第8章介绍了如何创建进程、在它们之间发送消息,等等。
Chapter 8 shows how to create processes, send messages between them, and so on.
这种影响是由数据库资源管理器进程创建和摧毁那些对象而引起的。
That impact is due to the overhead in creating and destroying those objects by the database resource manager process.
如果希望探察两个UNIX进程,那么要创建两个管道,重新连接每个进程的文件描述符,让它们同时作为生成者和消费者。
If you want to peer into two UNIX processes, the create two pipes and rewire the file descriptors of each process to act both as a producer and a consumer.
每个证明者都有一个已发出证书列表(ICL)数据库,这是在证明者迁移到CA进程时创建的。
Each certifier has an Issued Certificate List (ICL) database that is created when the certifier is migrated to the ca process.
由于每个页都要由每个进程映射,必须创建页表条目来将虚拟地址映射到物理地址。
For every page mapped by each process, page-table entries must also be created to map the virtual address to the physical address.
就处理器周期和使用的内存而言,创建进程的代价较高。
Process creation is expensive in terms of processor cycles and memory usage.
由于这些进程已经存在,因此操作系统不需要浪费宝贵的时间来创建进程、为之分配内存等等。
Since these processes already exist, there's no need for the operating system to waste valuable time to create a process, allocate memory to it, and so on.
另外,进程将无法创建新的线程,因为无内存可供创建新线程使用。
Further, the process will fail to create any new threads since no memory is available for creating new ones.
可以在WPAR中创建的进程和线程数量。
The number of processes and threads that can be created inside a WPAR.
创建一个新文件时,创建进程就会指明新文件的权限。
When a new file is created, the creation process specifies the permissions that the new file should have.
创建内核进程也是一样。
gencore实用程序为指定的每个进程创建核心映像。
The gencore utility creates a core image of each specified process.
注意:在Windows中,受可用虚拟内存的限制,一个进程可以创建的线程数目是有限的。
Note: in Windows, the number of threads a process can create is limited by the available virtual memory.
如果将此选项设置为1,urlscan将为承载urlscan . dll的每个进程创建一个单独的日志。
If this option is set to 1, URLScan creates a separate log for each process that hosts URLScan.dll.
通过使用移动设备管理中心(Mobile Device Administration Center, MDAC)配置同步进程、创建复制存储以及定义订阅和访问控制。
Configure the synchronization process, create the replication store, and define subscriptions and access controls using Mobile Device Administrator Center.
一个mysql服务器进程(mysqld)能创建几个线程。
A mysql server process (mysqld) can create a number of threads.
进程的创建、执行和清理代价都很大。
为了便于说明,我使用Ant构建进程创建了一个称为business的包。
For demonstration purposes, I have created a package called business using an Ant build process. There are several reasons for the independent business layer.
在清单5所示的代码片段中,进程创建了一个可包含20个整数的消息队列。
Listing 5 shows a code snippet in which a process has created a message queue of 20 integers.
只要应用程序从有限的几个永久进程中创建和关闭连接,连接池就可以改善性能。
If the application creates and drops connections from a limited number of persistent processes, the connection pooling will certainly improve the performance.
因此,为了监视和控制进程创建,我们所有要做的就是钩住这些API函数-它们无法旁路掉要创建一新进程所要执行的代码。
Therefore, in order to monitor and control process creation, all we have to do is to hook those API functions that cannot be bypassed by the code that is about to launch a new process.
尽管我们可以在创建进程时指定环境,不过也有特定函数可以在进程创建后设置和获得环境变量。
Even though we can specify the environment when we create the process, there are also specific functions to set and obtain environment variables after the process is created.
例如,将DB 2通信侦听器作为系统进程进行创建。
For example, the DB2 communications listeners are created as system processes.
应用程序WPAR只是一些临时对象;在启动进程时创建它们,在应用程序分区中的最后一个进程结束时销毁它们。
Application WPARs are only temporary objects; they are created when the process is started and destroyed when the last process within that application partition ends.
父PID (PPID)的存在意味着这是一个由别的进程创建的进程。
The presence of a parent PID (PPID) implies that one process is created by another process.
父PID (PPID)的存在意味着这是一个由别的进程创建的进程。
The presence of a parent PID (PPID) implies that one process is created by another process.
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