In software engineering, performance testing is in general testing performed to determine how a system performs in terms of responsiveness and stability under a particular workload. It can also serve to investigate, measure, validate or verify other quality attributes of the system, such as scalability, reliability and resource usage.
In this presentation which was delivered to testers in Manchester, I help would-be performance testers to get started in performance testing. Drawing on my experiences as a performance tester and test manager, I explain the principles of performance testing and highlight some of the pitfalls.
Performance Testing And Its Type | Benefits Of Performance TestingKostCare
Performance testing is in general, a testing practice performed to determine how a system performs in terms of responsiveness and stability under a particular workload. It can also serve to investigate, measure, validate or verify other quality attributes of the system, such as scalability, reliability and resource usage.
In this presentation which was delivered to testers in Manchester, I help would-be performance testers to get started in performance testing. Drawing on my experiences as a performance tester and test manager, I explain the principles of performance testing and highlight some of the pitfalls.
Performance Testing And Its Type | Benefits Of Performance TestingKostCare
Performance testing is in general, a testing practice performed to determine how a system performs in terms of responsiveness and stability under a particular workload. It can also serve to investigate, measure, validate or verify other quality attributes of the system, such as scalability, reliability and resource usage.
Enterprise software needs to be faster than the competition.
In this presentation we will explore what is performance testing, why it is important and when should you implement these tests.
(*** Selenium Certification Training : https://www.edureka.co/testing-with-selenium-webdriver ***)
This edureka PPT on "Performance Testing Interview Questions" will help you prepare for interviews related to Performance Testing. It also provides the most commonly asked questions about JMeter tool.
Join Edureka’s Meetup community and never miss any event – YouTube Live, Webinars, Workshops etc. https://bit.ly/2EfTXS1
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it is based on the introduction of performance testing and its modules and the process which include performance testing and it consist of name of software or tools which are used to check the performance of any software.
Detailed presentation on performance testing and Loadrunner.
Complete course is available on udemy.
Use below link to get the course for just 20 USD
https://www.udemy.com/performance-testing-using-microfocus-loadrunner-basics-advanced/?couponCode=PTLR20D
Infographic: Importance of Performance TestingKiwiQA
Performance testing help to establish the scalability, speed, and stability of apps. It includes numerous testing types that simulate user scenarios and analyze app performance.
To learn more about performance testing, visit: https://www.kiwiqa.com/load-performance-testing.html
The most important aspect to release any product or application in the market is to deliver a satisfying user experience. And this can only be achieved when the application performs impeccably. To help understand the ways and means to ensure the same, this PPT will shed light on the essential elements under performance testing. To know more on software performance testing, performance testing, app performance testing, web performance testing, website load testing and performance tuning, go through this presentation and gear up for the upcoming ones.
Enterprise software needs to be faster than the competition.
In this presentation we will explore what is performance testing, why it is important and when should you implement these tests.
(*** Selenium Certification Training : https://www.edureka.co/testing-with-selenium-webdriver ***)
This edureka PPT on "Performance Testing Interview Questions" will help you prepare for interviews related to Performance Testing. It also provides the most commonly asked questions about JMeter tool.
Join Edureka’s Meetup community and never miss any event – YouTube Live, Webinars, Workshops etc. https://bit.ly/2EfTXS1
Selenium playlist: https://goo.gl/NmuzXE
Selenium Blog playlist: http://bit.ly/2B7C3QR
Follow us to never miss an update in the future.
Instagram: https://www.instagram.com/edureka_learning/
Facebook: https://www.facebook.com/edurekaIN/
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it is based on the introduction of performance testing and its modules and the process which include performance testing and it consist of name of software or tools which are used to check the performance of any software.
Detailed presentation on performance testing and Loadrunner.
Complete course is available on udemy.
Use below link to get the course for just 20 USD
https://www.udemy.com/performance-testing-using-microfocus-loadrunner-basics-advanced/?couponCode=PTLR20D
Infographic: Importance of Performance TestingKiwiQA
Performance testing help to establish the scalability, speed, and stability of apps. It includes numerous testing types that simulate user scenarios and analyze app performance.
To learn more about performance testing, visit: https://www.kiwiqa.com/load-performance-testing.html
The most important aspect to release any product or application in the market is to deliver a satisfying user experience. And this can only be achieved when the application performs impeccably. To help understand the ways and means to ensure the same, this PPT will shed light on the essential elements under performance testing. To know more on software performance testing, performance testing, app performance testing, web performance testing, website load testing and performance tuning, go through this presentation and gear up for the upcoming ones.
