[Bug 300293] New: when starting digiKam, it takes about 5 minutes

[Axel Krebs]

https://bugs.kde.org/show_bug.cgi?id=300293

            Bug ID: 300293
          Severity: normal
           Version: 2.5.0
          Priority: NOR
          Assignee: [hidden email]
           Summary: when starting digiKam, it takes about 5 minutes
    Classification: Unclassified
                OS: Linux
          Reporter: [hidden email]
          Hardware: Ubuntu Packages
            Status: UNCONFIRMED
         Component: general
           Product: digikam

when starting digiKam, it takes very long times.
checking "system monitor", it appears that only one (of four) cores are active.

Reproducible: Always

Steps to Reproduce:
1. just start digiKam
2. and wait
3. and wait
4. and wait...


Expected Results:  
didgiKam should speed up, use all available cores (if possible)

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[Axel Krebs]

https://bugs.kde.org/show_bug.cgi?id=300293

--- Comment #1 from Axel Krebs <[hidden email]> ---
Created attachment 71210
  --> https://bugs.kde.org/attachment.cgi?id=71210&action=edit
starting up phase (a)

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[Axel Krebs]

https://bugs.kde.org/show_bug.cgi?id=300293

--- Comment #2 from Axel Krebs <[hidden email]> ---
digiKam version 2.5.0
Bilder:
BMP: 1
GIF: 100
JP2: 16
JPEG: 28
JPG: 107777
NIKON-NEF: 27
PGF: 2
PNG: 1344
RAW-CR2: 632
RAW-CRW: 15778
RAW-DNG: 6
RAW-NEF: 61961
TIFF: 1561
XCF: 1
Gesamt: 189234
:
:
Videos:
AVI: 73
MOV: 16
MPEG: 2
Gesamt: 91
:
:
Gesamtzahl der Einträge: 189325
Alben: 2616
Stichwörter: 79
Datenbanktreiber: QSQLITE

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[Andi Clemens]

https://bugs.kde.org/show_bug.cgi?id=300293

--- Comment #3 from Andi Clemens <[hidden email]> ---
I can confirm this, digiKam is not usable with bigger image collections.
I created a little test program for generating small images (attached to this
bugreport).
When I create the test images and start digiKam (say 100.000 images, 1000
images in each folder), digiKam seems to take more than 8 hours to scan all the
images (I stopped at 20% after 2 hours).
The UI is visible, the "scan collection task" is running, but it is so damn
slow.
I commented out the slow code (ImageScanner::scanFromIdenticalFile() always
returning true) and digiKam was ready after 3 minutes, but I needed to kill the
process because it wasted more than 2.5 GB RAM! I don't know what happened but
after the scan finished, it started to increase memory usage like crazy.

We seem to have big issues with bigger image databases here... btw. I was using
the SQLITE backend.

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[Andi Clemens]

https://bugs.kde.org/show_bug.cgi?id=300293

--- Comment #4 from Andi Clemens <[hidden email]> ---
Created attachment 71217
  --> https://bugs.kde.org/attachment.cgi?id=71217&action=edit
manyImages  - create many images in multiple folders

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[Andi Clemens]

https://bugs.kde.org/show_bug.cgi?id=300293

Andi Clemens <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

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[Andi Clemens]

https://bugs.kde.org/show_bug.cgi?id=300293

--- Comment #5 from Andi Clemens <[hidden email]> ---
I just deleted all these images again, now digiKam is starting and "searching
for deleted albums".
The problem is I can not cancel this action. I guess now I really have to wait
for 8 hours, because it wants to check all of the 100.000 images one by one...

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=300293

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[hidden email]
          Component|general                     |Database

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=300293

--- Comment #6 from Gilles Caulier <[hidden email]> ---
Andi,

Do you use 2.6.0 RC ? Because i cannot reproduce it here...

Gilles

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[Andi Clemens]

Yes I do

2012/5/19 Gilles Caulier <[hidden email]>:

> https://bugs.kde.org/show_bug.cgi?id=300293
>
> --- Comment #6 from Gilles Caulier <[hidden email]> ---
> Andi,
>
> Do you use 2.6.0 RC ? Because i cannot reproduce it here...
>
> Gilles
>
> --
> You are receiving this mail because:
> You are the assignee for the bug.
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[Andi Clemens]

https://bugs.kde.org/show_bug.cgi?id=300293

--- Comment #7 from Andi Clemens <[hidden email]> ---
Yes I do

2012/5/19 Gilles Caulier <[hidden email]>:

> https://bugs.kde.org/show_bug.cgi?id=300293
>
> --- Comment #6 from Gilles Caulier <[hidden email]> ---
> Andi,
>
> Do you use 2.6.0 RC ? Because i cannot reproduce it here...
>
> Gilles
>
> --
> You are receiving this mail because:
> You are the assignee for the bug.
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> [hidden email]
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[Pierre Hanser]

https://bugs.kde.org/show_bug.cgi?id=300293

Pierre Hanser <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[hidden email]

--- Comment #8 from Pierre Hanser <[hidden email]> ---
may be totally out of subject:
recursive search for color profile may lengthen the startup of digikam

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[Axel Krebs]

https://bugs.kde.org/show_bug.cgi?id=300293

--- Comment #9 from Axel Krebs <[hidden email]> ---
(In reply to comment #7)

> Yes I do
>
> 2012/5/19 Gilles Caulier <[hidden email]>:
> > https://bugs.kde.org/show_bug.cgi?id=300293
> >
> > --- Comment #6 from Gilles Caulier <[hidden email]> ---
> > Andi,
> >
> > Do you use 2.6.0 RC ? Because i cannot reproduce it here...
> >
> > Gilles
> >
> > --
> > You are receiving this mail because:
> > You are the assignee for the bug.
> > _______________________________________________
> > Digikam-devel mailing list
> > [hidden email]
> > https://mail.kde.org/mailman/listinfo/digikam-devel

Hi Gilles:

What means "here"? > "=under 2.6 RC?"

When repeating "building thumbnails", "search" (instead of building _all_
thumbnails again), it take again 10:12:06 [hh:mm:ss].

Question: is this related to your considetion on separating into severl files
<http://dot.kde.org/2012/02/22/digikam-team-meets-genoa-italy>, second
paragraph?

Without knowing interal details of digiKam, I would try building a listing of
pic types and _not_ check every pic file individually. instead, I would consign
the spoecoific metadata of each pic file type.

I guess, it is quicker to check listsings than prooving files 180000 times...

Hope I am not to far away... ;-) !

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=300293

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|when starting digiKam, it   |SCAN : when starting
                   |takes about 5 minutes       |digiKam, it takes about 5
                   |                            |minutes

--- Comment #10 from Gilles Caulier <[hidden email]> ---
Axel,

What's new about this file using last digiKAm 4.2.0 ?

Gilles Caulier

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=300293

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|CONFIRMED                   |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #11 from Gilles Caulier <[hidden email]> ---


*** This bug has been marked as a duplicate of bug 281959 ***

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[bugzilla_noreply]

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[hidden email] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Database                    |Database-Scan

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