Re: Slow package database

[Adam Borowski <kilobyte@angband.pl>]

On Fri, Mar 30, 2007 at 08:57:03PM +0200, Loïc Minier wrote:
>  Indeed it accounts for some part of the problem; after I cloned and
>  replaced my /var/lib/dpkg/info tree with the copy, the figure dropped
>  from 22 seconds to 15 seconds.

It's not that.  It's /var/lib/dpkg/available.

Try this:

for x in /var/lib/apt/lists/*Packages;do dpkg --merge-avail "$x";done
(or "dselect update")
Install+purge of an empty package:
	9-ish seconds on one box (my home desktop, years of use)
	6-ish seconds on another (a slow server)

dpkg --clear-avail
Install+purge of an empty package:
	0.182s on the slow server
	3ish seconds on the desktop

The difference between those 0.182s and 3s is due to removed and even purged
packages staying in the available file.

-- 
1KB		// Microsoft corollary to Hanlon's razor:
		//	Never attribute to stupidity what can be
		//	adequately explained by malice.