The client was implementing an enterprise HR system and needed to know that their chosen solution would meet their needs.
Visit <a>HP LoadRunner Performance Testing Case Study</a> for more information on this project.
http://www.optimusqa.com/case-study/performance-testing/
An Introduction to Software Performance EngineeringCorrelsense
Software performance engineering is becoming increasingly important to businesses as they look to improve the non-functional performance of applications and get more out of IT investments. By leveraging performance engineering techniques, IT professionals can be indispensable in building and optimizing scalable systems. This
introductory course will teach you the essentials of software
performance engineering including :
• The performance challenges faced by Enterprise IT today
• What is software performance engineering (SPE)?
• Best practices for building scalable software systems
• The approaches to integrating SPE into IT project lifecycles
• Common frameworks for measuring application performance and service levels
• The impact of SPE on software developers, testers, capacity planes,
and other IT professionals
• Case studies from the finance, retail, and insurance industries
Instructor: Walter Kuketz, SVP and CTO, Collaborative Consulting
This training is sponsored by Correlsense, Collaborative Consulting,
and New Horizons
With every passing day, organizations are becoming more and more mindful about the performance of their Software Products. However, most of them still on look-out for the basics of Performance Engineering.
According to a recent study by Gartner, fixing performance defects near the end of the development cycle costs 50 to 100 times more than the cost required for fixing it during the early phase of development. Hence, if a product suffers from serious performance issues it can be completely scrapped.
Performance Engineering ensures that your application is performing as per expectations and the software is tested and tuned to meet specified or even the unstated performance requirements.
We present you with a webcast on Performance Engineering Basics that would walk you through the elements and process of performance engineering, and also offers a methodical process for the same.
It also offers details on a load testing tool, and describes how best to utilize it.
Visit http: http://www.impetus.com/featured_webcast?eventid=10 to listen to the entire webcast (20 minutes).
OR
To post any queries on Performance Engineering, write to us at isales@impetus.com
For case studies and articles on performance engineering please visit: http://www.impetus.com/plabs/casestudies?case_study=&pLabsClustering.pdf=
This slide you give you the process of finding the performance bottleneck instantly.This process can be applied for any N tier architecture and any technology.
Are you new to performance testing? This slides are for those of you who want to explore and learn where and how to start testing application performance. During this web event, our performance testing experts will reveal the key pieces and parts of performance testing, including the phases of the test and how HP LoadRunner supports each phase.
Ca Baseline and Post test assessment report 2007 12 oct07William Kapambwe
A quasi experimental evaluation design study comparing the impact of using the Continuous Assessment strategy in intervention and control schools in Zambia
Narendra Ponnuswamy - Performance Testing Effort - Estimation or Guesstimation? TEST Huddle
EuroSTAR Software Testing Conference 2009 presentation on Performance Testing Effort - Estimation or Guesstimation? by Narendra Ponnuswamy. See more at conferences.eurostarsoftwaretesting.com/past-presentations/
Let’s focus our attention on recovery testing in this blog. We will see a few things related to this type of testing. For details regarding software testing, you can join a software testing course in Pune.
Load Runner Methodology to Performance Testingijtsrd
The paper covers the most important part of testing which is essential for testing the performance of application before going 'Live'. In my research and analysis with Microfocus owned tool 'Load Runner', we will discuss about it deals with web based application and approach to calculate transaction per hour TPH for test execution. As tool supports many protocols based on the nature of application. Performance testing is used to analyze the real time response time for business transaction. Application be constant with increasing load or with simultaneous users should not affect the performance of the application, is our main motto as a Performance Tester Engineer. Ashish Kumar ""Load Runner: Methodology to Performance Testing"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-2 , February 2020,
URL: https://www.ijtsrd.com/papers/ijtsrd30155.pdf
Paper Url : https://www.ijtsrd.com/computer-science/cognitive-science/30155/load-runner-methodology-to-performance-testing/ashish-kumar
How to fit Performance Testing in Devops environment.pptx.pdfKnoldus Inc.
n this session we will learn about the performance testing and how to fit the performance testing in devops environment, process of performance testing in devops CI/CD pipeline and how we can integrate CI/CD pipeline with performance testing tool like Jmeter.
