[QGIS-trac] Re: [Quantum GIS] #1978: QGIS take ages to open big shapefiles

[Quantum GIS]

#1978: QGIS take ages to open big shapefiles
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        Reporter:  lutra                                      |         Owner:  nobody       
            Type:  bug                                        |        Status:  new          
        Priority:  critical: causes crash or data corruption  |     Milestone:  Version 1.4.0
       Component:  Data Provider                              |       Version:  HEAD         
      Resolution:                                             |      Keywords:               
Platform_version:                                             |      Platform:  All          
        Must_fix:  No                                         |   Status_info:  0            
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Comment (by lutra):

 It seems that with the fix for #2270 there was an improvement in the
 rendering performances of the big shapefile linked in this ticket (650mb
 of size). Still slow but now it is at least usable.

 I still see serious speed issues using (for example) the identify/select
 feature tools, but zooming seems improved.

 I especially noticed that if the identify tool results window is docked,
 then just selecting the identify tool make the canvas to be refreshed,
 hurting the user experience.

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/1978#comment:5>
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