Same here.

2011/1/26 cheer_xiao <xiaqqaix@gmail.com>

> On Wed, Jan 19, 2011 at 8:33 PM, Richard Hartmann
> <richih.mailinglist@gmail.com> wrote:
> > Hi,
> >
> > those questions might be better suited to the -users list.
> >
> >> And another small related issue: the command tab-completion of zsh
> >> doesn't seem to know aptitude build-dep, which has been around for a
> >> few years but (unfortunately) undocumented.
> >
> > I did not have time to check the first issue, but on zsh 4.3.10, you
> > can complete to aptitude build-dep. As a general rule of thumb, please
> > try to use the newest version of zsh (and starting with zsh -f where
> > applicable/possible) before reporting issues. They might have been
> > fixed, already.
>
> Thanks for your attention. I posted this to zsh-workers because I
> found it weird enough to be very likely a bug in source code. Could
> you tell me if you are having performance problem with aptitude
> tab-complete? Also, let me describe my problems in more detail.
>
> If I type "sudo apt-get install a" and hit Tab, I only get a short
> (yet noticeable) delay of about one second. But when I type "sudo
> aptitude install a" and hit Tab, zsh freezes, one of the CPU cores get
> 100% loaded. It will recover after some 10 seconds. However after
> this, the tab-completion of aptitude is as quick as apt-get's, until I
> log out of zsh.
>
> I am using the version from git repo:
>
> xiaq@~> zsh --version
> zsh 4.3.11-dev-1 (i686-pc-linux-gnu)
>
> and my system:
>
> xiaq@~> uname -a
> Linux xxx 2.6.32-28-generic #55-Ubuntu SMP Mon Jan 10 21:21:01 UTC
> 2011 i686 GNU/Linux
>
> After typing "sudo aptitude" and hitting Tab, the output is (build-dep
> is absent):
>
> xiaq@~> sudo aptitude
> autoclean                 -- erase old downloaded package files
> changelog                 -- view a package's changelog
> clean                     -- erase downloaded package files
> download                  -- download the .deb file for a package
> forbid-version            -- forbid aptitude from upgrading to a
> specific package ve
> forget-new                -- forget what packages are "new"
> full-upgrade              -- perform an upgrade, possibly installing
> and removing pa
> hold                      -- place packages on hold
> install                   -- install/upgrade packages
> markauto                  -- mark packages as having been
> automatically installed
> purge                     -- remove packages and their configuration files
> reinstall                 -- download and (possibly) reinstall a
> currently installed
> remove                    -- remove packages
> safe-upgrade              -- perform a safe upgrade
> search                    -- search for a package by name and/or expression
> show                      -- display detailed information about a package
> unhold                    -- cancel a hold command for a package
> unmarkauto                -- mark packages as having been manually
> installed
> update                    -- download lists of new/upgradable packages
> why                       -- show the manually installed packages that
> require a pac
> why-not                   -- show the manually installed packages that
> lead to a con
>