Ensuring Effective Performance Testing in Web Applications.pdfkalichargn70th171
A 2022 report by Gartner noted that 25% of users will spend one hour per day in the metaverse. Draw your attention to the trend this statistic highlights. Users are more likely to spend their waking hours online than otherwise.
Performance testing Web Application - A complete GuideTestingXperts
Application Performance testing validates various factors and checks applications to ensure and maintain their reliability and scalability. Leverage TestingXperts Performance testing services to enhance your application performance and such high performing apps are bound to drive more traffic and help spread your brand
Mastering performance testing_ a comprehensive guide to optimizing applicatio...kalichargn70th171
In an increasingly digitized world where software applications shape our daily routines, the importance of their performance cannot be overstated. From browsing a website, and streaming content, to using an app for online shopping or banking - seamless, fast, and efficient operation is expected by end-users. Performance can be a make-or-break factor for the success of a software application, and therein lies the significance of performance testing.
Software testing is the process of executing software in a controlled manner. It is often used in association with the terms verification and validation. Verification is the checking or testing of items, including software, for conformance and consistency with an associated specification. Software testing is just one kind of verification, which also uses techniques such as reviews, analysis, inspections and walk throughs. Validation is the process of checking that what has been specified is what the user actually wanted.
Java is a relevant subject area taught in all computer science degree programs. This object-oriented computer language is used to write a variety of Software Applications.
HP LoadRunner software allows you to prevent application performance problems by detecting bottlenecks before a new system or upgrade is deployed. The testing solution LoadRunner enables you to test rich Internet applications, Web 2.0 technologies, ERP and CRM applications, and legacy applications. It gives you a picture of end-to-end system performance before going live so that you can verify that new or upgraded applications meet performance requirements
Business analysis interview question and answersGaruda Trainings
Business Analysis is the process of understanding business change needs, assessing the impact of those changes, capturing, analyzing and documenting requirements and then supporting the communication and delivery of those requirements with relevant parties.The person who carries out this task is called a business analyst or BA.
Join Quality Center Online Training now
Quality Center Testing training course is intended by Software Testing professionals with a united familiarity of nearly 10 years in Software Testing industry. The expansion of this Quality Center course was the summit of all these Software Testing professionals where they shared their mysterious ideas, concepts, real time experience and problems which resulted in this Quality Center Testing course.
P2Cinfotech is one of the leading, Online IT Training facilities and Job Consultant, spread all over the world. We have successfully conducted online classes on various Software Technologies that are currently in Demand. To name a few, we provide quality online training for QA, QTP, Manual Testing, HP LoadRunner, BA, Java Technologies, SEO, Web Technologies, .NET, Oracle DBA etc.
Basic java important interview questions and answers to secure a jobGaruda Trainings
P2Cinfotech is one of the leading, Online IT Training facilities and Job Consultant, spread all over the world. We have successfully conducted online classes on various Software Technologies that are currently in Demand. To name a few, we provide quality online training for QA, QTP, Manual Testing, HP LoadRunner, BA, Java Technologies, SEO, Web Technologies, .NET, Oracle DBA etc.
Dot net Online Training | .Net Training and Placement onlineGaruda Trainings
The .NET Framework is a software framework, developed by Microsoft that was primarily intended to run on Windows operating system. Microsoft started developing it since late 1990’s and its first beta version was released in the end of 2000, however its first commercial version was released in the year of 2002. Wide genres of applications can be developed using .NET framework and it is hugely popular in the IT market currently.
P2Cinfotech is one of the leading, Online IT Training facilities and Job Consultant, spread all over the world. We have successfully conducted online classes on various Software Technologies that are currently in Demand. To name a few, we provide quality online training for QA, QTP, Manual Testing, HP LoadRunner, BA, Java Technologies.
Unique Features of P2Cinfotech:
1. All online software Training Batches will Be handled by Real time working Professionals only.
2. Live online training like Real time face to face, Instructor ? student interaction.
3. Good online training virtual class room environment.
4. Special Exercises and Assignments to make you self-confident on your course subject.
5. Interactive Sessions to update students with latest Developments on the particular course.
6. Flexible Batch Timings and proper timetable.
7. Affordable, decent and Flexible fee structure.
8. Extended Technical assistance even after completion of the course.
9. 100% Job Assistance and Guidance.
