I learn Gatling using the resources I found online and experimentation. Just google "Gatling tutorial", there are plenty of links to pages showing Gatling basics, many focus on different aspects so it's useful to read a number of them. I
always found official resource helpful, The Gatling documentation 3.0 is pretty good as well, they also have an Advanced ...
You're taking the words out of context:
You should test at the maximum load that you expect to encounter. In order to accurately assess demand, you can run a 1% test to determine how much traffic will flow to your new service.
With regards to this assess demand recommendation, it's more about setting up the environment of proper size.
For example, you ...
It completely depends on your configuration and use.
Generally as user demand grows over time a company will add resources (servers, memory, faster database, key-value stores) to ensure that user response time stay within what they determine (or allow) to be acceptable limits. When front-end revenue starts to drop this is a big place to look.
So in the ...
It may. If it is increasing as observed it suggests that some part of your system under test (SUT) is approaching overload. A common approach to load testing is to run the test at a slowly increasing number of threads. Expect to see fairly constant response times from the start of the test until reaching some number of threads and after that the response ...
If you don't need a browser UI, JMeter can do this pretty easily.
You could record HTTP traffic in a browser using JMeter's proxy listener, although it sounds like the workflow might just involve a couple different URLs -- Maybe it's just a GET to /somehost/create and then a bunch of subsequent POSTs to /somehost/edit with the document ID.
If that's the ...
Jmeter does not operate with real browsers. It only simulates signals to the server like they would be sent if you would use real browser.
However it is possible to buld the scenario you've described in your question. It requires pretty much basic knowledge so you can easily find tutorial in Google.
UPD: there is the way to integrate webdriver script into ...
The goal of testing is to prove that certain kinds of problems are absent from the product. But what if a test fails and uncovers that there is a problem? You want to know that as soon as possible, so that the problem can be rectified without costing the company too much money in terms of downtime, lost revenue due to late delivery, etc.
On the other hand, ...
First of all, every empirical analysis is fragile to factors out of the modeling:
Every model of how things work is necessarily a sub-set of factors than the whole reality. For some fields, such as physics, we can model things with fairly security. Economics, on the other hand, have already discover than analytical approach is more appropriated.
Make the load testing part of your performance suite so it runs automatically when you push branch commits to your CI system and fails when user experience deteriorates. The level at which that happens, e.g. slow slow responses is something you will need to define.
I also recommend you consider creating functional tests and then making them part of your ...
Would you rather use your own test frameworks in WSO2? Or should
existing test frameworks be connected to WSO2 via Jenkins?
In your case I would research if you can use the WSO2 testing framework in combination with Cucumber/Serenity. Make some proof of concepts of all situations.
Should integration testing be performed on the staging environment?
There are lots of unknowns in your question to give an answer and thus to define a proper experiment.
Instability point. You said you want to find maximum throughput until the application becomes unstable. How do you define instability of your application?
When error rate increases to 20%, 40%, 50%? What makes an error? HTTP 500 response? Connection drop ...
That is a html response. You will need to add an extractor to parse the HTML and extract the data. Using Jmeter right click on the thread group and select post processors, then CSS selector extractor. Once added define the variable name as var1, set the CSS selector expression to iframe, set the attribute to sessionKey, set match number to 1 and tick box for ...
Seems there is a way, first Google hit on "jmeter socket testing":
Mar 05 2016
At the moment the only easy way to implement WebSocket testing with
JMeter is to use JMeter WebSocket Sampler by Maciej Zaleski. It's the
only RFC6455-compliant extension which supports reusing one TCP
session and it is easy to install and use.
Add -f command line argument (available since JMeter 2.13) to your JMeter startup line like:
jmeter -n -t C:\apache-jmeter-5.1.1\apache-jmeter-5.1.1\bin\DeviceManagementSystem1.jmx -l C:\Users\user\Desktop\Test\Reports\Report.csv -f -e -o C:\Users\user\Desktop\Test\Reports\Htmlreport\Report
This parameter will "tell" JMeter to overwrite the existing ...
The exception clearly states that Sequence (?<...) not recognized
As per jmeter documentation https://jmeter.apache.org/usermanual/regular_expressions.html,
Lookbehind expression (?<=) is not supported.
Here we have 5 groups, the actual token is in the 4th group and to get just the token value set template ...
You can specify your test desired duration via "Duration (seconds)" input of the Thread Group
If you want to have "stable" load of 1000 concurrent users after the ramp-up time make sure to tick "Infinite" box next to "Loop Count"
You can observe how many virtual users were online in this or that period of your test execution using Active Threads Over Time ...
If your application prohibits authorization to one user several times, there are two possible ways:
Create as many test user as you need to run concurrently and use their unique credential for each session. You can use a CSV Data Set Config for it.
Ask developers to hardcode test login to allow this login without limitation.
Most probably your system simply doesn't allow multiple registrations using the same credentials set, looking into your request body "suspicious" parameters are:
Well-behaved load test should represent real life application usage as close as possible, it means that each JMeter thread (virtual user) must represent a real user. Two ...
If you're using JMeter's HTTP Request samplers to conduct the load onto API endpoint(s) you stress the server. If the API executes a database call under the hood the database is experiencing the load as well.
If you're using JMeter's JDBC Request samplers to conduct the load onto the database then only the database is experiencing the load, the server ...
Since I defined 1 as number of threads in our thread group , will it
fire the above 4 requests sequentially or parallel ?
As said in the manual,
samplers tell JMeter to send requests to a server and wait for a
response. They are processed in the order they appear in the tree.
If I had defined 2 as number of threads in our thread group
Don't share credentials on public websites, it is not safe
In order to perform login:
Add HTTP Request sampler and configure it as follows:
Add HTTP Header Manager as a child of the HTTP Request sampler and configure it like:
You can double check that the request is successful (or not) using View Results Tree listener
Going forward instead of creating a ...
Web application testing services always include Load test and Stress test to check the website performance.
Load testing is performed to recognize the upper limit of the system
Stress testing is performed to check how the system responds under extreme load i.e beyond the limit
Example of Stress testing would be testing a website with a sudden high number ...
Load Testing - is putting your system under anticipated load, for example if you expect 1000 users concurrently accessing your system - "Load Testing" would be simulating this 1000 users and verifying that there are no errors, response time is acceptable, etc.
Stress Testing - is basically the process of identifying your system boundaries, to wit even if you ...
This sounds like Canary testing, where you select a subset of users and try out new software with them. The idea is that you get to minimize risks by not flipping everyone onto the new version at once.
You can observe how this group gets on and decide to roll out further if it looks good.
You can miss some scaling issues because you won't have the load.
I found out that the reason for faster-than-real-browser port recycling was the default Jmeter httpclient parameter. When I used
the problem seemed to go away - Jmeter uses the same port longer now. I also set
which on my ...
Ideally you should have the same response time for any number of users.
In reality the situation is different, even applications are capable of scaling - the scalability factor will never be ideal so performance will degrade.
Normally if you start with 1 virtual user and gradually increase the load application will be handling more and more requests with ...
Yes, writes complicate automated performance tests. I dealt with a similar project by using a recording tool to capture some "canonical" user interactions, and then writing code to automate those interactions. The code took care of extracting IDs from responses and then injecting those IDs into subsequent requests.
Please use setupThread group to prepare the test environment say test data configuration or like wise that needs to be executed only once before the testing actually begins.