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Describe the proposal

EN: With more and more indicator data, indicator conversion and pull will take more time. With low frequency operation for a service, the delay caused by too slow pull will easily lead to the delay of indicator alarm，Try to use certain algorithms to optimize the conversion process

中文：随着指标数据越来越多，指标转换与拉取就需要更多的耗时，随着针对一个服务是低频的操作，如果拉取过慢产生的延迟就容易导致指标告警的延迟，尝试使用一定的算法来优化这个转换过程