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Limit while generating thumbnails from folder with > 10,000 pictures?

Posted: Wed May 23, 2018 7:35 am
by xxnner
Hello,
there is a problem while generating thumbnails / preview pictures in XnView (v2.44 licensed):
If target folder contains many files (approximately > 10,000 .TIF in a faxin folder), generating thumbnails stops after some time and XnView freezes. Terminating of XnView process by taskmanager is necessary :( Other folders with less files are processed without problems, thumbnails are generated. Issue has been evaluated on different Windows machines.

So, is there a (numeral) limit for generating thumbnails in one folder, and how to bypass this limit?

Thx and regards!

Re: Limit while generating thumbnails from folder with > 10,000 pictures?

Posted: Wed May 23, 2018 1:46 pm
by xnview
yes, all thumbnails are loaded in memory, so you are limited by around 2.5Gb

Re: Limit while generating thumbnails from folder with > 10,000 pictures?

Posted: Wed May 23, 2018 6:50 pm
by xxnner
Good evening,
I did check: the ~10.000 .TIF files require about 1 Gb space on hdd, and there are 64bit Windows systems used with 32 Gb and 64 Gb memory, much enough, isn't it?
So, why is XNview freezing while creating thumbnails/ previews from this directory?
Thx once more + regards

Re: Limit while generating thumbnails from folder with > 10,000 pictures?

Posted: Wed May 23, 2018 7:12 pm
by cday
xnview wrote: Wed May 23, 2018 1:46 pm yes, all thumbnails are loaded in memory, so you are limited by around 2.5Gb
xxnner wrote:
I did check: the ~10,000 .TIF files require about 1 Gb space on hdd, and there are 64bit Windows systems used with 32 Gb and 64 Gb memory, much enough, isn't it?

So, why is XnView freezing while creating thumbnails/ previews from this directory?
The problem I believe is that XnView Classic is 32-bit software, and the thumbnail limit is set by the amount of ram that can be addressed...

You could possibly try XnView MP 64-bit which as 64-bit software can address much more ram, or you might be able to load more thumbnails if you are able to reduce the thumbnail pixel dimensions, I'm not sure.

Re: Limit while generating thumbnails from folder with > 10,000 pictures?

Posted: Mon Jun 04, 2018 11:26 am
by xxnner
cday wrote: Wed May 23, 2018 7:12 pm You could possibly try XnView MP 64-bit which as 64-bit software can address much more ram, or you might be able to load more thumbnails if you are able to reduce the thumbnail pixel dimensions, I'm not sure.
Ok, i did give XnViewMP 64-bit v0.9 a try and it works... :D
About 20.000 .TIF files in one (!) directory had been converted to thumbnails/ preview, no freezing.
For .PDF preview a 64bit version of ghostscript is needed.

XNviewMP superseeds 'XNview classic'?

Is there any regression in features/ functions?

Thx + best regards.

Re: Limit while generating thumbnails from folder with > 10,000 pictures?

Posted: Mon Jun 04, 2018 12:42 pm
by cday
xxnner wrote: Mon Jun 04, 2018 11:26 am For .PDF preview a 64bit version of Ghostscript is needed.
Yes, 64-bit software normally requires 64-bit add-ons and plug-ins.

XnView MP supersedes 'XnView Classic'?

Is there any regression in features/ functions?
XnView MP, being cross-platform with Unicode support and a new modern interface with enhanced browser functions, and also available as 64-bit software which was relevant for you, is seen as the future... :D

Although the function set is now almost complete, there are some detailed interface changes; overall probably best to have both versions installed for now, and see how you get on with 'MP.