inactivity_suspender

inactivity_suspender - a quick ruby hack for suspending your home server

I use my linux system at home to be:

• a regular workstation
• a media server
• a file server

I wakeup the system by using "Wake On Lan" by using:

• Linux - "etherwake"
• Android - "Wake on Lan", https://play.google.com/store/apps/details?id=at.increase.wakeonlan
• Fritzbox automatic "Wake on Lan" feature on port connection attempt
• XMBC/OpenElec - "Advanced_Wake_On_Lan" Add-on

Therefore i do not want to automatically suspend it when a download is in progress, media i served to the local network of someone uses the fileserver. Typical linux suspend mechanisms do not care for network things.

I wrote this quick ruby hack as a workaround. (I love linux for having the possibility to write such a easy hack...)

What it does

• Check if there is some network activity beyond a specified transferrate
• Check if there is no mouse activity within a defined interval
• Check is there currently not at least a specified number of disk operations are in progress for 10 seconds

If this is all true, suspend the system.

How to use it

• Install the tool

cd /opt
git clone git@github.com:scoopex/inactivity_suspender.git

• Put the following line to /etc/rc.local and add additional arguments if necessary

/usr/bin/screen -S inactivity_suspender -d -m  bash -c '/opt/inactivity_suspender/inactivity_suspender'

• How to check whats going on

sudo bash
screen -x inactivity_suspender

TODO

• Change ops to ops/10sec to ops/sec limit