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How to test load (performance) when web application is running on sever?
sandy05
- Jul 25th, 2007
Hi guys,If web application is running on the server we can test the load test as follows...Based on the criteria (data load) given by the customer we will sent the request to the server... before that...
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What criteria would you use to select Web transactions for load testing?
Anshoo_Arora
- Nov 7th, 2007
You can use a transaction (lr_start_transaction in LR) everytime the client submits a request to the server. As for what criteria is to be used, you can use it whenever you want to test for server response times.
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What criteria would you use to select Web transactions for load testing?
kanthrajgowda
- May 23rd, 2008
Good idea is to get the business profile from the business analyst. Business profile desribes what are the transactions required and number of users doing the particular transaction over a period of time.Thanks, Kanthraj.9212264980
Tanmay Bhide
- Sep 25th, 2007
The criteria can be of two types: Functional based or Technical based.Functional based criteria implies 1. Business priority2. Volume of transactions /day, /hourTechnical based criteria implies1. Complexity of Code2. Search based screens3. Read/Write scenarios
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Consider A scenario where CPU is exhausted, physical RAM has shown release, but no return, and is almost depleted. At this point, what could potentially be wrong with the application.
kanthrajgowda
- May 23rd, 2008
As replied above it could be a case of memory leak. You may confirm memory leak be looking at your app server logs for errors like OurOfMemoryexceptions. Other possible reason could be you RAM may not have neough space..try increasing the RAM size...
ranganath_m
- Sep 25th, 2007
As you have mentioned that, RAM has shown relaese and is almost depleted, i suspect there is memory leak in the application. Because of that only CPU exhausted( i mean Application crashed). So, There ...
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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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What is the criteria for deciding whether a web application needs to be load tested or not, before deploying it in production?
psrvasanthi
- Jul 10th, 2008
Generally first thing need to do test for any kind of application involves four factors :1.configuration 2.functionality 3.performance and 4.security.... (or)For load or performance testing, based on the no. of users and the http respponse. of the application....
subhashini
- Nov 21st, 2007
Generally Load Testing is done for web based applications, where the number of users are more... for eg: websites like ICICI etc need load testing to be done prior deployment.
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How to test the performance of a Flash application?
Anyone knows a tool for testing the performance of a flash application
russp
- May 12th, 2009
This question is applicable to any web application that has components that are processed on the user's browser. (i.e., flash, ajax, applets...) The user's response time is a combi...
kanthrajgowda
- May 23rd, 2008
Flash has client side processing. If you can integrate winrunner/QTP scripts into load runner using GUI license you can measure the response time end to end. Using HTTP protocaol, ine can ony measure the server side response times.Kanthraj.9212264980.
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How can data caching have a negative effect on load testing results?
dadwalm
- May 24th, 2010
When a query runs for the fist time, the system fetches the data from the DB and then stores on cache for later transactions.When the cache is turned ON, for any subsequent requests, the data will be ...
binuhill
- May 19th, 2008
Negative effect will occur because if the cache files get incresed the outpu/result got from LR wont be correct. usuallly its highly recommended to clear cache file before load testing
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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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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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Virtual User Script Multiple Actions
What are the benefits of creating multiple actions within any virtual user script?
patu_ctc
- Nov 18th, 2009
It all depend on you, for example you are creating few orders and you need to book that order and for this requirement you are using two different scripts.Instead of doing this you can simulate both t...
russp
- May 12th, 2009
In relation to the effort required to maintain a script in terms of programming overhead, fewer scripts = less work. However multiple actions within a single script can reduce its portability.&n...
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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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Replay the script without browser in VUGen
Hi All,
I have come across a hypothetical scenario while using VUGen 9.5 (LR Component for recording script).
Scenario is:
1. I have recorded a script using VUGen ( v9.52)on a machine for a web J2EE application.
2. In Run-Time settings-- > Browser Emulation, settings are 1. User Agent: Use custom browsers (Mozilla, IE8,), 2. Simulate browser cache (checked),... -
ETL Testing - Validate Data
How to Validate if my source is a FlatFile and the target is a Database? How do we know the daily data moves from staging to target?
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What are the reasons why parameterization is necessary when load testing the Web server and the database server?
Anshoo_Arora
- Nov 7th, 2007
Generally, parameterization has two advantages:1. Makes scripts smaller/easier to understand2. Helps you use unique data in your scriptAlso, in LR you can use parameterization while working with data & time, when you have data dependancy and in the case of data caching.- Anshoo Arora
purnima
- Jul 21st, 2005
parameterization is done to check how your application performs the same operation with different data.In load runner it is necessary to make a single user to refer the page for several times similar in case of database server.
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What are the types of check points is available in LoadRunner? how to work on database check points?
crespoe2006
- Jun 1st, 2007
Hi ,We have two types of web check in LR1. Image check2. Text checkwhat is Image Check : VuGen allows you to add a user-defined check that searches for an image on a Web page during the run.What ...
sudhakar2068
- Aug 16th, 2006
The check point available in the load runner are start time and end time and rendzervous point.sudhakar kolla09819859346
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What is the difference between lr_error_message and lr_debug _message?
sudhakar2068
- Aug 16th, 2006
error messege occurs in writing the coding of the application. debug messege occurs in the functionality of the application program.sudhakar kolla09819859346
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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...
Load Testing Interview Questions
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