[gdal-dev] Resquest for comments (RFC 36)

[Brian Case]

Ivan

Makes me wonder what kind of performance gain you could see with
mapserver on a layer with a large number of images to open.

Seems to me that a tileindex would be a good application of this.

Brian




On Mon, 2011-10-03 at 19:02 -0500, Ivan Lucena wrote:
> Hi All,
> 
> RFC 36: http://trac.osgeo.org/gdal/wiki/rfc36_open_by_drivername
> 
> The goal of RFC 36 is to save processing time by telling GDALOpen what driver to use, avoiding the driver-probing mechanism (Where all drivers are asked to checked if they recognize the file).
> 
> It works by adding the driver name before the file-name as in GDALOpen("hfa:example_file.img").
> 
> *It is optional*. It does not invalidate the current simple filename entry that most of the drivers use nor the more complex "filename" string formats used by a few drivers (with things like server-name, port-number, table-name).
> 
> It is intended to speed up applications or scripts that need to process a large number of datasets when it already knows what driver to use.
> 
> Command line use should not be affect considerably in terms of speed but it adds the option to avoid the wrong driver from taking precedence from the intended one (#3043), ex.:
> 
> $ gdalinfo ntif:/autotest/gdrivers/data/rgb.ntf"
> 
> If you want to try it, a patch that implements this proposed change is available on ticket 3043 http://trac.osgeo.org/gdal/ticket/3043
> 
> Please take a look and send us your comments.
> 
> Regards,
> 
> Ivan
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