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.
缓冲池的用途是为了提高数据库系统的性能。
The purpose of the buffer pool is to improve database system performance.
现在，对于一般的数据库操作，不必考虑文件系统缓存，因为DB 2实现了缓冲池，这些缓冲池已经做了必要的缓存。
Now, for normal database operation you do not really have to worry about the file system cache because DB2 implements buffer pools that do the necessary caching already.
关于系统配置的信息包括缓冲池的大小、排序堆的大小等等。
Information about system configuration can include the size of the buffer pool, the sort heap, and more.
通常，熟文件更慢，因为存在附加的开销和文件系统提供的缓冲。
In general, cooked files are slower because of the additional overhead and buffering provided by the file system.
我们整个系统的缓冲资金越来越不足，市场参与者和监管者对新的风险都没有做出恰当的判断。
Throughout our system we had increasingly inadequate capital buffers - as both market participants and regulators failed to account for new risks appropriately.
资本种类中最能保证银行系统的是股本，因为其可以直接吸收损失，为银行系统所遭受的冲击起到缓冲作用。
The best sort of capital to ensure a stable banking system is equity, because it directly absorbs losses and can thus cushion against systemic shocks.
当您配置新的缓冲池时，一定要理解它对系统可用内存的影响。
When you configure new buffer pools, make sure that you understand how it impacts the available memory of your system.
对于64位系统，缓冲池实际上可以是任何大小。
For a 64-bit system, the buffer pool can be practically any size.
因为db2缓冲池是系统主内存的一部分，DB 2数据库管理器在它读取或写入磁盘介质时将它分配给缓存表和索引数据。
Since a DB2 buffer pool is a part of the main memory of the system, the DB2 database manager allocates it for caching tables and index data when it reads or writes to and from media disks.
对于大型OLTP数据库，在保持系统稳定的同时为缓冲池留出尽可能多的内存。
For for a large OLTP database, set aside as much as memory as possible for the buffer pool while keeping the system stable.
如果您的系统具有较低的缓冲池命中率，您就可以通过增加缓冲池大小来进一步地取得更好的应用程序性能结果。
If your system has a low buffer pool hit ratio, you can increase the buffer pool size further to achieve better application performance result.
日志文件系统是使用日志来缓冲文件系统的修改(同时也可以应用于紧急故障恢复)的，但可以根据记录的时间与内容采取不同的策略。
Journaling file systems use a journal to buffer changes to the file system (which is also used in crash recovery) but can use different strategies for when and what is journaled.
所谓日志就是一种特殊的文件，它会在一个循环的缓冲区内记录文件系统的修改，然后将其定期提交到文件系统。
The journal is a special file that logs the changes destined for the file system in a circular buffer. At periodic intervals, the journal is committed to the file system.
这份研究报告建议，把更多的资金投入到公共供水系统周围缓冲区域的土地保护上。
The report recommends investing more money in conserving land in buffer zones around public water supplies.
它的额外配置有免提拨号和撞击缓冲刹车系统。
It offers such features as hands-free telephone dialing and a collision-mitigation braking system.
创建常规表空间TS页面，大小16K，由系统管理(fnis缓冲池BP)。
Create regular tablespace TS page, size 16k, managed by system using (FNIS buffer pool BP).
假若你觉得出门前绑紧鞋带才有跑步的感觉，或者你就喜欢跑鞋的支撑和缓冲系统呢？
What if there's something about lacing up a pair of shoes before heading out the door that makes you feel more like a runner or you just appreciate the added support and cushioning?
通过查询syscat .BUFFER POOLS系统视图可以列出缓冲池信息，如清单7所示。
You can list buffer pool information by querying the SYSCAT.BUFFERPOOLS system view, as shown in Listing 7.
大多数文件系统都通过缓冲区缓存来相互通信，这种缓存通过缓存最近使用的数据来优化对物理设备的访问。
Most of the file systems communicate through a buffer cache, which is a cache that optimizes access to the physical devices by caching recently touched data.
这可不是一个好的系统范围内问题的缓冲额度。
This is not much of a cushion against a system-wide problem.
技巧就在于改变你跑步的方式，去模仿裸脚跑步的步法，强迫你的身体作出调整来跑得更好，减少对鞋子缓冲系统的依赖。
The trick is to change your form to mimic that of barefoot runners, forcing your body to run better and rely on the cushioning of shoes less.
对于具有许多更新工作负载的数据库系统而言，下面日志缓冲区的默认大小(LOGBUFSZ)通常都太小。
The default size of the log buffer (LOGBUFSZ) below is normally too small for database systems with many update workloads.
目前，我们举的所有利用缓冲区溢位的范例都是针对UNIX系统的。
So far, all our examples of buffer overflow exploits have been for UNIX systems.
在系统启动后，内核环缓冲区也可以用于一些事件，其中包括某些程序失败和热插拔事件。
The kernel ring buffer is also used for some events after the system is booted. These include certain program failures and hot-plug events.
当您在大型审核日志表格中运行查询功能时，您可能会在您的数据库系统不得不向缓冲池读入数千页面以进行计算时而结束。
When you run queries for very large audit log tables, you can end up with a situation where your database system has to read thousands of pages into the bufferpool to compute the result.
而且，对于那些受益于文件系统预读功能或者较高缓冲区缓存命中率的应用程序，可能会出现性能的降低。
Further, applications that might benefit from having a file system read ahead or high buffer cache hit rates might actually see performance degradation.
缓冲区缓存会缓存文件系统和相关块设备之间的请求。
The buffer cache buffers requests between the file systems and the block devices that they manipulate.
从2004年开始，用户应该开始避免使用这样的操作系统，即它们至少没有对缓冲区溢出提供某种自动保护机制。
Beginning in 2004, users should start avoiding any operating system that fails to provide at least some automatic protection against buffer overflows.
从2004年开始，用户应该开始避免使用这样的操作系统，即它们至少没有对缓冲区溢出提供某种自动保护机制。
Beginning in 2004, users should start avoiding any operating system that fails to provide at least some automatic protection against buffer overflows.
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