Exist in the file memory map showing the current status of the data bits (0 and 1 file).
该文件中存有内存目前状况的位示图的数据(0和1的文件)。
Given the alternative, you would much rather have file memory paged to disk than computational memory.
在可以选择的情况下，更希望将文件内存换出到磁盘，而不是换出计算内存。
Setting these parameters determine the appropriate value for your system to ensure that it is tuned to either favor computational memory or file memory.
将这些参数设置为适合您的系统的值，以确保对计算内存或者文件内存进行优化。
It can save a lot of graphic file memory space and make the time collect and control of procedure parameters easier when used on industrial computer.
该方法节省了大量图形文件的存储空间，在工控机上调用时，易于实现过程参数的定时采集和控制。
It can store the results as a string in system memory, into a file, or into database tables.
它可以将结果作为系统内存中的字符串存储到文件或数据库表内。
In some cases, you can also map a file descriptor to a plain file or another device into memory.
在某些情况下，还可以把一般文件或另一个设备的文件描述符映射到内存。
If we explore the construction of the memory mapped file we can see that there is no stream, we just name the resource.
如果我们想要探究内存映射文件结构的话，不需要构造一个流，只要找到该资源的名字即可。
The Listing 27 snippet shows how to delete a file from external memory.
清单27中的代码片段展示了如何从外部内存删除文件。
It caches the file data as pages, just like virtual memory for processes.
它将文件数据缓存为分页，就如同进程的虚拟内存一样。
Sixty years into the computer age, we still aren't checking basic things like the success of opening a file or whether memory allocation succeeds.
计算机的诞生已进入了六十个年头，我们仍旧没有检查基本的东西，如成功打开一个文件及内存分配是否成功。
Within each bus member, there is a number of messaging engines that manage runtime resources like queues and are capable of storing messages in a file, memory, or database.
每个总线成员内都有许多消息传递引擎，可以管理队列等运行时资源并能够在文件、内存或数据库内存储消息。
Reading data streams and writing results to streams is convenient, because the application does not have to read a large portion of the file, much less the whole file, into memory.
读取数据流并将结果写入流是很方便的，因为应用程序不一定要将文件的大部分（更不必说整个文件）读取到内存。
Memory-mapped files are an operating system feature that links a block of memory to a file.
内存映射文件是把一块内存连接到一个文件的操作系统特性。
Coming up we'll look at memory mapping, how file reading and writing ties into all this and what memory usage figures mean.
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。
Finally, having extra memory on hand allows the file systems to cache files and metadata in memory.
最后，安装更多内存让文件系统可以把文件和元数据缓存在内存中。
The text segment also maps your binary file in memory, but writes to this area earn your program a Segmentation Fault.
文本段同样会将二进制文件映射到内存，但文件映射区域的写入操作只能以程序收到段错误而告终。
Physical parameters range from the temperature of CPUs, utilization of memory and file system, interface utilization, and voltage reading, among other physical values.
物理参数包括CPU温度、内存与文件系统利用情况、接口利用、电压读数，以及其他物理值。
Even though the data segment maps a file, it is a private memory mapping, which means that updates to memory are not reflected in the underlying file.
尽管数据段映射了文件，但这种内存映射是私有的，也就是说，数据段的内存更新不会在其映射的文件中生效。
They remain in memory until the file is unmounted, a page is stolen, or a file is unlinked.
它们一直都位于内存中，直到文件被卸载、页面被偷取或者取消到文件的链接。
The files are decrypted when they are read from the disk into memory so that the file data kept in memory is in clear format.
在将文件从磁盘读取到内存时对文件解密，因此文件数据能够以明文格式保存在内存中。
Memory usage in this workload is primarily attributable to file I/O, not anonymous memory, and very little swap activity is observed.
此工作负载中的内存利用主要是由文件I/O 引起，而不是匿名内存，几乎没观察到交换活动。
So, in the above example, there are 16529 non-computational file pages mapped into memory.
因此，在上面的示例中，一共有16529个非计算性的文件分页被映射到了内存中。
First, on input it reads the entire XML file into memory, so if the file is too big, or if you're dealing with a stream of XML data, you can't use the module.
首先，在输入方面，它将完整的XML文件读入内存，所以如果文件非常大或者需要处理XML数据流，就不能使用这个模块。
If the file is closed, the AIX kernel continues to cache the file data in memory (in permanent storage pages).
如果关闭该文件，那么AIX内核将继续在内存中(在永久存储分页中)缓存该文件的数据。
This means that the whole of the file does not have to be read into memory before processing of the file can commence.
这意味着不必将整个文件读取到内存中才能着手处理文件。
Facilities include open file handles (file descriptors), Shared memory, process synchronization primitives, and current directory.
这些设施包括打开文件句柄(文件描述符)、共享内存、进程同步原语和当前目录。
This will create the memory mapped file but to start using it we will need a map view.
这样，我们就创建了一个内存映射文件。
Now, to read and print all the records from the entire Shared memory file, create a loop.
现在，要从全部共享内存文件读取和打印所有记录，创建一个循环。
Linux uses the shmget/mmap function to access files by directly incorporating file data into memory.
Linux使用shmget/mmap函数通过直接将文件数据 合并入内存来访问文件。
In addition, many versions of Linux will load the entire flat file into memory during the grep run, vastly enhancing the performance on subsequent runs.
此外，许多版本的Linux都在grep运行期间把整个平面文件装入到内存中，可极大地增强后续运行的性能。
应用推荐