Performance Testing Terminology

Performance testing is the process of determining the speed, responsiveness, and stability of a computer, network, software program or a device under a workload. In order to conduct and analyze a good load test, you need to understand the performance testing terminology including connect time, latency, etc... Let’s elaborate on what they mean. Connect Time Connect time is the time taken to establish a TCP connection between the server and the client. TCP/IP model guarantees delivery of data by its nature by using TCP Handshake. If TCP Handshake is successful, then the client can send further requests. That data send/receive [...]

By | 2018-12-13T11:19:57+00:00 December 12th, 2018|Tags: , |

Let Measure Performance with Gatling

There are many open source tools and paid solutions to perform the load tests efficiently.  As Loadium until now, we supported Apache JMeter and Selenium-based tests for load testing. Gatling, a load test tool, is on the market for a few years and it’s a mature performance test tool to use.  In the near future, we are going to support Gatling tests. Let’s discuss the pros and cons of Gatling together. If you want to add more please feel free to add comments below or shoot us a message through our contact page. First, it is an open source load [...]

By | 2018-12-06T20:12:53+00:00 December 5th, 2018|Tags: , , , |

What is Application Performance Monitoring?

Application performance management is the real time monitoring and management of performance and user experience of software applications. Speed is everything in today’s connected world. Especially when it comes to the applications and websites accessed by end users, it’s much more crucial. Users are not tolerant to slowness. They tend to abandon the application and move on to a similar app if it’s possible. So it will have a huge negative impact on business productivity, profits and even the brand itself. To be successful, velocity and stability should be in balance. IT disaster reports states that stability varies significantly between [...]

By | 2018-12-04T21:17:19+00:00 December 4th, 2018|Tags: , , , |

What’s New in JMeter 5?

A new Apache JMeter™ version 5.0 was released on September 2018 week! After the last version published in February, this version has new changes. It improved the user experience and provided many bug fixes. Most important updates include HTTP request changes, improvements for the search and the results tree. Here are the most important things provided with JMeter 5.0 version: HTTP Request Changes In previous versions, the HTTP reset only worked in SSL state. But this wasn’t a correct behavior since SSL connections use certificates that the connection made. With JMeter 5.0, if you use default HC4 Implementation, JMeter will [...]

By | 2018-11-30T13:45:18+00:00 November 30th, 2018|Tags: , , |

4 Things You Should Know About HTTP Requests

In order to perform a good performance test on the HTTP protocol, there is something that you should know about it. Let’s start! What is an HTTP request? The Hypertext Transfer Protocol is an application-level protocol for distributed, hypermedia information systems. This is the foundation for data communication for the World Wide Web since 1990. It is a generic and stateless protocol which can be used for other purposes as well as using extensions of its request methods, error codes, and headers. What makes HTTP a simple but powerful protocol? Here are some examples HTTP is connectionless: The HTTP client, [...]

By | 2018-11-27T13:01:08+00:00 November 27th, 2018|Tags: , , , |

Scopes in JMeter

As you all know, JMeter runs performance test scripts on Test Plans. Those test plans are structured as a parent-child hierarchy relation. You can add as many children as possible to a parent object. That brings us the scoping issue. In this article, we will present an explanation of JMeter's scoping rules. When speaking of the scope of an element, we should understand which element has access to which another element. Basically scoping works as a parent-child hierarchy. When you execute the test, samplers are executed according to their location on Test Plan tree but some elements like assertions and [...]

By | 2018-11-14T12:39:00+00:00 November 14th, 2018|Tags: , , , |

Regular Expression Tutorial for Apache JMeter Tests

A regular expression is a special text string for describing a search pattern. Regular expressions have a reputation for being tough, but that all depends on how you approach them. You can start from expressions as simple as this: \d which helps you identify a character that matches any digit from 0 to 9, to something complex, like: ^(\(\d{3}\)|^\d{3}[.-]?)?\d{3}[.-]?\d{4}$ While testing web applications, you need to extract information from HTML, JSON or XML response body or validate fields. You can always use CSS Selectors or JSON/XML Extractors. Besides those using regular expressions in JMeter is very powerful. JMeter’s Regular Expression [...]

By | 2018-11-12T14:27:52+00:00 November 12th, 2018|Tags: , , , |

3 Ways of Debugging JMeter Scripts

In case you have worked with JMeter scripts before, you must have stuck at some point and find yourself asking “How do I debug this stuff?”, “Why is my regular expression or jsonpath not working?” Actually, there are many ways to debug JMeter scripts and it’s very easy. Here are some ways to debug a JMeter script. 1.View Result Tree JMeter has various listener types. View Result Tree is the one that should be used to debug any request. It allows you to debug Jsonpath, XML or a Regular expression by its user interface. It can be added to your [...]

By | 2018-11-05T23:21:33+00:00 November 5th, 2018|Tags: , |

Built-in JMeter Functions

JMeter allows you to conduct performance tests on your application by using any type of request. During these tests, we sometimes need to create new data, timestamp or maybe manipulate a response. For these purposes, JMeter provides built-in functions easily adaptable to your tests. Let’s explore the ones that you might need during a test. Random String In order to create a random string in JMeter there are a few different ways. Examples: ${__RandomString(5)} This will create a random string, It can be readable or not. ${__RandomString(5,ABCD123)} This will create a random string containing only the alphanumeric values that you provide. [...]

By | 2018-11-01T18:39:23+00:00 November 1st, 2018|Tags: , , |

Campaign Periods’ Key to Success: LOAD TEST

There is a testing principle known to those close to the test community. “100% testing of a product is not possible.” Therefore, it is necessary to plan risk or prioritization based tests that are of the project’s proper economic dimension. The load test is one of them. If you want your product or the service you provide to continue to serve your customers under high demand, as designed then a load test is one of the most important items of the activities that you need to plan that can provide information on your website performance. As Loadium team, we had a [...]