Mark See: https://mapserver.org/input/raster.html#raster-display-performance-tips In summary use internally tiled geotiffs with overviews using gdaladdo in the projection you'd like to publish from mapserver
On Mon, 13 Jul 2020 at 17:14, Mark Volz <markv...@co.lyon.mn.us> wrote: > Hi, > > > > I was able to increase the performance of my reprojected service by > resampling the raster. If anyone else has any tips please let me know. > > > > Thank You > > Sincerely, > > *Mark Volz, GISP* > > > > Hello, > > I created a Mapserver / Mapcache service that uses a tile index with about > 1,000 jpg file. When I use my counties native projection the service is > quite fast especially when compared to using MrSID mosaics. However, when > I reproject my imagery to EPSG: 3857 the service much slower than my older > MrSID service. I presume this may have something to do with Mapserver > needing to load and reporject all the tiles. > > > > Please let me know if you have any tips that could help speed up the > service. Here are a couple things I thought of: > > > > * Just use MrSID mosaics which will provide mediocre performance > in the source projection, but may be faster when reprojecting. > > > > * Convert the data into a geotiff format which will take time. > > > > * Use MrSID files at smaller scales, and Jpeg tiles at larger > scales. This should give us acceptable speed, but we will need to store > more data. > > > > * Something else. > > > > Thank You! > > > > Sincerely, > > Mark Volz, GISP > > > _______________________________________________ > mapserver-users mailing list > mapserver-users@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/mapserver-users
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