In Linux, the meaning of CPU load and CPU usage indicates that the Nagios alarm information was viewed yesterday. It was found that the CPU load on one of the servers was too heavy and the machine was CentOS. Information: 2011-2-15 (Tuesday) 17: 50
To solve the CPU usage is too high, first of all, we should understand what is the cause of high CPU, we mainly from the software and hardware to start with:
1, the software caused by the high CPU utilization rate
This is mainly
CPU clock speed, that is, the clock frequency (cpuClock speed ). In general, the CPU is as high as, And the is the "CPU clock speed ". Many people think that the CPU clock speed is its running speed. The clock speed of the CPU indicates the speed at
When we use the top command to see the system's resource usage, we see load average, as shown in. It represents the average workload of the system at 1, 5, and 15 minutes. So what is load? How does it relate to CPU utilization?Load average: The
Loadaverage is displayed when we use the top command to view system resource usage, as shown in. It indicates the average workload of the system in 1, 5, 15 minutes. So what is the load? What is the relationship between it and cpu utilization?
Summary of problems with high usage of mysql CPU bitsCN.com through previous operations on mysql, I first excluded the mysql configuration problem and checked whether msyql is running normally, view the *. errfile (change the extension name to .txt)
How to view machine configuration under Linux? cpu/Memory/HDDDmesgDisplays the boot information. The kernel will store the boot information in the ring buffer. If you are too late to view the information, you can use DMESG to view it. The boot
1, anti-virus software caused the failure
Because of the new version of KV, Jinshan, rising are added to the Web page, plug-ins, mail random monitoring, undoubtedly increased the system burden. Treatment: Basically there is no reasonable treatment,
Many users are now plagued by slow database problems and are struggling to pay for a professional DBA that is too expensive. Software maintenance personnel on the database is not so deep understanding, so that the problem can not be resolved, or can
Through previous operations on mysql, I first excluded mysql configuration issues and checked whether msyql is running normally. By checking the *. errfile In the mysql data DIRECTORY (change the extension name to .txt), I can check it in notepad.
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