[gdal-dev] Slow GDALComputeRasterMinMax on nc grids

Joaquim Manuel Freire Luís jluis at ualg.pt
Wed Jan 8 06:41:42 PST 2020

Perfect. 6 sec now to read that file

1st thanks of 2020


-----Original Message-----
From: Even Rouault <even.rouault at spatialys.com> 
Sent: Tuesday, January 7, 2020 7:09 PM
To: gdal-dev at lists.osgeo.org
Cc: Joaquim Manuel Freire Luís <jluis at ualg.pt>; Paul Wessel <pwessel at hawaii.edu>
Subject: Re: [gdal-dev] Slow GDALComputeRasterMinMax on nc grids

On vendredi 3 janvier 2020 17:27:19 CET Joaquim Manuel Freire Luís wrote:
> Hi Even,
> New Year, new mysteries. I'm having quite strange slow times in 
> computing the min/max of netCDF files.

https://github.com/OSGeo/gdal/pull/2155 will fix such performance issues (independently of whether libnetcdf has been built with particular chunk cache


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