Results 1 to 11 of 11

Thread: QTreeView performance slowdown...

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. 4th December 2008, 16:06 #1
    jpujolf
    jpujolf is offline Intermediate user
    Join Date
    Jul 2006
    Location
    Catalunya - Spain
    Posts
    117
    Thanks
    16
    Thanked 8 Times in 8 Posts
    Qt products
    Qt4
    Platforms
    Unix/X11 Windows

    Default Re: QTreeView performance slowdown...

    Quote Originally Posted by wysota View Post
    You have to profile not your code but Qt, thus using your own classes for it won't work. Use callgrind, gprof or a similar tool.
    I'm working on this. I'll tell you the result, if I can finally find the origin of the problem.
    Reply With Quote Reply With Quote
  2. 4th December 2008, 16:08 #2
    wysota's Avatar
    wysota
    wysota is offline The "Q"
    Nokia Certified Qt Developer
    Join Date
    Jan 2006
    Location
    Warsaw, Poland
    Posts
    33,372
    Thanks
    3
    Thanked 5,019 Times in 4,795 Posts
    Qt products
    Qt3 Qt4 Qt5 Qt/Embedded
    Platforms
    Unix/X11 Windows Android Maemo/MeeGo
    Wiki edits
    10

    Default Re: QTreeView performance slowdown...

    I'm sure the reason will become obvious once you run the profiler.
    Reply With Quote Reply With Quote
  3. 5th December 2008, 01:58 #3
    calmspeaker
    calmspeaker is offline Intermediate user
    Join Date
    Aug 2008
    Location
    Nanjing, China
    Posts
    66
    Thanks
    12
    Thanked 2 Times in 2 Posts
    Qt products
    Qt4
    Platforms
    Unix/X11 Windows

    Default Re: QTreeView performance slowdown...

    Quote Originally Posted by wysota View Post
    I'm sure the reason will become obvious once you run the profiler.
    Hi, wysota
    now I see profiler again.Is there a opensource or free profiler in the platform windows?
    Jerry
    Reply With Quote Reply With Quote
  4. 6th December 2008, 09:15 #4
    wysota's Avatar
    wysota
    wysota is offline The "Q"
    Nokia Certified Qt Developer
    Join Date
    Jan 2006
    Location
    Warsaw, Poland
    Posts
    33,372
    Thanks
    3
    Thanked 5,019 Times in 4,795 Posts
    Qt products
    Qt3 Qt4 Qt5 Qt/Embedded
    Platforms
    Unix/X11 Windows Android Maemo/MeeGo
    Wiki edits
    10

    Default Re: QTreeView performance slowdown...

    There are many profiling tools. I'm sure gprof is available for Windows as well. Maybe even Visual Studio has a built-in profiler.
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules

Qt is a trademark of The Qt Company.