viewer reads ENTIRE folder in background -> SLOW ! (1.91.

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hi

sorry if this has been asked before,
but i searched for keywords:
slow, large folder, freezing, ...
without finding a solution here

furthermore, idont know if/claim that
the behaviour described beneath is a bug,
i just havent found a setting/param to fix it...

Use case:
-------------------
- igot a local folder with about 170 jpg images,
- yes, only 170 files, ONLY unharmed jpg files, each 1024x819, with no exif info
- double clicking a single image opens viewer of xnview immediately
- the selected image is displayed quite fast ....

Problem A:
-------------------
- ... buuuuuut: then, shortly after, my cpu gets 100% load -> xnview.exe munching most of the cpu time
- xnview is not responding (=completely blocked) for about 3 minutes (180s !!!)
- (note: the time of the lag/freezing/blocking depends on the size of the folder/number of images!)
- then, after ~3min, cpu load is back to normal, xnview is responding normally/quickly again
- even browsing (=xnview browser) through the current (=LARGE) folders is (now) rather "fast" and responsive

Problem B:
-------------------
- if "ReadAhead=0" is set instead of "ReadAhead=1" in xnview.ini problem does NOT occur ...
=> viewer opens immediately with xnview NOT eating up all my cpu time
- ... buuuuuuut: as soon as i hit "PageUp", "PageDown", "Pos1" or "End"...
- Voila, "Problem A" (see above) shows its ugly face again

Question:
-------------------
1) what is the so called 'viewer' doing on the background ???
it's called a "viewer", it should just read in a single or maybe 3 images (prev,current,next)
instead it OBVIOUSLY is reading in the COMPLETE content of the current folder !!!
2) is this is a bug, or something that can be disabled via parameters ?


System
-------------------
- my pc is rather outdated pIII, 1GHz, single core :)
- still harddisks are rather new/fast (2 x samsung 250GB sata)
- winxp pro sp2
- xnview 1.91.4

thx in advance


bottom

[bottom]

...ok, i found someone (=a post) with same problem:
http://newsgroup.xnview.com/viewtopic.php?t=3499

[xnview]

Problem B:
-------------------
- if "ReadAhead=0" is set instead of "ReadAhead=1" in xnview.ini problem does NOT occur ...
=> viewer opens immediately with xnview NOT eating up all my cpu time
- ... buuuuuuut: as soon as i hit "PageUp", "PageDown", "Pos1" or "End"...
- Voila, "Problem A" (see above) shows its ugly face again

Strange, the problem was in 1.91.3, and fixed in 1.91.4.
Could you send me an email, please?

[bottom]

...email or pm ?

do You need an ini ?

i'm using the zip-file version(s) of xnview,
about dialog showed 1.91.4,

can't tell You the date showing behind the version number right now
as i'm currently at work ... no xnview here :(

thx

[xnview]

...email or pm ?

do You need an ini ?

i'm using the zip-file version(s) of xnview,
about dialog showed 1.91.4,

can't tell You the date showing behind the version number right now
as i'm currently at work ... no xnview here

thx

A PM with your email to send you a test version. And could you send your .ini too