Forum Ubuntu-it

This will grind the disk for a while then it will return you to a command prompt. The profiler is now in the background watching all actions. Now, without logging out, go to your destop login prompt (ALT+F8 ) and log in normally.

Amsicora ha scritto: Hanno disabilitato, uno su tutti, il caro vecchio [CTRL+ALT+BACKSPACE] per terminare la sessione grafica...  :-X

Configure readahead to preload files needed in your dektop environment while waiting for the username and password prompt. The more RAM you have the more you can preload. 512 is really the minimum.In /etc/readahead you can find the lists of preloaded files for the boot sequence (we have customized this in the previous step). Now we are going to create a profile of our desktop.
At the login prompt, now change vts with CTRL+ALT+F1, login and write down

sudo readahead-watch -o /etc/readahead/gnome /

This will grind the disk for a while then it will return you to a command prompt. The profiler is now in the background watching all actions. Now, without logging out, go to your destop login prompt (ALT+F8 ) and log in normally. After you are fully logged in, press CTRL+ALT+F1 to go back to your terminal, and stop the profiler with

sudo killall readahead-watch

We would have to prune the resulting list a bit as Jdong suggests: In a terminal, run:

cat /etc/readahead/gnome | xargs -i ls -lk {} | sort -rn -k +5 | less

This will display all the files readahead wants to cache, sorted by largest file first. The 5th column (before date) is the size of the file in KB. Make sure there’s nothing too large. If it’s bigger than 10,000KB or so, it’s probably not worth preloading. You can remove unwanted files from the preload list by opening /etc/readahead/gnome in your favorite editor, and deleting its line.