system idle process using high cpu

Recently, a timestamp system was written to record some important time nodes of each module in the system. Getting the kernel escalation timestamp is through the process polling, but found that the process in the actual running CPU utilization is very

Copy CodeThe code is as follows: post.phpfunction Post ($host, $port){$host = "127.0.0.1";Establish a connection$conn = Fsockopen ($host, $port);if (! $conn){Die ("Con error");}Send 5 data in a loop//for ($i = 0; $i {$data = "User_name=admin". $i;WriteData ($conn, $host, $data);echo $i. "";}Fclose ($conn);}function WriteData ($conn, $host, $data){$header = "post/test.php http/1.1\r\n";$header. = "Host: {$host}\r\n";$header. = "content-type:application/x-www-form-urlencoded\r\n";$header. = "

the execution is complete. It reduces the waste of resources that "occupy" the connection without using, and enhances the request processing capability in high concurrency scenarios. Because fewer threads are "idle", the number of threads decreases, and the memory footprint decreases in the same scenario.Event MPM fails when it encounters some incompatible modul

Principle: Use the screen in Ubuntu to protect the status of the process (gnome-screensaver-command-q) (its principle is to automatically lock the screen after the system is idle for a certain period of time ), determines that the computer is idle and executes a specificProgram. # ! /Bin/sh # This program is used

In our Win7 system, the task process services, in fact, we are not commonly used related services, usually these processes are to ensure the operation of the relevant applications automatically started service items, we call it a free service item, So we just need to turn off the infrequently used application services to save a lot of system resources for us to i

11 0 0 99 0 0 0 0 0 70376 169448 448484 0 0 0 0 175 406 0 0 100 0 0 0 0 0 70376 169448 448484 0 0 0 0 173 414 0 1 99 0 0 0 0 0 70376 169448 448484 0 0 0 128 212 429 3 0 96 1 0^C Echo Description:Returns the main data column description in the result: R: Represents the thread that the CPU in the system waits to process. Because the

time, the larger the number, it usually indicates that the system is running slower. US: The percentage of CPU time consumed by user mode. A higher value indicates that the user process consumes more CPU time, for example, if the value is longer than 50%, you need to optimize the program algorithm or code. SY: The per

top outputs are required. -P: Specify some PID to be observed and monitored. Key commands you can use during top execution: ? : Display the key commands that can be entered in top; P: Using the CPU to sort display the resources; M: The use of Memory resources to sort the display; N: Sort by PID. T: The CPU Time accumulation (time+) used by the

quiet.Process files: Cidaemon or Cidaemon.exeProcess name: Microsoft indexing ServiceProcess Category: Other processesEnglish descriptive narrative:Cidaemon.exe is a Indexing service which catalogues files on your computer to enable for faster file searches.Chinese references:Cidaemon.exe is an Indexing service that allows you to find files more rapidly.Producer: Microsoft Corp.Belongs to: Microsoft Windows Operating SystemSystem process: YesBackgrou

quiet.Process files: Cidaemon or Cidaemon.exeProcess name: Microsoft indexing ServiceProcess Category: Other processesEnglish descriptive narrative:Cidaemon.exe is a Indexing service which catalogues files on your computer to enable for faster file searches.Chinese references:Cidaemon.exe is an Indexing service that allows you to find files more rapidly.Producer: Microsoft Corp.Belongs to: Microsoft Windows Operating SystemSystem process: YesBackgrou

cron. daily nice run-parts/etc/cron. daily # log cutting timing task in this 7 25 cron. weekly nice run-parts/etc/cron. weekly @ monthly 45 cron. monthly nice run-parts/etc/cron. monthly 5. Thinking and optimization:1. It is not recommended to use anacrontab on the server and continue to use crontab; (this problem does not exist in RHEL5 );2. In fact, the use of nice commands by anacrontab does not cause any problems, mainly because it works with restart in the php-fpm STARTUP script;3. If php-