In July August 31, 1976, Wu yanfeng was born in Changchun, North China. He was the second child in the family. He had a sister and one younger brother and one younger sister. Childhood is simple and happy, just like what Luo Dayou sang in his childhood: "On the banyan tree at the side of the pondThe sound of the sound of a butterfly on the swing side of the summer playground ......" Wu yanfeng said that he was very free from childhood. "His parents are all public institutions, he is very busy at
1.uptime commandOutput: 16:11:40 up, 4:21, 2 users, load average:0.00, 0.01, 0.002. View the/proc/uptime file calculation system start timeCat/proc/uptimeOutput: 5113396.94 575949.85The first number is the system has been running for 5,113,396,.94 seconds, using the System tool date to calculate the system boot time
Code:
[[email protected] ~]# date-d "$ (awk-f. ' {print $} '/proc/
In the analysis of the system, one of the first and most basic tools is often a simple measurement of the CPU utilization of the system. Linux and most unix-based operating systems provide a command to display the system's average load (loadaverage).
[huangc@v-02-01-00860 ~]$ uptime 11:18:05 up for days
, 1:17, one users, load average:0.20, 0.13, 0.12
Specifically, the average load value represents the average number of tasks that can be run with
Tags: random 5.4 Good handle OBA Rev calculation option occupiedMySQL performance index calculation and optimization method1 QPS calculation (number of queries per second)For MyISAM engine-based DB Mysql> show global status like ' questions '; +---------------+------------+ | variable_name | Value | +---------------+------------+ | Questions | 2805815665 | +---------------+------------+ 1 row in Set (0.00 sec) mysql> show global status like ' uptime
If you want to write ruby code on your own and deploy it at any time, you can view it everywhere. The heroku domain name is unfriendly and slow in China, so I think of capistrano, so I started learning...
Capistrano
Https://www.evernote.com/shard/s6/sh/72a2b7c8-d531-4efc-9e16-ac82af2a92b7/e54fca8a9e7014ad87c79e7a7a5538c4
Capistrano new version installation
Http://capistranorb.com/documentation/getting-started/preparing-your-application/
Http://capistranorb.com/
# Deploy in GemfileGem 'capis
Tags: showstatus; flushstatus; view current number of connections SHOWSTATUSLIKE ' thread_% '; Thread_cached: Number of threads cached thread_running: Number of threads active thread_connected: Number of threads currently connected thread_created: The number of threads that are created in total cachehitsthread_connected=showglobalstatuslikethread_ Created connections=showglobalstatuslike ' Connections '; Tch= (1- (threads_created/connections)) *100 View active connection content showprocesslist
%, creating a connection takes time and increases the number of thread_cachedQPS(query throughput per second) MyISAM engineQuestions = SHOW GLOBAL STATUS like ' Questions ';Uptime = SHOW GLOBAL STATUS like ' Uptime ';Qps=questions/uptimeTps(number of things transferred per second), that is, the number of transactions processed per second by the server, and if InnoDB is displayed, no InnoDB will be displayed
Baidu front-end Technical College-Xiaowei College (HTML + CSS course tasks), Xiaowei cssTask 1: Basic HTML coding course overview
Job submission deadline: 04-24Important
The course tasks of Baidu frontend Institute of Technology are designed by Baidu frontend engineers for students with different levels of knowledge on the frontend. We try our best to ensure the quality of the course content and the rationality of the learning difficulty, but even so,
C # overview of the object-oriented design model (1): Face-to-Face Design Model and mongo.zip
Lecture content: this training course introduces the basic concepts and principles of object-oriented design patterns and demonstrates the practical application of Object-Oriented Design Patterns in. NET Framework programming. Course Lecturer: Li Jianzhong Senior Training lecturer of Shanghai Zhucheng Information Technology Co., Ltd.. msdn Invited lecturer. Net Technical Expert
National standardization committees in each country are made up of personnel from local producers and operators, as well as experts from the local standards Expert committee. The international and European Committee on Standardization is composed of representatives accredited by the participating States, who are generally selected by the participating countries in the National Standardization Committee. Standards are documents published and issued by the various standardization committees based
There are two sorting fields, the update time: upTime release time: After the addTime article is published, there will be its release time. If you modify the article, a modification time will be saved. Sort data on the homepage according to the following rules: 1. If an article with an update time uses upTime, only the published time uses ad..., there are two sorting fields,
Update Time:
Original post address:Http://community.csdn.net/Expert/topic/3662/3662135.xml? Temp =. 4289972.
-- Test DataCreate Table Tb (ID int primary key, grade varchar (10), uptime datetime)Insert TB select 1, 'A', '2017-12-11'Union all select 2, 'B', '2017-12-11'Union all select 3, 'C', '2017-12-11'Union all select 4, 'A', '2017-12-12'Union all select 5, 'C', '2017-12-13'Union all select 6, 'C', '2017-12-13'Union all select 7, 'A', '2017-12-14'Union all Selec
SHOW STATUS;FLUSH STATUS;View current number of connections show STATUS like ' thread_% ';Thread_cached: The number of threads being cachedThread_running: The number of threads in the active stateThread_connected: The number of threads currently connectedthread_created: Number of threads created in totalThread Cache Hitsthread_connected = SHOW GLOBAL STATUS like thread_created;Connections = SHOW GLOBAL STATUS like ' Connections ';Tch= (1-(threads_created/connections)) * 100View Active Connected
View boot time in WindowsUnder Windows, you can use the systeminfo command to view.Here's what the site extracts about how long windows started.1.Windows systems can see how long it has been running from power on to now, which is useful, for example, in order to test the stability of the system, or for other reasons, to know how long the Windows operating system has been running, without the need for special tool software to view it, The operating system itself can do, the following to see the s
Free inquiry. Two edit SMS "GKCF examinee number", Send to 10628833,.Three automatic voice information platform: Netcom users dial 16897788, telecommunications users dial 16817788, railcom users to dial 95105168, according to the voice prompts to enter the examinee number can be queried candidates results.Four is artificial information desk, Netcom users dial 1607788, through and operator Interactive inquiry Hebei June 23 1. Dial 168 information desk;2. Login to Hebei Education Examination Inqu
student number = 22050110+floor (RAND () *10)9. SELECT MyValue as value, sign (myvalue) as judgment value from Tb_valueSix-string query1. SELECT Friendname As String, LOWER (Friendname) as all converted to lowercase, UPPER (friendname) as all converted to uppercase from tb_string2. SELECT Friendname As String, (LEN (Friendname)-len (REPLACE (friendname, ' I ', ')))/len (' I ') from tb_string3. SELECT student name, institution, SUBSTRING (institution, 2,3) as school substring from tb_student4. S
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