what is thread affinity

[JadeN001]

I have read all about threadAffinity in Qtfrom all over google but i really do not understand what actually it is.what is meanning of "threadAffinity".please tell me based on your understanding.

[JonB]

@JadeN001
https://forum.qt.io/topic/58928/what-is-the-meaning-of-thread-affinity
https://stackoverflow.com/questions/23931492/confusion-regarding-qthread-qobject-thread-affinity-and-event-loop
https://en.wikipedia.org/wiki/Processor_affinity
?

[JadeN001]

@JonB i already read all these link.but i don't understand its proper meaning.

[JonB]

@JadeN001
I thoguht https://forum.qt.io/topic/58928/what-is-the-meaning-of-thread-affinity/2 from @JKSH made it clear:

If the receiver QObject has an affinity for Thread B, then the slot function runs in Thread B.
You can change the QObject's thread affinity by calling QObject::moveToThread().

It's a way of choosing which thread a QObject's slot functions run in.

[mrjj]

Hi
If you think of affinity as "belongs to/run on/in that context" it might make more sense.