[KPhotoAlbum] Performance issue: KPA too slow when clickingon "big" supercategories

Lars Clausen lars at raeder.dk
Thu Dec 28 01:51:56 GMT 2006

Robert L Krawitz said:
>    From: "Jesper K. Pedersen" <blackie at blackie.dk>
>    Date: Tue, 26 Dec 2006 12:05:05 +0100
>    One of my goals is to push all this onto a worker thread, so it is
>    backgrounded. Esp md5sum calculation is tedious at when new images
>    are found.
> The time required to actually import the images isn't bad.  The
> problem is the time spent scanning for images when you're only
> importing a few.
> Importing 100 images or so only takes about a minute.  Scanning my
> filesystem for new images, with 17000 already present, currently takes
> about 100 seconds.  This is likely to scale linearly with the number
> of images already present (specifically, with the number of files in
> the image directory and all of its children).

I think I mentioned this before:  If you store for each directory involved
whether it's a leaf directory, you can skip those leaf directories that
haven't changed.  I'd wager in most setups, this would skip the majority
of old images.


More information about the Kphotoalbum mailing list