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. 现在,对于一般的数据库操作,不必考虑文件系统缓存,因为DB2实现了缓冲池,这些缓冲池已经做了必要的缓存。
There might not be enough disk space to complete the file write operation, or allocating the buffer could fail if not enough memory is available. 可能没有足够的磁盘空间来完成该文件的写操作,或者由于没有足够的内存可用,分配缓冲区可能失败。
Thus, the read operations compete with log writing and the write operation for data pages from the buffer pool. 因而,读操作与日志写和缓冲池中的数据页的写操作之间存在竞争。
The key technologies in the OPS network include optical switch, optical logic operation, wavelength conversion and optical buffer etc. OPS网络结构中的关键技术包括光开关、光逻辑、全光波长变换以及光缓存等多项技术。
An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full. 由于系统缓冲区空间不足或列队已满,不能执行套接字上的操作。
With every overlapped send or receive operation, it is possible that the data buffer submitted will be locked. 每一次重复发送或接收操作,可能是缓冲区的数据提交将被锁定。
An invalid write operation aborts the time update procedure and the contents of the buffer are discarded. 一个无效的写操作中止时间更新程序和缓冲区的内容将被丢弃。
Possibility Exploration on Operation of Controlled Stop Buffer in Railway Marshalling Yards for the Home 可控挡车器在我国铁路编组场上运用的可能性探讨
Fast implementation of operation on big integers is realized mainly through cut buffer, namely the strategy of getting time by space. 并对现有比较成熟的算法进行了优化改进,主要通过开辟缓冲区,以空间换取时间的策略,完成了大整数的高速运算。
According to the analysis on the uncertainty of urban rail trains in operation, the article proposes that the trace train interval time consists of the minimum interval time and average necessary buffer time. 通过对城市轨道交通列车实际运行不确定性的分析,提出城市轨道交通追踪列车间隔时间是由最小列车间隔时间和平均必要缓冲时间两部分组成。
With several typical satellite network operation mode, the reference for buffer capacity configuration is given in details. 并通过卫星网的几种典型工作模式,为具体应设置的缓冲器大小提供了参考依据。
Energy-saving and smooth operation while forced reversing can be realized by good play of the buffer springs so long as the relative sliding length between the counterbalance weight and the movable frame on the load-belt long stroke pumping unit is properly designed. 设计宽带长冲程抽油机时,合理地确定平衡重与活动框架的相对滑移长度可以更好地利用缓冲弹簧在换向时实现节能和缓冲的目的。
BUFFER CAPACITY The paper introduced the operation principle, the structure characteristics and the performance of the new buffer. 本文介绍了新型液气缓冲器的结构特征、工作原理及性能特点。
The process has the advantages of flexible operation, higher buffer capacity, and higher removal rate of pollutants. The effluent quality basically reaches the standard under the large fluctuation of influent quality. 该工艺在进水水质波动较大的情况下,出水水质基本能够达标,具有运行灵活、缓冲能力强、污染物去除率高的优点。
In this paper, the mathematical Principle of generating multitone signal, the operation machinery of function generator, and the method of producing stimulus buffer for generating the multitone signal are described simply. 本文简要叙述了多音调信号产生的数学依据、函数发生器的工作原理、以及为了发生多音调信号而形成激励缓冲器的方法。
With the increase of network operation flux in internet, network congestion problem was getting more serious. With dynamic partical buffer sharing ( DPBS) mechanism, the performance of random early detection ( RED) algorithm can be improved. 为了解决Internet中网络业务流量不断增长而引发的网络拥塞问题,采用部分缓存共享机制对随机早期检测算法进行改进。
The efficiency of file operation was improved, by the pre-read and wait-write buffer technology was applied to the operation of file read and write. 在流媒体文件读写操作中采用预读取和延迟写缓冲技术,提高流媒体文件读写效率。
The system can fulfill a series of general GIS operation to resolve the space measure, buffer analysis and overlap analysis etc. And it also analyzes the water quality, rainfall, water resource and the biology situation of the wetland. 系统可以完成一系列通用GIS的操作,解决了空间量算、缓冲区分析、叠置分析等难点,同时可以对湿地的水质、降水、水资源以及生态情况进行分析。
