Loading big images in thumbnail-view takes very long

[therealmarv]

When I switch to thumbnail mode, viewing a list (e.g. 100) of image files (JPG, 1MB+) takes extremely long.

The Windows Explorer is very fast compared to Total Commander and shows the image list very fast.

My suggestions:
- Load the list of visible thumbnails in random order. The Windows Explorer does the same (Windows 7). I can get a better impression of what content the image folder is.
- The Thumbnail viewer should load small images when possible. Many JPG-Loaders offer this low quality mode which is ok for thumbnails. Sometimes there are also tiny thumbnail pictures embedded in JPGs which speeds up loading.

[fenix_productions]

2therealmarv
What is your System configuration? What do you use for thumbnails generation? Explorer method only or IrfanView or some plugin?

I have hundreds of 2-10MB JPG files and no "extremely long" situations happen. With thumbnails caching ON, only first folder load takes little longer time but it is still similar to what Explorer does.

I am using Imagine plugin on my AMD 3800+ (2.01GHz) processor with 2GB RAM.

Thumbnails config:

Code: Select all

[Configuration]
PreloadThumbnails=3
ThumbExplTypes=*.* | *.htm *.html *.reg *.mng *.pdf *.ico
ThumbHeightNoCache=128
ThumbIrfXnTypes=*.* | *.reg
ThumbOptions=15
ThumbPlgTypes=*.* | *.psp *.rtf *.reg *.mng *.flv *.icns
ThumbTxtTypes=*.txt *.ini *.csv *.reg *.diz
ThumbWidthNoCache=128
ThumbsCopyDel=1
ThumbsCustomField=[=tc.size.bkMG2]
ThumbsCustomFieldsEnabled=1
ThumbsInDlg=1

[therealmarv]

I'm using the explorer method only. Not using any plugin for displaying thumbnails.

[therealmarv]

ok. Now I know why it is sooo slow.

My tcthumbs.idb (thumbnail cache file) is about 500MB big. Seems that thumbnail creation is getting really really slow when the cache becomes too big.

[Samuel]

There should be much potential to improve the thumbnail generation speed. Christian could you please look into it?
Was mentioned several times now.

[ghisler(Author)]

With today's fast computers (dual core or more), you may want to just turn off the cache if you have so many images. I tried with databases, but they really eat a lot of memory.