Type of performance test
Performance testing is a comprehensive terminology. It
includes five types of tests such as performance testing, load testing,
scalability tests, volume testing and stress testing.
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1) performance testing
This is the first task and includes testing every part of
the system to detect which part is slow. Based on this test results, efforts
are made to make a response faster.
2) load testing
This test is done to test whether the application or system
is ready for use in terms of expected load or not. The application performance
is checked with the response time needed for certain user loads.
3) Stress testing
This test is done to understand what level of stress or user
number, the system starts to produce an error and whether it can return online
after a massive surge in the user number or crash. The time taken to return
online is another factor that must be taken into account in this test.
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4) scalability testing
Scalability testing is done to ensure that the software
handles an increase in workload effectively. This is done by gradually adding
workload or user and continues to monitor the performance of the software or
application.
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5) volume testing
This ensures how effective the system is able to handle a
large amount of data. The data is then gradually increasing with the use of the
application.
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Performance testing stage
Basically there are 7 important steps in performance
testing.
1) Identify the testing environment:
The test team must identify hardware, software, network
configuration and tools needed to start the test. This can include the same
actual production system or replica. Sometimes a subset of the production
system with the same or lower specifications is also used.
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2) Identify performance metrics:
Performance metrics are very important that determine the
parameters in which performance must be tested. Metric must include time of
response, waiting time, average load time, peak response time, error rate, simultaneous
user, throughput, demand per second, utilization of CPU, memory utilization,
constraints etc. The success criteria are different from the application to the
application. Therefore, the appropriate success criteria must be included in
the metric.
3) Plan and design tests:
At this stage, the testing team must identify the test
scenario by considering user variability, test data and testing parameters.
This can cause more creation than one model for testing.
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4) Configure the testing environment:
At this stage the testing environment consists of hardware,
software, and testing instruments need to be prepared to monitor application
performance or systems.
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5) Take data:
When everything is ready to be tested started and the data
captured on different parameters is captured for analysis.
6) Generation analysis and report:
Data captured in the previous step was analyzed and shared
with the team. Based on corrective action analysis was taken to fix the
problem.
7) Retesting:
The test is re-conducted on the same parameters to test
whether the repair work is sufficient or requires fine adjustment. After this
found testing is finely done using different parameters and improvements, if
needed, done.
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Performance testing advantages
Helpful performance testing -
Value of system appearance for growth
Identify weak points in architecture
Detect bugs in software that cannot be identified otherwise
Tune up system
Verifying system resistance and reliability
When should performance testing?
To save money and time, performance testing must be done at
the beginning of the application or life cycle system development. It helps in
testing basic technology such as network performance, balancing load, performance
server performance, database server performance, and web server performance.
However, this must be done with the expected load level.
Detect and correct performance problems after a live website
can be an expensive proposition for you. As soon as all web pages are built and
testing the workload must begin. After that, every time the module or part of
the software or application is implemented, it must be tested for performance.
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