指定您想为每个进程匹配条件应用到原始分配的子分配的数量。
Specify the amount of sub-allocation you want to apply to the original allocation for each process matching criteria.
这一点就降低了添加子项的速度，但是也潜在的节省了内存分配的数量。
This slows down the speed of adding items but does potentially save on the amount of memory allocated.
对象池机制有助于减小在堆上进行的分配的数量，因为可以汇聚应用程序中最常见的对象。
Object pooling helps level out the number of allocations made on the heap, since the most common objects in an application can be pooled.
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