[Qgis-user] low CPU on python plugin computation

[Alain Gauthier]

Hello,
I am migrating a python plugin from QGIS 1.8 to QGIS 2.2.
My work is now with QGIS 2.2 Valmeira on windows 7 (32 bit version of QGIS).

When I Launch a computation with my plugin, it runs very slowly 
regarding to the same one on QGIS 1.8, on the same computer.

Having a look at the task manager, QGIS process takes only less than 2 % 
of CPU usage.

The computation which takes time (but almost no CPU !) is a filter 
through features geometry using "shapely" module.
I also check that there was no disk usage for that computation.

Does someone has an idea about the reason of so low cpu usage ?
Anyone already met that kind of problem ?

Many thanks

-- 
Alain Gauthier
Eaucéa
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72 rue Riquet
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Tel : 05.61.62.50.68
Fax : 09.70.63.32.94
E-mail :alain.gauthier at eaucea.fr