This section discusses each model in greater detail caveats in Chromium's current implementation are described later in this document.īy default, Chromium creates a renderer process for each instance of a site the user visits. These models differ in whether they reflect the origin of the content, the relationships between tabs, or both. However, users can specify command-line switches when starting Chromium to select one of the other architectures: one process for all instances of a web site, one process for each group of connected tabs, or everything in a single process. By default, Chromium uses a separate OS process for each instance of a web site the user visits. Chromium supports four different process models to allow experimentation, with a default model that best fits most users.Ĭhromium supports four different models that affect how the browser allocates pages into renderer processes. There are many ways that a web browser could be segmented into different OS processes, and choosing the best architecture depends on many factors, including stability, resource usage, and observations from actual usage. Users can also view the resource usage of each process in Chromium's Task Manager. This improves robustness because each process runs in its own address space, is scheduled by the operating system, and can fail independently. Chromium is built like an operating system to run these applications in a safe and robust way, using multiple OS processes to isolate web sites from each other and from the browser itself.
![dos a single or multi processing operating system dos a single or multi processing operating system](https://image.slidesharecdn.com/amansingh-131009051405-phpapp02/95/operating-system-25-638.jpg)
![dos a single or multi processing operating system dos a single or multi processing operating system](https://slidetodoc.com/presentation_image_h/a8156d556691f220864bb59db651001e/image-17.jpg)
This evolution has changed the role of the browser into an operating system rather than a simple document renderer.
#Dos a single or multi processing operating system code
Web content has evolved to contain significant amounts of active code that run within the browser, making many web sites more like applications than documents.
![dos a single or multi processing operating system dos a single or multi processing operating system](https://digitalthinkerhelp.com/wp-content/uploads/2020/01/m123.jpg)
This document describes the different process models that Chromium supports for its renderer processes, as well as caveats in the models as they exist currently.