The reduction in disk I/O reduces execution time.
磁盘I/O 的减少也减少了执行时间。
The LVM uses a construct named pbuf to control a pending disk I/O.
LVM使用一个称为pbuf 的组成部件来控制挂起的磁盘I/O。
So, if hit ratios are low, a significant amount of disk I/O is taking place.
所以，如果击中率较低，表明正在发生大量的磁盘I/O。
This reduces the disk I/O and significantly improves the performance and throughput.
这会减少磁盘I/O并显著提升性能和吞吐量。
The additional network hop and disk I/O is adding significant time to the transactions.
在执行过程中，网络跳转与磁盘I/O操作耗费了大多数时间。
The function of AIO is to perform disk I/O when SQL statement accessing or updating database data.
AIO的功能是在SQL语句访问或更新数据库数据时，执行磁盘I/O。
The large spike in the I/O Bytes History graph represents the disk I/O required to read the 14MB file.
I/OBytesHistory图表中的大型峰值表示磁盘 I/O要读取那个14MB文件。
We give performance analysis which indicates that this method can decrease the number of access on disk I/O.
性能分析表明该查询策略能显著降低磁盘I／O访问次数。
The closer the ratio is to 100 percent, the lower the frequency of disk I/O, and therefore the less overhead of reading data.
命中率越接近 100%，磁盘I/O的频率就越低，因而读取数据的开销就越少。
The vmstat tool outputs thread/process information, memory/swap usage, page ins/outs, disk I/O, page faults, and CPU statistics.
vmstat工具输出线程/进程信息、内存/交换区使用率、换进/换出页面、磁盘I/O、页面错误和CPU统计信息。
You can install a disk in your car, which I would call, then, a flywheel, And you can convert the gravitational potential energy.
可以在车内装个圆盘，可以称之为飞轮，可以转化，重力势能。
Transactions requiring disk I/O, such as flushing dirty pages from the buffer pool or flushing logs from the log buffer, may wait.
要求磁盘I/O 的事务，例如刷新缓冲池中的脏页或者刷新日志缓冲区中的日志，可能需要等待。
Most often, you want only a small subset of the data in the table, so a full table scan wastes a lot of disk I/O and therefore time.
通常来说，您可能只希望获得表中数据的一个子集，因此全表扫描会浪费大量的磁盘I/O，因此也就会浪费大量时间。
Unlike the tuning of other subsystems, tuning disk I/O should actually be started during the architectural phase of building your systems.
与其他子系统的优化工作不同，实际上在构建系统的体系结构设计阶段就应该开始进行磁盘I/O 优化。
The hit ratios for data and index pages reflect the number of times a page request was handled by the buffer pool directly without requiring disk I/O.
数据和索引页面的击中率反映了缓冲池在不需要磁盘I/O的情况下直接处理一个页面请求的时间量。
There are many other areas of investigation, for example, hardware, disk I/O, configuration, topology, tuning parameters, OS, and patches, among others.
还需要调查其他很多方面，比如硬件、磁盘I/O、配置、拓扑、调优参数、OS和补丁等。
Redo Logfile Sizing Advisor - This feature recommends the optimal size of redo log files in order to avoid excessive disk I/Os due to frequent checkpointing.
RedoLogfile SizingAdvisor ——此特性推荐重做日志文件的最佳大小，从而避免因频繁出现的检查点而导致过多的磁盘I/O。
The second command is to display disk I/O information and is helpful in determining whether we need to increase AIO/KAIO virtual processors. Here is the eample
第二个命令显示磁盘I/O信息，并有助于确定是否需要增加AIO/KAIO虚拟处理器。
CABVW keeps the balance between disk I /O bandwidth and the caching system by dynamically adjusting the values of merging -cache cost and splitting -cache cost.
该算法通过动态调整拆分代价和合并代价的闲值，实现了磁盘带宽和缓存的负载平衡。
Part 3 of this series focuses on the application layer as you move on to file systems, using various commands to monitor and tune your file systems and disk I/O subsystems.
本系列文章的第 3部分将在您继续研究文件系统的同时，重点关注于应用程序层，并使用各种命令以监视和优化您的文件系统和磁盘I/O 子系统。
Also developed for the PRA tree is an enhanced predictive range aggregate (EPRA) query algorithm which USES a more precise branch and bound searching strategy, reducing the disk I?
提出了一种增强预测范围聚集查询epra算法，采用更精确的剪枝搜索准则，减少了查询所需要访问的节点代价。
We are more proficient in analyzing the amount of the processor used and the amount of memory used, and we are now focusing more on the amount of disk I/O used (performance and configuration).
我们已经可以更加专业地分析处理器使用量和内存使用量，现在我们更多地关注磁盘I/O 使用量（性能和配置）。
In our fourth evaluation, we analyzed the disk I/O for each of the workloads.
在第四个评估场景中，我们分析了不同工作负载下的磁盘输入/输出。
I ordered a system with a whopping 5mb disk and waited.
我订了一个带有巨大的5MB磁盘的系统并等待。
I only have limited disk space, so I wrote a tile server in C++ that would generate tile files on demand, and then cache them.
我的硬盘空间不够用，因此我用C++写了一个贴图服务，可以根据需要生成并存储贴图文件。
If booting from disk had been unsuccessful, for whatever reason, I would have instigated Plan b.
如果由于某种原因从磁盘引导不成功，我就采用备用计划。
I confirmed that the new disk was discovered and the paths had been configured correctly.
我还确认这个新磁盘已被发现且路径已被正确配置。
I use two main areas to categorize disk errors on AIX systems: impact and duration.
我使用两个主要的度量值来分类AIX系统上的磁盘错误：影响和持续时间。
With the operating system now residing on the new disk, I focused on migrating the data volume groups.
当操作系统现迁移到新磁盘之后，我重点进行数据卷组迁移。
The reason for this is to limit the amount of dirty pages in memory, which further reduces I/O overhead and disk fragmentation.
这么做可以限制内存中 “脏”页面的数量，从而进一步减少I/O开销和磁盘碎片。
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