opkbusiness.blogg.se - Linux memory monitoring

(TL DR: swapping is moving an entire process out to disk paging is moving just specific pages out to disk, not an entire process. What do you think about vtop? Let us know via the comment form below.In a prior blog post, I talked about what virtual memory is, the difference between swapping and paging, and why it matters. Vtop has many features in the pipeline including measuring server requests, log entries, etc. To get vtop help, run the following command. You can also set vtop to terminate after some seconds, using the -quit-after option as shown. In this example, 20 milliseconds is equivalent to 0.02 seconds: # vtop -update-interval 20 To set the interval between updates (in milliseconds), use the -update-interval. You can choose any of the available themes (acid, becca, brew, certs, dark, gooey, gruvbox, monokai, nord, parallax, seti, and wizard), for example: # vtop -theme wizard To change the color scheme, use the -theme switch.

dd kill all the processes in that group (you have to select the process name first).

g takes you to the top of the process list.

j or arrow down moves down the process list.

k or arrow up moves up the process list.

u updates to the latest version of vtop.

The following are vtop keyboard shortcuts, pressing: # sudo npm install -g vtopĪfter installing vtop, run the following command to launch it. Use the sudo command if necessary to gain root privileges for package installation. Once your system has Node.js and NPM installed, run the following command to install vtop.

How To Install Latest Node.js and NPM in Linux.

Requirements:Īs a prerequisite, your system must have Node.js and NPM installed, otherwise, see this guide: In this article, you will learn how to install vtop monitoring tool in Linux. Additionally, it group processes with the same name (master and all child processes) together. Vtop uses Unicode braille characters to draw and display CPU and Memory usage charts, helping you visualize spikes. vtop also makes it easy to see spikes over time as well as memory usage. It is designed to make it easy for users to view CPU usage across multi-process applications (those that have a master process and child processes, for example, NGINX, Apache, Chrome, etc.). That’s why we today introduce you to vtop – is a free and open-source, simple yet powerful and extendable terminal activity monitoring tool written in Node.js. Command-line tools like “ top” make it hard to monitor CPU usage and memory usage.