系统pte像所有pte，代表系统地址空间中的地址。
System PTEs, like all PTEs, represent addresses in the system address space.
操作系统通过一个内部表将处理器地址空间中的内存段映射到内存页，该表定义哪些内存段由哪些处理器所拥有，等等。
Operating systems map memory segments in a processes' address space to memory pages through an internal table which defines what memory segments are owned by what processes, and so on.
因为中间件实例是不同的，所以每个租户有自己的操作系统进程(地址空间)。
Since the middleware instance is different, each tenant is allocated its own set of operating system processes (i.e. address space).
在其他平台上，需要使用操作系统决定的虚拟地址空间大小。
On other platforms, you need to use the operating system imposed virtual address space size.
而使用 64位地址空间的系统实际上是没有这种限制的。
Systems utilizing 64 bits for the address space have virtually no limits.
捕获的CPU时间是操作系统能可靠地用于一个特定的地址空间的 CPU 被占时间。
Captured CPU time is the CPU busy time that the operating system can reliably attribute to a given address space.
大多数现代的非 64位系统都能够创建36位的地址空间，从而产生 64GB 的可寻址内存。
Most modern non-64-bit systems have the ability to create an address space of 36 bits, yielding 64 GB of addressable memory.
由于各种各样的原因，大多数现代操作系统都是在虚拟地址空间中运行程序的。
For a variety of reasons, most modern operating systems run programs in virtual address space.
每个客户操作系统都有自己的地址空间，并且是在实例化客户操作系统时映射的。
Each guest operating system has its own address space that is mapped when the guest is instantiated.
DB 2系统性能可以包括诸如安装选项、缓冲池大小设置、DB 2相关地址空间的调度优先级等等之类的因素。
DB2 systems performance would include such factors as installation options, sizing buffer pools, dispatching priorities for DB2-related address Spaces, and so on.
在32位系统上，默认的地址空间模型是对于用户和堆栈数据使用单一数据段，最大总大小接近256MB。
On 32-bit systems, the default address-space model is that it USES a single segment for user and stack data with a maximum aggregate size close to 256 MB.
程序的文本和数据段现在需要写入到mem文件中，这可以使用write系统调用，或者通过将该文件映射到该进程的地址空间中实现。
The program text and data segments now need to get written into the mem file, either using the write system call, or by mapping the file into the process address space.
Linux内核占据了一个单一的地址空间，这意味着内核或任何驱动程序的故障都会导致整个操作系统的崩溃。
The Linux kernel occupies a single address space, which means that a failure of the kernel or any driver results in the entire operating system crashing.
可寻址内存-一个32位系统只可以直接寻址4gb的地址空间。
Memory addressability - a 32-bit system can directly address only a 4-gb address space.
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.
此数据库管理系统运行在应用的地址空间里。
这表示所有的虚拟机都驻留在同一个操作系统的地址空间中并且并行运行。
This means, all the VMs live in the same OS address space and run in parallel.
这并不意味着系统内核能够肆无忌惮的使用物理内存，系统内核只能使用其管辖的虚拟地址空间所对应的物理内存。
This does not mean the kernel USES that much physical memory, only that it has that portion of address space available to map whatever physical memory it wishes.
在进程地址空间大于物理内存的系统中，内存泄漏或本机内存过度使用会迫使操作系统提供一些虚拟地址空间。
When running on a system with more process address space than physical memory, a memory leak or excessive use of native memory will force the OS to swap out some of the virtual address space.
因为虚拟地址一旦投入使用，所有在计算机中运行的软件都会占用虚拟地址空间，包括操作系统内核自身。
Once virtual addresses are enabled, they apply to all software running in the machine, including the kernel itself.
与其他操作系统一样(比如Windows和Linux)，地址空间分为多个部分，程序只能使用其中的一些部分；其余部分供操作系统使用。
As with other OSs (such as Windows and Linux) the address space is divided up into sections, only some of which are available for a program to use; the OS USES the rest.
也就是说，操作系统内核将保留一部分虚拟地址空间。
Thus a portion of the virtual address space must be reserved to the kernel.
这只会影响DB 2进程地址空间，而不会影响整个系统。
This will only affect the DB2 process address space and not the system as a whole. The following entry in the DB2 diagnostic log describes this event on my system.
系统中每个进程都有它自己的虚拟地址空间。
Each process in the system has its own virtual address space.
否则，系统将DLL模块映射到进程的地址空间中。
Otherwise, the system maps the DLL modules into the process's address space.
一个虚拟内存系统的全部重点就是：你可以拥有一个虚拟的地址空间，它比计算机上的物理内存总量还要大。
The whole point of a virtual memory system is that you can have a virtual address space that's much bigger than the amount of physical memory on the computer.
一个虚拟内存系统的全部重点就是：你可以拥有一个虚拟的地址空间，它比计算机上的物理内存总量还要大。
The whole point of a virtual memory system is that you can have a virtual address space that's much bigger than the amount of physical memory on the computer.
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