这部书虽然有缺页,但毕竟是珍本。
This book is a rare edition, though there are several pages missing.
处理器通过缺页中断来进行这个操作。
The processor does this through the use of a page fault interrupt.
这是因为残缺页保护会修改该页,使其不适合任何其他线程读取。
This is because the torn page protection modifies the page, making it unsuitable for any other thread to read.
如果页面写入确实不完整,则数据库恢复通常会检测到残缺页面。
Torn pages are typically detected by database recovery if it is truly an incomplete write of a page.
编写程序完成页式虚拟存储管理中地址转换过程和模拟缺页中断的处理。
Writing process is complete page-based virtual memory address translation process management and simulation page fault handling.
为了解决缺页,AIX内核会将所引用的分页加载到实际内存中的某个位置。
To resolve the page fault, the AIX kernel loads the referenced page to a location in real memory.
这样做的目的是,在内存模块中为处理器上产生缺页的进程提供内存分配的功能。
What this does is provides the capability to allocate memory for a process from the memory module which contains the processor that caused the page fault.
如果某个文件因为指令取出发生了缺页,那么会将非计算性文件转换为计算性状态。
When a page fault is taken on a file due to an instruction fetch, only the non-computational file transitions to the computational state.
同时,VMM维护了一个未分配页帧的空闲列表,可以使用该列表来处理缺页的问题。
At the same time, VMM maintains a free list of unallocated page frames, which are used to satisfy page faults.
页清除率,或者说总缺页率,可能导致计时上的很大不同,使得性能比较容易产生误解。
The rate of page cleaning, or the total absence of it, can cause large differences in timings which can make performance comparisons misleading.
最后把置换算法进行了综合性性能分析,如何才能把缺页率保持在一个合理的水平上。
Finally, the comprehensive performances of displacement algorithms are analyzed, and the method of keeping the rate of missing pages on a reasonable level is obtained.
如果应用程序引用了某个分页,而该分页并没有映射到实际内存中,那么系统将产生一个缺页。
When an application references a page that is not mapped into real memory, the system generates a page fault.
方法MMFM将大规模数据文件映像成虚拟RAM,利用空间分块组织数据,减少缺页请求;
MMFM constructs streamlines like in-core methods through mapping large data file into virtual RAM, and reduces page faults by organizing data in spatial blocks.
当产生缺页中断时执行的一组核心态程序,它与映象激活程序一起提供操作系统的存储管理功能。
A set of kernel mode procedures that executes as the result of a page fault. The pager and the image activator provide the operating system's memory management functions.
如果无法在RAM中找到这个页面,则出现一次缺页,这指示内核从磁盘中装载更多的页面到RAM中。
If it cannot find it there, a page fault occurs, and this signals the kernel to bring more pages into RAM from disk.
由此可以看出,它的目标是帮助最大限度地缩短缺页响应时间,并在可能的情况下减少虚拟内存的使用。
From here, you can determine that its objectives are to help minimize both the response time of page faults and to decrease the use of virtual memory where it can.
古代中国的书籍,从最早的竹策、苇编,到后来的线装纸面书,都很容易产生脱线缺页,或磨损模糊的现象;
Ancient Chinese books-from the earliest bamboo tablets and reed pages to later string-bound paper books-tended to fall apart and lose their pages, or the writing would fade and rub off.
因此,服务器上的每次缓存缺页都会触发一个RPC回调,它会获取整个完整的用户证书(STKT +PAC)。
Thus, every cache miss on the server triggered a callback RPC that had to fetch the user's credential (STKT + PAC) in its entirety.
但LRU算法在某些情况下会产生较多的缺页失败,改进LRU算法,降低缺页失败次数,可以有效地提高系统性能。
But in some cases, LRU algorithm causes many page faults, so improving LRU page replacement algorithm can reduce page faults, and therefore improve the performance of the system.
此选项旨在以较低的开销检查表的物理一致性,同时,此项检查还可以检测可能危及用户数据安全的残缺页和常见的硬件故障。
Designed to provide a small overhead check of the physical consistency of the table, this check can also detect torn pages, and common hardware failures that can compromise data.
增加这个缓冲区的大小允许系统映射更多的虚拟内存,其结果是使得使用大量虚拟内存的应用程序(如Oracle)的缺页率更低。
Increasing the size of this buffer allows the system to map more virtual memory, which results in a lower miss rate for applications that use a lot of virtual memory like Oracle.
当对某个文件出现进程缺页(意味着该进程引用了文件的部分内容,而这部分内容当前没有缓存在永久存储分页的内存中)的时候,该进程将产生一个缺页。
When a process page faults on a file (meaning the process references a part of the file that is not currently cached in memory in a permanent storage page), the process generates a page fault.
在单段式虚拟存储器-请求式分页系统中,涉及到缺页中断次数的计算问题。从虚拟存储器的基本原理出发,分析了各种教材中有关计算结果不同的主要原因。
There is a problem of counting the page fault rate in the paging system. This paper analyzes the cause of the difference for the output in different textbooks.
在单段式虚拟存储器-请求式分页系统中,涉及到缺页中断次数的计算问题。从虚拟存储器的基本原理出发,分析了各种教材中有关计算结果不同的主要原因。
There is a problem of counting the page fault rate in the paging system. This paper analyzes the cause of the difference for the output in different textbooks.
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