导致的结果是不断地从磁盘而非主内存读写数据,这是影响性能的重要限制因素。
As a result, data is continually written and read from disk rather than from main memory, which is very detrimental to performance.
这两种方法有各自的优点及局限性:基于内容的方法由于内存读写数量的巨大,往往会生成过大的记录文件;
These two methods both have advantages and limitations: Content-based method would generate huge size record file for the frequent read and write operations of memory;
共享内存提供了最快的进程间通信方法,因为它以内存传输的速度来处理读写消息。
Shared memory provides the fastest method of interprocess communication, because it processes read and write messages at the speed of memory transfers.
该转换的开销增加了读写次数,但是除了只是内存大小减小了以外,它的确还有其它优点。
The overhead of this conversion adds to read and write times, but it does have other benefits beyond just the memory size reduction.
RDMA允许一台机器读写另一台机器的内存,无需在目标机器上有任何处理器周期。
RDMA allows one machine to read or write to the memory of another machine without requiring any processor cycles on the target machine.
一旦连接起来,你就能读写文件的任意部分,就像它已经不再是非托管内存数组了。
Once linked, you can read and write to any part of the file as if it were nothing more than just an array of unmanaged memory.
随着程序对该文件进行读写操作,AIX内核将该文件的数据作为非计算性的永久存储分页在内存中进行缓存。
As a program does reads and writes to the file, the AIX kernel caches the file's data in memory as non-computational permanent storage pages.
包括读写文本文件的便捷方法,快速地列举目录,对内存映射文件的支持。
These include convenience methods for reading and writing text-based files, significantly faster directory enumeration, and support for memory mapped files.
进而我们会看看内存映射原理、与之相关的文件读写机制以及内存使用情况图表所揭示的含义。
Coming up we'll look at memory mapping, how file reading and writing ties into all this and what memory usage figures mean.
为了简单起见,执行器代表了世界上所有能够直接跟内存交互(即他们可以直接读写内存)的机器和人。
The actuator stands for all the machines and human beings in the world that, for the sake of simplicity, can interact directly with the memory, i.e. : they can read from and write to memory.
它们可用来向内存流控制器发出dma命令、处理SPE事件、向PPE和从PPE读写消息。
They are used for issuing DMA commands to the memory flow controller, handling SPE events, and reading and writing messages to and from the PPE.
最后,在图4中,进程a和B可以随意读写共享内存段。
Finally, in Figure 4, processes a and B can read and write from the Shared memory segment freely.
用特殊的系统调用(即对UNIX内核的请求)分配和释放内存并设置权限;通过一般的读写操作读写内存段中的数据。
Special system calls, or requests to the UNIX kernel, allocate and free the memory and set permissions; common read and write operations put and get data from the region.
在用户每次提交一个读写数据的请求时,这可以将要查询的整个表装入内存中。
This allows the entire lookup table to be loaded into memory each time a user submits a request to read or write data.
真实的应用程序会使用信号量或其他技术控制对共享内存段的读写。
A real application would use semaphores or other techniques to control reading and writing to the Shared segment.
自然,在这个区域上的读写比内存上的读写要慢得多。
Naturally, reads and writes to this area are far slower than between areas of memory.
数据存取(高级):通过划分数据模型结构和把DAO转换成直接访问XAP内存数据网格,改进读写性能。
Data access (Advanced) : By partitioning the data model structure and converting DAOs to access directly the XAP In-Memory data Grid, read and write performance is improved.
获取指向用于读写内存中的元数据的内部接口实例的指针。
Gets a pointer to an internal interface instance used to read and write metadata in memory.
是两个或多个应用程序可以读写的内存。
Is memory that two or more applications can read from and write to.
任何试图对未提交的内存进行读写的操作都会导致访问异常。
An attempt to read from or write to uncommitted memory causes an access violation.
swap分区大小的原则是根据你的内存大小而设置,一般就是内存的1.5到2倍大。而且最好把swap分区放在硬盘的最前面或者最后面以便读写。
The rule of thumb is that you choose between 1.5 to 2 times the amount of RAM as the swap space, and you put this partition in a place that is quick to reach, like at the beginning or end of the disk.
每个操作系统进程占用自己的虚拟地址空间,即一组可以读写的虚拟内存页。
Each operating-system process is allocated its own virtual address space — a set of virtual-memory pages that it can read from and write to. Each page can be in one of three states.
在试图读写受保护内存时引发的异常。
The exception that is thrown when there is an attempt to read or write protected memory.
在这里我用两个相同的应用程序的不同实例来读写数据从内存映射文件。
Here I am using two different instances of same application to read write data from memory mapped file.
同时,还给出了一个占用内存资源较少的大容量信号文件的读写方法。
The way how to read and write the large file of signal was also given, which will use only a litter memory.
背景灯、读写内存、无线连接、特殊的硬件和处理器速度,所有这些会对总体功耗产生重要的影响。
Backlighting, reading and writing to memory, wireless connections, specialized hardware, and processor speed all have an impact on the overall power usage.
这意味着,你的程序访问(读写)一个内存地址,它没有权利。
That means that your program is accessing (either reading or writing) a memory address to which it does not have rights.
计算机病毒利用读写文件能进行感染,利用驻留内存、截取中断向量等方式能进行传染和破坏。
The use of computer virus infection can read and write files, use the presence of memory, such as the interception of interruption of vector-borne and be able to carry out sabotage.
但是所有这些MS -DOS应用程序都试图通过发送IN和OUT指令,读写设备内存以及处理来自硬件的中断来和硬件直接对话。
But all those MS-DOS applications were trying to talk directly to hardware by issuing in and OUT instructions, reading and writing device memory, and handling interrupts from the hardware.
易语言自定义数据类型读写源码例程程序结合易语言内存文件的操作,实现自定义数据类型数据的读写。
Easy language custom data types to read and write source routine procedures combined with easy language to operate the memory file to achieve custom data type data read and write.
应用推荐