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Use the top command to see more than 100% CPU utilization under Linux

Source: Internet
Author: User
Tags bulk insert
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Today ran a very time-consuming bulk insert operation. When using the top command to view the CPU and memory usage, the CPU was checked by 120%. Never noticed before. By pressing 1 on the big keyboard in the case of top, the number of cores viewed by the CPU is 4 cores.

By looking through the Web, the top command shows the total number of CPUs your program consumes, which means that if you are a 4-core CPU, the maximum CPU occupancy is up to 400%,top and all usage rates are added together.

Here we can also look at the CPU information: on the command line input: Cat/proc/cpuinfo

Here you can see the CPU cores:4

Use the top command to see more than 100% CPU utilization under Linux

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