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Monday, August 20th 2012, 1:08pm tools much slower?


Just downloaded the last tools release and it appears all tools are very much slower than the previous version.

Running on OSX Lion.

if i run previous version again it still run fast.

any idea?


Monday, August 20th 2012, 1:45pm


hmm... there were no changes that could explain a 'much slower' working...

Can you please describe your test scenario?
- 32 or 64bit version?
- size of the input image?
- installed Ram?
- free Ram when starting the tool?

Note - the krpano tools are only using the currently free available ram and when not enough
ram is available then they will start swapping memory to disk - and this is extremely slow, compared to normal working.
Maybe in your test this was the reason for the performance difference...?

Best regards,


Monday, August 20th 2012, 2:45pm

tif file is 220mb
64 bit version
10gb ram installed

i drag the tif file over makevtour droplet first in folder, takes 6,20 min to process the file.

20 seconds for the version tested just after


Monday, August 20th 2012, 3:03pm

What image type? (sphere, cubical, flat) and what pixel dimension? (or fov) does the image have?

Maybe it's the sphere/cylinder to cube conversion which makes the difference...?
The default limit settings when converting a sphere to a cube were reduced in the version (from 360x120 to 360x45).

Best regards,


Monday, August 20th 2012, 3:08pm


changing 360*45 to 360*120 the limit in config file and its fast again :)

image was spherical to cube




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Location: Portland

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Wednesday, January 30th 2013, 1:20am

Now what would make it really slow on one image 8200x4100 (15 minutes plus) and then just take seconds on the next of the same size/settings?


Wednesday, January 30th 2013, 6:16pm


found out that mac OS Lion has memory management problems.

a simple "purge" command and the job is done faster again.




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Location: Portland

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Friday, February 1st 2013, 9:44am

Thanks, I'll try that.