Posts:
23
Registered:
5-Feb-2009
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Slow performance
Posted:
28 May 26, 19:02
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Hello,
following the latest (critical) update to version 39.5.11, generating an album is taking an extremely long time.
The album consists of approximately 5,400 original, unscaled PNG photos with a resolution of 1600 by 1080 pixels, and each photo is around 5 MB in size.
Before the update: less then 3 minutes.
After the update: around 30 minutes.
To be more precise: after adding a single photo and running the "make album" command, it takes about 30 minutes to generate the album.
Skin: Tiger 8.0.5
Apart from the critical update, nothing has changed in the settings or the workflow.
Any ideas?
Edited by: hmesman on 28 May 2026, 19:03
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Posts:
3,991
Registered:
4-Aug-2006
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Re: Slow performance
Posted:
28 May 26, 20:16
in response to: hmesman
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Have you done another make since the 30 minute make? If so how long did that take, with nothing added or changed?
Also, have a read of this blog post, https://jalbum.net/blog/entry/welcoming-jalbum-39-3/
In particular read the section on Profiling for max performance. If you get another long make album post the results of doing the above profiling. |
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Posts:
23
Registered:
5-Feb-2009
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Re: Slow performance
Posted:
28 May 26, 22:37
in response to: RobM
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Hi Rob,
Thanks for your quick reply.
A new "make" doesn't make any difference; the total time is still around 30 minutes.
See attached file.
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Posts:
3,991
Registered:
4-Aug-2006
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Re: Slow performance
Posted:
28 May 26, 22:47
in response to: hmesman
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It looks to me, at least, that you have a lot of metadata and texts to get processed. Doesn’t seem to be image processing. Please wait for David to respond.
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Posts:
8,358
Registered:
31-Jan-2006
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Re: Slow performance
Posted:
29 May 26, 01:21
in response to: hmesman
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It would probably also help if you could attach the project file to a post here - jalbum-settings.jap.
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Posts:
3,975
Registered:
18-Oct-2002
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Re: Slow performance
Posted:
29 May 26, 09:11
in response to: JeffTucker
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Seems metadata reading related.
What number of working threads do you have under Preferences->Advanced?
What kind of hard drive? An SSD? If not, building on an SSD makes a huge difference
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Posts:
3,991
Registered:
4-Aug-2006
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Re: Slow performance
Posted:
29 May 26, 09:38
in response to: hmesman
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Just a wild thought, have you used Lightroom/Photoshop etc. and embedded processing metadata in the images? That can cause seriously bloated metadata, with no useful information as regards the actual image, from a viewer perspective.
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Posts:
23
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5-Feb-2009
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Re: Slow performance
Posted:
29 May 26, 16:33
in response to: RobM
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Hi Rob, David and Jeff,
To make sure the issues were related to version 39.5.11, I uninstalled that version and installed 39.4.1, and the problem no longer occurs.
See the attached file.
What advice can you give?
Kind regards,
Hans
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Posts:
8,358
Registered:
31-Jan-2006
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Re: Slow performance
Posted:
29 May 26, 17:33
in response to: hmesman
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I don't see anything strange or suspicious in the project settings. I'll have to leave this one to David - he'll know what changed between 39.4 and 39.5 that might explain this dramatic slowdown.
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Posts:
3,991
Registered:
4-Aug-2006
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Re: Slow performance
Posted:
29 May 26, 20:37
in response to: JeffTucker
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The only change I can think of is the recent one that processes smaller file sizes first, not sure how that could impact metadata reading though. I would still like to know how much metadata is being read from a typical image.
Edited by: RobM on 29 May 2026, 19:38
Ah, Updated metadata extracting library from v2.15 to 2.20
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Posts:
886
Registered:
13-Apr-2006
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Re: Slow performance
Posted:
29 May 26, 21:08
in response to: RobM
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The only change I can think of is the recent one that processes smaller file sizes first, not sure how that could impact metadata reading though. I would still like to know how much metadata is being read from a typical image.
But that was only for the upload process, not for the build process. |
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Posts:
3,991
Registered:
4-Aug-2006
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Re: Slow performance
Posted:
29 May 26, 22:12
in response to: MarkusD
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The only change I can think of is the recent one that processes smaller file sizes first, not sure how that could impact metadata reading though. I would still like to know how much metadata is being read from a typical image.
But that was only for the upload process, not for the build process.
Yeah, I reread the release notes and added an edit that the other change was with the metadata reader library. Been a long strange day. |
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Posts:
8,358
Registered:
31-Jan-2006
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Re: Slow performance
Posted:
29 May 26, 22:15
in response to: RobM
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Ah, Updated metadata extracting library from v2.15 to 2.20
Yes, this one gets my vote as the most likely suspect. |
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Posts:
3,975
Registered:
18-Oct-2002
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Re: Slow performance
Posted:
30 May 26, 11:21
in response to: JeffTucker
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Thanks for sharing these insightful screen dumps! (Note: you can use copy+paste to copy these in-text. Makes it easier for all)
Comparing the 1:st line is revealing: Getting xmp data seems MUCH slower with v39.5, where we updated the metadata-extractor library.
Can you try removing the updated "lib/metadata-extractor-2.20-main.jar" file and replacing it with "lib/metadata-extractor-2.15.0.jar" from v39.4? Now see if speed picks up again. If so, it's definitively in the library itself, otherwise it's due to some interaction change with that library.
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Posts:
23
Registered:
5-Feb-2009
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Re: Slow performance
Posted:
30 May 26, 21:43
in response to: davidekholm
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O.k., I'll do that.
Give me a few days, as I'm a bit short on time.
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