Questions tagged [load-testing]

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.

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17
votes
11answers
28k 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 ...
16
votes
5answers
24k 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. ...
15
votes
2answers
13k 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 details:...
13
votes
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
votes
1answer
7k views

JMeter: Getting error in non GUI mode

While trying to execute JMeter from the command line in non-GUI mode I'm getting errorlevel=2 error message. What I did is, Navigate to the JMeter bin directory in command prompt. Run the ...
12
votes
1answer
250 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 ...
11
votes
5answers
4k 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: ...
11
votes
4answers
2k 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
5answers
1k views

Can a proportionately scaled down testing environment find performance load issues?

At my company, we are working on ways to improve our testing of database changes, in our testing environment first. Since there are no resources to have a production like volume of data in servers ...
9
votes
9answers
35k 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 ...
9
votes
2answers
32k 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 ...
7
votes
3answers
16k 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 ...
7
votes
4answers
19k 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 ...
7
votes
1answer
10k 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. My problem is that I need a reference for the answers to be sure about its correctness. These are my question ...
7
votes
3answers
3k 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 ...
6
votes
5answers
2k views

What is a cost-effective way to load test a web application using 1200 virtual users?

I need to run a UI load test against a web application with 1200 concurrent virtual users. I've looked at several products, and they seem to cost upwards of $1500 for a one month licence. I'm ...
6
votes
5answers
9k 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: ...
6
votes
3answers
4k views

Maximum Number of Threads in Jmeter

what is the maximum number of threads in JMeter from a single machine? I know there is a dependency for hardware configuration. I'm using this hardware configuration: Command: #lscpu Architecture: ...
6
votes
1answer
8k 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.
6
votes
2answers
5k views

How do you stress test a video streaming app?

I have a a streaming application that I am going to test. I don't 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, ...
6
votes
4answers
2k views

Is there load/stress testing software that can be used for Ajax calls?

I am trying to devise a strategy for load/stress testing our web application. JUnit/JCrawler and to a lesser degree Selenium Grid can be used for our HTTP request load/stress testing. I have not ...
5
votes
2answers
641 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
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:- ...
5
votes
3answers
20k 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: ...
5
votes
3answers
610 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 ...
5
votes
2answers
7k 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 ...
5
votes
3answers
706 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 ...
5
votes
2answers
673 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 ...
5
votes
3answers
69 views

Strategies for load testing in a Live or Dev Ops environment?

I am working on a strategy/plan to load and performance test a web based application hosted in Azure. The application integrates to a couple other hosted apps that we do not host (i.e. do not have ...
5
votes
1answer
968 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 ...
5
votes
1answer
809 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
2answers
905 views

Authentication and load testing using JMeter

Looking to get advice on how to approach load testing using JMeter, My question is more about best practices since i am totally new to this tool. I am confortable working with samplers, view results ...
5
votes
3answers
799 views

How can I do performance testing on Cassandra database as a manual tester?

I need to send data on Cassandra DB and retrieve it back. I want to check how much time it will take to post data and retrieve it back. We are not using Rest API's. There are methods(logic)only. Data ...
4
votes
4answers
177 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
5answers
328 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 ...
4
votes
2answers
2k 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?
4
votes
4answers
4k views

How to determine 'reasonable' response times for performance testing?

I have found performance targets (how long web pages take to respond to actions) difficult to introduce into organizations. There seem to be are no clear definitions (in the industry) that are ...
4
votes
4answers
21k views

How to click a button from multiple buttons on same page in selenium web driver?

Here my requirement is need to click on one button from multiple buttons, but which are having same class and type on same page. I need to click on button number 4 from below example. For example ...
4
votes
1answer
18k 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 ...
4
votes
3answers
152 views

Performance / Load Testing: Where can I start?

My Application is a cloud-based solution. And I need to test its performance with many concurrent users that should be within the minimum market viability for concurrent users. I do not have a ...
4
votes
2answers
819 views

Load/stress testing framework for AWS EC2 instances with startup/shutdown?

I'm looking for a tool/framework (preferably in Java if it involves coding) that allows me to load test a server. I need to be able to launch multiple EC2 instances, hit the server hard for a period ...
4
votes
3answers
1k views

How to share the generated JMeter Report dashboard to stakeholders via email?

Now that I have generated the report dashboard after the JMeter test run, I want to share the same via email to concerned members and stakeholders. Please suggest how can I do the aforementioned task!
4
votes
3answers
6k views

How to use multiple Jmeter instances on a single machine

I want to use multiple JMeter instances from a single machine. Is it possible? I know about distributed testing but I haven't required machines to do my load test. Actually, I need to run four ...
4
votes
3answers
229 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
4k views

How to send different http requests at the same time in jmeter

I need to send many http requests (E.g: 500 http request) with different data (E.g: 500 data) at the same time. How can I do it? Example: abc.com/path?param1=xyz&param2=qwe 'xyz' and 'qwe' are ...
4
votes
2answers
13k views

How to check latency time in Jmeter?

What settings do I need to use so I can check latency time in Jmeter?
4
votes
2answers
6k views

How can I test load for a chat app built on node.js and socket.io?

Here is the link for a simple chat application with room concept which I'm referring to learn how to create socket.io applications - https://github.com/mcantelon/chatrooms . I need to test how much ...
4
votes
2answers
14k 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-...
4
votes
2answers
1k 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 ...
4
votes
3answers
3k 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 ...