"Readahead" : how does it work ??

[Baza]

> 
> Also, considering that Warty does not have readahead, may I ask why
> Warty is blindingly quick at opening the Gnome menus (Applications,
> Computer...) after you log-in, whereas in Hoary, when you first log-in
> and click on the menus, it it takes 2 seconds of hard drive activity,
> before you showing the menu.
> Feels like Warty caches the menu at boot, and not Hoary, despite it's
> Hoary that has readahead, not Warty ! Weird.  Anyone noticed this ?
> 
> 
> Vince
> 

Yeah, I've found that. It feels like I'm running it on a slow box, though at
3.5gig it's far from slow. I know there is more, 'stuff' in Hoary, but the
Desktop performance is a bit lame at the moment.

Baza