4answers
148 views

JMeter threads vs users

I want to know whats the difference between hard-coding user (1 user) credentials to a HTTP Request while threads is 20 and using a CSV Data Config that reads 20 user credentials while the thread ...
2
votes
1answer
104 views

Not able to login in site using JMeter

I tried a lot and tired now :( I need to Load test a Website. I have configured all things, specified all necessary extractor & expressions and try to login, but it is giving me Response code: ...
2
votes
1answer
855 views

Setting a Connection time out in Jmeter

I want to know how to set the Timeout in milliseconds for HTTP Samplers that are generated by using recording controller. Is there any way to configure this at one place, so that it will be applied to ...
2
votes
1answer
1k views

How to set up Jmeter ramp up time?

Please I want to know How to set up Jmeter ramp up time ? and if having error in some requests due to the ramp up time >> ignore the test or how can I handle this problem ? Thanks