[gdal-dev] Q: on gdalwarp of ecw file

[Jan Hartmann]

Thanks Jukka, I always wanted to learn Finnish :-). Almost as difficult 
as Dutch.

Cheers,

Jan

On 12/18/2012 01:16 PM, Jukka Rahkonen wrote:
>
> Here is a fresh table comparing resampling methods and cgi vs. fast-cgi with
> Mapserver and with raster map data.
> http://latuviitta.org/Apps4Finland-2012/documents/Taustakartta_WMS_kapasiteetti.html
>
> Titles are in Finnish but you can make it with this lexicon
> näytteitä=samples
> vasteaika=response time
> keskiarvo=mean
> kuvaa/sek=images per second (800x600 pixels)
>
> Thus you can get either 17.3 images per second or 63.7 from the same source data
> just be changing Mapserver/GDAL options. Naturally the quality is not the same
> which is another prove for considering the whole system instead of optimizing a
> single piece of it.  By the way, numbers show that "cgi slow-fast-cgi fast" is
> not the whole truth either. If there is lot of computing with bilinear or
> average resampling the difference in speed is nominal and cgi is much more
> stable - look at then maximum response time field.
>
> -Jukka-
>
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