[Bug] Threshold of rate limiting mode does not support 1000

[Black-Mamba24]

Issue Description

Type: bug report or feature request

Describe what happened (or what feature you want)

When config 1000, It works normally, config 2000 also limit at 1000tps, when I try 5000, sentinel breakdown

Describe what you expected to happen

I think limiter should support higher count, more than 1000.

How to reproduce it (as minimally and precisely as possible)

1. rule1.setControlBehavior(RuleConstant.CONTROL_BEHAVIOR_RATE_LIMITER);rule1.setCount(2000);

Tell us your environment

linux and win

Anything else we need to know?

[sczyh30]

Hi, currently the rate limiter does not support threshold above 1000 (which means interval < 1ms). We'll address the issue and support microsecond-level interval. Thanks for reporting!