The user can specify a goal for the pauses and G1 will do an estimate of how many regions can be collected in that time based on previous collections.
用户可以为停顿率指定一个目标,G1会基于之前的收集对此时可回收的区域数量作出估计。
All hash-based collections assume that an object's hash value does not change while it is in use as a key in the collection.
所有基于散列的集合假设,当对象的散列值用于作为集合中的关键字时它不会改变。
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