Performance Testing: Essentials, Process, and Best Practices

first_imgRelated Posts Software performance testing is vital for determining how a system will perform under various loads and conditions. Performance testing does not seek to identify defects or bugs but instead measures performance in relation to benchmarks and standards. It helps developers identify and diagnose bottlenecks. Once bottlenecks are identified and mitigated, it’s possible to increase performance.Performance testing differs from functional testing, which focuses on individual functions of the software. This includes interface testing, sanity testing, and unit testing. More or less, testers check to ensure that functions are carried out properly and serve their purpose.Performance testing, on the other hand, tests the readiness and overall performance of the software and the hardware it runs on. As such, performance testing is typically conducted after functional testing.Ultimately, poor performance can drive users and customers away. In its turn, sound performance testing will help you identify areas for improvement.5 Essential Aspects of Performance TestingIt’s important to identify and test several performance aspects of the software under load. Doing so will help you detect bottlenecks and other potential issues. Let’s examine five of the most commonly tested metrics.Load Testing: it examines how a system performs as the workload increases. Workload can refer to the volume of conducted transactions or concurrent users under normal working conditions. Load testing also measures response time.Soak Testing: also known as endurance testing, soak testing is an assessment of how the software performs over an extended period of time under a normal workload. This test is used to identify system problems, such as issues with database resource utilization or log file handles.Scalability Testing: it tests software performance under gradual increases in workloads, or changes in resources, such as memory, under a stable workload.Stress Testing: it measures how a system will perform outside of normal working conditions. For example, how will the system respond when faced with more transactions or concurrent users than intended? This helps to measure its stability and enable developers to identify a breaking point. Stress testing also allows developers to see how the software recovers from failure.Spike Testing: this is a specific type of stress testing that demonstrates the software response when this software is repeatedly hit with large, quick increases in load.Performance Testing Step by StepMost of your time is going to be spent planning the test rather than running it. Once you run the test, most of the work is handled by the hardware. Of course, after results are generated, you’ll have to analyze the output. Now let’s examine the performance testing process step by step.Identify the Test EnvironmentTo get started, you’ll need to identify the physical test environment, including hardware and network configurations. You’ll also need to have the software set up. By understanding the test environment and matching it as closely as possible to real-world conditions, the test itself will be more accurate and provide better insights.Know Your Performance Acceptance CriteriaYou should know what goals you want to reach. This means determining the acceptable levels of response time, resource utilization, and throughput. Also, consider various configurations that could affect performance.Plan and Design Tests to Identify Key ScenariosNext, you need to identify key scenarios based on the anticipated real-world use. Different users will generate different demands. It’s important to account for as many of them as possible by determining variability among representative users. Once variability is determined, it’s important to simulate the conditions and to test the performance correspondingly.Configure the Test EnvironmentNow it’s time to revisit the test environment and to set up the monitoring structure. This step will be highly dependent on your software, hardware, and other factors. Review your work to make sure there are no errors.Execute the Test and Gather DataOnce the test is set up, it’s up to your hardware and software to carry it out. Make sure you gather data and closely observe the test as it unfolds.Digest the ResultsIn a sense, the real work doesn’t begin until the performance test is completed. Once you’ve gathered data, you’ll need to analyze the results. Pay attention to bottlenecks, critical failures and any abnormalities. Also, run the test again to ensure that performance is consistent.Some Best Practices to Keep in MindWhen setting up your test environment, you need to consider how your software will perform in the real world. Take into account the variety of devices and client environments, such as different web browsers, that will be used to access your software. Also, don’t start your test from the boot-up as most people will be using your platform while it is already under load.Further, set a baseline for user experience. Performance data is vital. However, the most important question is “how satisfied are the users?” Understand how decreasing performance will detrimentally impact them.Conclusion: Be Ready to Start OverOnce the first round of the test is completed, you’ll be able to identify potential bottlenecks and other issues. These problems should be addressed. This may mean changing hardware or rewriting code, among other things.However, every time something is changed, it’s important to conduct another performance test to see if results have improved. By doing so, it’s possible to incrementally improve and maximize the performance of the software and corresponding hardware. Milos Mudric Follow the Puck Trends Driving the Loyalty Marketing Industry Why IoT Apps are Eating Device Interfaces What it Takes to Build a Highly Secure FinTech … Milos Mudric is a content specialist and tech enthusiast. He is the founder of Silver Fox Digital and SEObrainiac.com and he occasionally writes interesting stories about Blockchain, IoT and Fintech. Tags:#app development#app testing last_img read more

