The traditional limiting factors for scalability are access to CPU, memory, and I/O.
可伸缩性的传统制约因素是对CPU、内存和I/O的访问。
This setting controls the size of the NSF buffer pool, a section of memory dedicated to buffering I/O transfers between the NIF indexing functions and disk storage.
这个设置控制NSF缓冲池的大小，后者是用于缓冲NIF索引函数与磁盘存储之间的I/O传输的一部分内存。
The tuning that you do is dependent on the bottleneck, for example, CPU, virtual memory, or I/O.
具体的瓶颈将决定您需要进行的优化工作，例如，CPU、虚拟内存或者I/O。
This can cut the time required to process queries by as much as 20 percent because more data can be kept in memory, reducing the number of I/O operations to slower mechanical disk drives.
这导致处理查询所需的时间降低了 20%，因为可以在内存中保存更多数据，减少了对缓慢的机械磁盘驱动器的I/O操作次数。
Unlike other tuning examples in this series, for NFS you must monitor (and possibly tune) all subsystems including CPU, memory, I/O, and the network.
与本系列的其他调优示例不同，对于NFS，您必须监控（而且可能需要调优）所有子系统，包括CPU、内存、I/O和网络。
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。
This input/output (I/O) operation is time-consuming, compared with the amount of time required to access data that’s already in computer memory.
与访问已经在计算机内存中的数据相比，这种输入/输出 (I/O)操作非常耗时。
We looked at the memory, CPU, and I/O subsystems as we analyzed and tuned our systems.
在分析和优化系统时，我们研究了内存、CPU 和I/O子系统。
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。
The tests should allow the attainment of high-resource utilization levels for main kernel areas, such as the CPU(s), memory, I/O, and networking.
测试应该可以得到CPU（s）、内存、I/O和网络等主要内核区域的高水平的资源利用率。
MB of memory requires 256 scans by the O/S to find memory with a 4K O/S page
MB的内存需要O/S 进行 256次扫描来找到具有4K O/S页的内存。
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）。
This leaves an additional 1GB of addressable memory which is normally reserved by the O/S and allocated to system resources.
还剩余1GB的可寻址内存，通常由O/S所保留，分配给系统资源。
"o" : A memory operand is allowed, but only if the address is offsettable. ie, adding a small offset to the address gives a valid address.
对内存的操作被允许，但是必须支持地址偏移值，即，对于给出的地址，加上一个偏移量，此时也是一个合法的地址。
The eight-socket rackmount RX900 S1, based on the Intel Xeon 7500 and QuickPath Interconnect, scales up to 64 processing cores, 2 TB of main memory and more than 120 GB of aggregated I/O bandwidth.
RX900S1是一款配有8个插槽的机架服务器，基于Intel至强7500平台和QuickPath互联技术。该服务器拥有64个处理器核，2TB主内容以及超过120GB的I/O带宽。
If you want to use large pages in combination with shared memory, which is often used in HPC and database applications, you will also need to set the v_pnshm value: # vmo -p -o v_pinshm=1.
如果希望与 HPC和数据库应用程序中常用的共享内存结合使用大页面，还需要设置 v_pnshm值：#vmo-p-o v_pinshm=1。
The whole user mode page doesn't need to be locked in memory as with Direct I/O, which is the plus side of this.
整个用户态的页不需要再像直接访问输入输出那样被锁定，这是它的好的方面。
The kernel of embedded system is embedded MCU, which requires fast processing speed, big memory, high performance of I/O port, low power waste, and fast respond.
嵌入式系统的核心是嵌入式处理器，要求处理速度块，存储容量大，I/O口功能强，功率损耗低，及时响应快等。
Program instruction set, logic stack and data type of I/O memory which are tied up with tasks in the soft-PLC system are analyzed and studied.
研究了系统的程序指令集、逻辑堆栈和I/O存储器数据类型，实验表明系统具有良好的实时性和可靠性。
The outdoor-ready model features remote zoom and focus, a built-in slot for a micro SD/SDHC/SDXC memory card, and I/O connectors for interfacing with external devices.
户外型具有远程聚焦和对焦功能，有一个内置的适用于微型SD/SDHC/SDXC记忆卡的卡槽和一个用于连接外部设备接口的连接器。
The hardware chapter introduces the external memory module and video I/O module, programs video-driver for the DM642 by using CSL, discuss the applications of interrupt and direct memory access (DMA).
在硬件设计主要介绍系统组成中的外部存储器模块与视频输入输出模块，介绍了使用片上支持库编写DM642中视频驱动程序的方法，以及编写过程中DM642中断和直接存储器存取（DMA）的应用；
The resulting input/output communication (or I/O) between fast internal memory and slower external memory (such as disks) can be a major performance bottleneck.
因此在快速的内存和相对慢速的外存（比如硬盘）之间的输入/输出（I/O）通讯就成了制约算法性能的主要瓶颈。
The PC Detector tab collects complete information of the PC which includes CPU Processor, Display drivers, audio drivers, memory information, networking, data storage and I/O Devices .
个人电脑检测标签完整的信息收集的个人电脑，其中包括CPU处理器，显示驱动器，音频驱动程序，内存信息，网络，数据存储和I /O设备。
With time series simulation software, the CPU's I/O ports simulate I2C bus and exchange data with clock chips, temperature humidity sensors, memory chips and other devices.
采用软件模拟时序使CPU的I/O口模拟I2C总线，实现了单片机与时钟芯片、温湿度传感器、存储芯片等器件的数据交换。
The interface uses a circuit based on dual port FIFO buffer memory to realize data transfer of different I/O velocity between the two computers.
该接口采用双端口FIFO缓冲存储技术，实现两机间不同I／O速度的数据通信。
The user mode buffers are locked in memory until the IRP is completed which is the downside of using direct I/O.
用户态的缓冲区在IRP请求完成之前是被锁定的，这是使用 直接 输入 输出的不利方面。
In addition, the system takes up only a small number of MCU I / O port and memory, the system left a functional space for expansion.
除此之外，该系统只占用了单片机少量的I /O口和内存，为系统留下了功能扩展的空间。
This paper discusses the judgement and process of program derailment, and presents fault tolerance methods in random access memory, I/O canal and data in computer real-time control system.
本文提出了在计算机实时控制系统中，程序飞出的判断及其处理方法；提出了随机存贮器的容错方法，I／O通道的容错方法以及数据的容错方法。
This paper discusses the judgement and process of program derailment, and presents fault tolerance methods in random access memory, I/O canal and data in computer real-time control system.
本文提出了在计算机实时控制系统中，程序飞出的判断及其处理方法；提出了随机存贮器的容错方法，I／O通道的容错方法以及数据的容错方法。
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