Linux

Recently responsible for the SVR pressure is large, business logic is a little more complex, can optimize the place has been all optimized, Currently 3k per second, CPU load is still relatively high Top look, 4 core CPU load is not too balanced, it

[TOCM] install git and deploy public key install sudo yum install git linux create SSH keySsh-keygen-t rsa-c "xxxxx@xxxxx.com" #使用邮箱创建 view public key Cat ~/.ssh/id_rsa.pub execute the following command to add the public key to the Git@oscSsh-t

1 Linux Device models The Linux 2.5 kernel introduces a new device model designed to manage all devices on the computer in a unified way. It contains the following infrastructure: Type Description Equipment devices

I. Soft interrupts and tasklets 1. Delayed processing of interrupts In the process of interruption, there are some non-critical tasks that can be deferred for a period of time when needed. For an interrupt service program, a new interrupt should

Look at the USB drive is the device, and then mount-t vfat/dev/to find the disk/your directory One Linux is not like Windows, after the new hardware can be automatically recognized, in Linux cannot automatically identify new hardware, need to

Linux system to do bonding network card binding, this test is the use of the environment CentOS 6.3 + virtual machine + Dual network card, installed in the virtual network card, will not be the product ifcfg-eth1 files, need to manually copy

Today I learned a few commands, is to create, delete files and folders, in Linux, folder is a directory, the following next I learn the command. Create a folder "MkDir" one, mkdir command use permissions All users can create folders or directories

RABBITMQ Installation Tutorial Introduction:RABBITMQ is a popular open source Message Queuing system developed in Erlang language. RABBITMQ is the standard implementation of AMQP (Advanced Message Queuing protocol). If you are unfamiliar with AMQP,

First of all, thanks to Jia Nan's help. Environment: Linux Ubuntu 14.04 QT4.8.5 Qt creator2.8.0 OpenCv2.4.9 OPENCV installation has said before, the installation of Qt can be its own Baidu, QT source code compiled when the time is longer, I

Original address: http://blog.csdn.net/chehlcy/article/details/5456118 (I have been modified, and the possible problems to give a solution) Making a cross-compilation tool chain is a hassle, because cross-compilation ntfsprogs have to do it all over

What is the Linux system architecture. To understand the Linux system, you must have a certain understanding of its system architecture, the following small series on the Linux system to bring the architecture of the explanation, interested

In Linux systems, there are times when multiple processes work together to accomplish a task, between processes or between threads that sometimes need to pass information, and sometimes to coordinate with each other, interprocess communication

Hardware platform: Freescale IMX6 Kernel version: kernel3.0.35 Linux's I2C subsystem is divided into three layers, I2C core layer, I2C bus driver layer and I2C device drive layer. I2C core layer is provided by kernel developers, I2C bus driver

First, Udev In the 2.6 kernel, Udev is used to replace the hotplug. According to Udev's author, Greg K.H, the reason for the hotplug is SYSFS, which produces a lot of hotplug events, far exceeding the 2.4 kernel (as long as the device driver that

Recently started to learn Linux, about the/tmp folder, The/tmp folder is where the Linux temp files are stored, the files in the/tmp folder in the Linux system are emptied, and how long they are emptied and how they are emptied may not be clear. In

reproduced from: http://www.cnblogs.com/gaojun/archive/2013/10/24/3385885.html first, view and manage the currently logged-on user 1. Use the W command to view the process information that the logged-in user is using,the W command to display the

Linux Device driver inductive summary (eight): 3. The layering and object-oriented thought of equipment management Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx The previous section describes the

Recently encountered on the project to compress some pictures on windows, picture file names are Chinese, SCP to Linux with unzip after the file name All is garbled, find a half-day solution, the following test feasible, special record, and you

How to view system startup time and run time under Linux 1. View/proc/uptime file Computing system startup time: Cat/proc/uptime Output: 5113396.94 575949.85 The first number is the system has been running for 5,113,396,.94 seconds, using the

Linux FTP prompts--553 could not create file (absolutely useful)Hint 553 could not create file, the owner of this directory and permissions are set up, or report this error, that carefully online check, the problem solved as follows: Command: ftp>