Courses What we cover:
Quality Assurance
Business Analsis
QTp
JAVA
Apps Devlepoment Training
Register for Free DEMO:
www.p2cinfotech.com p2cinfotech@gmail.com +1-732-546-3607 (USA)
Interview questions and answers for quality assuranceGaruda Trainings
Future of Software Testing is always good... as long as developers are developing projects we will be testing them and even when they stops developing then also we will test the enhancements and maintenance etc... Testing will always be needed
Customer will never accept the product Without complete testing .Scope of testing is always good as it gives everyone a confidence of the work we all are doing...Its always good to add more processes while doing testing so that one should not think that testing is a boring and easy job....Process is very imp. for testing.
Register for Free DEMO: www.p2cinfotech.com
email id: p2cinfotech@gmail.com
+1-732-546-3607 (USA)
P2Cinfotech is one of the leading, Online IT Training facilities and Job Consultant, spread all over the world. We have successfully conducted online classes on various Software Technologies that are currently in Demand. To name a few, we provide quality online training for QA, QTP, Manual Testing, HP LoadRunner, BA, Java Technologies.
Unique Features of P2Cinfotech:
1. All online software Training Batches will Be handled by Real time working Professionals only.
2. Live online training like Real time face to face, Instructor ? student interaction.
3. Good online training virtual class room environment.
4. Special Exercises and Assignments to make you self-confident on your course subject.
5. Interactive Sessions to update students with latest Developments on the particular course.
6. Flexible Batch Timings and proper timetable.
7. Affordable, decent and Flexible fee structure.
8. Extended Technical assistance even after completion of the course.
9. 100% Job Assistance and Guidance.
Courses What we cover:
Quality Assurance
Business Analsis
QTp
JAVA
Apps Devlepoment Training
Register for Free DEMO:
www.p2cinfotech.com p2cinfotech@gmail.com +1-732-546-3607 (USA)
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
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training@p2cinfotech.com
What is Performance Testing?
Performance Testing is performed to determine response time of the some
components of the system perform under a particular workload. It is generally
measured in terms of response time for the user activity. It is designed to test the
overall performance of the system at high load and stress condition It identifies the
drawback of the architectural design which helps to tune the application. It
includes the following:
Increasing number of users interacting with the system.
Determine the Response time.
Repeating the load consistently.
Monitoring the system components under controlled load.
Providing robust analysis and reporting engines.
What is the testing lifecycle?
There is no standard testing life cycle, but it is consist of following phases:
Test Planning (Test Strategy, Test Plan, Test Bed Creation)
Test Development (Test Procedures, Test Scenarios, Test Cases)
Test Execution
Result Analysis (compare Expected to Actual results)
What are the drawbacks of manual load testing?
Drawbacks of manual load testing:
Simulation of manual load testing is difficult, because all the real users need
to perform the operations continuously.
Results collection will become very difficult, as the results are captured at
each user.
Results correlation may not be accurate, as there are delays between user
actions.
Load testing for loner durations (For example a week), will not be possible
with manual load testing. As the real users work max of 8 hours a day
Manual load testing is very expensive, as the real users needs to paid hourly
charges
Performance Testing Interview Questions And Answers
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Concurrency scenario simulation in manual load testing is very difficult with
real users. Because real users will be having the delays in performing
operations on the application.
What is a protocol?
Set of rules defined for transmitting the information between the two or multiple
systems is called as a protocol.
Protocol is used for recording the test scripts in most of performance and load
testing tools. So, as a performance / load test engineer, you need to know the
protocols used for accessing the application, so that you can choose the right
protocol for recording the script. You can get the protocol related information from
the architects, not from the developers.
What is concurrent user hits in load testing?
When the multiple users are running the load test, to hit a common step in the
application without any millisecond difference is called a concurrent user hit. The
concurrency point needs to be added as a one of the step for the virtual users. So,
that the virtual users will wait at the concurrency point, if they reach early. Once
all the users reached to the concurrency point, they start hitting the requests.
What is hardware tuning in load testing?
If any hardware specific bottleneck is identified during the load test, the process of
eliminating the bottleneck is called as hardware tuning.
What is software tuning in load testing?
The process of fixing the software bottlenecks is called software tuning.
Identifying the software level bottlenecks by profiling the code, database etc. Fine
tuning or modifying the software to fix the bottlenecks is called software tuning.
Who will do the tuning after load testing?
