Linux kernel synchronization of each CPU variable, atomic operation, memory barrier, spin lock __linux

The various "Tasks" in the Linux kernel can see the kernel address space, so they also need synchronization and mutual exclusion. The synchronization/Mutex methods supported by the Linux kernel include: Technology Function Scope

Linux Date command usage __linux

The function of the date command is to display and set the system date and time. The general format for this command is: date [options] Displays the time format (beginning with +, followed by formatting) Date set time format The meanings of the

Linux serial port programming detailed Linux serial related Settings function

Tcgetattr function is used to obtain terminal-related parameters. Parameter FD is a terminal file descriptor, and the returned result is stored in the Termios structure. Http://baike.baidu.com/view/5644808.htm?fr=aladdin The TCSETATTR function is

Linux Network Services--FTP full Raiders (VSFTPD) __linux

/etc/vsftpd/vsftpd.conf document detailed, divided into good categories, convenient for everyone to find and learn ################ #匿名权限控制 ############### Anonymous_enable=yes #是否启用匿名用户No_anon_password=yes #匿名用户login时不询问口令 The following four main

Docker inside Docker based on Alpine Linux

Study fromHTTPS://hub.docker.com/_/docker/Feeling a word these people really cow B.Simple testPull MirrorDocker Pull Docker:dindRun mirrorDocker run-it--privileged--name dind-d docker:dindView image[email protected] ~]# Docker exec-it some-Docker SH/

General permissions and several special permissions under Linux systems

1. Basic permissions and permissions management for users1. First of all, we want to manage user rights, we need to know how to view the permissions of a file, we can use the LL command or LS-L command to view the permissions of a file, such as:We

4 Tools for building embedded Linux systems-turn

Transferred from: 4 Tools for building embedded Linux systemsLinux was deployed to a wider range of devices than Linus Torvalds in his dorm. The shocking support for a variety of chips allows Linux to be used on large and small devices: from IBM's

What are the differences between x86 and arm under Linux?

Problem:Recently, with a Samsung i5 processor, the Windows tablet, and the ipad, as well as other mobile phones using arm processors, compared to a lot more heat, and even need to use a fan to cool, a lot of power consumption.Then it is very strange,

2018-04-18 the meaning of the English abbreviation for Linux commands (easy to remember)

Enter Gedit in the terminal to open the file editor in the attachment, enter GED before you can tab out all.In the terminal, enter Firefox to open the attachment in Firefox, enter firef before you can tab out all.Enter "Nautilus directory" in

Use PhotoRec & TestDisk tools to recover files under a Linux system

When you delete a file by intentionally or unintentionally using shift + delete a key combination, delete option, or emptying the Recycle Bin in the system, the contents of the file are not destroyed directly from the hard disk (or other storage

2017-2018-2 20179204 "Network attack and Defense practice" First week learning summary of the Linux Foundation

I studied the basic Linux Basics course in the lab building, where I made a learning summary. Introduction to the first section of Linux systems This section focuses on what Linux is, what it's like, how it's going, what's important, what'

Linux view CPU and memory usage

During system maintenance, it may be necessary to review the CPU usage at any time, and to analyze the system condition according to the corresponding information. In CentOS, you can view CPU usage by using the top command. After running the top

Conversion of WAV and AMR to ffmpeg under Linux

Reprint: http://blog.csdn.net/sanshipianyezi/article/details/78742621Reprint: http://blog.csdn.net/szfhy/article/details/50441162Under Linux for the conversion of WAV and AMR, if it is AMR to wav only need ffmpeg can but if WAV to AMR will need to

Linux Configuration NTP time server (full)

(a) Confirm NTP installation 1) Confirm that NTP is installed"Command" RPM–QA | grep NTPIf you have only ntpdate and you do not see NTP, you need to delete the original ntpdate. Such

Configuring Your EMS Server or EMS Console server on Windows/linux

EMS Configuration FilesRAD Studio provides the scripts to render the Web-browser console, the EMS server configuration file and the script to CRE Ate the EMS database, and the stand-alone applications to run the EMS Console Server and the EMS server.

Use valgrind to discover memory problems in Linux programs

Use valgrind to discover memory problems in Linux programs Back to Top Valgrind Overview Architecture Valgrind is a set of simulation debugging tools for open source code (GPL V2) in Linux. Valgrind consists of core and other kernel-based debugging

Design of touch screen Driver Based on QT/embeded in Embedded Linux

Summary: This article mainly introduces the design of the touch screen Driver Based on QT/embeded in the embedded Linux system, and introduces the working principle and mechanism of the driver interface of the Linux device and the QT/embedded device,

Partition Method larger than 2 TB in Linux

Format and mount a hard disk larger than 2 TB in Linux, partition method larger than 2 TB in Linux, Linux GPT partition... First, we will introduce two types of partition tables: MBR Partition Table: (MBR meaning: Master Guide record) Maximum

Use Kali Linux subsystem for Windows 10

Use Kali Linux subsystem for Windows 10 Microsoft has already brought the well-known Kali LinuxWindows Subsystem for Linux (WSL) to WSL. Now, let's try to replace Ubuntu with native Kali, bash on Kali on Windows. Then Windows will become the

Python, ipython, and IDE tool Pycharm installation tutorial in Linux, ipythonpycharm

Python, ipython, and IDE tool Pycharm installation tutorial in Linux, ipythonpycharm Advantages of python (1) Simple, elegant, and clear (2) powerful third-party library module (3) cross-platform porting (4) An object-oriented language Disadvantages

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