this post was submitted on 14 Oct 2024
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IINM whether it's "true" parallelism depends on the number of hardware cores (which shouldn't be a problem nowadays). A single, physical core means concurrency (even with "hyper threading") and multiple cores could mean parallelism. I can't remember if threads are core bound or not. Processes can bound to cores on linux (on other OSes too most likely).
Python does have async which is syntax sugar for coroutines to be run in threads or processes using an executor (doc). The standard library has asyncio which describes valuable usecases for async/await in python.
Is "At" a typo?
You're welcome :) I discovered the GIL the hard way unfortunately. Making another person aware of its existence to potentially save them some pain is worth it.
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On Linux, by default they're not. getcpu(2) says:
Thank you. That's good to know. In my OS architecture lectures, we were introduced to an OS with core bound threads. I can't remember if it was a learning OS or something that really existed, hence my doubts.
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Yes I wanted to talk about the Qt Framework. But with that much ways to do concurrency in the language's core, I suspect you would use this framework for more than just its signal/slots feature. Like if you want their data structures, their network or GUI stack, …
I'm not using Python, but I love to know the quirks of each languages.