NewLimiter returns a bbr limiter.

WithBucket with bucket ize.

WithCPUQuota with real cpu quota(if it can not collect from process correct);.

WithCPUThreshold with cpu threshold;.

WithWindow with window size.

ErrLimitExceed is returned when the rate limiter is triggered and the request is rejected due to limit exceeded.

BBR implements bbr-like limiter.

DoneInfo is done info.

Stat contains the metrics snapshot of bbr.

DoneFunc is done function.