Software tuning will be done by the developers, who are responsible for improving
the systems performance. Performance Testers can give recommendations /
suggestions to the development team for tuning software. But, tuning will be done
by only developers.
Performance Testing Interview Questions And Answers
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What is profiling?
A process of pin pointing a performance bottleneck at the minute level is called
profiling. Profiling will be done by the performance testers or developers
(Performance engineering teams).
Profiling will be done in any layer (presentation, business or data base layers) of
application under test. If we need to do the profiling at the application server
(business layer), we may need to use application server performance profiling
tools. When the application server is been profiled, you identify the code level
issues such as high CPU or memory intensive APIs.
If you are profiling the database using the database profiling tools, you can identify
the issues such as the number of SQLs executed, high cost queries, full table scan
queries etc.
How to identify a memory leak?
To identify a memory leak, we need to run the load test for longer duration. When
the load test runs for long duration, if there is any memory leak, the memory of the
respective server will be growing gradually.
Why Performance Testing is performed?
Performance Testing is performed to evaluate application performance under some
load and stress condition. It is generally measured in terms of response time for the
user activity. It is designed to test the whole performance of the system at high
load and stress condition.
Example: Customer like to withdraw money from an ATM counter, customer
inserts debit or credit card and wait for the response. If system takes more than 5
min. then according to requirements system functioning is fail.
Type of Performance Testing:
Load: analogous to volume testing and determine how application deal with
large amount of data.
Stress: examine application behavior under peak bursts of activity.
Capacity: measure overall capacity and determine at what time response
time become unacceptable.
Performance Testing Interview Questions And Answers
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What are tools of performance testing?
Following are some popular commercial testing tools are:
LoadRunner(HP): this for web and other application. It provides a variety
of application environments, platforms and database. Number of server
monitors to evaluate the performance measurement of each component and
tracking of bottlenecks.
QAload(Compuware): used for load testing of web, database and charbased system.
WebLoad(RadView): it allows comparing of running test vs. test metrics.
Rational Performance Tester (IBM): used to identify presence and cause
of system performance bottlenecks.
Silk Performer (Borland): allow prediction of behavior of e-business
environment before it is deployed, regardless of size and complexity.
Explain the sub-genres of Performance testing.
Following are the sub-genres of Performance Testing:
Load Testing: it is conducted to examine the performance of application for
a specific expected load. Load can be increased by increasing the number of
user performing a specific task on the application in a specific time period.
Stress Testing: is conducted to evaluate a system performance by increasing
the number of user more than the limits of its specified requirements. It is
performed to understand at which level application crash.
Volume Testing: test an application in order to determine how much
amount of data it can handle efficiently and effectively.
Spike Testing: what changes happens on the application when suddenly
large number of user increased or decreased.
Soak Testing: is performed to understand the application behavior when we
apply load for a long period of time what happens on the stability and
response time of application.
What is performance tuning?
To improve the system performance we follow a mechanism, known as
Performance tuning. To improve the systems performance there are two types of
tuning performed:
Performance Testing Interview Questions And Answers
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Hardware tuning: Optimizing, adding or replacing the hardware
components of the system and changes in the infrastructure level to improve
the systems performance is called hardware tuning.
Software tuning: Identifying the software level bottlenecks by profiling the
code, database etc. Fine tuning or modifying the software to fix the
bottlenecks is called software tuning.
What is concurrent user hits in load testing?
When the multiple users, without any time difference, hits on a same event of the
application under the load test is called a concurrent user hit. The concurrency
point is added so that multiple Virtual User can work on a single event of the
application. By adding concurrency point, the virtual users will wait for the other
Virtual users which are running the scripts, if they reach early. When all the users
reached to the concurrency point, only then they start hitting the requests.
What is the need for Performance testing?
Performance testing is needed to verify the below:
Response time of application for the intended number of users
Maximum load resisting capacity of application.
Capacity of application to handling the number of transactions.
Stability of application under expected and unexpected user load.
Ensuring that users have proper response time on productionQ7. What is the
reason behind performing automated load testing?
Following drawbacks of manual Load Testing that leads to Automation load
testing:
Difficult to measure the performance of the application accurately.
Difficult to do synchronization between the users.
Number of real time users are required to involve in Performance Testing
Difficult to analyze and identify the results & bottlenecks.
Increases the infrastructure cost
Performance Testing Interview Questions And Answers
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What are the exiting and entering criteria in the performance
testing?
