打开新标签时，谷歌浏览器究竟做了什么? [英] What does the Google Chrome exactly do when a new tab is opened?

问题描述

今天，我观察到一个有趣的行为.我使用的是 windows XP-sp3 操作系统.
当我在 Google Chrome 中打开一个新标签时查看任务管理器，创建了一个新进程.
但是，一段时间后，此过程终止.

Today, i observed an interesting behavior. I am using windows XP-sp3 OS.
When i open a new tab in Google Chrome & view the task manager, a new process is created.
But, after some time, this process is terminated.

为什么会出现这种行为?是因为系统调用vfork()?子进程是否立即调用exec()?

Why it is showing such kind of behavior? Is it due to system call vfork()? Does the child process immediately call exec()?

这种情况是否只发生在 Google Chrome 或所有其他浏览器的行为方式类似?

Does it happen only with Google Chrome or all other browsers behave in a similar fashion?

推荐答案

AFAIK Chrome 为每个选项卡维护一个进程，也为某些插件维护一个进程.他们更喜欢多进程架构而不是多线程架构，因为当您制作始终与网络通信的网络应用程序时，您可能会收到可能导致内存混乱的数据包.因此，拥有多进程将阻止除一个进程之外的所有进程，而不是多线程会杀死选项卡.

AFAIK Chrome maintains one process for each tab, also one process for some plugins too. They preferred multi-process architecture over multi-threaded one because when you are making network application which communicate with network all the time, you can expect to receive packets which can garble the memory. So having multi-process will prevent all but one process, as opposed to multi-threaded will kill the the tabs.

您可以通过以下博客启发自己:

You can enlighten your self on following blog:

http://blog.chromium.org/2008/09/多进程架构.html

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