Black areas when loading RAW files from slow disks

[GoogleCodeExporter]

First of all, if you have any Haxies, InputManagers, SIMBL plugins or
similar operating system hacks installed, please remove them first, restart
the program, and make sure the bug is reproducible without them.

What steps will reproduce the problem?
1. Open in Xee folder with photos (usually RAW files), which is located on slow 
disk (i.e. USB HDD, or network drive)
2. Leaf through photos in this folder (i.e. with cmd+arrow)
3.

What is the expected output? What do you see instead?
Xee slowly loads next file, after few seconds it shows partially loaded file. 
It is shown each time differently, not from the beginning (top  row of pixels) 
of the file. Each time shape of black area is different.

What version of the product are you using? On what operating system?
Version 3.3 (32) on MacOS X 10.9.4

Please provide any additional information below.
Often occurs with Canon RAW files CR2, jpegs seem to be working ok in most 
time. Average file size is 25M.
It seems to be Xee has some timeout to load file from disk, and when it's 
reached it displays just the part it had time to load.

Original issue reported on code.google.com by phx.plan...@gmail.com on 16 Jul 2014 at 5:45

Attachments:

• screen1.tiff

[GoogleCodeExporter]

What Mac are you running this on?

Original comment by paracel...@gmail.com on 16 Jul 2014 at 5:58

[GoogleCodeExporter]

Macbook Air mid2011, with Transcend USB HDD. According to my tests, average 
sequential write speed is about 25 M/s, seems to be adequate for general use.

Original comment by phx.plan...@gmail.com on 17 Jul 2014 at 10:11

[GoogleCodeExporter]

I have the same problem with my Macbook Pro mid 2013 with SSD that I can't call 
slow. When I browsing DNG files (average size 17 MB), more than half of them is 
shown with black areas. And CPU has borrowed on 100%.

Original comment by vporos...@gmail.com on 27 Jan 2015 at 9:43

Attachments:

• DiskSpeedTest.png