Is it leaking or caching?

[cuipengfei@thinkgeo.com]

I found out that our app takes a lot of memory when there is a mrsid file loaded, at first I thought there is something wrong in our app, but then I found the same problem in the GeoViewer.
So I guess the SDK uses cache by default, right?
And is there a way to turn that off?

[ChrisH]

GeoViewer does do some memory caching (on the order of numLevels * areaOfViewRect) however, the library that manages this is not shipped with the SDK.

The SDK does not do any memory caching. You would have to set that up yourself in your app. How much memory usage are you seeing? How large is the image you are loading into your app?

[cuipengfei@thinkgeo.com]

Oh, this does not sound good......

The mrsid file is about 600MB, and the memory usage goes up as I pan or zoom in/out the map. I did not test it for too long, but it takes up to 500MB of memory after 10 minutes.

[ChrisH]

try loading the same file into one of the sample viewers that shipped with the DSDK (in the "examples\src" folder). Does the same thing happen there?

Also, what is the width & height of your image?

[cuipengfei@thinkgeo.com]

nope, both the MFC viewer and Win Forms viewer works fine.
I guess the bug is probably in our wrapper.
Thanks for all the help.