System Administration

Essential System Tools: nmon – Curses based Performance Monitor



This section offers some basic information about the processor and the Linux kernel version.

As you can see from the image below, we’re running Linux kernel version 4.15.0-43 with a quad-core Intel Core i5-2500K processor.

Nmon reports a BogoMips rating of 6619.66. BogoMips (from “bogus” and MIPS) gives some indication of the processor speed. It’s a benchmark calculated by the kernel measuring how fast a certain type of busy loop runs.

The machine is reported as x86-64. Also known as x64, x86_64, AMD64 and Intel 64, this is the 64-bit version of the x86 instruction set. It introduced two new modes of operation, 64-bit mode and compatibility mode, along with a new 4-level paging mode.

There’s some simple CPU information including the current CPU frequency, the number of processors in the machine with its number of physical cores, and whether hyperthreading is present.

Next page: Page 11 – Summary

Pages in this article:
Page 1 – Introduction / Installation
Page 2 – In Operation
Page 3 – CPU Stats
Page 4 – Memory Stats
Page 5 – Disk Stats
Page 6 – Kernel Internal Stats
Page 7 – Virtual Memory Stats
Page 8 – Network Stats
Page 9 – Top-processes
Page 10 – Resources
Page 11 – Summary

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Mark Regan
Mark Regan
4 years ago

What terminal/window settings do I use in PuTTY when running nmon to get the correct line drawing?