[Qgis-developer] map rendering time much longer on windows than on ubuntu

[Alister Hood]

In the case that debug symbols are affecting speed, should setting this as an environment variable help?:
QGIS_DEBUG=-1

> Date: Tue, 09 Jul 2013 14:53:06 +0200
> From: Matthias Kuhn <matthias.kuhn at gmx.ch>
> To: Denis Rouzaud <denis.rouzaud at gmail.com>
> Cc: qgis-dev <qgis-developer at lists.osgeo.org>
> Subject: Re: [Qgis-developer] map rendering time much longer on
> 	windows than on ubuntu
> Message-ID: <51DC07B2.6030903 at gmx.ch>
> Content-Type: text/plain; charset=UTF-8
> 
> Apart from a dozen things influencing the rendering speed on a particular
> machine mostly related to the datasource (e.g. network/disk speed...), the
> binary itself can also be optimized by not including the debug symbols.
> 
> But to be accurate, one would need to do a more in-depth profiling of the
> problem...
> 
> -- Matthias
> 
> On Die 09 Jul 2013 14:38:24 CEST, Denis Rouzaud wrote:
> > Hi all,
> >
> > I noticed that QGIS renders much slower on windows than on ubuntu.
> >
> > This is the configuration:
> > Windows 7 64 bits
> > QGIS master from Osgeo4W
> > vs
> > Ubuntu 12.04 64its
> > QGIS compiled on computer
> >
> > The windows computer is more recent and powerful than ubuntu's one.
> > I have mainly PostGIS layers.
> >
> > Is it a know issue/problem/feature whatever?
> > Is there something I can do to speed up????
> >
> > Thanks a lot,
> >
> > Denis