performance (perf)怎么读

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performance (perf)英语什么意思：Together with facility, one of the two major factors on which the total productivity of a system depends. Performance is largely determined by a combination of three other factors: throughput, response time, and availability.; 决定一个系统总生产率的两大要素之一。另一个要素是设施。性能本身大体上由吞吐量、响应时间及可用性等三项因素所确定。