[QGIS-trac] Re: [Quantum GIS] #1472: Very slow shapefile editing, CPU usage maxes out. 1.0, on Intrepid AMD64

Quantum GIS qgis at qgis.org
Fri Jan 2 22:16:22 EST 2009


#1472: Very slow shapefile editing, CPU usage maxes out. 1.0, on Intrepid AMD64
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        Reporter:  FiReSTaRT                         |         Owner:  mhugent             
            Type:  bug                               |        Status:  new                 
        Priority:  major: does not work as expected  |     Milestone:  Version 1.0.1       
       Component:  OGR Layer support                 |       Version:  1.0.0               
      Resolution:                                    |      Keywords:  shp, shapefile, edit
Platform_version:  Ubuntu Intrepid 8.10              |      Platform:  Linux               
        Must_fix:  No                                |   Status_info:  0                   
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Comment (by jef):

 Replying to [comment:7 FiReSTaRT]:
 > Jef, I'm open to suggestions on how to demonstrate the issues.. I could
 do a screenshot video of the process, but it would be too large to post
 over here.

 You didn't answer the question, if you were using the same dataset with
 0.11 and 1.0.
 Can you reproduce the problem with the dataset I posted?

 If not, please provide a working link to the data you use or the arguments
 necessary to produce a similar download at mesa.geographynetwork.com.

 > The bottom line is that commercial packages (well, at least ESRI) can
 perform the same functions on the same datasets in real time.  If Open
 Source apps are ever going to become a viable alternative, they need to be
 able to handle 1-3MB shapefiles downloaded from government sites with
 reasonable speed.

 Well, obviously there must be something different between your setups and
 mine.  I tried on my 64bit Linux box and on Windows.  Both show reasonable
 speed.  And I tried with 0.11 and didn't see a big performance difference
 - except for identify on polygons with many points, which is much quicker
 in 1.0 now, than it was on 0.11.

-- 
Ticket URL: <http://trac.osgeo.org/qgis/ticket/1472#comment:8>
Quantum GIS <http://qgis.org>
Quantum GIS is an Open Source GIS viewer/editor supporting OGR, PostGIS, and GRASS formats


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