[Development] Use of new asymmetric / hybrid CPU architectures in Qt for more energy efficiency

Vladimir Minenko vladimir.minenko at qt.io
Fri Apr 8 10:12:29 CEST 2022

Hello all,

with the introduction of the new Apple Silicon, Apple brought the concept of low power, efficiency cores to the market.

For a while, Apple provides APIs for application developers to provide hints to the OS about the role and type of work done in different threads in an app. They call it Quality-of-Service (QoS) Classes. See https://bugreports.qt.io/browse/QTBUG-93946

Windows 11 seems to support this in a different form on Intel CPUs:


Apparently, the Linux kernel 5.18 is going to get support for Intels Thread Director which would do the same on Linux:



I think it would be a great new feature in Qt to support efficient computing in a cross-platform way!

Maybe we can also co-work with KDE and make one more step in their Blue Angel initiative!


Have a nice weekend!

Vladimir Minenko
vladimir.minenko at qt.io
+49 171 90 61 461

Senior Product Manager, Qt Foundation
The Qt Company - https://qt.io

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