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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what is the concurrent users in load testing using Jmeter

in Jmeter, for a thread group, the number of thread users is 20, ramp-up period is 5s, the loop count is 10, so what is the concurrent users in this situation.
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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 ...
2
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5answers
358 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
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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. ...
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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 ...
2
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3answers
242 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: ...
2
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2answers
2k views

While loop working in JMeter

I am working on an script which is using a while loop and I am not able to properly understand the behavior of while loop. like When does the condition become false...? From where does it takes ...
2
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2answers
1k 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
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3answers
5k views

Jmeter throws “org.apache.http.NoHttpResponseException”

We use Jmeter to do performance testing. I gave 10 threads(10 users) with ramp up time 60 secs, 4 out 10 users failing to logout getting org.apache.http.NoHttpResponseException: The target server ...
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2answers
2k views

JMeter - Unable to capture the request after click on download link

I am facing one of the problem in my application at the time of downloading a file. I am unable to capture the request after click on download link. So may be anybody can guide me how to capture these ...
2
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1answer
232 views

How to detect performance issues within native Android app

What tools or techniques can be used to performance/load test a native Android application? Are there any that can detect the root cause of performance issues and suggest a solution?
2
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2answers
447 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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2answers
1k 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
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2answers
878 views

Connect time(ms) in jmeter is coming out to be 0

I have a Jmeter plan which has couple of samples. While running only the first time the connec time is non-zero positive number otherwise it is coming out to be 0 for all the other samples the ...
2
votes
3answers
5k views

Using Charles Proxy to test mobile app network

I would like to test the behavior of my app in case of slow network. Can Charles Proxy do it? please give me some guidance. Many thanks.
2
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2answers
4k views

Performance testing for MS Windows desktop applications

Could you recommend any tools for testing performance of desktop applications running on MS Windows? I would like to verify the speed of application activities versus HW and OS configuration. I have ...
2
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1answer
210 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
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2answers
123 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 ...
2
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1answer
264 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 ...
2
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1answer
196 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 ...
2
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3answers
256 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 ...
2
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3answers
88 views

What tools are recommended for end to end page load time testing (including ajax and styling elements)?

We are looking to measure the length of time it takes for certain key pathways to become 'usable' e.g. certain styling elements will have loaded in and some information ajaxed in on a page. Ideally ...
2
votes
1answer
346 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
2answers
335 views

How to test Web app for concurrency problems?

Recently we found a concurrency problem in our Web app. It came out that a class in a third-party library is not thread-safe and when it is shared between multiple threads, then access to it must be ...
2
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2answers
138 views

Performance Testing tool for win & web applications

My team is looking for a performance testing tool that can work on both Win&Web application. Our application contains an SAP 3D Viewer inside. We are considering Borland Silk Perfomer & HP ...
2
votes
1answer
2k views

Use of Standard Deviation and Percentiles in performance testing

The following report is generated by Gatling (my favorite performance test tool). I am wondering how to make use of the standard deviation and percentile data that it produces. I am planning to use ...
2
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2answers
154 views

Where can I find good tutorials for Cloud Environment, Automated Testing in Cloud and Tools [closed]

I want to learn automation testing in cloud and I do not have knowledge or experience in cloud environment. I searched over the internet and found some blogs, steps, etc but I am not sure whether ...
2
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4answers
1k views

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

How can I capture the browser rendering time?
2
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1answer
116 views

JMeter Report Dashboard

Most recent version of JMeter has an option to generate Report Dashboard which is great, but i am struggling to customize it to match my needs. I am running performance tests for every new version of ...
2
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1answer
62 views

JMeter: Holding Session for a certain period of time

Is it possible to hold a session for a certain period of time using JMeter? While using "Ultimate Thread Group" it seems that it is holding the threads but in the mean time requests are flooding my ...
2
votes
2answers
180 views

Am I missing anything professionally in my jmeter plan?

I have been requested to perform load testing for website and after that decision to purchase new server will depends on me so I do not want to take any wrong decision or risk. Requirement: 1 - Put ...
2
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2answers
3k views

How to check latency time in Jmeter?

What settings do I need to use so I can check latency time in Jmeter?
2
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2answers
69 views

Can any one explain how the Jmeter listeners work

Jmeter has many Listeners. How do they work and how is different types of graphs and results generated.
2
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2answers
141 views

How to load test a very complex, security heavy application?

Testing can sometimes get tricky. Especially when the application is very complex. I am currently working on a project and I have no idea how to test this. I work a lot with CMS based websites and ...
2
votes
1answer
560 views

Jmeter Web driver sampler

Jmeter has a webdriver sampler. We have to write the scripts. We have scripts written in opkey, a selenium based tool. Can we integrate both of them. So that we don't have to write scripts in jmeter.
2
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1answer
2k 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 ...
2
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2answers
11k views

Performance testing - analysing results in Jmeter

I am using Jmeter (started using it a few days ago) as a tool to simulate a load of 300 threads using a csv data file that contains login credentials for 3 system users. This objective is to measure ...
2
votes
1answer
53 views

How do I test Aspects (AOP)?

I have recently written a bunch of aspects (using PostSharp in C#) that will be applied to methods in some high traffic sites. How should I make sure they are going to perform? Can anyone recommend ...
2
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1answer
124 views

Web application load testing

Anyone had experience with load testing tools like WAPT Pro? I want to know, when recording those load test script on a web application, shall i include those like Google Analytic tracking request? Or ...
2
votes
1answer
548 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 ...
2
votes
1answer
40 views

Detect USB bus failure on Win CE device from a separate PC

I am testing a device running Win CE that is having issues with the USB bus failing intermittently. Manually, it takes me hours to reproduce the bug so I'm trying to automate this process. So how do I ...
2
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0answers
49 views

How to create a workload model?

I am senior in college and I just got hired in QA. My first task is to create a workload model. However I am not sure what to do. I was hoping if anyone can point me to a good example. I have to ...
2
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0answers
31 views

Passing a dynamically created query string for Salesforce application

I created a web performance test for a Salesforce workflow using visual studio. I created a custom extraction to retrieve a parameter from a query string. However, the request with the query string is ...
2
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1answer
88 views

Capture Provisioning time in Performance testing

I have a situation in my application where I need to wait and note the provisioning time of a Virtual Machine (The time taken when the order got accepted and the time it is available for usage). How ...
2
votes
2answers
287 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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vote
3answers
90 views

Can Apache Jmeter be used to measure the load time for a specific action

I am new to performance testing. Can Apache Jmeter be used to measure the load time for a specific action, such as response time for a button click by simultaneous users. If yes how this is performed ...
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vote
7answers
983 views

Performance tool for scripting HTTP requests dynamically

I'm about to script performance tests for a system with REST interface. I'm looking for a performance tool that let me prepare XHR requests dynamically, i.e. simulate what JavaScript application does. ...
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4answers
388 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.
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vote
2answers
46 views

How to do a performance/load tests on a scaled down environment?

I have done some searches on this topic, and it seems that almost everyone recommend to use a copy of PROD environment to do such tests For example this answer on SQA: click and also I've reviewed ...
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vote
3answers
3k views

How to use the If controller in the Jmeter

I want to check if title = google if yes then hit yahoo.com else do nothing could anyone please help with this. I am new to Jmeter.