id summary reporter owner description type status priority milestone component version severity resolution keywords cc 5815 E00 to SHP conversion excessively slow cowwoc warmerdam "(Migrated from http://hub.qgis.org/issues/11981) I've got an 8MB uncompressed E00 vector file. When I attempt to add it into the project, qgis-bin.exe runs for a very long time (5 minutes and counting) using only a single CPU core. I know there is a configuration option for using multicore for rendering vectors and I have enabled this, but it doesn't seem to help with whatever is blocking the load operation. I have a 2MB uncompressed E00 vector file, and this one loads fairly quickly (5 seconds) so I think something odd is going on with the 8MB file. I would expect it to take at most 4x longer to load (say 20 seconds). Having read http://marc.info/?l=gdal-dev&m=121323053222337 I used avcimport to convert the file format and tried again. The converted file opened within 10 seconds. Suggested behavior: Convert using avcimport seamlessly under the hood before attempting to convert to SHP format." defect closed normal closed_because_of_github_migration default unspecified normal wontfix