这也使得收集有关调度器的数据变得简单，因为其可以在本地文件系统中轻松而又有效地收集数据并存储数据。

It also makes it simple to collect data about the scheduler, because it can easily and efficiently gather data and store it within the local file system.

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一般情况下，这种文件系统非常快，但是一旦需要进行垃圾收集，性能就会慢下来。

Normally, the file system operates very quickly, but when garbage collection is required, performance slows down.

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注意，当挂载文件系统时，会启动一个用户空间程序 nilfs_cleanerd，以提供垃圾收集服务。

Note that when the file system is mounted, a user-space program called nilfs_cleanerd is also started to provide garbage collection services.

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