Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. QML and Qt Quick
  4. Qml file and performance
Forum Updated to NodeBB v4.3 + New Features

Qml file and performance

Scheduled Pinned Locked Moved QML and Qt Quick
5 Posts 4 Posters 1.2k 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.
  • A Offline
    A Offline
    aabc
    wrote on last edited by
    #1

    Does parameters like spaces, comments, new lines etc. on the Qml file impact performance ?

    1 Reply Last reply
    0
    • sierdzioS Offline
      sierdzioS Offline
      sierdzio
      Moderators
      wrote on last edited by
      #2

      Probably yes, but only when the files are being parsed (at the start of the application). I guess the impact is negligible, but maybe it would be a good idea to check that using a benchmark.

      (Z(:^

      1 Reply Last reply
      0
      • S Offline
        S Offline
        Scrincer
        wrote on last edited by
        #3

        So the qml files arent compiled? It would be interesting to compare the performance of a minimized qml file.

        1 Reply Last reply
        0
        • M Offline
          M Offline
          morte
          wrote on last edited by
          #4

          QML, JS are interpretable.

          1 Reply Last reply
          0
          • sierdzioS Offline
            sierdzioS Offline
            sierdzio
            Moderators
            wrote on last edited by
            #5

            [quote author="Scrincer" date="1415116079"]So the qml files arent compiled? It would be interesting to compare the performance of a minimized qml file.[/quote]

            No, they are interpreted when the application starts - after that there is no need to parse them again. In some situations (release builds on non-embedded platforms), the JavaScript code is compiled using JIT.

            It is possible to compile QML code, a compiler is available in Qt Commercial Package. It is not available in the Open Source version.

            (Z(:^

            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