Note: This is a fork of gatotray

To see the major differences from the original, take a look at:

https://github.com/kafene/gatotray/compare/2844dc5...1ea5740?w=1

Version 3.0 is now at BitBucket from the original maintainer, gatopeich (see issue #3)

gatotray is a tiny CPU monitor displaying several stats graphically (usage, temperature, frequency) in small space, and tight on resources.

(c) 2011 by gatopeich, licensed under a Creative Commons Attribution 3.0 Unported License:
http://creativecommons.org/licenses/by/3.0/
Briefly: Use it however suits you better and just give me due credit.

• Goals: usability, lightness, looks, compatibility.
• Designed to run continuously and give a good idea of the CPU's status in a glimpse.
• Works in almost any Linux desktop, as long as it is Freedesktop compatible: XFCE, GNOME, GTK+, KDE, LXDE, WM + Tint2, Razor-qt, and more.
• It uses an innovative logarithmic time scale, providing an intuitive idea of CPU usage in reduced space. It looks good too. Colors vary with frequency and temperature.
• When available, temperature is represented in a thermometer, which blinks when too hot.
• Tooltip shows current stats in text form.
• On click, it opens a 'top' window with detailed system usage.
• Preferences dialog allows customization of colors and options.
• Transparent background for better integration.

gatotray aims to be a reliable and lightweight application, suitable for usage in the most resource constrained systems. Here are some measures comparing different versions running on:

• A Core 2 Duo U9400 @ 800 MHz (max=1.4GHz) reporting 2793 bogomips.
• GTK+ version 2.20.1(-0ubuntu2) (indirect dependencies vary with distro)

After 7 hours this is a pretty version of what we get with the command
ps -o bsdtime,rss,etime,pid,command -C gatotray|sort -n.

CPU%  CPUtime    RSS  ElapsedTime  Version and options:
0.17     0:02   6772        19:15  gatotray v1.10 64 bits opaque 21x21
0.17     0:45   6984     07:11:57  gatotray v2.0 64 bits opaque 21x21
0.19     0:48   7464     07:11:14  gatotray v2.0 64 bits transparent 21x21
0.19     0:49   6176     07:10:13  gatotray v2.0 32 bits opaque 21x21
0.21     0:54   6560     07:09:48  gatotray v2.0 32 bits transparent 21x21

So gatotray v2.0 eats roughly less than 6 bogomips in its several configurations, transparency costing ~10% additional CPU, and running the 32 bit version saving a bit under 1kB RSS memory.

Script "watchRSS" used to track memory and CPU usage in a simple way follows:

#!/bin/bash
$* &
pid=$!
while watch="`ps -o bsdtime $pid` `grep RSS /proc/$pid/status`"; do
	[ "$watch" != "$old" ] && echo `ps -o etime $pid` CPU$watch
	old="$watch"
	sleep .1
done