The lowest overhead would be through a shared-memory connection.
通过共享存储器连接来完成的开销最低。
However, Shared memory does not provide any access control for processes that use it.
不过，共享内存不为使用它的进程提供任何访问控制。
Not all installations of PHP support shared memory because it can be a security risk.
并不是所有的PHP安装都支持共享内存，因为它可能是安全风险隐患。
In both cases an instance is a combination of background processes and Shared memory.
在这两者之中，实例都是指后台进程与共享内存的组合。
It is important that the database Shared memory and stack do not collide.
使数据库共享内存和堆栈不发生冲突，这一点很重要。
Object a starts right at the beginning of Shared memory.
对象A直接从共享内存的起始处开始。
The memory areas are known as the Shared memory segments.
内存区域是已知的作为共享内存的段。
Instance Instance Processes and Shared memory; in DB2, it also includes a permanent directory structure.
实例实例进程和共享内存；在DB 2中，它还包含一个永久目录结构。
However, Shared memory segments still can not cross quadrant boundaries.
不过，共享内存段依然不能跨越象限边界。
The application group memory set is allocated from the database Shared memory set.
应用程序组内存集是从数据库共享内存集中分配的。
Another process that accesses this Shared memory will be using this name for the access.
另一个进程将使用这个名称访问这个共享内存。
But what does Shared memory and private memory mean?
但是共享内存和私有内存的意义是什么呢？
We describe the sample code in which no Shared memory is used.
我们将简要介绍不使用共享内存的样例代码。
Same logic applies to the instance Shared memory and the application group Shared memory.
这样的逻辑同样适用于实例共享内存和应用程序组共享内存。
If the Shared memory object cannot be found, an exception is thrown.
如果无法找到这个共享内存对象，就会抛出异常。
The object construction is skipped if the Shared memory already exists.
如果共享内存已经存在，对象的构造就会被跳过。
定义一个共享内存池。
Before the parent can exit, however, it must free the Shared memory.
但是，在父进程退出之前，它必须释放共享内存。
The limit for database shared memory is around 3.5GB.
数据库共享内存的限制大约是 3.5GB。
Table 5. Configuration parameters that affect application Shared memory.
表5.影响应用程序共享内存的配置参数。
These resources are found within the database Shared memory (See Figure 1).
这些资源在数据库共享内存中(参见图1)。
Limit: Because Shared memory is pinned to physical RAM, it will never be swapped out.
限制：因为共享内存是固定到物理ram的，所以这种内存不会被换出。
The end address of the instance Shared memory segment is not fixed.
实例共享内存的结束地址是不固定的。
The slot manager sets up its database in a region of Shared memory.
槽管理器在共享内存区域设置其数据库。
That means the instance Shared memory can potentially be very large.
这意味着实例共享内存可能会很大。
Use the formula given earlier to calculate the database Shared memory.
可以使用前面给出的公式来计算数据库共享内存。
A similar solution is using Shared memory.
类似的解决方案是使用共享内存。
Problem: the database Shared memory is 1.66gb; it is less then the 3.35gb database Shared memory limit.
问题：数据库共享内存是1.66GB。这个数小于3.35 GB的数据库共享内存限制。
There is one instance Shared memory set per DB2 instance.
每个DB 2实例都有一个实例共享内存。
The Shared memory is treated the same as local process memory.
按照与本地进程内存相同的方式对待共享内存。
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