I was able to see the performance degradation using a standard
QmitkStdMultiwidget. 4 up layout with standard axial/sagittal/coronal and a
volume rendered view as the fourth view.
The performance difference I am seeing is how fast slice selection
scrolling/updating is working when I select new slices with the mouse pointer.
With mitk-2012.06 on my intel i7 processor, the slices update close to as fast
as I can move the mouse around. No noticeable lag in how fast the 3 slice
views are updated. The slices on the 3D volume rendered view are also updated
simultaneously.
With the git clone I pulled on Sept 12 (last merge a8a9f03 bdf114a) I was able
to see a noticeable lag in the updating of slices as I browsed through them in
a QmitkStdMultiwidget in 4 up layout mode.
Thanks for pushing a fix for the CTK issue J
Wendell Duncan
From: Sascha Zelzer [mailto:[email protected]]
Sent: Thursday, September 13, 2012 2:01 PM
To: [email protected]
Subject: Re: [mitk-users] Nightly build (Sept 11) CTK and performance issues
Hi,
Thanks for reporting this issue. The CTK version used by MITK did not compile
with Qt < 4.7.0. We have identified the issues and pushed a fixed to the MITK
master
http://mitk.org/git/?p=MITK.git;a=commit;h=7e8f3e3619a632885e3888565bf28f35dc22365d
Concerning the reported performance regression in QmitkStdMultiWidget, could
you maybe specify which user interaction is affected (srolling through slices?).
Second
issue:==========================================================
I'm noticing a SIGNIFICANTLY slower performance in the
QmitkStdMultiwidget. It seems that the only changes to the multiwidget are
changes in the SliceNavigationController apparently related to changes in the
RenderingManager. I don't know what is happening, but the latency is much
worse.
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