How to Simulate 20,000 Local Requests with JMeter

Problem

Local development environments cannot generate the same concurrency and pressure as production systems, making it difficult to evaluate a newly created GET endpoint under load.

Tool

Apache JMeter is a Java‑based load‑testing tool and requires a JDK.

Download the ZIP package from https://jmeter.apache.org/download_jmeter.cgi, unzip it, and on Windows run bin\jmeter.bat to launch the GUI.

Set the interface language to Simplified Chinese via Options → Choose Language → Chinese (Simplified).

Test Plan Configuration

Create a Test Plan, add a Thread Group, and configure the Thread Group to generate 20,000 requests:

Number of Threads (users) = 200

Loop Count = 100

Save the test plan (Ctrl+S).

Add an HTTP Request sampler to the Thread Group (right‑click Thread Group → Add → Sampler → HTTP Request) and fill in the protocol, IP, port, method, and path of the target endpoint.

Start the test with the green triangle button; stop it with the red square button.

Result Collection

Add a Listener such as Aggregate Report (right‑click the HTTP Request sampler → Add → Listener → Aggregate Report) to view metrics.

The Aggregate Report displays aggregated metrics for the 20,000 simulated requests, allowing assessment of service behavior under high concurrency.