How to install Htop on CentOS / Ubuntu VPS and check CPU usage tutorial

Bricklayer has strict CPU limits. If our VPS exceeds the CPU usage limit, it will be suspended. There are three opportunities to unblock within a year. If you are suspended more than three times, you can only wait until the following year to unblock. Therefore, we still need to pay more attention not to exceed the CPU limit during use. If our VPS accidentally exceeds the CPU usage limit and is suspended, although it can be temporarily unblocked, we still need to know why this is the case, so today we will introduce how to check the CPU usage. Although the top command can also check, but It doesn’t look so comfortable and intuitive. In this article we will introduce viewing through the htop command.

Install htop command

Generally speaking, everyone may be familiar with using top to view VPS resource usage, but top is cumbersome to view and the page is not very friendly, so it is recommended to use htop, which can display clearer statistical results. htop can customize the sorting results and can also be operated directly using the mouse, which is very convenient.

Installation method:

CentOS:

Installation on CentOS is more troublesome. It is recommended to try method one first, and if it fails, try method two.

Method 1:

yum -y install epel-release
yum -y update
yum -y install htop

If method one fails and prompts that there is no htop, then continue to try method two:

yum -y install ncurses-devel wget
wget http://hisham.hm/htop/releases/2.0.2/htop-2.0.2.tar.gz
tar xvfvz htop-2.0.2.tar.gz
cd htop-2.0.2
./configure --disable-unicode && make && make install

After the installation is complete, enter htop to check whether the installation is successful. Generally speaking, there is no problem.

Debian / Ubuntu:

apt install -y htop

Use the htop command to check resource usage such as CPU

After entering htop and pressing Enter, you can see the htop page. The details are shown in the figure below. You can click CPU to sort the processes according to CPU, and you can see which processes occupy particularly high CPU. In addition, click on MEM to sort the memory to see which process consumes the most memory, and so on.

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