而直接I/O 可以避免使用文件系统缓冲区，因而对于磁盘的读写更为高效。
Direct I/O bypasses the use of the file system buffers, and therefore is more efficient for reads and writes that go to disk.
不幸的是，如果您没有认真地进行NFS优化，那么您的网络文件系统就可能无法高效地工作。
Unfortunately, if you don't pay attention to NFS tuning, you might have a poorly performing Network File System.
象reiserfs一样，XFS使用逻辑日志；即，它不象ext3那样将文字文件系统块记录到日志，而是使用一种高效的磁盘格式来记录元数据的变动。
Like ReiserFS, XFS USES a logical journal; that is, it does not journal literal filesystem blocks like ext3, and instead USES an efficient on-disk format to log metadata changes.
例如，一种文件系统可能是以提高速度为目的而优化的，另一种文件系统偏重高效地使用空间，还有一种文件系统偏重于防止数据丢失或损坏。
For example, one file system may be optimized for speed, another for efficient use of space, and yet another for durability against data loss or corruption.
简介：虚拟文件系统(VFS)是一个抽象概念，它具有极其高效的用途。
Summary: a virtual filesystem (VFS) is an abstraction with surprisingly productive USES.
ext4是首个专门为Linux设计的文件系统，并且事实证明它是高效、稳定、强大的文件系统。
It was the first file system designed specifically for Linux and has proved one of the most efficient, stable, and powerful file systems available.
现在，我们最后来了解一下ext3文件系统是如何高效地提供元数据和数据日志记录，以避免在本文前面部分所描述的数据毁坏问题的。
And now, we finally get to see how the ext3 filesystem effectively provides both metadata and data journaling, avoiding the data corruption problem I described earlier in this article.
在BSD和MacOS系统中比较有名的是kqueue，它可以高效地实时跟踪Linux文件系统的变化。
What's known as kqueue on BSD and Mac OS X provides an efficient way to trace actions in the filesystem on Linux in real-time.
文件系统过滤驱动技术是解决文件安全性问题的一种稳定、高效、可靠的技术实现手段。
Nowadays, file system filter driver is one kind of technology means, which is stable, high-effect, reliable for solving the security problem of files.
利用文件系统存储这些信息，利用Hash碰撞分页算法，加上最新数据的内存缓存，实现高效的信息检索。
Use of document storage systems such information, the use of tabs collision Hash algorithm, with the latest data cache memory to achieve efficient information retrieval.
研究分布式环境下高效易用的文件系统监控技术，为分布式应用提供可靠的文件存储、安全的文件共享，具有重要的现实意义。
The research of distributed file system monitoring technique, which provides reliable file storing and safe file sharing, is practical and principal.
文件系统过滤驱动技术是解决文件安全性问题的一种稳定、高效、可靠的技术实现手段。
Research on the security storage technology for documents with secret based on file system filter driver;
对于一个文件系统来说，最为关键的是它的可靠性和高效性。
It is essential for the file system to be reliable and fast.
对于一个文件系统来说，最为关键的是它的可靠性和高效性。
It is essential for the file system to be reliable and fast.
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