[Qt-interest] QT/Windows 7 problem: Xml and QDomDocument class extremely slow

[Thiago Macieira]

Em Quinta-feira 10 Dezembro 2009, às 09:55:51, Roland Tollenaar escreveu:
> Hi,
> 
> Perhaps this problem has already been reported but we are experiencing
> extreme slowness on windows 7 machines whenever the xml class of QT is
> used. What feels instantaneous under XP can take up to 10 seconds or
> longer on a Windows 7 machine. Even when running in so called "XP mode".
> 
> This is a severe problem for us, is this known and is there a solution
> to this problem?
> 
> We are working with Qt 4.5.2

The QDom* classes are known to be slow. There will be no optimisation done on 
them.

Please use QXmlStreamReader and QXmlStreamWriter if you need performance in 
parsing and writing XML.

-- 
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
  Senior Product Manager - Nokia, Qt Development Frameworks
      PGP/GPG: 0x6EF45358; fingerprint:
      E067 918B B660 DBD1 105C  966C 33F5 F005 6EF4 5358
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 190 bytes
Desc: This is a digitally signed message part.
Url : http://lists.qt-project.org/pipermail/qt-interest-old/attachments/20091210/7649362f/attachment.bin