We can start the performance testing of application during the design. After the
execution of the performance testing, we collected the results and analyzed them to
improve the performance. The performance tuning processed will be performed
throughout the application development life cycle. Performance tuning is
performed which is based on factors like release time of application and user
requirements of application stability, reliability and scalability under load, stress
and performance tolerance criteria. In some projects the end criteria is defined
based on the client performance requirements defined for each section of the
application. When product reaches to the expected level then that can be
considered as the end criteria for performance testing.
How do you identify the performance bottlenecks situations?
Performance Bottlenecks can identify by monitoring the application against load
and stress condition. To find bottleneck situation in performance testing we use
Load Runner because provides different types of monitors like run-time monitor,
web resource monitor, network delay monitor, firewall monitor, database server
monitor, ERP server resources monitor and Java performance monitor. These
monitors can help to us to determine the condition which causes increased
response time of the application. The measurements of performance of the
application are based on response time, throughput, hits per sec, network delay
graphs, etc.
What activities are performed during performance testing of any
application?
Following activities are performed during testing of application:
1. Create user scenarios
2. User Distribution
3. Scripting
4. Dry run of the application
5. Running load test and analyzing the result.,
Performance Testing Interview Questions And Answers
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How can we perform spike testing in JMeter?
Spike Testing is performed to understand what changes happens on the application
when suddenly large number of user increased or decreased. Sudden changes in the
number of user by increasing or decreasing at certain point of application and then
monitoring the behavior. In JMeter spike testing can be achieved using
Synchronizing Timer. The threads are blocked by synchronizing the timer until a
particular number of threads have been blocked, and then release them at once thus
creating large instantaneous load.
What is distributed load testing?
Distributed load testing: in this we test the application for a number of users
accessing the application at a same time. In distributed load testing test cases are
execute to determine the application behavior. Now application behavior is
monitored, recorded and analyzed when multiple users concurrently use the
system. Distributed load testing is the process using which multiple systems can be
used for simulating load of large number of users. The reason for doing the
distributed load testing is that to overcome the limitation single system to generate
large number of threads.
Explain the basic requirements of Performance test plan.
Any Software Performance Test Plan should have the minimum contents as
mentioned below:
Performance Test Strategy and scope definitions.
Test process and methodologies.
Test tool details.
Test cases details including scripting and script maintenance mechanisms.
Resource allocations and responsibilities for Testers.
Risk management definitions.
Test Start /Stop criteria along with Pass/Fail criteria definitions.
Test environment setup requirements.
Virtual Users, Load, Volume Load Definitions for Different Performance
Test Phases.
Results Analysis and Reporting format definitions
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What is throughput in Performance Testing?
Throughput in Performance testing is the amount of data sent by the server in
responds to the client request in a given period of time or it is the number of units
of work that can be handled per unit of time. The throughput is measured in terms
of requests per second, calls per day, hits per second, reports per year, etc. In most
of the cases, the throughput is calculated in bits per seconds. Higher the throughput
value, higher the performance of the application It is includes the client side
statistics.
What are the automated Performance testing phases?
The phases involved in automated performance testing are:
Planning/Design: This is the primary phase where team will be gathering
the requirements of the performance testing. Requirements can be Business,
Technical, System and Team requirements.
Build: This phase consists of automating the requirements collected during
the design phase.
Execution: it is done in multiple phases. It consists of various types of
testing like baseline, benchmarking testing
Analyzing and tuning: During the performance testing we will be capturing
all the details related to the system like Response time and System
Resources for identifying the major bottlenecks of the system. After the
bottlenecks are identified we have to tune the system to improve the overall
performance.
What is baseline testing?
Baseline testing is a testing which is performed on the application before coming to
any conclusion. It can be either the verification or validation process which
provides an idea of what the next stage has to do. It is very important testing
technique, if done properly, 85% of performance problems can be identified and
solved when proper baseline tests are done.
Defect Tracking
Reporting
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What is the difference between baseline and benchmark testing?
The differences between baseline and benchmark testing are:
Baseline testing is the process of running a set of tests to capture
performance information. This information can be used as a point of
reference when in future changes are made to the application where as
Benchmarking is the process of comparing your system performance against
an industry standard that is given by some other organization.
Example: We can run baseline test of an application, collect and analyze
results, and then modify several indexes on a SQL Server database and run
the same test again, using the previous results to determine whether or not
the new results were better, worse, or about the same.
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