Bug#330366: #330366: kded activity disrupts video grabbing despite realtime sched

[Guillem Jover <guillem@debian.org>]

Hi,

On Tue, Sep 27, 2005 at 08:40:39PM +0200, Andreas Mohr wrote:
> Package: kdelibs-bin
> Version: 4:3.4.2-3

> I've been having huge trouble doing frame grabbing from my video camera via
> firewire recently. Every ~ 20 seconds a frame got dropped.
> And this all despite running a -ck kernel with dvgrab running in SCHED_ISO,
> which should normally avoid any and all frame drops quite easily.

I've found abnormal disk activity, even when the box was supposedly
not doing anything. I've a kernel built with:

  CONFIG_PREEMPT=y
  CONFIG_PREEMPT_BKL=y

> Is there a way to improve kded to have less activity within one burst?

Can you check if stopping the KDED Media Manager in:

  Control Center -> KDE Components -> Service Manager

makes any difference (it made for me)? It may help narrow down where
the problem comes from, and if your issue is similar to mine.

regards,
guillem