Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. QT and custom allocators
Forum Updated to NodeBB v4.3 + New Features

QT and custom allocators

Scheduled Pinned Locked Moved Unsolved General and Desktop
allocatorsmallocnewmemory
2 Posts 2 Posters 1.8k Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • S Offline
    S Offline
    swtsvn
    wrote on 8 Dec 2015, 21:27 last edited by
    #1

    Hi all
    I am using QTCore, QTGUI, QTWidget with C++ and would need to track memory allocations to fix huge performance issues in my project. I have custom tracking mechanism, but would need to override malloc/new for the internal allocations that QT does. Googled for a malloc hook or callback or something like that that QT provides, but couldn't find. Can anyone tell me if there is a direct way to inform QT to use custom allocators?

    1 Reply Last reply
    0
    • S Offline
      S Offline
      SGaist
      Lifetime Qt Champion
      wrote on 8 Dec 2015, 21:55 last edited by
      #2

      Hi and welcome to devnet,

      IIRC, there might something to be done. Have a look at qmalloc.cpp. But I don't remember the exact constraints.

      Hope it helps

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      1 Reply Last reply
      0

      2/2

      8 Dec 2015, 21:55

      • Login

      • Login or register to search.
      2 out of 2
      • First post
        2/2
        Last post
      0
      • Categories
      • Recent
      • Tags
      • Popular
      • Users
      • Groups
      • Search
      • Get Qt Extensions
      • Unsolved