how to check cpu usage

About the inconsistent CPU usage of the Vmstat,top,ps aux viewProblem:Use the vmstat,top, and PS aux three commands to see the CPU occupancy rate of the process, the value varies greatly.Cases:Use Vmstat to view the system CPU idle rate, ID is the CPU idle rate, it can be se

1, check the system CPU load and utilization of the command is: Top VmstatTop command: View CPU usage at the process level.Vmstat command: View system-level CPU usage.The following is a detailed illustration to analyze:The 1.1 Top command can view the

Linux process high cpu problem analysis 1 use the top command to check which process occupies CPU high gateway process 14094 occupies CPU up to 891%. this value is the cumulative value of CPU usage by each thread in the process. P

In Windows + IIS6, w3wp memory usage often fails to be released in time, resulting in slow server response.After studying it today, you can make the following configurations:1. Separate applications for each website in IISProgramPool configuration. That is, they do not affect each other.2. Set the recycle time of the application pool. The default value is 1720 hours, which can be modified as needed. At the same time, set the number of w3wp processes t

look at how these 3 tools work and their pros and cons. Simulate high CPU usage Before we analyze these 3 technologies, we need to install a tool to simulate high CPU usage scenarios. We use CentOS as a test system and use the prime number generator in Mathomatic toolkit to simulate

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? When we use the top command to view the system resource usage, we will see the load average, as shown in. It indicates th

　 The reason for high CPU usage 1. The computer runs a large program, such as large games, 3D network games and so on, this situation is usually normal, such programs require more CPU resources, users will be large program exit for a period of time, the CPU utilization rate is basically back to normal; 2. If the com

m:D:/web/mysql> notepad C:/Windows/My. ini[Mysqld]Tmp_table_size = 200 m Then restart the MySQL service. CPU usage is slightly reduced. The previously used CPU usage waveform is 100% in a straight line, and now it is 97% ~ 100%Between ups and downs. This indicates that adjusting the tmp_table_size parameter can impr

Solution to high CPU usage in win10 System With the release of the win10 preview version, more and more users have installed the win10 system to experience the power of the win10 system. In a computer, CPU is the core part. Some users find that the CPU usage is very high, s

first SQL statementLEFT JOIN ONClause: LEFT JOIN _myuser AS t3 ON t1.userid=t3.userid _ Mydata userid is involved in the condition comparison operation. So I created an index for the _ mydata table based on the field userid: mysql> ALTER TABLE `_mydata` ADD INDEX ( `userid` ) After this index is created, the CPU usage immediately drops to about 80%. When the problem is found,

first SQL statementLEFT JOIN ONClause: LEFT JOIN _myuser AS t3 ON t1.userid=t3.userid _ Mydata userid is involved in the condition comparison operation. So I created an index for the _ mydata table based on the field userid: mysql> ALTER TABLE `_mydata` ADD INDEX ( `userid` ) After this index is created, the CPU usage immediately drops to about 80%. When the problem is found,

; Possible cause 3. CPU resources by the browser to high CPU usage, and now the browser is mostly multi-page display, which will cause the browser to occupy too much memory and CPU resources, netizens in the high CPU usage can be

Let the multi-core CPU usage curve listen to your command-the beauty of programming 1.1 Study Notes Problem: Write a program to determine the CPU usage of the Windows Task Manager. There are several situations: 1. The CPU usage is

If you have some questions about the practical application of Oracle CPU optimization, the following articles mainly introduce the practical application solutions for optimizing Oracle CPU usage using Oracle to optimize CPU usage, to solve your actual operation problems when

The w3wp occupancy rate in the discovery process is too high.After the query, found as follows:W3wp.exe is a process that is associated with an application pool in IIS (Internet Information Server), and if you have multiple application pools, there will be multiple W3wp.exe process instances running. This process is used to allocate a large amount of system resources. This process is of great importance to the stability and security of the system and cannot be easily terminated.Find a workaround

Recently, I have read a part of the thread of CLR via C #, which greatly improves the understanding of the thread. As a result, I suddenly remembered a book I saw in guanggu bookstore in college about Microsoft's interview. After several pages, I found that the author was talking about the problem. At that time, I felt that this author was very good at B, because the level of food at that time was still relatively good. Then I forgot. (Of course I didn't buy that book, but I didn't expect to app

Source: hacker BaseWhen we use the Windows XP operating system, the system slows down when we use it. When we look at "Task Manager", we find that the CPU usage reaches 100%. How did this happen? In this article, I will explain why the system resource usage reaches 100% from three aspects: hardware, software, and virus.CPU us