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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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What is throughput and how we can measure it during load testing?
sandy05
- Jul 25th, 2007
Hi,Throughput is nothing but the amount of data return by the server(bytessec) for the request we sent.It is includede in the client side statistics... so while executing the load test Thorughput graph will gerenate...Cheerssandy
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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 is the difference between Scalability testing and load testing?
sudhakar2068
- Aug 16th, 2006
scalability testing : To test the different application of the software or hardware application when it is installed in to the computer.load testing: To test the work application when more application are installed in the operating system.sudhakar kolla 09819859346
contact_samee
- Mar 28th, 2006
Load testing/Stress testing and scalability testing not the same, they have different parameters. -Load testing consists of simulating real-life workload conditions for the application und...
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How is the performance behaviour of the web-application when more application servers are added?
jainbrijesh
- Dec 6th, 2006
It depends on your application if it is behaving good with existing server, i mean if there is no bottleneck, then addition of server will not be sp beneficial for performance as our goal is.Ofcourse,...
ramesh viswanathan
- Aug 27th, 2006
The question is "How is the performance behaviour of the web-application when more application servers are added?"if its a 3-tier archi with web-server, app-server and db-server when u say b...
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What is the basic flow in load testing. i.e. how 3 components of a loadrunner are connected to each other. where is Agent fits in this flow... pls explain with diagram, if possible...Thanx
roopa
- Dec 27th, 2006
Planning the testCreating Virtual Users (VUsers)Creating the scenarioRunning the testAnalyzing the test
meenab
- Dec 18th, 2006
The basic flow in LR for performance testins as followsPlanning the test>Creating Vuser Script>Creting Scenario>Running the scenario>Monitoring the scenario>Analyzing test results
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lr_endtranscation("transcationname",lr_pass)lr_endtranscation("transcationname",lr_fail)">
What is the difference between lr_endtranscation("transcationname",lr_auto)lr_endtranscation("transcationname",lr_pass)lr_endtranscation("transcationname",lr_fail)
Anshoo_Arora
- Nov 22nd, 2007
LR_AUTO: It will return the actual status as detected by the tool.LR_PASS: No matter what status you get, this transaction status will return a PASS code.LR_FAIL: Likewise, this will return a FAIL code.
Raghunath
- Jan 2nd, 2007
U have to give the state of the transaction. In the given case the first one is right as it has a state of transaction. Where in the second case its not given. Every lr transaction u have to give the end statelr_auto is the state of transaction given in first case
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What is performance baseline testing and at what stage of testing it is used
reachsanthan
- Apr 11th, 2008
Testing the application with minimum(we use 10% of total load) no.of users to establish the performance testing goals for any new application or enhanced applications.
Anshoo_Arora
- Nov 7th, 2007
This depends from company to company actually and especially the testers. However, it should be done in the initial load-testing stages and may/may not be used as a benchmark.- Anshoo Arora
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How can data caching have a negative effect on load testing results?
kanthrajgowda
- May 23rd, 2008
Data cacheing do not have a negative effect on load testing results. In iother words the more data is cached on to your primary memory, it boosts the performance.To eliminate the effect of server side cacheing, parameterise the required data wherever necessary.Regards,Kanthraj.9212264980,.
Anshoo_Arora
- Nov 8th, 2007
Have cookies/cached data from the respective server on your machine can decrease transaction response time. This is not good practice when load testing an application. Thus, try to parameterize y...
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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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