-
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...
-
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
-
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
-
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 ...
-
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 ...
-
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.
-
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
-
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.
-
-
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.
-
If you have 4 webservers, 2 App servers, 1 database in production. How do you proceed to test the application in test environment?
mathan_vel
- Sep 18th, 2009
1. First check all the servers are in UP2. Status should be send if there is any problem in server.3. Process should be in queue, and the simultaneous process should proceed up on the server.4. The se...
Mena1710
- Jan 17th, 2008
HiThis all Depends upon your SRS,test plan, Committed Delivarables First we need to do the test based on the functional Requirements. We can follow the below ( Just an outline). It can var...
-
In what situation would you want to parameterize a text verification check?
gorbysbm
- Feb 14th, 2011
Parametirization is the use of variables in your tests, e.g. ${variable} = some_DataYou would use Parametirization for text verification when the text you are checking is a dynamic value.For exam...
hunting_ground
- Jul 31st, 2010
Many applications use dynamic values that change each time you use the application. eg. some server assign a usique session ID for every new session. so by parameterizing this dynamic value we can make sure that text verifiation check result is not affected due to this issue.
-
Automation tool Usage
Why do we use automation tool
rameshbabu.thoomu
- Nov 7th, 2010
The Use of Automation is very simple.. Instead of doing manually tool will do everything. Need to design the freame work for automation then Write the script and excute the step. AUtomation tool will do 100 persons manual work.
-
Web Application Testing
What are the primary steps that you will do to test a Web Application in Load Runner?
reddy_damu
- Sep 17th, 2010
Web application are those which are accessed through browser or internet. Here Servers will be resided in the remote locations. When we access the application, it will get the response from the server.
-
Why we get failed to connect server error in loadrunner controller
I have scripted an application which is AJAX with LR v9.0,the script was working fine but while running test in the controller it is throwing connection timed out error and failed in server connection error. Can anyone help?
dadwalm
- May 24th, 2010
Tell your dev team/ support team to look into the logs for any exceptions.Oftenly, the system is unable to handle the load and the throws timeout.Other problem could be some mis-congiguration on your ...
-
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
-
Establish a Baseline
How do you establish and use a baseline when load testing voice calls?
kurtz182
- Nov 28th, 2009
To establish a baseline during voice load testing, do the following:1) Create a stable test environment that mimics production.2) Exercise a tool that places numerous simultaneous calls in this n...
-
Web Transactions for Load Testing
What criteria would you use to select Web transactions for load testing?
kurtz182
- Nov 28th, 2009
I would consider the following criteria for both normal and performance-critical scenarios:1) Response time: amount of time pages are to be displayed; amount of time transactions are to be submi...
-
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...
-
Error - Insufficient records while executing transaction mix
I am doing load testing on siebel application. I am getting error saying insufficient records despite maximum records kept in the parameter file. I tried the suggestions given by HP saying delete unnecessary files like .idx and delete unnecessary files kept in c:windows... but this doesn't help. Earlier when we started the execution for 1500 users it failed after 50 users giving the above mentioned...
surib4u1985
- Jun 8th, 2009
If you have option enabled like allocate X no.of records per user at the bottom of <pramater list> window, then you will get this error if you dont have sufficient number of records in your inpu...
Load Testing Interview Questions
Ans