This post covers the important and often misunderstood relationship between files and memory and its consequences for performance.

这篇文章将描述一些重要的并且常常被误解的文件与内存之间的关系，以及由此而来的效率问题。

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In addition to actual files, devices and Shared memory objects can be mapped.

除了实际的文件，设备与共享内存对象都能够被映射。

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Finally, having extra memory on hand allows the file systems to cache files and metadata in memory.

最后，安装更多内存让文件系统可以把文件和元数据缓存在内存中。

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Temporary system files, error reporting logs, memory dump files, and paging files consume additional gigabytes of already scarce user storage.

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If desktop computers and terminals proliferate in hotel rooms and other locales, Dulaney thinks users could more easily carry personal data files and applications around in tiny memory cards that just plug into any available desktop system.

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How many people clear the memory, delete cookies and temporary files when they close down their browser?

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