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Date: Sun, 27 Sep 2009 09:07:19 +0200
From: Patrick Lamaiziere <patfbsd@davenulle.org>
To: Christof Schulze <christof.schulze@gmx.com>
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Cc: freebsd-stable@freebsd.org
Subject: Re: various kde programs spin in a poll/read loop against their
 respective config files
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Le Sat, 26 Sep 2009 15:25:17 +0200,
Christof Schulze <christof.schulze@gmx.com> a =E9crit :

> Hello everyone,

Hi,

> the discussion in -current and the behavior of my hard disk caused me
> to investigate. Whenever kde programs are run on this system, the
> hard disk will not spin down (even when excessive timeouts for syncs
> are in effect) So I ran truss against kwallet and plasma-desktop to
> find out they do the same thing:
>=20
> stat("/home/erika/.kde4/share/apps/kwallet",{ mode=3Ddrwx------=20
> ,inode=3D56314,size=3D3,blksize=3D4096 }) =3D 0 (0x0)

> Shouldn't this be handled by fam/gamin in order to avoid this
> overhead? While it does not produce notable load it prevents my
> processor from saving power as well as spinning down the disks.

KDE with fam is broken, according to=20
http://wiki.freebsd.org/KDE4

A work-around is to change the PollInterval in kdedrc
baby-jane:~$ less .kde4/share/config/kdedrc
[$Version]
update_info=3Dkded.upd:kde3.0

[DirWatch]
PollInterval=3D60000

(IMHO, for KDE issues you should ask on the kde-freebsd@kde.org mailing
list).

See also this thread :
http://mail.kde.org/pipermail/kde-freebsd/2009-September/006447.html

Regards.