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How do you test an application if it is going production for the first time?
kanthrajgowda
- May 23rd, 2008
Few things to consider here during the requirement gathering and planning phase.Benchmark the performance of the application.Benchmark the hardware resourecs required for the application for a given l...
vipin
- Nov 19th, 2007
For testing the application, we need to have the basic scenarios done first,Second step will be to do the End to End testing with E2E scenarios,Third test will be to do the rigorous testing.Final step will be to do the load testing.
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Why do you need correlation in load testing?
gorbysbm
- Apr 13th, 2011
Duplicate question. Do a search for "correlation" to see the many answers.example: http://www.geekinterview.com/question_details/40107
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What are the disadvantages of using commercial performance / load testing tools?
gorbysbm
- Apr 14th, 2011
- you have to pay thousands of dollars to use it- there may be limitations on how many users you can launch without paying even more. There may be features that are disabled unless you pay more-You can't use the tool right away-- you have to wait till a license key is provided for you
kanthrajgowda
- May 23rd, 2008
You need to understand the need for any commercial tool with respect to the kind of technologies you use in your organisation. A tool that do not support the techniologies is waste of time and money. If it can fit into your requirements, there is a considerable ROI...Thanks, Kanthraj.9212264980.
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What is the architecture for client/server protocol in performance testing?
gorbysbm
- Apr 13th, 2011
N-Tier Architechture (Typical): Client Tier(User Machine) Presentation Tier(Webserver) Application Tier (App Server) Data Storage Tier (Database)
kanthrajgowda
- May 23rd, 2008
In Load runner, protocol do not have an architecture. As always with protocols, it defines the communication standards. Any 2 tire application will have a back end database server like oracle, sybase ...
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What is the use of load testing ?
what is defered graphs ? What are the different components in loadrunner?
gorbysbm
- Apr 13th, 2011
I did a google search and was not able to find any info on "deferred graph." AFAIK, the standard terminology for the graphs that give information about CPU, throughput, Error rates, etc, are called "correlation graphs", aka "reports graphs"
Illur Iqbal
- Oct 4th, 2005
Load testing is used to find the the minimum and maximum load where the application can handle. It ensures the usage of the fixed number of users using the application frequently or concurrently this ...
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What usually indicates that your virtual user script has dynamic data that is dependent on you parameterized fields?
gorbysbm
- Apr 13th, 2011
The original post is about parameterization, not correlation.You would know that your script has been parameterized if you see custom variables in the script. for example here is one for login: www.ya...
papayamilkshake
- Sep 11th, 2007
The script should fail when replayed may signifies a dynamic variable. In this case, watch out for "sessionid" or related type of variables. Also, a good way is to re-record the script to detect the differences. - papayamilkshake
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What criteria would you use to select Web transactions for load testing?
Minoo
- Mar 13th, 2006
we can select web transactions from task distribution diagram and transaction profile.
jitender
- Feb 25th, 2006
Select web testing option in add-in
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What is performance baseline testing and at what stage of testing it is used?
semiletov
- Jul 20th, 2011
Baseline testing is testing to rule out possibility that large number of users causing system degradation, which is usually to expose problem that are not related to the actual load. That might be functional problem etc. Usually performed with as lowest number of users as possible, i.e. just 1 user.
Subodh Singh
- Jun 7th, 2007
Performance baseline testing is called Benchmart test. This is the first test under performance testing which is done by the performance test engineer to Compares the performance of a new or unk...
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Load Testing - What should be analyzed.
To determine the performance of the system following objectives to be calculated.1) Response time -: The time in which system responds to a transaction i.e., the time interval between submission of request and receiving response. 2) Think time -: Time taken to select new transaction after response for previous transaction is received. 3)Workload-: Work submitted to system by end user. 4)Throughput-:No...
Anila Philip
- Oct 3rd, 2012
->For a testing a manual tester must add lot of documents and test the work flow , locked or not
->Test the system performance[ie,wen adding more documents it affects system speed or performance]mfsi_chinmayb
- Apr 13th, 2012
In load testing we need to test all of the performance objectives .
There are few to judge the client side performance and few are for server side performance -
Can we do performance testing without using any tool?
anu1726
- Jan 11th, 2014
Manual performance test is possible but highly not recommended becoz for web applications we need to test the application under heavy load eg: e-commerce sites or bankings sites etc..And companies will go for automation tools for such projects
Nagarjuna
- Sep 5th, 2013
Performance testing can be done with out any tool. Like 1) If a product is developed for Windows OS with minimum 1GB RAM. We can test that application below 1 GB RAM. 2) By opening too many applications and test how the required application is performing.
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What is the difference between Load testing and Performace Testing?
anu1726
- Jan 11th, 2014
In real time load test is a part or subset of performance test. In load test we check the application behavior under normal and heavy loads. i.e as the no of vsuers increases how the application be...
N.Naveen Kumar
- Aug 26th, 2013
Load Testing - Load testing is performed to determine a systems behavior under both normal and anticipated peak load conditions
Performance Testing - It involves testing software applications to ensure they will perform well under their expected workload. -
Virtual users
Before starting a load test, we need to know with how many vusers, the server has to be loaded. How will you calculate this vusers count? How will you determine the number of vusers with which the server has to be loaded?
sindhu_gt
- Mar 12th, 2014
Hi,
The number of Vusers the client has to be mention in Requirements.If they dont mention means we have to analize based on the Applicationdadwalm
- May 24th, 2010
a) Either you get the inputs from business in terms of the concurrent users they are looking atorb) You get the requirement as in the number of transactions/ requests per second [100 transactions /sec...
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What are the protocols did you use while testing a web application?
sindhu_gt
- Mar 12th, 2014
We are using web(http/html) Protocol in HP Load Runner and http protocol in IBM RPT tool as well to record any Script by using Web Applications.
gorbysbm
- Apr 13th, 2011
Here is an example list of protocols supported by a tool called LoadUI. the protocols you can test will depend on the protocls supported by your app and the load test tool."loadUI is a tool for L...
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Performance Report Analysis
I am new to load runner tool. Can any one explain me how to Analyse the performance report.
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Vuser Ramp up
What is the significance of Vuser Ramp up in loadrunner scenario? we can load the vusers simultaneously or gradually, but what does this signify from application performance testing point of view?
sindhu_gt
- Mar 14th, 2014
If we dont use the vuser Ramp Up means all vusers will run at atime then the server may crashes.Thats why we will majorly prefers simultaneous rampup.we can also identify at which user it failed also.
ajay.sj
- Aug 28th, 2008
Ramp up mode of doing the performance testing benifits by knowing the application fail at the specific virtual user, which helps the tester to do testing the application below that? failed point for ...
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When we do correlation and Is it same for all projects?
sindhu_gt
- Mar 14th, 2014
correlation we must do if we are working with web applications.why because if we are working with web applications the server generates an Id which is unique.we need to do correlation to that id becau...
ajay.sj
- Sep 1st, 2008
We do correlation only when there is session id conflict for the particular transaction and the process followed to do correlation is same for all the projects and it depends on the performance tool which we are using.
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Why do you need to parameterize fields in your virtual user script?
sindhu_gt
- Mar 14th, 2014
Generally in real user beahaviour we have to do Perfromance Testing.Real users enters different input values in the fields of web applications.so in such a situation the Virtual users need to perform ...
wjosephson
- Dec 19th, 2009
To easily create groups of simultaneous users from a single script that invoke differing response from the server.To investigate response of the system to varying mixes of requests, e.g. 80% of the us...
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Load Testing Interview Questions
Ans