On Wed, Sep 21, 2022 at 10:39:15AM +0200, Mattias Rönnblom wrote: > I have some lcore-related questions: > > The documentation make use of the term "non-EAL thread". Is a non-EAL thread > the same thing as a non-lcore thread? I.e., are there EAL threads that are > not lcore threads?
Yes, there are some threads created by EAL which are not lcore threads. These are generally for background tasks, such as interrupts or telemetry, and are given a coremask to be kept away from the dataplane lcore threads. Therefore, I think you are right to try and get clear terminology for the threads. In most cases, I think non-EAL thread is referring to threads created by the app itself, but it may in some cases refer to the 'non-lcore threads' as you call them. Personally, I would suggest terms like: * dataplane threads * background eal threads * app threads for clarity, since I think the term EAL thread is ambiguous. However, you or others might have been ideas for terms. > > I also have a question related to rte_register_thread(): shouldn't the > documentation say the user is assumed to pin the calling thread to some > core? That is the expectation, correct? Probably, but it's not mandatory.
