Analyze the Startup process of Android system
As an Android developer, it is necessary to be familiar with the Android system startup process. The Android platform is based on the Linux kernel....
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Tag: The operating system
Operating system family – process and thread and browser kernel
January 6, 2024
by 張婷婷
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A process is the smallest unit of the operating system that allocates resources and runs independently. A process is an execution instance of an application,...
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MacOS Big Sur successfully opens HiDPI correct pose
January 6, 2024
by Mary Roberts
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MacOS Big Sur has stricter file protection. The command sudo unmount -uw/on 10.15 no longer works in Big Sur. In spite of this, HiDPI open...
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Pintos partial command options record
January 6, 2024
by Murray Wilkinson
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Pintos -v Turns off VGA output pintos -t treats the terminal as VGA output rather than creating a new window (Bochs only) Pintos -s suppresses...
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What are fixed point numbers?
January 6, 2024
by Eric Kelly
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In this article, we will first look at the relationship between fixed point number and integer and decimal. Agreed so people come up with a...
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What is a floating point number?
January 5, 2024
by Dr. Carol Jones
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In the previous article: What are fixed-point numbers? We mainly introduce the way of using fixed point numbers to represent numbers in computers. Just to...
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[mit6 s081] notes Lab3: Page tables | Page table
January 5, 2024
by Jessica Morales
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This is the third section of lab code notes for my self-study of MIT6.S081 operating system course: Page Tables. The approximate duration of this lab:...
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Recommended 10 good network monitoring tools, recommended collection!
January 5, 2024
by Tina Simpson
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It is ideal for users who do not use a GUI and want to keep their network managed through SSH. Iftop Linux users are generally...
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Process scheduling algorithm for operating system learning notes
January 5, 2024
by 崔志偉
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A brief overview of the process scheduling algorithms introduced in the book Modern Operating Systems lists some important points that are appropriate to read in...
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How many of the three implementations of single sign-on do you know?
January 5, 2024
by Pamela Howell
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In B/S system, the login function is usually based on Cookie. After a user logs in successfully, the login status is generally recorded in the...
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Operating system concept analysis of processes, threads, and coroutines
January 5, 2024
by Suzanne Patel
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Process, thread and coroutine do not replace each other, there is no superior or inferior, they are synergistic relationship, only the joint work of the...
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Principle of Synchronized
January 5, 2024
by Cameron Buchanan
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Synchronized is a Java lock keyword that can be used to lock objects, methods or blocks of code. When synchronized locks a method or block...
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Time slice, context, scheduling algorithm and other knowledge points
January 5, 2024
by Billy Mason
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Process module basic knowledge, including time slice, context, context switch, process scheduling algorithm, (process, thread, coroutine difference) and some minor issues
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Operating system family – interprocess communication
January 5, 2024
by Nitya Wagle
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What is Inter-process Communication? Inter-process Communication, abbreviated as IPC, means the transfer of information between different processes. It is a set of programming interfaces that...
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Tell him he doesn’t understand kill
January 5, 2024
by Alexander Miller
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I have met many programmers who may be familiar with several ways of writing for traversal, but have no idea about the environment in which...
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Processes, threads, coroutines, goroutines
January 5, 2024
by Matiu Bell-Gilbert
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A, process characteristics: process has an independent stack, stack resources are not shared between processes, scheduled by the operating system, a process can contain multiple...
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Android Audio & Video Guide – Overview of MediaPlayer
January 5, 2024
by Melissa Miranda
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The Android multimedia framework supports playing a wide variety of common media types, so you can easily integrate audio, video, and images into your applications....
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Talk about threads and processes & blocking vs. non-blocking & synchronous vs. asynchronous
January 5, 2024
by Chad Fuller
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Process is a program with a certain independent function on a data set of a running activity, process is a system for resource allocation and...
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Install beautiful Iterm2 from scratch, avoid trampling pits
January 4, 2024
by 喬彥廷
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2. Open iTerm2 and perform the following operations on iTerm2. 3. The 443 port connection is generally rejected because of the wall if you can
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CPU – instruction set analysis
January 4, 2024
by Scott Hughes
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In order for the generated object code to be executed by the CPU, it needs to use an API provided by the CPU, which is...
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Ubuntu: Ten years, ten key moments
January 4, 2024
by Neelofar Loke
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This is what Ubuntu looked like at the beginning of 2010: The Logo and font looked jazzy: Ubuntu used to look orange and brown, "Linux...
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Use INSTALL_MOD_STRIP to strip drivers at modules_install to reduce disk usage
January 4, 2024
by Lakshay Bala
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There is not enough space in /lib/modules to install the kernel. So I want to cut it out
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CSAPP- Chapter 8 — Exception Control Flow 1(Exception)
January 4, 2024
by 朱淑娟
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Exceptions refer to handing control to the system kernel, which is part of the operating system's resident memory, in response to events (such as a...
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XV6 learning (9) Lab cow: copy-on-write fork
January 3, 2024
by Robert Farrell
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The code is on Github. In general, if the COW mechanism is understood, the completion of this experiment is not very complicated. This experiment is...
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Qt- cross-platform C++ graphical user interface application framework (part 1)
January 3, 2024
by Nitara Biswas
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Qt is a cross-platform C++ graphical user interface application framework. It as early as 1991, trolltech company two partners working on such a platform, in...
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[mit6 s081] notes Lab2: System calls | System calls
January 3, 2024
by 賈淑貞
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Add some new system calls to Xv6 to help deepen your understanding of the Xv6 kernel.
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XV6 learning (13) scheduling
January 3, 2024
by Tracey Manning
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Almost all operating systems run many more processes than there are cpus, requiring time-sharing of cpus. Ideally this sharing should be transparent to user processes....
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A brief discussion on the I/O model often tested in interviews
January 3, 2024
by Aidan Reid
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There are several types of I/O, including memory I/O, disk I/O, and here we are talking about network I/O. Because communication between processes on our...
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XV6 learns (5) traps and system calls
January 3, 2024
by Ella Harrison
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In the operating system, there are three situations that will cause the CONTROL flow of the CPU to shift: in the user mode, the CPU...
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(16) Lab Net: Network Stack
January 3, 2024
by Alisha Chaudhari
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One last experiment, the code is on Github. This experiment is actually quite simple, is to achieve the network card e1000_TRANSMIT and E1000_RECv functions. But...
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