Performance test of indicator module

- [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.

## Describe the proposal

EN:
The indicator module is a new code. In 3.2 points, it has not been verified by the high concurrency scenario. We need to perform a performance stress test on the new indicator scenario and produce a stress test report based on the stress test results.
The following pressure test tools can be used for pressure test items:
https://github.com/apache/dubbo-benchmark

中文：
指标模块为新增代码，在3.2分之中，未经过高并发场景的验证，需要我们对新增的指标场景进行性能压力测试，并根据压力测试结果出一个压力测试报告。

压力测试项目可以使用如下压测工具：
https://github.com/apache/dubbo-benchmark