Re: [mapserver-users] mapserver / mapcache performance when reprojecting many
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 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 ___ mapserver-users mailing list mapserver-users@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] mapserver / mapcache performance when reprojecting many
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
[mapserver-users] mapserver / mapcache performance when reprojecting many images.
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
