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
QtWS25 Last Chance

QT and custom allocators

Scheduled Pinned Locked Moved Unsolved General and Desktop
allocatorsmallocnewmemory
2 Posts 2 Posters 1.8k Views
  • 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 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
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on 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

      • Login

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