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Qt 4 to feature better embedded performance

Aug 26, 2003 — by LinuxDevices Staff — from the LinuxDevices Archive

The next version of the Qt window manager, expected within a year, will run better on embedded systems, according to Qt Development Director Matthias Ettrich speaking at the KDE Developer's Conference.

Ettrich said Qt 4 will strive for:

  • Better start-up performance
    • reduced number of symbols
    • less read/write data
    • fewer static initilizers
  • Better runtime performance
    • fewer mallocs
    • faster and more optimised tool classes
    • reduced memory consumption

Ettrich said that a version of Qt Designer ported to Qt 4 resulted in a libqt size decrease of 5%, num relocs drop of 30%, malloc use drop of 51%, and memory use decline of 15%. Startup time declined by 18%.

Qt 4 will comprise multiple smaller libraries, too, for leaner deployments.

More detailed technical information from Ettrich's remarks is available at

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