JMeter spis przydatnych pluginów to zestaw dodatków, które są dostępne dla użytkowników JMetera, które mogą przydać się osobom zajmującym się testowaniem wydajności. We wpisie wylistujemy poszczególne dodatki z których możemy skorzystać. W przypadku zainteresowania, możemy dodać szersze informacje w zakresie poszczególnych pluginów.
Plugin Manager
JMeter posiada możliwość rozszerzenia swoich możliwości, poprzez zainstalowanie Plugin Managera. JMeter Plugins Manager i pobierz plik JAR. Następnie pobrany plik skopiuj do katalogu gdzie masz zainstalowanego JMetera: lib/ext. Następnie ponownie uruchom JMetera. W zakładce OPTIONS będzie znajdować się Plugin Manager skąd będziesz mógł pobrać dodatki przydatne podczas testów wydajnościowych. Więcej informacji we wpisie na temat plugin managera.
1. JMeter Graphs:
- PerfMon Metrics Collector: To collect server statistics
- Active Threads Over Time: To represent the active threads at any point in time during the test
- Response Times Over Time: To show the average response time of request/transaction
- Transactions per Second: To represent the transaction rate during the test
- Server Hits per Seconds: To draw the request rate generated by JMeter at any point in time. It represents the number of total requests sent by JMeter to server.
- Composite Timeline Graph: This plugin adds a graph correlation feature in JMeter in which you can select multiple graphs and see a composite view for identifying the error.
- Response Codes per Second: To represent the number of response codes per second. Each response code is represented by a different colour line.
- Response Latencies Over Time: To display the latency of each request at any point in time.
- Bytes Throughput Over Time: To represent the amount of sent and received data between JMeter and server at any point in time. It is also called as Data Throughput.
- Response Times vs Threads: This graph sets a relationship between average response time and the number of threads. This graph is as same as ‘Average transaction response time under load’ graph of LoadRunner.
- Transaction Throughput vs Threads: This graph sets a relationship between the transaction and the number of threads.
- Response Times Distribution: To display the response time distribution of the request during the test.
- Response Times Percentiles: To display the percentiles for the response time values. You can get any percentile value of the request using this graph.
2. JMeter Thread Groups
- Ultimate Thread Group: To create the spike test or step-up test scenario
- Concurrency Thread Group: To create the step-up test scenario
- Arrivals Thread Group: To create a goal-based test scenario using target iteration rate.
- Free-Form Arrivals Thread Group: To create a goal-based test scenario using target iteration rate for spike test
3. JMeter Listeners
- Flexible File Writer: This plugin enhance the feature of Simple Data Writer by providing additional and advanced options to write the test result data in a file.
- Non-GUI Console Status Logger: To print short summary log to console while JMeter running in non-GUI mode
- Synthesis Report: This listener has the same format as a Summary or Aggregate report. The only difference is that it has an additional filter option.
- AutoStop: To stop the test when a given condition is satisfied.
4. Plugins Tools
- Inter-Thread Communication: This plugin helps to pass the value from one thread group to another.
- Tool to check Test Plan consistency: To verify the correctness of JMX (JMeter Test Script)
- HTTP Simple Table Server: To transfer the dataset or CSV files to remote load generators in a distributed architecture.
- Merge Results: To simplify the comparison of two or more load tests by merging the results.
5. JMeter Timers
- Throughput Shaping Timer: To create a goal-based test scenario using a target request rate.
6. Plugin Functions
- Custom JMeter Functions: This plugin adds custom functions to JMeter which helps to implement useful logics in the script.
7. Plugins Post-Processors
- XML Format PostProcessor: To format the XML responses. Only recommended for debugging the script.
- JSON To XML Converter: To convert JSON response into XML format
8. Plugin Config Items
- Variables from CSV: This config element plugin helps to fetch the value from the CSV file when the variable name is given in the first column and its value is given in the second column.
9. Plugin Logic Controllers
- Parameterized Controller: This plugin is used to create a reusable test plan modules in which parameter value can be passed.
10. Plugins Samplers
- Dummy Sampler: Dummy Sampler helps to create a custom response which is used to validate the logic of regular expression extractor or post-processor.
- UDP Sampler: To perform the load test for DNS, NTP, TFTP, Boot servers, UDP Sampler adds the feature for one-way or two-way communication.
- HTTP Raw Request: To remove the drawback of HTTP Request, HTTP Raw Request Sampler is introduced with TCP support options.
- HDFS Operations: This plugin is used for Hadoop Distributed File System performance testing by inserting some basic information in the sampler.
- Hadoop Job Tracker Sampler: This plugin helps to perform different counter operations on Hadoop application to retrieve various values.
- Set Variables Action: To set/define the value of a variable.
Źródło: Important JMeter External Plugins | List of Apache JMeter Plugins | (perfmatrix.com)
Podsumowanie
JMeter spis przydatnych pluginów to lista dodatków z których możemy korzystać . Dzięki temu artykułowi będziecie mogli sobie ułatwić tworzenie planu testów. Więcej o JMeterze stale piszemy w dziale dedykowanym dla tego narzędzia.
