只有当内存管理器返回内存系统你访问冲突。
Only if the memory manager has returned the memory to the system do you get an access violation.
HPC中使用的两种主要的硬件平台是共享内存系统和分布式内存系统。
The two common hardware platforms used in HPC are Shared memory systems and distributed memory systems.
DRAM是一种静态内存系统，速度快、可靠而且易损失——在断电后会失去储存的信息。
DRAM is a static memory system that's speedy, reliable and volatile — it loses stored info when there's no power.
为了理解反向映射技术，让我们来首先简单了解Linux虚拟内存系统的一些基本原理。
To understand the reverse mapping technique, let's quickly go through some fundamentals of the Linux virtual memory system.
写入器永远不会阻塞，因为缓冲可以无限扩展，或者至少到了底层内存系统设置的限制为止。
Writers are never blocked because the buffer capacity can be expanded indefinitely, or at least until the limit imposed by the underlying memory system is reached.
这些因素使多玩家在线游戏引擎可以利用并行数据库技术，比如对称多处理器，以及其他大内存系统。
These factors allow a multiplayer online game engine to take advantage of the power of parallel database technology, such as symmetric multiprocessors, and other large memory systems.
在共享内存系统中，HighPerformance FORTRAN是一种非常适合并行编程的语言。
On Shared memory systems, High Performance FORTRAN is a language suited for parallel programming.
由于内存系统和指令集设计的特性，用于复制内存的最佳通用例程的执行速度通常比用于复制特定长度的代码慢。
Because of the nature of memory systems and instruction-set designs, the best generic routine to copy memory is rarely as fast as code written to copy a particular length.
许多大型站点都使用memcached在分布式内存系统中缓存各种对象，这样就不需要从磁盘或数据库读取它们。
Memcached is used by many large sites to cache various objects in a distributed memory system, rather than having to read from disk or a database.
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.
更大的对象意味着用更大的堆来保存相同大小的数据，同时维持类似的gc性能，这会拖慢操作系统和硬件内存系统。
Larger objects mean a bigger heap to hold the same amount of data while maintaining similar GC performance, which makes the OS and hardware memory system slower.
尽管如此，rmap的性能——尤其是处于高负载的高端系统——相对于2.4内核的虚拟内存系统还是有了显著的提高。
Despite this, the performance of the rmap patch — especially on high-end systems and under heavy loads — is significantly better than the 2.4 kernel's VM system.
基于该系统设计和实现了一个全局共享内存系统，使操作系统充分利用整个系统上的物理内存，减少应用程序的执行时间。
A global Shared memory system is implemented based on the system, and it can allow operating system to use system-wide memory to decrease the execution time of the application.
这个系统内存 256 兆字节，可扩充到 2 千兆字节。
这对于安装在笔记本电脑或者内存不多于4GB的低规格系统中的测试或开发环境很有用。
This is useful on test or development environments that are installed on laptops or low-spec systems with 4 GB or less of RAM.
在对象访问速度，内存利用率和Java芯片系统复杂度之间合理折衷。
A perfect tradeoff will be gained among the object accessing performance, the memory utilization and the Java chip system simplicity.
只需添加cpu、磁盘和内存，直到系统能够处理大象，所有的问题都会消失，对吧？
Just add CPU, disk, and memory until the system can handle the elephants and all the problems go away, right?
使用任何超量使用机制都会从根本上影响主机和客户内存管理系统的运行。
The use of any overcommitment mechanism fundamentally affects the operation of the host and guest memory management systems.
一个重要的优势在于，它能够配置具有较少物理内存的系统。
One of the key benefits is that it provides the ability to configure systems with less physical memory.
负载管理对系统内存提出额外要求。
Load management places additional demand on the system for memory.
所有unix操作系统都支持某种虚拟内存(VM)系统。
All UNIX operating systems support a system of virtual memory (VM).
建议为内存极小的系统使用较大的交换空间。
A large swap space is also advisable for a system with very small memory.
各种温度读数可用于CPU、内存和系统。
Various temperature readings are available for CPUs, Memory, and System.
我们将介绍AIX7如何使用虚拟内存来寻址比系统物理内存更大的内存。
We discuss how AIX 7 USES virtual memory to address more memory than is physically on your system.
我将介绍AIX如何使用虚拟内存来寻址比系统中物理内存更大的内存。
I discuss how AIX USES virtual memory to address more memory than is physically on your system.
观察不同场景下的设备指标(CPU、内存和系统使用率)非常有用。
It is so beneficial to watch the device metrics (CPU, Memory and System Usage) under different situations.
操作系统的虚拟内存子系统允许应用程序分配的内存超过系统上实际存在的内存量，不足的部分由磁盘上的临时存储组成。
The operating system's virtual memory subsystem allows applications to allocate more memory than actually exists on the system, with the shortage being made up by temporary storage on disk.
共享内存是从系统的空闲内存池中分配的，希望访问它的每个进程连接它。
Instead, Shared memory is allocated from the system's free memory pool and is annexed by each process that wants access.
共享内存是从系统的空闲内存池中分配的，希望访问它的每个进程连接它。
Instead, Shared memory is allocated from the system's free memory pool and is annexed by each process that wants access.
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