Pandora Shareholders Approve Takeover by Sirius XM And Pandora CEO Roger Lynch

first_img ×Actors Reveal Their Favorite Disney PrincessesSeveral actors, like Daisy Ridley, Awkwafina, Jeff Goldblum and Gina Rodriguez, reveal their favorite Disney princesses. Rapunzel, Mulan, Ariel,Tiana, Sleeping Beauty and Jasmine all got some love from the Disney stars.More VideosVolume 0%Press shift question mark to access a list of keyboard shortcutsKeyboard Shortcutsplay/pauseincrease volumedecrease volumeseek forwardsseek backwardstoggle captionstoggle fullscreenmute/unmuteseek to %SPACE↑↓→←cfm0-9Next UpJennifer Lopez Shares How She Became a Mogul04:350.5x1x1.25×1.5x2xLive00:0002:1502:15 Pandora Media’s stockholders approved Sirius XM’s proposed takeover, and with the deal set to close shortly Roger Lynch will be out as Pandora’s CEO.Lynch will exit once the deal officially closes, the company announced after the shareholder vote Tuesday. Sirius XM CEO Jim Meyer will lead the combined company, which brings together Pandora’s music and audio streaming business and Sirius XM’s core satellite-radio business. Lynch was named CEO in September 2017 after heading Dish Network’s Sling TV.In addition to Lynch’s departure, other senior Pandora execs also exiting include general counsel Steve Bene, CFO Naveen Chopra, and chief human resources officer Kristen Robinson.Sirius XM’s all-stock acquisition of Pandora, first announced in September, is expected to “close shortly” subject to customary closing conditions, according to Pandora. Originally valued at $3.5 billion, the deal is now worth less than $3 billion with the decline in Sirius’ stock since it was announced. Back in November, Lynch — in announcing third-quarter 2018 earnings — had said, “I couldn’t be more excited about Pandora joining forces with SiriusXM. A combined Pandora-SiriusXM will create the world’s largest audio entertainment company, bringing Pandora additional resources to accelerate growth and building on SiriusXM’s leadership in the car, subscription expertise, and unique content.”Sirius XM’s stock has dropped 18% since the Pandora deal was announced. A big reason for that has been “the lack of potential synergy quantification, as well as limited public disclosure from SIRI on Pandora’s future [free cash flow] trajectory under its stewardship,” B. Riley FBR analyst Zack Silver wrote in a note Tuesday. Now that Pandora’s shareholders have OK’d the deal, “we believe SIRI will have more latitude to discuss potential synergies and its pro forma financial outlook” when it reports Q4 earnings on Wednesday (Jan. 30).Under the terms of the deal, each share of Pandora common stock will be converted into 1.44 newly issued shares of Sirius XM common stock. Sirius XM common stock will continue to trade under the existing ticker symbol “SIRI” on the Nasdaq Global Select Market, while Pandora is expected to be delisted from the New York Stock Exchange.Separately Tuesday, SiriusXM announced that its board approved an additional $2 billion of common stock repurchases, taking the company’s total authorization to $14 billion since the inception of the stock-buyback program in early 2013. It also announced a quarterly dividend of 1.21 cents per share of common stock.At the special meeting of Pandora stockholders, holders of approximately 75% of the outstanding voting power of Pandora voting securities were voted, with approximately 97% of the votes cast in favor of the transaction.center_img Popular on Variety last_img read more