The operation temperature and the concentration of serum in buffer have no effect on the transfection efficiencies. 温度和缓冲液中的血清成分对电穿孔效率影响不大。
This paper is used to analyze mechanical and electrical failure in operation for AC high voltage post insulators of ceramic material, it is put forward to solve break and crackle fault by controlling the concrete expansion increasing buffer layer in agglutination surface and avoiding manufacture disfigurement. 根据交流高压支柱瓷绝缘子的机械、电气事故分析,提出了解决断路及裂纹事故的关键措施,即控制水泥膨胀、胶合面增加胶装缓冲层和消除产品在制造过程中残留的内在缺陷;
The analog part includes the switch controlling circuits, driving circuits, operation amplifier, sample/ hold circuits, phase modulating circuits, unity gain buffer, current reference source, compensation capacity array, voltage conversion circuit. 模拟部分包含控制开关电路、驱动电路、前级运算放大器、采样保持电路、相位调节电路、单位增益缓冲器、基准电流源、电容补偿阵列、开关电压转换电路。
At last, it gives out the operation situation of the system, systematically realizing some specific functions, such as the query of geographic information, display of elevator faults, the query of peripheral information, analysis on buffer and so on. 论文最后给出了系统的运行情况,系统实现了地理信息查询、故障电梯显示、周边信息查询、缓冲区分析等具体功能。
In this system dual-port RAM of the FPGA were used as high-speed cache, and by using the ping-pong operation to accomplish the buffer of high-speed real-time image data. This mechanism ensured coordination of DSP and FPGA parallel work. 本系统中采用FPGA内的双口RAM作为高速缓存器利用乒乓操作方式完成对实时的图像数据缓冲,有利于DSP与FPGA之间数据的交互。
On the operation phase level, we designed a flexible and adaptive buffer allocation approach-MG-x-y-z for every operation phase and replacement policy suitable for access pattern of the operation phase. 在操作阶段级,对每个操作阶段设计了一种灵活且自适应的缓冲区分配策略(MG-x-y-z)和与它的访问模式相适应的置换策略。
Operation principle and noise characteristics of thee fundamental detect circuit elements, unit gain buffer, tran-resistant amplifier and charge integrated amplifier, are analyzed and compared. It is indicated that the performance of charge integrated amplifier is the best. 对单位增益缓冲器、跨阻放大器和电荷积分放大器三种基本检测单元的工作原理和噪声特性进行了分析和比较,表明电荷积分放大器的性能最好。
In comparison with the other multi-path protocols of the wireless Mesh network, the IM-NCR operation process is shown, as well as the parameters setting, the format of the encoded data packet, and the buffer management and identification mechanism. 在对比其它无线Mesh网络多路径协议的基础上,详细分析了IM-NCR协议的参数设置,编码数据包的格式及缓冲区管理和确认机制,并给出了IM-NCR协议实现的具体工作过程。
MRE Isolation buffer has low energy consumption, simple configuration, good reliability and wide operation bandwidth compared with traditional isolation buffer, and will be the direction of smart isolation buffer in the future. 基于磁流变弹性体的隔振缓冲器与传统的隔振缓冲器相比,能耗小,结构简单,可靠性强,工作频带宽,将是今后一段时间内智能隔振缓冲器的重要发展方向。
In this algorithm, the event relating with an operation is executed locally and stored in a buffer. When receiving an event from other nodes, it is justified by the operation relationship. 在该算法中,事件首先在本地执行并存入缓冲区;当收到来自其他站点的事件后根据操作之间的关系进行判断,对于产生冲突的事件在本地进行调整。
Secondly, analyzed the calculation method of reasonable length of operation area, warning area, transition area, buffer zone and work area in the highway work zone, and discussed the work zone arrangement during different construction stages. 其次对高速公路施工作业区中的警告区、过渡区、缓冲区、工作区及终止区的合理长度的计算方法进行分析,并且探讨了高速公路不同施工阶段的作业区布置。