An application runs until the heap is exhausted of free memory, at which point the GC stops all application code, performs a garbage collect, and then lets the application continue.
应用程序一直运行，直至耗尽堆的可用内存，此时GC停止所有的应用程序代码、执行垃圾收集，然后让应用程序继续运行。
It's the long-lived objects, such as ones you might pool, that are expensive to garbage collect.
只 有那些生存周期很长的对象，才适合使用对象池技术，因为对它们进行垃圾回收的成本很高。
The code in Listing 4 shows how the Garbage Collect command is implemented.
清单4中的代码展示了Garbage Collect命令是如何实现的。
Automatic repository packing: Git requires that you explicitly pack and garbage-collect its repositories, while Mercurial performs its equivalent operations automatically.
自动的存储库收缩：Git要求您显式地对存储库进行收缩和垃圾收集，而Mercurial自动地执行功能相当的操作。
As NILFS is log structured, new data is written to the head of the log while old data still exists (until it's necessary to garbage-collect it).
由于NILFS是基于日志结构的，新数据被写到日志的头部，而旧数据仍然保留(直到需要对旧数据进行垃圾收集)。
As NILFS is log structured, new data is written to the head of the log while old data still exists (until it's necessary to garbage-collect it).
由于NILFS是基于日志结构的，新数据被写到日志的头部，而旧数据仍然保留(直到需要对旧数据进行垃圾收集)。
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