On 17/07/2020 14:22, Richi Dubey wrote:
I found the line in the documentation: "Since the processor assignment
is independent of the thread priority the processor indices may move
from one state to the other."
This is true because the processor assignment is done by the scheduler
and it gets to choose whether to allocate the highest priority thread
or not. Right? So if it wants to allocate processor to the lowest
priority (max. priority number) thread, it can do so?
Yes, the scheduler can use whatever criteria it wants to allocate a
processor to the threads is manages.
How is the priority of a node different from the priority of its
thread? How do these two priorities relate to each other?
A thread has not only one priority. It has at least one priority per
scheduler instance. With the locking protocols it may also inherit
priorities of other threads. A thread has a list of trees of trees of
priorities.
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