...复制过来的对象和从Eden区过来的对象），从Survivor1区复制过来的并且还存活的对象，将被复制到"年老代"的年老区(Tenured Space)。Survivor2区中新增加的从Eden区过来的还存活的对象，将复制到Survivor1中，Survivor2被清空。
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You should also analyze GC logs to understand how frequently the tenured space gets collected; an optimal generational application will have very infrequent collection in the tenured space.
还应该分析gc日志，以了解年老代空间回收的频率；最优的分代应用程序进行年老代空间回收操作的频率应该非常低。
The Memory usage for the applications Heap, Non Heap, Permanent Generation and the different memory pools that the JVM has (new generation, tenured generation, survivor space, etc.)
程序对堆、非堆、永久保存区（Permanent Generation），以及JVM包含的不同内存池（新生对象区、长期对象区、存活空间等）的内存使用情况
The young generation, or nursery, USES a semi-space copying collector, and the old, or tenured, generation USES a concurrent mark sweep collector.
年轻(也称为婴儿(nursery))代使用一个半空间复制收集器，而老年(也称为长存的(tenured))代使用并发的标志扫描收集器。
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