Bug report #11197

Poor (or non) performance when moving features

Added by Gary Sherman about 5 years ago. Updated about 5 years ago.

Status:Closed
Priority:Severe/Regression
Assignee:-
Category:Digitising
Affected QGIS version:2.4.0 Regression?:No
Operating System:ALL Easy fix?:No
Pull Request or Patch supplied:No Resolution:
Crashes QGIS or corrupts data:No Copied to github as #:19508

Description

QGIS 2.4 and master exhibit extremely poor performance (or total failure) when moving a moderate number of features in edit mode. I have tested with 5,000 random points:

1. load the layer (both shapefile and memory layer were tested)
2. enter edit mode
3. select a lot of features (~5,000)
4. zoom out
5. move the selected block to a new location

In my testing on Windows, Mac, and Linux, this process takes longer than I am willing to wait and in fact may never finish.
Currently I have a move attempt that is 15 minute and counting with QGIS locked up and the CPU usage at 99% (Linux, QGIS master).

To duplicate you can use the Vector->Random Points feature to create a test layer.

Associated revisions

Revision 68c49fe0
Added by Matthias Kuhn about 5 years ago

Fix performance issues with moving selection on canvas (Funded by good will)

Fix #11197

History

#1 Updated by Gary Sherman about 5 years ago

Any thoughts on this issue?

#2 Updated by Matthias Kuhn about 5 years ago

  • Status changed from Open to Closed

#3 Updated by Gary Sherman about 5 years ago

Thank you good will ;)

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