[Digikam-users] Write Metadata takes long time

[Andi Clemens]

The "20times slower" is only true for my hardware of course, no general 
assumption... :-)


On Monday 22 February 2010 20:47:40 Andi Clemens wrote:
> What filesystem are you using? All barrier-enabled filesystems will be slow
> as hell with sqlite3 or in general heavy disk usage.
> 
> Filesystems that will be 20times slower for example are:
> EXT4 (barriers on)
> XFS (barriers on)
> 
> If you are using one of the above FS, try disabling barriers:
> 
> EXT4:
> mount -o defaults,rw,barrier=0,async,noatime,nodiratime
> 
> XFS:
> mount -o defaults,rw,nobarrier,async,noatime,nodiratime,logbufs=8
> 
> Andi
> 
> On Friday 19 February 2010 14:20:10 Juergen wrote:
> > Hallo.
> > 
> > I have the problem that it takes a long time for digikam to write
> > metadate into files.
> > 
> > Technical details are :
> > 
> > Suse 11.0
> > 
> > AMD : Linux linux-4qg7 2.6.25.20-0.6-default #1 SMP 2010-01-14 18:58:36
> > +0100 x86_64 x86_64 x86_64 GNU/Linux
> > 
> > KDE 3.5.9 "release 49.2"
> > 
> > Digikam : V 1.1.0 with KDE Version 4.4.0 release 224
> > 
> > So, back to my problem.
> > 
> > Downloading images from my kardreader takes much longer than it did in
> > previous versions. But, I can not tell you exact how long that is.
> > 
> > But, what makes the current version useless for me is that it takes so
> > long to write tags into my image files.
> > 
> > It almost an hour to write just one Tag : Special->Original to 111
> > images.
> > 
> > The images are JPG images taken with my "Nikon D90" and they are about 3
> > - 6 MB big.
> > 
> > For 12 Images to get one new tag added it took 3,44 minutes.
> > 
> > My settings regarding metadata are :
> > 
> > Rotate preview images according exif information
> > Set exif information to normal after rotation
> > Save image tags as "Keywords" tags embedded in metadata in files
> > Save image captions in metadata in files
> > Save image timestamp in metadata in files.
> 
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