Performance Testing Tutorial

Performance Testing Tutorial Performance Testing Tutorial What is it its Types? 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Last updated on May 18,2020 2.7K Views Neha Vaidya A tech enthusiast in Java, Image Processing, Cloud Computing, Hadoop. A tech enthusiast in Java, Image Processing, Cloud Computing, Hadoop. Bookmark 1 / 9 Blog from Performance Testing The modern era of IT has seen an overwhelming evolution of theSoftware Testingindustry giving way to greener pastures. Thus it becomes very important to ensure the effective performance of the software application. Through the medium of this Performance Testing Tutorial, I will be providing you in-depth knowledge about performance testing fundamentals along with the details on a load testing tool known as JMeter.Below topics are covered in this article.What is Performance Testing?Why Performance Testing is required?Performance Testing TypesPerformance Testing ProcessPerformance Testing MetricsPerformance Testing ToolsIntroduction to JMeterYou may also go through this recording of softw are testing tutorial where ourSoftware Testing Trainingexperts have explained the concepts in depth.Performance Testing Tutorial for Beginners | EdurekaThis video on Performance Testing Tutorial gives a complete insight on performance testing, its types, and how to do performance testing with the help of JMeter.What is Performance Testing?Performance Testing is a type of software testing that ensures that the software applications will perform well under their expected workload.It is essential to verify whether the product meets the expected or required performance level.Performance testing measures the quality attributes of the system, such as scalability, reliability and resource usage.It mainly focuses on certain factors of a Software Program such as:Speed It identifies whether the response of the application is fast.Scalability It determines the maximum user load.Stability It checks if the application is stable under varying loads.Now that you know what is performance testing, l ets see why you need performance testing.Why Performance Testing is Required?Performance Testing provides information about their application regarding speed, stability, and scalability. More importantly, it uncovers what needs to be improved before the product goes to market. Without that, software might suffer from issues such as: running slow while several users use it simultaneously, inconsistencies across different operating systems and poor usability.Performance testing determines whether their software meets speed, scalability, and stability requirements under expected workloads. Applications that are sent to market with poor performance metrics due to nonexistent or poor performance testing are likely to gain a bad reputation and fail to meet expected sales goals. These are a few of the reasons that depict the need for performance testing.Now lets dive deeper into this Performance testing tutorial article and see its different types.Performance Testing TypesBelow image shows different types of performance testing. Lets have a look at the details of its various types in depth.Load Testing Load Testingchecks the applications ability to perform under anticipated user loads. The main objective of this testing is to identify performance bottlenecks before the software application goes live.Stress Testing This testinginvolves testing an application under extreme workloads to see how it handles high traffic or data processing. Here, it identifies the breaking point of an application.Endurance Testing This testingis done to make sure the software can handle the expected load over a long period of time.Spike Testing It is used totest the softwares reaction to sudden large spikes in the load generated by users.Volume Testing Here, a large amount of data is populated in a database and the overall software systems behavior is monitored. The main objective of this testing is to check the software applications performance under varying database volumes.Scalability T esting The main objective of scalability testing is to determine the software applications effectiveness in scaling up to support an increase in user load.Now that you have gained some insights into the fundamentals of performance testing, lets move further and understand the working and steps involved in the performance testing process.Performance Testing ProcessThe below infographic depicts the steps involved in the performance testing process. Lets dive deeper and understand each of these steps in detail:Step 1: Identify the testing environmentIdentify the hardware, software, network configurations and tools available for testing.Performance testing environment optionsinclude:A subset of the production system with fewer servers of lower specificationA subset of the production system with fewer servers of the same specificationReplica of productions systemActual production systemStep 2: Identify performance metricsIn addition to determining metrics such as response time, throughp ut and constraints, determine what are the success criteria for performance testing.Step 3: Plan and design performance testsDetermine performance test scenarios that take into account user variability, test data, and target metrics. This will basically create one or two models.Step 4: Configure the test environmentYou need to prepare the elements of the test environment and instruments needed to monitor resources.Step 5: Implement your test designDevelop and implement the tests for execution.Step 6: Execute testsIn addition to running the performance tests, you must monitor and capture the data generated.Step 7: Analyze, report, retestThe last step is to analyze the data and share the findings. Here, you must run the performance tests again using the same as well as different parameters.So, this was all about Performance Testing process. Now lets know what are the test metrics or parameters for performance testing.Performance Test MetricsProcessor Usage It is theamount of time a p rocessor spends executing non-idle threads.Memory use It is the amount of physical memory available to processes on a computer.Disk time It is the amount of time disk is busy executing a read or write request.Bandwidth This impliesthe bits per second used by a network interface.Private bytes It is thenumber of bytes a process has allocated that cant be shared amongst other processes.Committed memory It is the amount of virtual memory used.Memory pages/second It is thenumber of pages written to or read from the disk in order to resolve hard page faults.Now lets move ahead with our Performance Testing Tutorial and find out some of the best tools used for performance testing.Performance Testing ToolsPerformance testing is significant in real time, particularly from a point of view of customer satisfaction. There are various performance testing tools available, such as:Apache JMeterLoadRunnerWebLOADLoadUILoadViewNeoLoadJMeter is one of the most preferred tools when it comes to Perfor mance Testing. So, lets move ahead with our Performance Testing Tutorial to know more about this particular testing tool.Introduction to JMeterApache JMeter is a tool used for testing, analyzing and measuring the performance of different software services and products. It is one of the pure Java open source software used for testing Web Application or FTP application.It is mainly used to execute performance testing, load testing and functional testing of web applications. JMeter can also simulate a heavy load on a server by creating tons of virtual concurrent users to a web server.How does JMeter perform Testing?Lets take a look at the different steps performed by JMeter during testing:First, it creates a request and sends to the server.Once it receives theresponse from the server, it then collects them and visualizes those details in a chart or graph.After that, it processes the response from the server.Finally, it generates the test result in several formats such as TXT, XML, JSON so that the tester can analyze data.If you wish to know more about JMeter and its working, kindly read this article on JMeter Tutorial.With this, we come to the ending of this article on Performance Testing Tutorial. Hope it helped in adding up to your knowledge. Happy learning.Now that you know about the performance testing tutorial, check out thePerformance Testing Using JMeter CoursebyEdureka, a trusted online learning company with a network of more than 250,000 satisfied learners spread across the globe. This course provides you insights into software behavior during workload. In this course, you will learn how to check the response time and latency of software and test if a software package is efficient for scaling. The course will help you check the strength and analyze the overall performance of an application under different load types.Got a question for us? 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