Let's monitor the processes. Install htop.
Code:
sudo apt-get install htop
Start htop. alt+f2, type "htop". Or write "htop" in terminal.
Press f6 (sort by). Select cpu%
When it starts to get sluggish, monitor the cpu%. Look at top of the list. Write down the text under "command". Read the cpu %.
What made my netbook get sluggish was apport. A system report tool to send info to Ubuntu. As much as I would like to contribute, it was locking up my system everytime it was running in the background.
In case it is the same for you:
Code:
sudo gedit /etc/default/apport
change the value 1 to 0
You can notice the change after rebooting or by typing in
Code:
sudo service apport stop
Information at http://askubuntu.com/questions/93457...disable-apport
edit: Just realized your not using a netbook like me. This observation is probably not what you are experiencing then.
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