stretch factor meaning in Chinese

伸长因数

The premise to assure qos is to provide sufficient resource to meet demands . we come up with a method to partition the resources of web cluster for each class with its resource demand and priority requirement taken for granted , where system processing time or average access rates is summed up for each class periodically and resource demands is evaluated with stretch factor as performance metric . also the nodes marked in number will be orderly assigned to the classes ordered in priorities , which helps to maintain data locality and improves memory cache hits
资源满足需求是实现服务质量保证的前提，为满足业务类动态的资源需求，我们提出一种支持业务类优先级和资源需求的资源划分方法，通过按周期对业务类请求处理时间或平均访问率进行统计，以响应扩展因子为质量指标对业务类预期的资源需求作出评估，采取按主机编号有序地分配给按优先级排序的业务类，减少业务类资源变动和提高主存cache命中率。