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Consider a benchmark that aims to determine the time it takes to access an array element: the task should not create the array.
假设一次基准测试希望度量出访问某个数组元素所用的时间：这个任务应该不用创建数组。
Note that Benchmark by default executes the task several times in order to gather statistics, and these multiple executions have the nice side effect of eliminating OSR as a performance issue.
注意，Benchmark在默认情况下会多次执行任务来收集统计数据，多次执行的副作用是消除OSR对性能的影响。
Another approach (which the Benchmark class USES) is simply to execute the task continuously for a predetermined, reasonably long time.
另一种方法是在一个预先确定的长度合理的时间段内连续执行任务(benchmark类就使用这种方法)。
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