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Speed up the Gnome

Gnome menu loads the menu icons as needed causing a delay before you can see the icons.

 FIX :
 
gtk-update-icon-cache -f /usr/share/icons/THEMENAME/

 Replace the THEMENAME with the actual icon theme set you are using. The default is ‘gnome‘.

 echo gtk-menu-popup-delay = 100 >> ~/.gtkrc-2.0

 Gnome also hogs resouces my animations that are barely noticeable.
To enable these resource saving features open gconf, from terminal:
gconf-editor
from there go to:
/apps/metacity/general and check on reduced_resources
also:
/apps/panel/global and uncheck enable_animations
also:
/desktop/gnome/interface and check off the box for accessibility

 source: http://www.marksanborn.net/linux/turn-off-gnome-animations-and-hide-window-contents-while-dragging/

The other less known issues are  compcache / ramzswap and clamd.
 
Ramzswap uses physical memory as swap space thereby causing memory lock-ups. It is vestiges of the Live-CD which requires this feature when no swap space exists on the HDD. But once installed this should be removed. Unfortunately, Ubuntu does not bother to do that my default. To temporarily disable ramzswap 


sudo swapoff /dev/ramzswap

To permanently turn it off the compcache had to be dealt with. See here - http://odzangba.wordpress.com/2009/10/12/how-to-disable-compcache-and-fix-swap-errors-in-ubuntu-9-04/


Clamd runs as perpetual daemon. It could be seen by lsmod. Remove it by rmmod clamd. Clam AV is actually inteded to used on mail servers for scanning incoming mails. It is better to uninstall it locally.

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