We approximate the free memory after a garbagecollection cycle by using algorithms that analyze the variance of free memory statistics.
通过使用分析可用内存统计信息变化的算法，我们可粗略计算垃圾收集周期之后的可用内存。
2
A generational collector is free to use a different collection strategy for different generations and perform garbage collection on the generations separately.
分代收集器对不同的代可以自由使用不同的收集策略，对各代分别进行垃圾收集。
3
The garbage collector performs a collection in an attempt to free address space in generation 0 for the object.