Hi Karl, I don't think that the order of the tiles should make a big difference. It is quite normal that some tiles take longer than others, but 30 minutes is far too long. One well known reason for slow processing are very complex multipolygons like Lake Huron. Another might be huge areas of sea. So, to find out if the order or the content is causing the delay you can process the tiles in a different order. I often use VisualVM to monitor a running mkgmap, it helps to find out which routines are called most often. If you identify a single tile that takes very long (also with the default style) you can upload that tile to http://files.mkgmap.org.uk/ Best is to add a small file with the options that were used, but you can also post them here. Hope that helps.
Gerd ________________________________________ Von: mkgmap-dev <[email protected]> im Auftrag von 7770 <[email protected]> Gesendet: Montag, 8. März 2021 06:53 An: [email protected] Betreff: [mkgmap-dev] tile takes very long time to generate Hi. I observe a situation that one of the very first tiles (often the first or the third) that mkgmap generates takes 20 - 30 minutes to generate, wheres the others take about 30 seconds each. The map data produced by splitter is a total of around 700 files with splitter option --max-nodes=1275000. sea and bouds are used for mkgmap. At first i thought i am running low on memory but changing to max-jobs=1 (instead of the possible max of 2) did not make any change. Is mkgmap doing something specific in the beginning that can explain this long time generating one of the very first tiles? I can provide more details, let me know how i can best collect those details in case i need to set some parameters to have mkgmap to say more about what it is doing. Regards Karl _______________________________________________ mkgmap-dev mailing list [email protected] http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev _______________________________________________ mkgmap-dev mailing list [email protected] http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
