How do you do a load test on a web application

Create a dedicated test environment for load testing.Determine the load test scenarios.Determine load testing transactions for an application.Prepare data for each transaction.Predict the number of users that will access the system.

How does load testing work for website?

During load testing, the system is taken through a steadily and constantly increasing load until it reaches the threshold. You want to find the weight limit—the weight (load) of activity that an application, software, or website can handle under normal conditions. The weight limit should be our peak load.

Which tool can be used for load testing of web application?

JMeter is a Java application for load and performance testing. Used to test web apps, SOAP & REST web services, FTP, databases, and more. The most mature, and widely used open source load testing tool available. Many commercial tools support JMeter.

How do you do a load test?

Identify business goals. …
Determine key measures for the application and web performance. …
Choose a suitable tool. …
Create a test case. …
Understand your environment. …
Run tests incrementally. …
Always keep end-users in mind.

What is example of load testing?

Some basic examples of load testing are: Testing a printer by transferring a large number of documents for printing. Testing a mail server with thousands of concurrent users. Testing a word processor by making a change in the large volume of data.

What is load testing and why load testing is needed and necessary?

Load testing is important in the Software Development Lifecycle because of the following reasons: It simulates real user scenarios. It evaluates how the performance of an application can be affected by normal and peak loads. It helps save money by identifying bottlenecks and defects on time.

What should I test in load testing?

Create Realistic Scenarios. Think like a user would. …
Test Early, Test Often. Whether your team is adopting an agile, devops, or shift left mentality, it’s essential to test early and test often. …
Set Realistic Benchmarks. …
Leverage Real Life Data. …
Analyze Test Data to Unearth Underlying Problems.

How does JMeter test web applications?

Create a thread group.
Add thread properties (e.g., number of threads, loop count, ramp-up period)
Add JMeter elements (e.g., HTTP request default, HTTP request sampler, output results)
Run test.
Analyze results (e.g., throughput and deviation)

How do you test a website?

Functionality testing.
Usability testing.
Interface testing.
Compatibility testing.
Performance testing.
Security testing.

How do you test load balancing?

To test network load balancing, connect a browser to the cluster IP address, for example: Refresh the screen multiple times. If the cluster is operating successfully, web pages from different machines in the cluster appear after each refresh.

Article first time published on

How do you test application performance?

Identify the Test Environment and Tools. Identify the production environment, testing environment, and testing tools at your disposal. …
Define Acceptable Performance Criteria. …
Plan and Design Tests. …
Prepare Test Environment and Tools. …
Run the Performance Tests. …
Resolve and Retest.

What are the types of load testing?

1 – Load Testing. …
2 – Capacity Testing. …
3 – Stress Testing. …
4 – Soak Testing.

How do you test load on a server?

Define the desired number of virtual users and user groups.
Specify scenarios to be run by different user groups. …
Specify the browser, connection speed and start delay for each user.
Specify the load station for each user.

Why do we do load test?

Load testing is performed to determine a system’s behavior under both normal and anticipated peak load conditions. It helps to identify the maximum operating capacity of an application as well as any bottlenecks and determine which element is causing degradation.

How do you load test using postman?

Create a collection of the APIs you need to load test. Save it.
As seen in the screenshot taken from the link, just hit run.
It will ask for Number of iterations and delay between each API call. Fill it as per your load test requirement. And hit Run.

What is the difference between load testing and stress testing?

The key difference is the goal of each: Load tests help you understand how a system behaves under an expected load. Stress tests help you understand the upper limits of a system’s capacity using a load beyond the expected maximum.

What is Web testing with examples?

Web Testing, or website testing is checking your web application or website for potential bugs before its made live and is accessible to general public. Web Testing checks for functionality, usability, security, compatibility, performance of the web application or website.

When you are testing a web application?

When you are testing a web application, it is very useful to employ a proxy tool to save every request and response. You can manually test every request and analyze the response to find vulnerabilities. You can test parameter and headers manually to get more precise results than if using web vulnerability scanners.

How is Web Testing different than application testing?

Web app testing aims to ensure that websites deliver a highly functional, bug-free experience across browsers and devices. On the other hand, mobile app testing aims to identify any compatibility issues or bugs for the native or hybrid mobile app across a wide range of Android and iOS devices.

How do I run a test in JMeter?

Start JMeter. Open the JMeter window by clicking on /home/manisha/apache-jmeter-2.9/bin/jmeter.sh. …
Rename the Test Plan. Change the name of test plan node to Sample Test in the Name text box. …
Add Thread Group. …
Add Sampler. …
Add Listener. …
Run the Test Plan. …
View the Output.

What kind of application can be tested using JMeter?

Apache JMeter may be used to test performance both on static and dynamic resources, Web dynamic applications. It can be used to simulate a heavy load on a server, group of servers, network or object to test its strength or to analyze overall performance under different load types.

How does JMeter measure page load time?

In Jmeter, Response time = Processing time + Latency(time taken by network while transferring data)
In Browser, Response time = Processing time + Latency + Rendering time Hence you will found a difference between http watch response times and jmeter response times.

What is load balancer Testing?

What is Test Load Balancer (TLB)? Test Load Balancer(TLB) is a tool that can automatically partition tests into multiple subsets each one of which can be executed in parallel. The execution can happen on different physical/virtual machines or on the same machine as different processes or threads.

How do I check my AWS load balancer?

On the navigation pane, under LOAD BALANCING, choose Load Balancers.
Select your load balancer.
On the Description tab, Status indicates how many instances are in service.
On the Instances tab, the Status column indicates the status of each instance.

What is load testing software engineering?

Load Testing is a non-functional software testing process in which the performance of software application is tested under a specific expected load. It determines how the software application behaves while being accessed by multiple users simultaneously.

What is usability testing in Web testing?

Usability testing is a method of testing the functionality of a website, app, or other digital product by observing real users as they attempt to complete tasks on it. The users are usually observed by researchers working for a business.

What is the best tool for performance testing?

WebLOAD. This is an enterprise-scale load testing tool that can generate real-life and reliable load scenarios, even in most complex systems. …
LoadNinja. …
LoadView. …
StresStimulus. …
Apache JMeter. …
SmartMeter.io. …
Rational Performance Tester. …
Silk Performer.

How would you test the login feature of a Web application?

Verify the login page by pressing ‘Back button’ of the browser. It should not allow you to enter into the system once you log out. Verify the timeout functionality of the login session. Verify if a user should not be allowed to log in with different credentials from the same browser at the same time.

How does a load tester work?

Battery testers work by applying load and monitoring the voltage and current of the battery. The actual process is quite simple – when the conductive elements of the tester touch both the positive and negative contacts on the battery, the current is released and can be measured.

How do I stress test my web server?

Record one or more user scenarios.
(Optional) Modify the recorded traffic.
Create a load test that will simulate several virtual users.
Assigns scenarios to the users (you can assign the same scenario to several users or assign an individual scenario to each user).

What is the difference between performance and load testing?

Performance testing is concerned with evaluating the overall system’s performance and collecting metrics such as availability, response time, and stability. Load testing is a technique that verifies whether the application can handle the expected load.