mapnik/mapnik — Issue #1093: Performance issue when rendering big shapefiles with latest trunk
Author: Andrey-VI
Created: 2012-02-21 13:52:09+00:00
State: open

Since February I started using Mapnik-trunk and faced with the problem of performance when rendering large polygonal shapefiles (water bodies polygons, vegetation, etc.). For example, rendering one chunk (16x16 tiles) with such shapefiles at middle zoom levels (7-11) lasts up to 5-10 minutes or even more. At the same time, rendering speed in older Mapnik-trunk versions (maybe December's versions, I don't remember) with the same shapefiles was fast.
This is a Mapnik-trunk problem or something else? Is there any ways to solve this?