[gdal-dev] tileindex performance

[Elijah Robison]

Hi Nikos,

I also have difficulty tiling large, high res images with gdal_retile.  
I would say our average process--a county-wide, 1-foot resolution 
ECW--takes about a month to run to completion.

At first, tiles are generated with blazing speed.  But by the time the 
routine has been running for about 24-hours, it slows to a crawl.  Is 
this the symptoms you are experiencing or are you running into something 
else?

I would very much love to get to the bottom of this and find a way to 
maintain the original performance throughout a tiling routine.

Best, Elijah Robison


nickos85 wrote:
> Hi,
>
> I have a mapserver and a high resolution image about 4GB when i make the
> image tiles with a size of 512x512 using gdal_retile I have better result
> instead of a tile size of 256x256. I think the problem is on how the search
> algorithm for the location of the tile can be improoved. Any suggestions?
>
> --Nikos Hatzopoulos 
>