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Load Testing – A Brief Guide

By Himanshu on 8/10/2021
Load Testing is the process to assess the performance of an application where an application is put through an abnormal load to see how it reacts and perform under that condition. It is thoroughly checked if the performance of the application increases or decreases in that situation. Main attributes which are verifying during this test are Peak Performance, Server Quantity and Response Time. Load testing ensures that stability is instilled into that application when multiple users access the same function simultaneously.  Load Testing is applied when development of application near to its completion. 
 Result of load testing is clearer picture of the limitations of an application. Then, Tester can easily analyze the root cause of the problem and take appropriate steps to correct occurred issues to run that application and ensures that application is able to achieve the targeted operating capacity or not . Through Load testing ,the failures are limited during production, which reduces the excessive expenses, Hence Load testing is very cost-effective in nature.

How to Start this testing 
• Step 1: Collect all requirements to initiate this testing like: all scenarios , experiences and problems which are facing by end-user during using that application .
• Step 2: Follow how end-users use the application and the amount of load they put on it regularly to analyze the real journey of that application.
• Step 3:  Set a solid base in which you can specify the conditions and run test. Whenever you see the specifications are not met, update the process for better test execution.
• Step 4: Select a tool for load testing which should be efficient and accessible and should be able to tracking  real time test data accurately and scalable to regulate the test cases & instances and easily integrate with other tools also and perform well together.
Load Testing Tools
     Some of the most popular testing tools listed below
• Jmeter
• Blaze meter
• Gatling
• Loader.io
• Load Runner
• Load UI
• Silk Performer
• Web Load
• Load Ninja
• Kobiton
• stresStimulas
• Rational Performance Tester
• Smartmeter.io

Why Load Test is Important
Load Testing is very important part before an application moves for production. Load testing results helps in :

• Identifies the loopholes of an application .
• Optimize performance to reduce the risks of system downtime.
• Substantially reduces the cost of repairing after failure.
• Increases the scalable functions.
• Increases satisfaction and provides a better end user experience.
• Ensures that application runs smoothly and effectively
• Increases the application’s performance exponentially.

Load Testing Guidelines
• Plan the test once the application is stable.
• Decide the number of users for every script & scenarios.
• A vast number of data should be readily available in the data pool.
• One should avoid creating detailed logs to conserve the space of disk IO properly.
• Analyze all the real time issues that a system is facing before executing. 

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