glances – new way to look at contention

2018-06-04 1 min read Fedora

glances is like top/htop but little different. It shows you sort based on contention (smartly and automatically) unless you change that and hence if you just want to check what is biggest bottleneck in system, then head over to glances quickly. Here is quick description from dnf info command

 

Name : glances
Version : 2.11.1
Release : 2.fc28
Arch : noarch
Size : 3.2 M
Source : glances-2.11.1-2.fc28.src.rpm
Repo : @System
From repo : fedora
Summary : CLI curses based monitoring tool
URL : https://github.com/nicolargo/glances
License : GPLv3
Description : Glances is a CLI curses based monitoring tool for both GNU/Linux and BSD.
Glances uses the PsUtil library to get information from your system.
It is developed in Python.

Are you swapped? Increase the performance of Linux machine.

2010-07-14 2 min read Fedora Linux

With the ever increasing cost of the Hardware, the amount of physical RAM available on the system is increasing day by day. For example, couple of years back, I had a system which was very high end Desktop with 256MB RAM and today I have a 2GB RAM Desktop. So, whats the point.

The Linux systems (right word should be kernel) are desiged to use both RAM and swap partition. Swap partition is a partition on Hard disk and is used mostly like RAM. Problem is that HDD access is always slower than RAM access and hence inherently, the system will work little slower even if you have enough RAM not to use swap. The term ”swappiness” is used to determine how the kernel should try to seam-balance between the use of RAM and swap. By default, most of the distro’s have a swappiness of 60. A higher value of swappiness means that the RAM will be swapped out faster.

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