Linked by Thom Holwerda on Tue 1st Dec 2009 19:03 UTC, submitted by poundsmack
Nokia has released the latest version of its cross-platform toolkit Qt, version 4.6. As usual, it comes with a whole slew of improvements and new features, and this time, they even added a new platform into the mix.
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Member since:
2006-01-06
Well, bringing up an image chip from a 4MP camera, selecting some lines and point measurements results in saturating a gigabit connection for .5s or longer bursts (~40mb/s). Doing the same thing in a fltk program I get acceptable performamce over a 1/4 T1 line internet connection (only image navigation is slow,measuring is faster). QT's problem: excessive chatting chatting between the server and client because of all the QGraphicsView stuff. Note this is a also problem with windows remote terminal.
Running vnc (or rdesktop) does help with this because all the composting is done on the server only and screen updates are transferred.
The easy answer has been to not use Qt but any number of non over engineered toolkits. Comments from customers is that the non qt stuff feels amazingly faster. And build management is much easier.