[Digikam-users] Write Metadata takes long time

[Andi Clemens]

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.