151-java-performance-jmeter
Use when you need to set up JMeter performance testing for a Java project — including creating the run-jmeter.sh script from the exact template, configuring load tests with loops, threads, and ramp-up, or running performance tests from the project root with custom or default settings. This should trigger for requests such as Improve the code with JMeter performance testing; Apply JMeter performance testing; Refactor the code with JMeter performance testing; Add JMeter support. Part of cursor-rules-java project
What this skill does
# Run performance tests based on JMeter Provide a complete JMeter performance testing solution by creating the run-jmeter.sh script from the exact template, making it executable, and configuring the project structure for load testing. Supports custom loops, threads, ramp-up, and environment variable overrides. **What is covered in this Skill?** - Create run-jmeter.sh in project root from the exact template (no modifications) - Project structure: src/test/resources/jmeter/load-test.jmx, target/ for results - Script options: -l (loops), -t (threads), -r (ramp-up), -g (GUI), -h (help) - Environment variables: JMETER_LOOPS, JMETER_THREADS, JMETER_RAMP_UP - Verify JMeter is installed and available before proceeding **Scope:** Copy the script template verbatim. Do not modify, interpret, or enhance the template content. ## Constraints JMeter must be installed and available in PATH. If not available, show a message and exit. Use only the exact template for the run-jmeter.sh script. - **PREREQUISITE**: Verify JMeter is installed and accessible via `jmeter --version` before creating the script - **CRITICAL**: Copy the run-jmeter.sh template exactly — do not modify, interpret, or enhance - **PERMISSION**: Make the script executable with `chmod +x run-jmeter.sh` - **BEFORE APPLYING**: Read the reference for the exact script template and usage instructions - **EDGE CASE**: If request scope is ambiguous, stop and ask a clarifying question before applying changes - **EDGE CASE**: If required inputs, files, or tooling are missing, report what is missing and ask whether to proceed with setup guidance ## When to use this skill - Improve the code with JMeter performance testing - Apply JMeter performance testing - Refactor the code with JMeter performance testing - Add JMeter support ## Workflow 1. **Verify JMeter prerequisite** Check `jmeter --version` and stop with guidance if JMeter is not installed or not available in PATH. 2. **Read JMeter reference template** Read `references/151-java-performance-jmeter.md` and use the `run-jmeter.sh` template exactly as provided. 3. **Create script and project structure** Create `run-jmeter.sh` in project root, ensure required JMeter directories/files exist, and apply executable permission with `chmod +x`. 4. **Explain usage and environment overrides** Document CLI options (`-l`, `-t`, `-r`, `-g`, `-h`) and environment variable overrides (`JMETER_LOOPS`, `JMETER_THREADS`, `JMETER_RAMP_UP`). ## Reference For detailed guidance, examples, and constraints, see [references/151-java-performance-jmeter.md](references/151-java-performance-jmeter.md).
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