When analyzing the load characteristics running on linux machines, it is often necessary to analyze many metrics. CPU is one of the key factors affecting the efficiency of load operation. Here, the metrics of CPU extracted from promethues are analyzed in detail. It is also an in-depth understanding of linux CPU.
1. U ...
Added by snipe7kills on Wed, 15 May 2019 06:02:42 +0300
Learn Linux (8) Soft and Hard Links Every Day
Twenty practical examples of Linux ls commands
The instructions we learn today are the most common of our instructions, ls. The instructions refer to the man manual.
ls (LiSt directory contents) lists directory contents.
ls [optio ...
Added by forcom on Wed, 15 May 2019 00:50:39 +0300
I've reorganized the box for this log collection system, as shown below
The overall logic of the code to be implemented this time is:
The full code address is: https://github.com/pythonsite/logagent
Introduction to etcd
Highly available distributed key-value storage for configuring sharing and service discovery
Similar projects: zookee ...
Added by laflair13 on Tue, 14 May 2019 23:30:40 +0300
Every time selenium starts chrome browser, Chrome browser is clean, no plug-ins, no collection, no history. This is because selenium starts a naked browser to ensure the fastest running efficiency when starting chrome. That's why it needs to configure parameters, but sometimes we need more than a naked browser.
The selenium startup configuratio ...
Added by eruiz1973 on Tue, 14 May 2019 21:25:04 +0300
openssl components have been integrated in linux, so bloggers use examples to explain how to issue certificates under Linux system, because personal certificates are not recognized by Google Browser, so self-issued certificates can only be tested under Firefox browser!
1 openssl Certificate Generation Process
Once the certific ...
Added by chrispos on Tue, 14 May 2019 20:00:37 +0300
MySQL - Chapter 1 - Introduction and Installation
4. Enterprise Selection of MySQL Version
GA Version: Stable Release Version
Version 4.2 Type
E: Enterprise Edition, Charge Edition, SR (Service), Traditional Industry
C: Community Edition, Open Source, Internet Enterprise Choice
4.3 Enterprise Version Selection
Generally new ...
In the last section, we wrote a simple single led driver that can manipulate hardware.
In this section, we mainly show how to use multiple secondary device numbers to register multiple led drivers.
At the same time, we use the lower gpiolib library to use some special operations for gpio.
Here is the main code snippet.
Added by jibosh on Tue, 14 May 2019 16:26:46 +0300
Cloud server ESC deploys vsftpd virtual users
Description: Cloud server deployment and local server deployment need to open the specified port, but the cloud server needs to open the corresponding port in the security group rules to allow passage.
The corresponding user corresponds to different passwords and differ ...
What is the 0x00 pwd command?
pwd is used to display the path to the current directory.
How does the 0x01 pwd command work?
We know that a directory contains two special directories. and.. Representing the current directory and the previous directory, respectively.We can first find the inode node number of.And then go back t ...
This paper is a learning note based on Linux version number of mini2440 development board linux-18.104.22.168
I. Hardware information of uda1341
The CPU controls uda1341 chips through L3 interface, which are:
L3DATA: Data Line
L3MODE: Mode control line, 0, address mode; 1, data mode
L3CLOCK: Clock Line
data[7:2]: Rep ...