[Digikam-users] lots of photos and startup time

[Andi Clemens]

Ok one thing that causes bad performance with ext4 is the use of barriers.
If you are running ext4 with barriers turned on, try to add the following 
mount option to the fstab:

barrier=0

sqlite performs bad with barriers, because it creates a lot of journal files 
in a short time, with barriers enabled it can kill the performance.
I usually only had issues when moving files inside of digiKam, not on startup.
But maybe this helps.

Andi

On Wednesday 08 July 2009 12:43:42 Daniel Larsson wrote:
> Yes, I am serious. I do not think that the partition is bad or the  HDD is
> about to die, non of the drives I use are older than 2 years. FS is EXT4.
> Maby you are right about the broken system but I only notice it in digiKam.
> Maby I have to reinstall the system but it wount be this week as I am
> suposed to give two lectures on digiKam this week.
>
> > From: andi.clemens at gmx.net
> > To: digikam-users at kde.org
> > Date: Wed, 8 Jul 2009 10:43:14 +0200
> > Subject: Re: [Digikam-users] lots of photos and startup time
> >
> > On Wednesday 08 July 2009 10:22:16 Daniel Larsson wrote:
> > > IMHO the 2 seconds mor or less with splash enabled is not to much to
> > > bother about.
> > >
> > > I think the real time savings can be made in read and write performance
> > > to the db.
> > >
> > > All gains in performance is welcome but in my case I want a reduction
> > > in minutes before bothering with seconds.
> > >
> > >
> > >
> > > On my Ubuntu Studio 9.04 system I have now installed their kernel
> > > 2.6.31 rc2 and start time is reduced considerably. From close to one
> > > houer to mere five minutes. Flickering has reapperd but settles fast.
> >
> > One hour? Seriously?
> > Then your system is broken, this is really not normal.
> > Even with reiserFS I had never such bad startup times.
> > Not even 5 Minutes.
> > DB access has been improved already and this is not what slows down the
> > startup so much, we don't query a lot during the application starts.
> >
> > I really would consider to try another filesystem, or run a check (with
> > badblocks if possible), maybe the partition you use is about to die?
> >
> > Andi
> >
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